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Search Results: 1 - 10 of 2163 matches for " Fabiana;Schwarzbold "
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Respostas da comunidade zooplanct?nica à forma??o do reservatório de Dona Francisca, Rio Grande do Sul, Brasil
Pedrozo, Catarina da Silva;Schneck, Fabiana;Schwarzbold, Albano;Farias, Roberto Nascimento de;
Iheringia. Série Zoologia , 2012, DOI: 10.1590/S0073-47212012000200005
Abstract: we investigated the changes in species richness, density and composition of the zooplankton community in response to the formation of a reservoir in the area of the dona francisca hydroelectric plant. zooplankton samples were collected quarterly over four years, comprising two years before and two years after the formation of the reservoir. species richness and density of cladocera, copepoda and rotifera increased after the filling of the reservoir. further, the zooplankton community showed a clear change in species composition between the periods before and after the formation of the reservoir. the distinct species composition between the two periods was related to changes in limnological characteristics due to the formation of the reservoir.
Composi??o e varia??o sazonal da riqueza do fitoplancton na foz de rios do delta do Jacuí, RS, Brasil
Rodrigues, Silvia Corrêa;Torgan, Lezilda;Schwarzbold, Albano;
Acta Botanica Brasilica , 2007, DOI: 10.1590/S0102-33062007000300017
Abstract: this study describes and compares phytoplankton composition and richness at the mouths of the gravataí, sinos, caí, and jacuí rivers during the four seasons of the year. the investigation was based on bimonthly sampling of subsurface water, from december/2000 to december/2001. the phytoplankton community of the four river mouths was composed by 470 species (including those unidentified), 135 genera, and nine taxonomic classes. chlorophyceae and bacillariophyceae were the most representative classes in species number. high richness was probably associated with the presence of dams and swamps on the upper course of these rivers, and also with the wetlands of the jacuí delta floodplains. temperature and fluviometric level were the main factors determining seasonal composition and richness variation of the phytoplankton community.
Interactions between benthic macroinvertebrates and fishes in a low order stream in Campos de Cima da Serra, RS, Brazil
Winckler-Sosinski, LT.;Silveira, TCL.;Schulz, UH.;Schwarzbold, A.;
Brazilian Journal of Biology , 2008, DOI: 10.1590/S1519-69842008000400003
Abstract: benthic macroinvertebrates constitute the link between organic matter input in streams and fishes. however, the possibility of influence of predators on the invertebrates is still a controversial issue. the possibility of alteration of the benthic community by the modification in predation in a stream in the south of brazil was studied by means of an exclusion experiment under semi-natural conditions. the exclusion showed an increase in the abundance of plecoptera in the river where the rainbow trout was introduced, the larvae of trichoptera also increased in abundance in the units of fish exclusion. this difference does not confirm the pressure applied by the trout on the benthic macro fauna due to differences in ichthyofauna and in the habitat of both rivers. nevertheless, it points to the need for the development of studies concerning the trophic relations and the possible effects of this introduction in the aquatic biota.
