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Search Results: 1 - 10 of 11260 matches for " Magda Aparecida Maia;Deschamps "
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Adventitious rooting of auxin-treated Lavandula dentata cuttings
Bona, Claudine Maria de;Biasi, Luiz Antonio;Lipski, Bernardo;Masetto, Magda Aparecida Maia;Deschamps, Cícero;
Ciência Rural , 2010, DOI: 10.1590/S0103-84782010005000081
Abstract: lavandula species may be propagated by seeds. however, plants will present expressive variation both in size and essential oil content. indole-3-butyric acid (iba) is a growth regulator which efficiently stimulates rooting and the objective of this research was to observe the influence of different iba concentrations on rooting of l. dentata cuttings. herbaceous cuttings with approximately 10cm in length and around 1/3 of leaf retention had their bases submerged into 0 (control), 500, 1.000, 2.000 or 3.000mg dm-3 of iba diluted in de-ionized water for 30 seconds and placed in polystyrene foam trays filled with commercial substrate and kept under intermittent mist system. averages of root number, length of the longest root, fresh and dry root weight, and percentage of rooted cuttings were evaluated after 60 days. there was no significant difference between treatments for the length of root, fresh and dry root weight. the percentage of rooted cuttings increased with iba concentrations. a quadratic regression was obtained to root number. the 2.000mg dm-3 dose increased the percentage of rooted cuttings and the mean root number per cutting. l. dentata cuttings are easy to root.
Rooting induction of different Lavandula angustifolia accessions by auxin application Indu o de enraizamento em diferentes acessos de Lavandula angustifolia por meio de aplica o de auxina
Claudine Maria de Bona,Magda Aparecida Maia Masetto,Cícero Deschamps,Luiz Antonio Biasi
Semina : Ciências Agrárias , 2012,
Abstract: Lavandula angustifolia Miller (lavender), considered a hard to root species, is comprised of many varieties and horticultural forms, and genotypes from different provenances may present variance in rooting capacity. The objective of this experiment was to test different concentrations of indol-3-butyric acid (IBA) on rooting of eight (G1 to G8) L. angustifolia genotypes from different provenances. Cuttings were treated with different doses (0 to 2000 mg L-1) of IBA. Rooting percentage (RP), root number (RN), and length of the longest root (RL) were evaluated. The different accessions presented very diverse response to IBA application. IBA did not exert influence on rooting of G1, G2, and G7; was benefic to G3 until 700 mg L-1; was benefic to G4 and G6; and was prejudicial to G5 and G8; the same IBA dose which promoted better rooting on G3 (700 mg L-1) was toxic to G5; 1500 mg L-1 of IBA promoted better rooting, greater root number and length on G6 but was completely and significantly detrimental to G8. G1 and G3 presented high rooting percentages, in spite of L. angustifolia being considered a hard to root species. G4, G5 and G6, however, presented very poor rooting, compared to the other genotypes. Necessity of auxin application and adequate dose may not be generalized to L. angustifolia different accessions. Its use should be incentivized when the genotype is recalcitrant to root and auxin concentration should be adjusted to it. A Lavandula angustifolia Miller (alfazema), considerada de difícil enraizamento, apresenta muitas variedades e formas horticulturais, e genótipos de diferentes procedências podem apresentar varia o na sua capacidade de enraizamento. O objetivo deste experimento foi testar diferentes concentra es de ácido indol butírico (AIB) no enraizamento de oito genótipos (G1 a G8) de L. angustifolia de diferentes procedências. Estacas foram tratadas com diferentes doses (0 a 2000 mg L-1) de AIB. Porcentagem de enraizamento (RN), número de raízes (RN) e comprimento da maior raiz (RL) foram avaliados. Os diferentes acessos apresentaram diferentes respostas à aplica o de AIB, que n o influenciou no enraizamento de G1, G2 e G7; foi benéfica para G3 até 700 mg L-1; benéfica para G4 e G6; e prejudicial para G5 e G8; a mesma dose de AIB que promoveu melhor enraizamento em G3 (700 mg L-1) foi tóxica para G5; 1500 mg L-1 de AIB promoveu melhor enraizamento, maior número e comprimento de raízes em G6 mas foi completamente e significativamente prejudicial para G8. G1 e G3 apresentaram altas taxas de enraizamento, apesar da L. angustifolia ser cons
Significance of the Thalamic Reticular Nucleus GABAergic Neurons in Normal and Pathological Activity of the Brain  [PDF]
Zakaria I. Nanobashvili, Arkadi G. Surmava, Irine G. Bilanishvili, Maia G. Barbaqadze, Magda D. Mariamidze, Nadejda A. Khizanishvili
Journal of Behavioral and Brain Science (JBBS) , 2012, DOI: 10.4236/jbbs.2012.24051
Abstract: The relationship between neurons of the thalamic reticular nucleus (TRN) and relay neurons of the thalamic nuclei was studied. Activation of the TRN neurons was shown to abate activity of relay neurons. This evidence was obtained by stimulation of the TRN and the neocortex and, by introduction of small doses of nembutal as well. Suppression of the relay neuronal activity by the TRN neurons is supposed to occur monosynaptically. It has been also revealed that neuronal activity of the TRN enhances in a clonic phase of seizures generated by stimulation of the hippocampus and as soon as the electroencephalographic seizure reactions disappear. The suppression of limbic motor seizures is obviously related to the process of potentiation in GABAergic synapses of thalamocortical networks. Thus, stimulation of the TRN appears to be a rather valuable methodical tool that can open up prospects in the development of new “anticonvulsive” strategies in the treated of temporal lobe epilepsy.
