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Influência da terapia laser de baixa intencidade em células precursoras miogênicas (in vitro) e durante a regeneração muscular (in vivo)
(Universidade Federal de São Carlos, 2004-03-11)
Amaral, André Capaldo
;
Salvini, Tânia de Fátima
;
https://lattes.cnpq.br/4391969032505723
The Low Intensity Laser Therapy (LILT) constitutes one of the resources most used by physical therapists, with the goal of stimulating the process of repairing the skeleton muscle tissue. On the other hand, the intense utilization, its respective action mechanisms and therapeutic effectiveness are not scientifically proved. Based on this, we elaborated the present study aiming to investigate the influence of the LILT, at wavelengths (λ) usually used at clinical practices (670, 685 and 830 nm), on the function of the Myogenic Precursor Cells (MPCs), directly responsible for the tissue regeneration process. The beginning phase was carried out throughout in vitro experiments, determining the alterations started by radiations over the proliferation ability and the cellular differentiation. The MPCs used were in the second passage, after had been extracted from four days old Wistar rats. To analyze the proliferation, it was elaborated, for each λ, a dose-response data curve including the control group constituted of non-radiated cells, and the irradiated groups with doses of 0.3; 0.6; 0.9; 1.2; and 1.5 J/cm2. This procedure was carried out with the cells under the influence of 5 or 10% of fetal bovine serum (FBS). The dose demonstrating the highest effectiveness on the cellular proliferation in each radiation, was used to establish the influence on the process of cellular differentiation, and investigated throughout the analysis of the expression of the genes related to the isoforms IIa and IIx of the myosin heavy chain (MHC). The final phase of the study was pointed towards the radiation action evaluation, at the same dose parameters used before, on the muscle regeneration process in vivo, after induced cryoscopy lesion at the Tibialis anterior muscles of adults Wistar rats. There were evaluations of the histological, histochemical aspects for the Succinic Dehydrogenase enzyme (SDH) and the activity of the Lactate Dehydrogenase enzymes (LDH) and Citrate Sintase (CS). The outcomes demonstrated that the radiation at λ of 670, 685 and 830 nm promoted an increase of 56.8, 70.6 and 84.8 % on the proliferate ability of the PMCs. These values were achieved with the 1.2, 0.6 and 0.3 J/cm2 doses respectively, and with the cells under the influence of 5% of FBS. The highest concentration of serum (10% of FBS) determined a less pronounced bio-stimulating effect, rising only 13.6, 17.5 and 10.9 %, respectively. In relation to the MHC isoforms expression rate, it showed that there was a significant fall of the IIa isoform, due to the action of the 685 nm, and an increase of the IIx isoform, due to the action of the 685 and 830 nm radiations, in relation to the non-radiated cells rate. By means of in vivo analysis, it was possible to demonstrate the ability of radiation at λ of 685 and 830 nm on increasing DHL enzymes and CS during the muscle regeneration process. Therefore, according to the outcomes it is allowed to attribute to the LILT an ability λ and dose-dependent of influencing the proliferation function and the metabolism of the MPCs. It was not possible to infer its effect on the cellular differentiation process, because of the inverted effect on the MHC isoforms expression, though.
Poder local e representação política : negros e imigrantes no interior paulista (um estudo sobre o município de Rio Claro)
(Universidade Federal de São Carlos, 2004-03-11)
Pereira, Flávia Alessandra de Souza
;
Monsma, Karl Martin
;
https://lattes.cnpq.br/3083149924291027
Processos quânticos em cavidades com a geometria variável
(Universidade Federal de São Carlos, 2004-03-11)
Andreata, Mauro Antonio
;
Dodonov, Viktor
In this thesis, we study the quantum de ection of ultracold particles by mirrors, the shrinking of free wave packets, the tunnelling of narrow Gaussian packets through delta potentials and the entanglement between the modes of electromagnetic eld in a vibrating cavity.
