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Effects Of Three Instructional Schedules On Skill Acquisition And Generalization In The Use Of Two-way Radios To Report Task Completion by High School Students with Moderate Intellectual DisabilitiesPerez-Turner, Geraldine 01 January 2005 (has links)
Educators of students with moderate and severe intellectual disabilities face a significant challenge in preparing their students while in school to function, acquire, and maintain skills that would facilitate successful performance in the workforce while in supported and/or independent employment after graduation. The field of special education still debates about the best way to teach students with moderate intellectual disabilities, the best setting for their instruction and the best instructional schedule. The current research investigated the effectiveness and efficiency of three instructional schedules in the skill acquisition and generalization of two-way radio usage to report task completion by high school students with moderate intellectual disabilities. The instructional schedules investigated were: (a) community-based instruction only (CBI), (b) community based instruction plus simulated instruction in the classroom-same day (CBISC) and (c) simulated instruction in the classroom only (SICO). A Multiple Probe Design across participants with intermittent probe trials within each instructional group, and an added generalization phase (Horner & Baer, 1978; Tawney & Gast, 1984; Alberto & Troutman, 2003) was employed in this study. Nine high school students with moderate intellectual disabilities, three in each instructional schedule, were taught to use a two-way radio to report task completion. The results of the study revealed that the CBI instructional schedule was the overall most efficient instructional schedule for skill acquisition. Two of the CBI participants required the least number of trials to learn to use a two-way radio to report task completion. The second most efficient schedule was the CBISC and the least efficient instructional schedule was the SICO. Based on Mean scores, learning efficiency appeared to be greater for the participants in the CBI and CBISC instructional schedule. These participants required the least number of intrusive prompts. Results indicated that the SICO instructional scheduled was more efficient for only one participant. This participant only required verbal prompts for acquisition of the skill. However, participant one on the SICO instructional schedule required the most intrusive prompts of all participants across groups. For generalization, the CBISC instructional schedule appeared to be the most effective. In this schedule, the two participants that concluded the study generalized the skill across three novel settings with 100% accuracy. The SICO schedule, also had two participants generalized the skill across three novel settings; however, one participant in that group failed to generalize the skill in two settings. The CBI instructional schedule appeared to be the least effective for skill generalization in this study. In this schedule, only one participant generalized the skill in all three novel settings.
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A PATIENT-CENTERED WORKFLOW AUTOMATION SYSTEM FOR OCCUPATIONAL AND PHYSICAL THERAPYKELLEY, GEORGE 03 July 2007 (has links)
No description available.
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Job-sharing in the South African labour market : its potential, feasibility and impact on unemployment, productivity and quality of work lifeNgambi, Hellicy Chakosamoto 02 1900 (has links)
The primary aim of this survey is to:
* explore whether there is potential for job-sharing in the South African labour market;
*
*
describe the characteristics of potential job-sharers and
to explain why Job-sharing would be an appropriate and feasible solution to unemployment,
massive retrenchments, poor quality ofwork life (QWL) and low worker productivity
Job-sharing has been used in many developed countries to address a variety of problems at the
individual, organisational and national level. These include allowing workers to have a balance
between their work and non-work life; to increase worker productivity and QWL and to increase
employment opportunities.
The literature survey affirms that these problems are prevalent in Africa as a whole and in South Africa
specifically. The survey results reveal that the environment in South is Africa is conducive to jobsharing
and that slightly over one third of the workers and organisations and two thirds of the jobseekers
are willing to job-share. The results of this study also reveals that QWL, productivity and
unemployment does influence the willingness to job-share and that approximately 80% of the
employees would rather either job-share, work-share or opt for some other alternative than to
have retrenchments. Thus by implication, job-sharing would address the problems relating to poor
QWL, low worker productivity, fewer employment opportunities, as well as massive retrenchments
in South Africa. The study has also explored possible reasons and obstacles to job-sharing and found that whether
these are perceived as significantly important or not, depends on whether one is an employer, employee
or job-seeker . The job-seekers feel more than others, that there is no reason insurmountable or
obstacle preventing the introduction of job-sharing by which to avert their unemployed status. There
are also differences in willingness to job-share among subgroups with regard to the industry, area
of work, position held in the organisation and the availability of job-sharing positions in the
organisation. This thesis reports that there is potential for job-sharing in the South African labour
market, to address a variety of problems pertaining to workers, organisations, job-seekers and,
therefore, the whole nation at large. / Business Management / D.B.L.