Psychiatric disorders and traumatic brain injury
Marcelo Schwarzbold,Alexandre Diaz,Evandro Tostes Martins,Armanda Rufino
Neuropsychiatric Disease and Treatment , 2008,
Abstract: Marcelo Schwarzbold1, Alexandre Diaz1, Evandro Tostes Martins2, Armanda Rufino1, Lúcia Nazareth Amante1,3, Maria Emília Thais1, Jo o Quevedo4, Alexandre Hohl1, Marcelo Neves Linhares1,5,6, Roger Walz1,61Núcleo de Pesquisas em Neurologia Clínica e Experimental (NUPNEC), Departamento de Clínica Médica, Hospital Universitário, UFSC, Florianópolis, SC, Brazil; 2Unidade de Terapia Intensiva, Hospital Governador Celso Ramos, Florianópolis, SC, Brazil; 3Departamento de Enfermagem, UFSC, Florianópolis, SC, Brazil; 4Laboratório de Neurociências, UNESC, Criciúma, SC, Brazil; 5Departamento de Cirurgia, Hospital Universitário, UFSC, Florianópolis, SC, Brazil; 6Centro de Cirurgia de Epilepsia de Santa Catarina (CEPESC), Hospital Governador Celso Ramos, Florianópolis, SC, BrazilAbstract: Psychiatric disorders after traumatic brain injury (TBI) are frequent. Researches in this area are important for the patients’ care and they may provide hints for the comprehension of primary psychiatric disorders. Here we approach epidemiology, diagnosis, associated factors and treatment of the main psychiatric disorders after TBI. Finally, the present situation of the knowledge in this field is discussed.Keywords: psychiatric disorders, traumatic brain injury, neuropsychiatry, diagnostic, epidemiology, pathophysiology
Effects of salinity, temperature and phosphorus concentration on the chemical composition of Gelidium crinale (Turner) Lamouroux (Gelidiaceae, Rhodophyta)
Paulo Nelo Medeiros Perfeto,Albano Schwarzbold,Lúcia Rebello Dillenburg
Biotemas , 2005,
Abstract: The effects of different culture conditions (temperature, salinity and dissolved inorganic phosphorus) were investigated for seven days, under controlled conditions. The maximum production of proteins occurred in cultures where the temperature was 25°C, with concentrations of 5.0 and 10.0 μM of dissolved inorganic phosphorus and salinity between 15 and 20 psu, with values varying from 2.62 to 2.83% of algae dry weight. For carbohydrates, a third-order interaction was not observed in the statistical analysis; only a second order interaction was observed between temperature and inorganic phosphorus concentrations Efeito dos parametros abióticos em cultivo de G. crinale (P < 0.005) and between temperature and salinity (P < 0.000). The greatest phosphorus increase in the thalli (0.80 %) occurred in the lowest temperature (15 °C), associated with low salinity (10 psu) and high inorganic phosphorus concentration (10.0 μM). The Pearson’s correlation coefficient revealed positive correlations (P < 0.001) among protein content, temperature and inorganic phosphorus available in the growth medium. For carbohydrates, correlations were positive with all three abiotic parameters. For tissue phosphorus, a positive correlation occurred only with dissolved inorganic phosphorus; with temperature and salinity, the correlations were negative. Among the chemical components present in the algae, proteins and carbohydrates showed a positive correlation, while tissue phosphorus presented a negative correlation with both, although this correlation was not significant with regard to protein.
National Observatory on Special Education: Network Study about Inclusive Education in Brazil  [PDF]
Mendes Eniceia, Cia Fabiana
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.39009
Abstract:

Considering the importance of collaborative networks of research, a group of Brazilian researchers has created the National Observatory on Special Education (in Portuguese Oneesp), whose focus is on the production of integrated studies about policies and practices directed to the issue of school inclusion in Brazilian reality. The present project has focused on a nationwide study about a government policy to stimulate the creation of support services to students with special educational needs in regular schools, called “Multifunctional Resource Rooms (MRR)”. According to official data, between 2005 and 2011 the Brazilian Ministry of Education had financed 30.000 MRR spread in all Brazilian states. To what extent this type of service has supported the education of children and young with educational special needs? To answer these questions 203 researchers from 16 Brazilian states, representing 22 universities are leading a network study to analyze the municipalities’ implementation of this policy. Studies were conducted involving 58 municipalities for concurrently produce, knowledge and professional development through collaborative research, and were conducted through interviews with focus groups composed of approximately 450 MRR teachers, and then a national study survey in progress, directed to about 500 MRR teachers. The analysis of the results, still preliminary, indicated that the policies of the municipalities, despite following some guidelines from the Ministry of Education, were translated to their reality and assumed quite different local expressions depending in part on local history of the development of services of special education in determined reality.