Uma revisão do fator de Bayes com aplicação à modelos com misturas
(Universidade Federal de São Carlos, 2004-03-11)
Missão, Érica Cristina Marins
;
Milan, Luis Aparecido
;
https://lattes.cnpq.br/0128651590646397
Macroinvertebrados bentônicos em córregos da Estação Ecológica de Jataí, Luiz Antônio, SP: subsídios para monitoramento ambiental
(Universidade Federal de São Carlos, 2004-03-12)
Guereschi, Renata Maria
;
Gessner, Alaíde Aparecida Fonseca
;
https://lattes.cnpq.br/8465752836529703
The Jataí Ecological Station (EEJ), located in Luiz Antônio, State of São Paulo, Brazil, is a Conservation Unit of Indirect Use in an area jeopardized by highly mechanized agriculture and subject to multiple disturbances, which pose threats to its biodiversity. The aim of this work was to evaluate the environmental conditions of the Boa Sorte, Beija-Flor and Cafundó streams in the EEJ and of a stream near this station, in Luiz Antônio, through the study of benthic macroinvertebrates. To this end eight collection sites were established, and sampling was carried out bimonthly from December 2000 to August 2002. The water samples collected were subsequently taken to the lab and had their nutrients and suspended solids analyzed. Other abiotic variables were measured in situ. Artificial substrate was used to capture the benthic macroinvertebrates. The analyses of the physical and chemical variables confirmed the characterization of distinct periods (dry and rainy) and the influence of the overflowing of the Mogi-Guaçu river at the sites located in the flood plain. There were collected 8,072 specimens, distributed among 81 taxonomic units, out of which 36 corresponded to groups of higher categories up to the family level and 46 genus of Chironomidae. The taxocenosis analyses of the benthic macroinvertebrates indicate temporal and spatial differences reflecting the two seasonal periods (dry and rainy), with higher organism densities and taxonomic richness in the dry season. Although most of the taxa were found at all sampling sites, differences in fauna composition were observed, which reflecting the activities developed in every micro-basin monitored in this work.
Análise do uso da linguagem em crianças com deficiência visual sob uma perspectiva funcional
(Universidade Federal de São Carlos, 2004-03-12)
Oliveira, Jáima Pinheiro de
;
Oliveira, Susi Lippi Marques
The importance of the language for the visual impairments children is unquestionable. Therefore, it is in function of it that they plan, modify or they improve their behavior. In the scientific field, it is discussed until the point the absence of the vision intervenes in its acquisition, development and use. The main objective of this study was to analyse the differences and similarities between the pragmatic performance of the language of visual impairments and sighted children in different contexts. Six preschoolers and their mothers had participated in the set of observations: two blind children; two visual impairments children; and two sighted children. The participants from Instituto dos Cegos do Brasil Central (MG) were chosen after a critical selection performed by clinical diagnostic and anamnese interviews with their mothers. Free and planned monitoring sections were performed in their homes and in the Instituto dos Cegos. In addition, the sections were taperecorded. The analyses of different situations were based on the functional use of the language, being considered communicative functions, as well as the ways used in the emissions. The results had indicated that the predominant way in the communication is the verbal one. The children with low vision capacity used more motor actions, because of the attempt to nominate them verbally, later. The blind children used more the verbal way in its communication, mainly to require information of the environment and after that to plan or to modify its behavior. In relation to the stimulation in their homes, it was possible to verify the use of materials adapted (ball-bell) by some mothers as well as alterations in the interaction between mother-child, which was evidenced mainly for low the frequency of communicative functions arisen from the children. The results of the study had important educational implications, mainly for the interventions with the family in their homes.