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Experiences of chronic patients about long waiting time at a community health care centre in the Western CapeTana, Vuyiswa Veronica 03 1900 (has links)
Thesis (MCurr)--Stellenbosch University, 2013. / ENGLISH ABSTRACT: The objectives of this study were to explore patients’ experiences about long waiting time at the Vanguard Community Health Care Centre in the Western Cape and to explore possible solutions for this problem from the patients’ perspective. A qualitative research approach was applied. A sample size of (n=12) was drawn from a total population of 2829 (N=2829) using a non-random convenient sampling technique. A semi-structured interview guide was designed based on the objectives of the study and validated by experts in the field before data collection took place. Approval for the study was obtained from the Ethics Committee at the faculty of Health Sciences, Stellenbosch University and from the facility manager of health centre where the study was to be undertaken.
The presentation of the results was categorised into themes and sub-themes that emerged from the data analysis. According to the findings in chapter 4 the themes that emerged were:
Causes of long waiting time
Areas of concern where waiting occurs most
Emotions experienced when waiting long for service
Possible solutions to waiting long for service
The findings support the conceptual framework developed for the purpose of this study which includes the Patient’s Bill of Rights, the Principles of Batho Pele, Quality Care, Patients’ Representation and Patient satisfaction. The results of the study suggests that the conceptual framework needs to be implemented as a guideline to address the problems of long waiting time with the input from the participants’ opinions about possible solutions to be incorporated to the problem of long waiting time at the community health centre. / AFRIKAANSE OPSOMMING: Die doelwitte van die studie was om pasiente se gevoelens oor lang wagtye by Vanguard Gemeenskapsgesondheidsentrum in die Wes-Kaap te ondersoek en om moontlike oplossings vir hierdie probleem vanaf die pasient se perspektief te bepaal ‘n Kwalitatiewe navorsingsbenadering is gebruik. ‘n Steekproefgrootte van (n=12) is verkry vanaf ‘n totale bevolking van 2829 (N= 2829) deur die gebruik van ‘n nie-ewekansige gerieflike steekproefneming tegniek. ‘n Semi-gestruktureerde onderhoudgids is ontwerp gebaseer op die doelwitte van die studie. Die onderhoudgids is geldig bevind deur spesialiste in die gebied voor data insameling plaasgevind het. Goedkeuring vir die studie is verkry van die Etiese Komitee by die Fakulteit Gesondheidswetenskappe, Stellenbosch Universiteit en van die bestuurder van die gesondheidsentrum waar die studie uitgevoer sou word.
Resultate is rangskik in temas en subtemas wat afgelei is van die data analise. Die volgende temas is bepaal vanuit Hoofstuk 4 se bevindinge:
Redes vir lang wagtye
Areas waar lang wagtye voorkom
Emosies ondervind wanneer lank gewag moet word vir diens
Moontlike oplossings vir lang wagtye
Die bevindinge ondersteun die konseptuele raamwerk ontwikkel vir die doel van die studie wat die Handves van Regte vir pasiente, die beginsels van Batho Pele, Kwaliteitsorg, Pasient verteenwoordiging en Pasienttevredenheid insluit. Die bevindinge van die studie dui aan dat die konseptuele raamwerk geimplementeer moet word as riglyn om die probleme wat ervaar word met lang wagtye aan te spreek. Die deelnemers se menings oor moontlike oplossings moet deel moet wees van die aanspreek van die probleem van lang wagtye in die gemeenskapsgesondheidsentrum.