Androgens, Male Hypogonadism and Traumatic Brain Injury  [PDF]
Alexandre Hohl, Marcelo Fernando Ronsoni, Simone van de Sande-Lee, Fábio Cavalcanti de Faria Vieira, Marcelo Libório Schwarzbold, Alexandre Paim Diaz, Roger Walz
Open Journal of Endocrine and Metabolic Diseases (OJEMD) , 2014, DOI: 10.4236/ojemd.2014.41002
Abstract:

Traumatic brain injury (TBI) is a worldwide public health problem. Populations with a growing number of vehicles are experiencing many traumas and accidents. The highest-risk group is young men. Significant advances in neurosurgery and intensive therapy have resulted in increased survival rates of TBI patients. These higher survival rates, in turn, have led to an increasingly higher number of patients with neurological, cognitive, clinical, and social problems. This lack of knowledge about TBI has been called by some “the silent epidemic”. In recent years, studies of patients with moderate and severe TBI are increasing. Glasgow Coma Scale ≤ 8 and abnormal pupils at admission are used to determine the prognosis of patients with moderate or severe TBI. Several biomarkers such as interleukins, thiobarbituric acid reactive species, and some hormones have been studied in an effort to aid prognosis. Testosterone plays a key role in men. Thus, an understanding of androgens in TBI is

Application of a non-destructive method to determine biomass in Pontederiaceae
Gon?alves, Cátia Viviane;Schwarzbold, Albano;Jasper, André;Vasconcelos, Marlon Castro;
Acta Limnologica Brasiliensia , 2010, DOI: 10.4322/actalb.2011.001
Abstract: aim: the aim of the present study was to estimate eichhornia crassipes biomass by a non-destructive method that uses allometric measurements of foliar structures; methods: aquatic macrophytes collected at different growth in a wetland were allometrically measured as (a) limbo length and width (b) petiole width and diameter. the same leaves were used to determine biomass, expressed in dry weight, after drying in an oven at 70 °c until constant weight; results: the correlation between petiole length/diameter with foliar biomass was r2 = 0.7705; p < 0.001, and between limbo width/length and foliar biomass was r2 = 0,8838; p < 0,001. it was shown that limbo width/length and petiole length/diameter are related to biomass. two estimation models were built to estimate aerial biomass based on allometric and biomass data; conclusion: biomass values obtained with the model proposed in this study are similar to those obtained when the material was dried in the oven, as determined by the t test. the biomass determination model proposed in the present study was shown to be efficient, and allows the follow-up of plant growth in time.
Hypogonadism after traumatic brain injury
Hohl, Alexandre;Mazzuco, Tania Longo;Coral, Marisa Helena César;Schwarzbold, Marcelo;Walz, Roger;
Arquivos Brasileiros de Endocrinologia & Metabologia , 2009, DOI: 10.1590/S0004-27302009000800003
Abstract: traumatic brain injury (tbi) is the most common cause of death and disability in young adults. post-tbi neuroendocrine disorders have been increasingly acknowledged in recent years due to their potential contribution to morbidity and, probably, to mortality after trauma. marked alterations of the hypothalamic-pituitary axis during the post-tbi acute and chronic phases have been reported. prospective and longitudinal studies have shown that some abnormalities are transitory. on the other hand, there is a high frequency (15% to 68%) of pituitary hormone deficiency among tbi survivors in a long term setting. post-tbi hypogonadism is a common finding after cranial trauma, and it is predicted to develop in 16% of the survivors in the long term. post-tbi hypogonadism has been associated with adverse results in the acute and chronic phases after injury. these data reinforce the need for identification of hormonal deficiencies and their proper treatment, in order to optimize patient recovery, improve their life quality, and avoid the negative consequences of non-treated hypogonadism in the long term.
Are error correction models the best alternative to assess capital mobility in developing countries?
Rocha, Fabiana;
Economia Aplicada , 2006, DOI: 10.1590/S1413-80502006000200007
Abstract: jansen (1996) and jansen and schulze (1996), based on a sample of developed countries argue that an error correction model would be the correct specification to estimate saving-investment correlations. the purpose of this paper is to verify if the same claim can be made using a sample of developing countries. regarding developing countries is an error correction model indeed superior, as suggested by jansen and jansen and schulze? how serious is the potential bias from using regressions in levels and in first differences instead of an error correction model? although the theory implies that there is a long-run relationship between saving and investment, this does not seem to be the case for the majority of the developing economies individually. therefore, the equation in differences is not poorly specified. based on this equation it seems to be an intermediate degree of capital mobility in developing countries according to the criterion of feldstein and horioka.
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