Memória musical de São Carlos: retratos de um conservatório
(Universidade Federal de São Carlos, 2004-03-15)
Amato, Rita de Cássia Fucci
;
Abramowicz, Anete
The aim of this thesis to establish considerations and understanding on the historical and cultural meaning of the Conservatório Musical de São Carlos , founded in 1947. The institution is pictured with the intention of unveiling its significance from its golden age´ to its decline, culminating in its closure in 1991. Research was carried out based on documental papers (primary sources) belonging to the Biblioteca Municipal de São Carlos (Municipal Library of São Carlos) and also on interviews of former teachers and students, with the aim of mapping its 44 years of existence. An analysis of the content of the different interviews made it possible to clarify the formation of the student body their families, their socioeconomic and cultural situation, thus establishing the real profile of the target audience of the institution, - their intentions, longings and professional perspectives. It also discloses the possible reasons for the success and long existence of the conservatorium its pedagogic strength and the musical legacy passed on from generation to generation of students.
A ciência que veio da lama: uma abordagem etnoecológica das relações ser humano/manguezal na comunidade pesqueira de Acupe, Santo Amaro-BA
(Universidade Federal de São Carlos, 2004-03-16)
Souto, Francisco José Bezerra
;
Marques, José Geraldo Wanderley
;
https://lattes.cnpq.br/7962059488333070
Mangrove ecosystems have a high biomass and biodiversity concentration. High productivity supports the exploitation by many traditional populations that survive on shellfish s catching and artisanal fishery, like those who live in the Acupe District, located in Santo Amaro, in the west coast of the Todos os Santos Bay (Bahia State, Northeast Brazil). Many resources are exploited locally, such as swimming crabs, crabs, bivalves and a great variety of fishes. The objective of this work was to study the shellfish catching and fishery under the Marques broad ethnoecological approach. It was used as a focal reference, aiming to identify the basic connections between human beings and mangrove ecosystem. Semi-structured interviews were conducted with shellfishwomen and fishermen, in order to know thinkings (knowledge and beliefs) and behaviors involved in many exploitation modalities. Direct observation of the informants daily working activities was also accomplished. Photographic recording was made during these activities, aiming to produce a visual ethnography. The results were analysed with a combined etic-emic approach, by comparing folk and scientific knowledge. The observed traditional behavior was correlated to possible environmental implications. It was observed a significant body of traditional knowledge about classification, trophic ecology, morphology, physiology, phenology, ecozonation and hydrodynamics, as well as about mangrove ecosystem dynamics. In some cases, this knowledge was compatible to those accepted by academic ones. The five basic connections predicted by the Marques approach were evidenced in the local shellfishing and fishery. Fishers interactions with minerals, plants, animals, human beings and supernatural elements revealed perception and utilization ways strongly associated to local culture, with important environmental implications.
Processo de formação de educadores sociais na área da infância e juventude
(Universidade Federal de São Carlos, 2004-03-16)
Vangrelino, Ana Cristina dos Santos
;
Oliveira, Maria Waldenez de
;
https://lattes.cnpq.br/3404769527869004
The present research investigates professionals of Human Sciences at the assistance of street children and adolescents. It was tried to identify and analyses their concepts of child, adolescent, education and educator built during their personal and professional life. To achieve this, three educators were interviewed at the Yellow House Project of the Social Assistance of Campinas, its purpose being the assistance of children and adolescents in hazardous conditions. The research was conducted to the formation processes of such educators prior to, after and during their involvement with that project. Thus the research offers subsidies to proposals of educator formation, in general, and for the education of children and adolescents in hazardous conditions in particular.