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The effect of acquisition reform on small business participation in the Federal marketplaceCheifetz, Aaron A. 03 1900 (has links)
Approved for public release, distribution is unlimited / This thesis investigates the effect that acquisition reform has had on small business participation in the Federal contracting arena. As a result of the transformation of the Federal acquisition process through acquisition reform legislation and the reduction in the acquisition workforce, small business contractors are faced with new challenges to compete for and win Federal contracts. This paper concentrates on examining contract bundling, reverse auctions, electronic commerce and multiple award schedules. It concludes that contract bundling has had a negative effect on small businesses by excluding them from many competitions. It also finds that electronic commerce has had a positive effect on small businesses by giving them greater access to Federal contract opportunities and by speeding up the acquisition process. Regarding multiple award schedules, the research supports benefits for small businesses when they are given the chance to compete through multiple award schedules. It also finds negative implications for small businesses in that multiple award schedules often favor large established businesses at the expense of small businesses. The paper finds a lack of awareness on the part of small business concerning reverse auctions and finds no major impact on small businesses resulting from reverse auctions. / Civilian, Department of the Army PEO-EIS
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Etude exploratoire de la discrimination par les quantités de réponses itérées chez l'humain / Exploratory study of discrimination by the quantities of iterated responses in humansMekkass, Francis 09 December 2016 (has links)
Cette thèse se propose d’étudier la discrimination des comportements par les quantités de réponses itérées. Ce champ de recherche s’inscrit dans celui, plus large, de la discrimination des comportements par les quantités. Nous avons tout d’abord cherché à explorer la façon dont les comportements peuvent être discriminés par des quantités différentes d’itérations de réponses et de quelle façon l’installation ou non de cette discrimination peut être mise en correspondance avec une évolution de l’entropie du débit des réponses itérées. Ensuite, nous avons exploré la dynamique des réponses itérées en fonction de la quantité des itérations requises. Après cela, nous avons cherché à savoir s’il était possible de mettre en correspondance l’existence de dynamiques de réponses propres à des quantités avec l’installation ou non d’une discrimination des comportements par des couples différents composés de ces mêmes quantités. Enfin, en vue d’explorer en quoi l’installation d’’une dynamique des réponses permettait l’installation d’une discrimination des comportements, nous avons perturbé, en modifiant la topographie des réponses requises, l’installation de cette dynamique de réponses, et en avons mesuré les effets sur l’installation de la discrimination de comportements par ces quantités de réponses itérées. Les résultats montrent que l’évolution de l’entropie des débits de réponses itérées est orientée en fonction de l’installation ou non d’une discrimination des comportements par des quantités différentes d’itérations de réponses requises : l’entropie diminue lorsque la discrimination par des quantités de réponses itérées est installée, et augmente dans le cas contraire. Ce résultat n’est vrai que pour les participants ayant atteint au moins une fois le critère de décision que nous nous étions fixé pour juger de l’installation de la discrimination. L’analyse de la dynamique des réponses itérées en fonction de chaque quantité d’itérations requise montre qu’il existe presque systématiquement une dynamique propre à chaque quantité d’itérations de réponses requise, pour tous les participants, cette dynamique de réponses étant également propre à la topographie de la réponse requise. La perturbation de l’installation de la dynamique des réponses a, en outre, un effet sur l’installation de la discrimination des comportements par les quantités d’itérations de réponses. Au regard de ces résultats, nous pouvons conclure qu’il existe une correspondance entre l’installation ou non de la discrimination par des quantités de réponses itérées et l’évolution de l’entropie des débits de ces réponses itérées. Néanmoins, tandis que nous pouvons conclure à la pertinence d’analyser la dynamique des réponses itérées pour en étudier la complexité, la mise en correspondance entre celle-ci et la façon dont chaque quantité d’itérations de réponses prend ou non le contrôle de comportements spécifiques n’est pas possible à ce stade, bien que des pistes vers de futures études aient été proposées, pour explorer plus avant cette relation / This dissertation focuses on discrimination of behaviors by iterated responses, which falls in the scope of field of discrimination by quantities. First, we investigate how discrimination by several couples of iterated responses quantities could be related with the evolution of instantaneous rates of iterated responses entropy. Then, iterated responses dynamic was analyzed for several iterated responses quantities, and response topographies. The third experiment investigates the correspondence between specific dynamics of responses exhibited in fixed-ratio schedules and discrimination by couples of quantities of iterated responses. At last, effects of the disruption of the installation of the dynamic of responses on discrimination by these quantities of iterated responses have been measured. Results show that discrimination by quantities of iterated responses is possible, and that specific dynamics of responses match specific quantities of iterated responses. Although correspondence between such dynamics and discrimination have not been demonstrated, effects of disruption of dynamic of responses installation have been observed suggesting that a link between dynamic of responses and discrimination exists.