Gravidade das intoxica??es por inseticidas inibidores das colinesterases no noroeste do estado do Paraná, Brasil
Oliveira, Magda Lúcia Félix de;Buriola, Aline Aparecida;
Revista Gaúcha de Enfermagem , 2009, DOI: 10.1590/S1983-14472009000400010
Abstract: this article has as objective the discussion of the severity of intoxications by cholinesterase inhibitor insecticides, which happened in the northwest of paraná, brasil, starting from an exploratory descriptive study, with retrospective analysis of epidemiological data sheets of the intoxications control center in the university hospital of maringá, paraná, brasil, referring to patients intoxicated from january, 1994 to december, 2005. 529 cases were analyzed, 168 (31,7%) for organophosphates and 167 (31,5%) for carbamates. the suicide attempt represented 257 cases (48,5%), the occupational exposure 140 (26,5%), and the accidental 124 (23,5%). comparing the number of severe intoxications and deaths, it was verified from 100% of deaths to cases severe occupational exposure, 20% for the suicide attempt and 7,5% deaths for the accidental intoxications classified as severe. the high incidence of serious intoxication and mortality suggest preventive strategies in respect of the usage of the insecticides, aiming to restrict the indiscriminate access to these powerful toxic agents.
Evaluation of Larval Development of Dirofilaria immitis in Different Populations of Aedes aegypti and Aedes albopictus  [PDF]
Gílcia Aparecida de Carvalho, Rafael Trindade Maia, Rafael Antonio Nascimento Ramos, Carlos Fernando Salgueirosa de Andrade, Maria Aparecida da Gloria Faustino, Leucio Camara Alves
Open Journal of Veterinary Medicine (OJVM) , 2013, DOI: 10.4236/ojvm.2013.36045
Abstract: Dirofilaria immitis is an important nematode parasite commonly known as heartworm. This filarioid is transmitted by culicid vectors and primarily affects dogs, but other animals may also become infected, such as wild carnivores, cats and humans. The aim of the present study was to assess the development of D. immitis larvae in different culicid populations under laboratory conditions. Adult females of populations of Aedes aegypti from the city of Recife (P1), the city of Campinas (P2) and the Rockefeller strain from the Centers for Disease Control (P3) and one population of Aedes albopictus from Recife (P4) were fed for two hours with infected dog blood containing 2,000 microfilariae/ml of D. immitis. After artificial feeding, the specimens were maintained under controlled conditions. Ten females from each population were dissected daily over 14 days. The infection ratio and vector efficiency index were calculated and D. immitis development from L1 to L3 was assessed. The larvae in P1, P2, P3 and P4 reached the third stage in 11, 10, 14 and 9 days, respectively. The vector efficiency index was 53.8%, 20.0%, 7.4% and 25.2% in P1, P2, P3 and P4, respectively. The findings demonstrate that D. immitis larvae develop in all culicid populations studied herein. Based on mosquito mortality, development time and VEI the A. albopictus population from Recife (P4) demonstrated the best performance as vector. This is the second report of D. immitis development in A. albopictus from Brazil. The present data reinforce the role of this species as vector of D. immitis in an area where greater importance has long been given to A. aegypti.
Moral Judgment: Truth, Order and Consequence  [PDF]
Magda Osman
Psychology (PSYCH) , 2015, DOI: 10.4236/psych.2015.65061
Abstract: Often we make snap moral judgments based on limited information. For instance upon reading a newspaper headline we very quickly decide on whether the implied outcome is good or bad. However, in situations like this we are also likely to revise our judgments when we read the main story and the conclusion of the article. One question yet to be answered is whether we adjust our moral judgments in a systematic way as we gain more details about a moral scenario. Two experiments (lab-based, online) addressed this question along with the influence of other factors on moral judgments (the origin of the moral scenario, the severity of the consequence of the scenario). Across both experiments, moral judgments were: 1) generally adjusted downwards as more information was presented; 2) more severe for headlines than the main story or the conclusion; 3) more severe for scenarios that were fabricated than real life stories; 4) more severe when the conclusion involved a severe consequence than a non-severe consequence.