Hume, Mach e Skinner: a explicação do comportamento
(Universidade Federal de São Carlos, 2004-03-17)
Laurenti, Carolina
;
Abib, José Antônio Damásio
Radical behaviorism was presented as the philosophy of science of human behavior. This has important consequences. One of them has to do with questions regarding scientific explanation. The present essay essentially deals with the following question: what is the model of explanation of radical behaviorism? Some characteristics of the explanation model of behavior are examined, based on a discussion of the ideas of Skinner and two others philosophers of science, to wit, David Hume and Ernst Mach. Hume offers a logical-empirical critique of the concept of causality as necessary connection, by arguing that causal relations can not be demonstrated on the basis of statements of fact. Moreover, experience does not furnish the necessary causal link between cause and effect. He concludes the human knowledge deals solely with constant relations. This critique was taken over by Skinner by way of Mach s functional descriptivism . Mach s substitution of the concept of cause by that of functional relations, and its consequent distinction between scientific explanation and causal explanation is based on Hume s critique. One might also argue that Mach advances on Hume s critique by asserting that the world is, in principle, probabilistic. Skinner, from the beginning, offered an interpretation of behavioral theory as description in accordance with Mach s philosophy of science. Accordingly, he limited himself to explaining behavior in terms of functional relationships. However, it is argued that the explanation of behavior is not only the discovery of functional relations. Skinner does not comply with the restrictions of descriptivism when he offers an interpretation, beyond the bounds of mere functional relations, of the origin of behavior, as is the case with philogenetic behavior and with cultural practices. Accordingly, interpretation is included in radical behaviorism s explanatory system. In this way, the theory of behavior, without rejecting descriptivism, may be associated with a version of scientific instrumentalism. This is done via Mach in a somewhat surprising way. Mach s emphasis on the notions of scientific concept and hypothesis leads us to a kind of reticent instrumentalism which emerges as a reaction to the realist view of theories. As a version of scientific instrumentalism, the theory of behaviorism can be seen as pragmatic, and so radical behaviorism enters the field of ethics. The alliance of descriptivism and instrumentalism rule out realist interpretations of the theory of behavior. A reading of Skinner s theory from the perspective of the philosophical works of Hume and Mach also weaken the association of radical behaviorism with the metaphysical determinism. It is concluded that the model of selection by consequences is a functional, instrumental and probabilistic, rather than causal, way of explaining behavior.
Subsídios para o manejo participativo da pesca artesanal da manjuba no Parque Estadual da Ilha do Cardoso, SP
(Universidade Federal de São Carlos, 2004-03-18)
Cardoso, Thaís Almeida
;
Nordi, Nivaldo
;
https://lattes.cnpq.br/8168865557947289
;
https://lattes.cnpq.br/1975625195000271
The manjuba small-scale fishing, also known as "iriko" fishing, is a common "caiçara" practice which has been present in Cardoso Island for approximately seventy years. The need to study this kind of fishing results from restrictions to this activity imposed by the legislation, due to the small mesh of the nets used. This work was developed in the Enseada da Baleia and Vila Rápida communities with the aim of obtaining subsidies for the comanagement of manjuba fishing. Human Ecology and Ethnoecology approaches were used as the research leading line, and the following methodological procedures were used: open or free interviews, direct observation, life history, quizzes for production results, fishing efforts, and accompanying fauna . Data about the technique and strategies used in the manjuba fishing and about the studied fishermen local knowledge, including the ethnobiological classification of manjuba, were obtained, and the social, ecological and economical aspects involved in this type of fishing were analyzed. It was noticed that the fishermen s knowledge and experience as well as the fishing gear limitations are important for the execution of more selective fishing and for the conservation of the resource. However the lack of current studies about the manjuba stock in the region hinders the analysis of the production data obtained from the point of view of its sustainable exploitation. It was observed that industrial fishing, official control and restricted market are the main external factors that directly interfere in the fishing activity studied here. Some proposals were suggested for the management of manjuba fishing, highlighting the need of performing this activity with the participation of the communities who are users of this resource. It is important to obtain alternative forms of uses and management of natural resources which should be ecologically and socially appropriate starting from the dialog and knowledge integration between researchers, public institutions and human groups studied.
Comportamento verbal novo e comportamento criativo: uma análise do "Verbal Behavior".
(Universidade Federal de São Carlos, 2004-03-18)
Bandini, Carmen Silvia Motta
;
Rose, Julio Cesar Coelho de
;
https://lattes.cnpq.br/3386857761295187
One of the factors indicating the complexity of verbal behavior, defined by Skinner as behavior mediated by the other s action, is the possibility of variation and productivity possibility shown by this behavioral form. The present study analyzed the Skinnerian explanation on the arising of new verbal behavior presented in the book Verbal Behavior. This study systematizes the different kinds of behavioral processes and procedures involved, which, in most cases, do not appear in an organized way in the book. According to Skinner, we understand new verbal behavior as 1) arising of new responses in the individual s repertoire when these topographies already exist in other individuals repertoires, as well as already acquired speaker responses that now are emitted under new controls; 2) new responses produced in a community, thus new to the individual and to the verbal community as a whole. An analysis of a few literary works illustrated the analysis of Skinner s work presented in this study.
A concepção de Homem no Behaviorismo Radical de Skinner: um compromisso com o bem da cultura
(Universidade Federal de São Carlos, 2004-03-19)
Melo, Camila Muchon de
;
Abib, José Antônio Damásio
;
https://lattes.cnpq.br/1015798975492836
B. F. Skinner describes and explains human behavior through the selection by consequences causative model. According to this model, human behavior evolves through interactions among three levels of variability and selection (phylogeny, ontogeny and culture). Three flaws are pointed out by the author in the selection by consequences model. The conception of Man as a cultural planner, suggested in this study, allows the solution of the third flaw . This study had as its aim to investigate Man s conception in Skinner s Radical Behaviorism, derived from his theory on behavior evolution, interpreted as a commitment to the good of the culture. To achieve this, this thesis goes through three aspects: 1st Behavior evolution through the interrelations between survival and reinforcement contingencies; 2nd-Cultures evolution through the interrelations between reinforcement and cultural contingencies; 3rd Man s conception in Skinner s Radical Behaviorism in benefit of the good of the culture.
Etnobiologia de uma comunidade ribeirinha no Alto da Bacia do Rio Aricá Açu, Cuiabá, Mato Grosso, Brasil
(Universidade Federal de São Carlos, 2004-03-23)
Pasa, Maria Corette
;
Soares, João Juares
;
https://lattes.cnpq.br/6093800182799882
This study was carried out in a rural community Conceição-Açu located in the country of Cuiaba, Mato Grosso state. The main purpose of this paper was to interpret the existent relationship between the population and their environment, inserted in the socio cultural and environment context related to the use of vegetal plants and animal resources. Through the information given, it was possible to analyse the social structure and the quality of life of the people in the region and identify the different ways of using the natural resources and the knowhow the population has about the environment through the techniques used in the conservation process. The method used combined qualitative and quantitative aspects when putting into practice the following stages: ecological description of the ecosystems; socio economical description of the families involved in this study, a follow up of the main productive activities and also of the activities of collecting in the gallery woods; Checking of the different strategies used in the preparation and conservation of the vegetal plant resources and the interpretation of the etnobiological knowledge, giving emphasis to the etnobotanic and etnozoologic aspect, given by yhe local population. The rural inhabitants identify several micro habitas in the interior of the gallery wood, to which the presence of certain species of vegetal plants and animals are associated. People showed a comprehensive understanding of the trophic and reprodutive behaviour of the animals that they know and live with in their properties and in nearby areas, not forgetting the ecological association plant-animal-plant. It s attributed to the plants (suffer more or less; react a lot or react a little) and to the animals (eat a lot or a little, they are wild or tame) a classification by bynary opposition because of their behaviour. Starting from the etnoknowledge that the local population showed about the use of the natural resources it was possible to make the comparison with the scientific knowledge, through tables, aiming at showing the agreement between both interpretation about the ecosystem and its natural resources. The value of use of the vegetal plant species revealed and interaction of the people with the environment, pointing to the relevence of the gallery wood for the storage of renewable natural resources. The economic exploitation in the region has a small environment impact, favoring, in this way the conservation of the local flora and fauna.