Dynamic Moral Judgments and Emotions  [PDF]
Magda Osman
Psychology (PSYCH) , 2015, DOI: 10.4236/psych.2015.68090
Abstract: We may experience strong moral outrage when we read a news headline that describes a prohibited action, but when we gain additional information by reading the main news story, do our emotional experiences change at all, and if they do in what way do they change? In a single online study with 80 participants the aim was to examine the extent to which emotional experiences (disgust, anger) and moral judgments track changes in information about a moral scenario. The evidence from the present study suggests that we systematically adjust our moral judgments and our emotional experiences as a result of exposure to further information about the morally dubious action referred to in a moral scenario. More specifically, the way in which we adjust our moral judgments and emotions appears to be based on information signalling whether a morally dubious act is permitted or prohibited.
Behavioral Economics: Where Is It Heading?  [PDF]
Magda Osman
Psychology (PSYCH) , 2015, DOI: 10.4236/psych.2015.69109
Abstract: The addition of “behavioral” to economics has given rise to a highly successful field of research. But, is it just a fashionable new trend or is it here to stay? More to the point, how does it differ from its close relative psychology? To answer these questions, the present article considers what behavioral economics is, and where it started, with the aim of trying to forecast what the status of it will be in the future. In forecasting where behavioral economics might be heading, the argument proposed here is that the best clues can be found in psychological research. If, as has been proposed here, behavioral economics partners research trends in psychology, then the futures of both will almost certainly be moving in the same direction. Both are beginning to, and will start to rely on online tools/mobile phone applications to collect richer data revealing dynamic tends over long time horizons, and as technology continues to facilitate ways of looking at group behaviour online, then larger scale studies examining interactions amongst multiple groups of people will become the norm rather than the exception. More specifically this article speculates on the future research focus of researchers in behavioral economics and the extent to which this will overlap with psychological research on judgment and decision-making.
Effects of Caffeine on the Organism—Literature Review  [PDF]
Marcio Antonio Ferreira Camargo, Carmen Aparecida Cardoso Maia Camargo
Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105265
Caffeine is the most widely consumed stimulant. Caffeine is known to in-crease energetic metabolism throughout the brain, but it also decreases cerebral blood flow, inducing relative cerebral hypoperfusion. Caffeine ac-tivates norepinephrine neurons and appears to affect the local release of dopamine. Many of the warning effects of caffeine may be related to the action of methylxanthine on serotonin neurons. In this sense, this study aimed to identify the main effects of caffeine on the body. This is a literature review study addressing the main effects of caffeine on the body. In order to select the studies, an online survey of articles has been conducted on sites such as the Scientific Electronic Library Online (SciELO), Medical Literature Analysis and Retrieval System Online (MEDLINE) and Latin American and Caribbean Literature in Health Sciences (LILACS), using the descriptors “caffeine”, “effects of caffeine” and “methylxanthine”. We included the studies published between the years 2000 to 2018, which explicitly contemplate the evaluated aspects. In general, caffeine has effects on anxiety and sleep that vary according to individual sensitivity to methylxanthine. The central nervous system does not appear to develop a great tolerance to the effects of caffeine, although the symptoms of dependence and withdrawal are reported.
The Good Teacher of High School in the Representation of the Students Body  [PDF]
Carmen Aparecida Cardoso Maia Camargo, Marcio Antonio Ferreira Camargo
Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105428
The present study aims to analyze the representations about the good teacher in the eyes of the students of the third grade of High School. The empirical material was obtained through a semi-structured interview and questionnaire, with forty-nine students of the 3rd year of high school, from two public schools located in the interior of the State of Minas Gerais, Brazil. The research carried out is of a qualitative approach, using the concept of social representation. The evaluations of the representations referring to what the students consider as “good teacher” allowed to identify attributes related to the personal attitude of the teacher, as well as their pedagogical action, that is, what was called attributes of the scope of the BE and the DOING of the teacher. It was verified that in the opinion of the students, the good teacher is the one who has mastery of contents of the taught discipline and good didactics, as well as accomplishes his teaching task through a good relationship with the students. The research contributed to highlight the importance of establishing adequate interpersonal relationships in the constitution of the representation that the students have regarding a “Good Teacher”. This finding has implications for the training of high school teachers.
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