Caracterização da pesca artesanal na costa do Estado do Ceará, Brasil
(Universidade Federal de São Carlos, 2004-03-25)
Silva, Sônia Maria Martins de Castro e
;
Verani, José Roberto
;
https://lattes.cnpq.br/0053232138684810
The present work has as objectives: (a) to characterize the artisanal fisheries in Ceará State s continental shelf, through a complete description of boat types, gear designs and used fishing methods; (b) to analyze the fish fauna of Camocim, Paracuru, Fortaleza, Caponga and Fortim fishing locations, as concerns composition, space and time distribution, abundance, frequency of occurrence, dominance, diversity, equitability, richness of species and similarity, referring to the rainy and dry seasons; and (c) to address some relative aspects to the ecology of those species. A total of 3,947 boats make up the artisanal fleet (sailboat fleet) of Ceará state, from which 1,831 are small rafts, 1,177 canoes, 410 sailboats, 340 large rafts and 189 sailcrafts. Catching is performed mainly through the use of hand-lines and gillnets. A total of 183,530 captured individuals were classified into 124 species, 50 families and 14 orders, prevailing the order Perciformes, with predominance of the Carangidae, Haemulidae and Sciaenidae families. Out of 124 species, 91 were found to occur in more than one of the studied fishing locations and 97 were observed both in the rainy and dry seasons. The majority of species presented the following characteristics: they inhabit only one of the following fishing areas on the continental shelf: costa (nearshore fishing grounds), risca (intermediate fishing grounds) and alto (distant-water fishing grounds); they live on or close to the sea bottom, especially on rocky substrates; they do not form shoals; they do not migrate; they are more frequently fished for during daytime and yield larger catches in hook-and-line fisheries. Yellowtail snapper (Lutjnaus chrysurus) was considered the most important specie, representing 18.18% of the biomass and 12.32% of the individuals total. Out of 124 species, only 9 were dominant, what contributed to the high diversity indices recorded in all counties but Fortim, because of the high dominance of white grunt (Haemulon plumieri). The Camocim fishing location presented the largest species richness and an outstanding participation in the biomass (59.95%) and the individuals total (50.89%). The smallest similarity index values were observed when Camocim and Paracuru fishing locations were compared to Fortaleza, Caponga and Fortim. Furthermore, a greater evenness was observed between fishing locations of the western coast (Camocim and Paracuru) and those of the eastern coast (Caponga and Fortim), including Fortaleza, which is the cornerstone of Ceará state s coastline. Given the relevance of the artisanal fisheries and the richness of the fish fauna that make up their commercial catches, it is highly desirable for ecological studies to be pursued in relation to such resources, to the effect that knowledge is obtained and directed to a better understanding of that ecosystem and to a sound management of its exploitation.
Influência das condições de alimentação do meio suplementar na produção de ácido clavulânico por Streptomyces clavuligerus em batelada alimentada
(Universidade Federal de São Carlos, 2004-03-25)
Teodoro, Juliana Conceição
;
Badino Júnior, Alberto Colli
The clavulanic acid (CA) is an important inhibitor of β-lactamases, enzymes that clives the β-lactam ring of penicillins and cephalosporins, inativating these compounds. CA is traditionally produced by Streptomyces clavuligerus in batch (B) or feed batch (FB) cultivations. Considering that the products of easily assimilable catabolic carbon source catabolism repress the biosynthesis of secondary metabolite, including CA, production in FB is preferable because control of nutrient level can be performed. In the present work the effect of supplementing medium (composition, concentration of glycerol and feed flow rate) on the production of CA was evaluated in fed batch cultivations in 4L stirred-tank bioreactor. Aeration was set at 0.5 vvm, the agitation rate was controlled at 800 rpm and pH at 6.8. Initially, a batch cultivation was carried out with glycerol (15 g.L-1) and Samprosoy (20 g.L-1), a soy protein hydrolyzate, as carbon and nitrogen sources, respectively. The results obtained from this experimental, concerning CA production, were considered as standart for comparasion with furter experimental results. Also, the observed glycerol consuption rate was used to define the glycerol feed rate infurter experiments. The kinetic model considering non-associated production with CA degradation was fitted to the experimental results and cultivation in FB were simulated under different conditions of volumetric flow rate (F) and glycerol concentration on supplementary medium (Cse). The experimental results showed that the rate of production of CA and glycerol consumption, were directly related, condition not predicted by model, besides, its negative effect on the AC production after the feeding indicate a possible inhibition/repression effect of glycerol. The possible negative effect of glycerol not confirmed by the results of a batch cultivation with pulse of glycerol at 24 hours cultivation, indicating that this effects caused by others compounds in the culture medium or due to dilution of the medium. The subsequent results with different feeding conditions and glycerol concentration utilizing complete supplementary medium, with only glycerol, indicate that CA production is increased in process with high Cse and low volumetric flow rate (F) that guarantee sufficient carbon source and minimize the dilution effects.
Sistemática das espécies de Ceroplastinae Atkinson, 1886 (Hemíptera: Coccoidea: Coccidae) que ocorrem no estado de São Paulo, Brasil e inventariação de seus parasitóides
(Universidade Federal de São Carlos, 2004-03-25)
Peronti, Ana Lúcia Benfatti Gonzalez
;
Silva, Carlos Roberto Sousa e
;
https://lattes.cnpq.br/4890369735136839
The species of Ceroplastinae (Hemiptera: Coccoidea: Coccidae) from São Paulo state were revised and associated parasitoids were inventoried. Forty-three species of the Ceroplastinae were studied, 27 known species were redescribed and 6 new species described. Ceroplastes campinensis Hempel, 1901, C. bicolor Hempel, 1901, C. excaericae Hempel, 1912 and C. farmairii (Signoret, 1866) were not studied because the type material or other specimens were not found. Eight new synonym are established: Ceroplastes psidii (Chavannes, 1848) and C. simplex Hempel, 1900 with C. janeirensis; C. cultus Hempel, 1900, C. cuneatus Hempel, 1900, C. rarus Hempel, 1900 and C. rotundus Hempel, 1900 with C. cirripediformis; C. novaesi Hempel, 1900 with C. lucidus Hempel, 1900 and C. rhizophorae Hempel, 1918 with C. grandis Hempel, 1900. One new combination is proposed. Ceroplastes stellifer (Westwood, 1871). Ceroplastes flosculoides is recorded for the first time in Brazil and Ceroplastes cassiae (Chavannes, 1848), C. deodorensis Hempel, C. formosus Hempel and C. quadratus Green are recorded for the first time in São Paulo state. Ceroplastinae is now formed by 31 species, all included in Ceroplastes genus. In addition, synonym list, geographic distribution, lists of hosts and illustrations have been presented, together with a dichotomous key to the groups of the Ceroplastinae and a dichotomous key to species of the Ceroplastes group and another to species of the Ceroplastidia group from São Paulo state. Thirty-one Hymenoptera parasitoids distributed in 7 families of the Chalcidoidea in association with Ceroplastes species: Coccophagus Westwood sp1., C. sp2, C. sp3 (Aphelinidae); Anicetus sp., Coccidencyrtus sp., Encyrtus baezi (Brèthes, 1921), Metaphycus sp1, M. sp2, M. sp3, M. sp4, M. sp5, M. sp6, M. sp7, M. sp8. and Microterys sp. (Encyrtidae), Aprostocetus sp1., A. sp2 and A. sp3, Horismenus and Tetrastichinae sp. (Eulophidae), Brasema sp., Lecaniobius grandis (De Santis, 1950), L. utilis Compere, 1939 and L. cockerellii Ashmead, 1896 (Eupelmidae), Erotolepsia sp. and Cephaleta brasiliensis (De Santis, 1963) (Pteromalidae) and Signiphora sp1. S. sp2 and S. sp3 (Signiphoridae) were found. Every genus mentioned above, except Coccophagus, is associated with Ceroplastinae for the first time in Brazil. The first occurrence of both the genus Microterys and Encyrtus baezi for Brazil and genus Brasema and Brachymeria pedalis (Cresson, 1872) for the state of São Paulo is here recorded. A CD-ROM, including species of economic importance Ceroplastinae and associated parasitoids, is presented.
A grande seca de 1979 a 1983: um estudo de caso das ações do governo federal em duas sub-regiões do estado do Ceará (Sertão Central e Sertão de Inhamuns)
(Universidade Federal de São Carlos, 2004-03-26)
Campos, Nivalda Aparecida
;
Villa, Marco Antonio
;
https://lattes.cnpq.br/9571225340239118
The subject of this article is the State intervention in two macro regions of the Brazilian state of Ceará: Central Hinterlands and Inhamuns Hinterlands during the hard drought of 1979-1983. The objective was to identify why the effects of the weather phenomenon were so catastrophic even with the governmental programs being developed. During the researches, it was observed that the principles and strategies that orientate the intervention in the semi-arid Northeast region has been conservative and concentrative, beneficiating only certain groups.
Perturbação hidrológica, estabilidade e diversidade de macroinvertebrados em uma zona úmida (lagoas intermitentes) do semi-árido brasileiro
(Universidade Federal de São Carlos, 2004-03-26)
Silva-Filho, Manoel Inácio
;
Gessner, Alaíde Aparecida Fonseca
;
https://lattes.cnpq.br/8465752836529703
;
https://lattes.cnpq.br/5557996426005126
Intermittent shallow lakes are a kind of wetland of great importance in the Brazilian semiarid area, being characterized by hydrological extremes of flood and drought. These shallow lakes are good model for ecological study because they have discrete boundaries, and are subject to disturbance processes such as drying. The goal of this study was to analyse, in according to the conceptual mark of natural disturbances and ecological stability, the diversity and stability of the macroinvertebrates in three Brazilian semi-arid intermittent lakes during two hydrological cycles. In this study, I also compare the diversity of the macroinvertebrate communities to the hydrological disturbance; analyse the degree of resilience and resistance of the community to the drought, as well as, the relationship between diversity and stability in the community studied. Furthermore, I accomplished the inventory of the fauna of macroinvertebrates of 33 intermittent shallow lakes widespread in the Paraibano semi-arid. The results of this study suggest that (i) flooding and drought are the main disturbance agents in these shallow lakes, which are events of great importance to explain the model of macroinvertebrates succession; (ii) in the lakes studied I did not determined the pattern of macroinvertebrate diversities, because a peculiar pattern of diversity seemed to occur in each hydrological cycle; (iii) the species richness was relatively high and the number of individuals small; (iv) the macroinvertebrate populations varied substantially during the hydrological cycle due to variation of the water level and the impacts of the drought; (v) the resistance and resilience of the macroinvertebrate communities to drought demonstrated to be relatively high; and (vi) the variability of the total biomass of macroinvertebrate communities was lower in the lake that exhibited high species richness, while the variability of the abundance of the populations in each species was lower in the lakes with larger species richness of macroinvertebrates.
Estudos de ionização de moléculas poliatômicas de interesse tecnológico
(Universidade Federal de São Carlos, 2004-03-26)
Sanches, Ivana Pereira
;
Iga, Ione
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https://lattes.cnpq.br/8934634344275868
Complex polyatomic compounds are increasingly being used for modern technological applications, e.g., those related to the semiconductor industry, generation of new materials etc. However, there is a big lack of knowledge of the fundamental properties of such relevant chemical species, and more investigations of them are highly desirable. In the above context, we have studied electron impact partial and total ionization cross sections, in the energy range of Emin 1000 eV for molecules like CHF3, C2F6, CF3Cl and C2H4. A time-of-flight mass spectrometer developed at the Laboratório de Espalhamento de Elétrons, at the chemistry department of UFSCar, was used to perform these studies. Absolute scattering cross sections were obtained using the relative flow technique. Also, we have begun studies using the synchrotron radiation in pulsed mode with a view to determine the photoionization cross sections at the Laboratório Nacional de Luz Síncrotron. In this work we have tested the viability of this method to determine the photoionization cross section by studying the gases for which these cross sections are already present in the literature.