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Avaliação de diferentes cronogramas de coletas de amostras biológicas em estudos de bioequivalência e análise da influência de teor de fármaco sobre os resultados destes estudos / Evaluation of the effects on different doses and sampling schedules on the assessment of bioequivalenceKano, Eunice Kazue 25 March 2008 (has links)
Os estudos de bioequivalência são realizados em humanos, por meio da administração dos medicamentos em estudo pela mesma via extravascular, sob condições experimentais padronizadas, seguida pela determinação das concentrações plasmáticas do fármaco em função do tempo. Nestes estudos considera-se que curvas estatisticamente semelhantes de decaimento sanguíneo de fármacos produzem o mesmo resultado em termos de eficácia e segurança. A partir das curvas de concentração em função do tempo obtidas, determinam-se os parâmetros farmacocinéticos Cmax, tmax e ASC. A bioequivalência entre dois produtos é estabelecida por meio do IC 90%, que deve estar entre 80 a 125% para os parâmetros farmacocinéticos Cmax e ASC. O cronograma de coleta de amostras biológicas é um dos aspectos mais críticos no planejamento de estudos de bioequivalência, pois este afeta diretamente a determinação dos parâmetros farmacocinéticos utilizados na avaliação da bioequivalência. Outro aspecto importante relacionado a este tipo de estudo é a diferença de teor entre os produtos a serem submetidos ao estudo de bioequivalência, que segundo a legislação brasileira vigente, deve ser menor ou igual a 5%. Neste trabalho foram avaliados diferentes cronogramas de coleta de amostras sangue, avaliando-se o impacto destes no resultado final de um estudo de bioequivalência e, além disso, a influência da diferença de teor de fármaco entre dois produtos que levaria à bioinequivalência também foi investigada. Para tanto simulações matemáticas e um estudo in vivo foram conduzidos. O fármaco modelo escolhido foi a cefadroxila, por apresentar características farmacocinéticas e farmacodinâmicas ideais. O programa Microsoft Office Excel 2003 foi utilizado para simular as concentrações plasmáticas e determinar o IC 90%. As simulações foram feitas por meio de dois modelos: modelo baseado em máximos e mínimos de parâmetros farmacocinéticos, e modelo baseado em coeficientes de variação intra e inter-individuais do fármaco. Dez diferentes doses, entre -10% a 20% da dose referência, e 6 cronogramas de coleta foram avaliados. O estudo in vivo foi realizado com quatro doses diferentes de cefadroxila. A bioequivalência entre as doses e em diferentes cronogramas de coleta foi avaliada em 24 voluntários sadios do sexo masculino. Os voluntários receberam as quatro doses do estudo em desenho cruzado, em quatro períodos e quatro seqüências, com washout de 7 dias entre as doses. As concentrações plasmáticas de cefadroxila, até 8 horas após a administração, foram determinadas por cromatografia líquida de alta eficiência com detecção DAD. Os parâmetros farmacocinéticos tmax, Cmax e AUC0-t foram determinados nas diferentes doses e cronogramas de coleta, sendo que o critério para estabelecer-se a bioequivalência foi baseada nos resultados do IC 90% dos parâmetros farmacocinéticos Cmax e AUC0-t. Os resultados obtidos nas simulações mostraram boa correlação com os dados reais obtidos a partir de estudos in vivo. As simulações baseadas em coeficientes de variação intra e inter-individuais descreveram melhor os resultados observados no estudo in vivo. De acordo com os resultados obtidos no estudo in vivo pode-se concluir que cronogramas de coletas com menos amostras são tão eficientes quanto cronogramas de coletas com mais amostras, desde que o tempo de tmax esteja incluído. Em relação ao teor de fármaco, concluiu-se que dois produtos com diferença de teor menor ou igual a 11% ainda são bioequivalentes e que diferença maior ou igual a 14% resultam em bioinequivalência. Observou-se ainda que o parâmetro farmacocinético ASC0-t é mais sensível que Cmax para detectar diferenças. / Bioequivalence studies are designed to compare the in vivo performance of different formulations of the same drug or different drug products by a randomized crossover study. Pharmacokinetic parameters are obtained from the drug concentration-time profile in blood, serum, or plasma. The most frequently used pharmacokinetic parameters are area under the plasma or blood concentration-time curve (AUC), maximum concentration (Cmax) and time to achieve maximum concentration (tmax). Bioequivalence is concluded if the average bioavailability of the test formulation is within (80%, 125%) that of the reference formulation, with a certain assurance, that is, an equivalence criterion of 80% to 125% for assessment of bioequivalence based on the ratio of average bioavailability is employed. The logarithmic transformation is used for AUC and Cmax. Accuracy in measuring pharmacokinetics parameters directly affects accuracy of bioequivalence tests. Since the number of blood samples per patient is limited, sampling points should be chosen such that the time concentration profile is adequately defined so as to allow the calculation of relevant parameters. According to guidelines proposed by the National Agency of Sanitary Vigilance of Brazil (ANVISA), bioequivalence studies can be conducted only if the difference in drug content between the reference and test product is less than or equal to 5%. The goals of this study are to evaluate the influence of differences in amount of active moiety present in the formulation and possibility of reducing the number of sampling points in bioequivalence studies and to discuss the impact of these parameters in bioequivalence conclusions. For these approaches, simulations and an in vivo study were done. The drug selected was cefadroxil. Cefadroxil presents ideal pharmacokinetics and pharmacodynamics characteristics for this kind of study, such as high bioavailability, low intra and intersubject variability, short elimination rate and wide therapeutic range. Microsoft Office Excel 2003 software was used to simulate drug concentration-time profiles for different doses and several sampling schedules, and to determine 90% confidence interval. Simulations were done by two models: a) based on assumed maximum and minimum pharmacokinetic parameters values; b) based on assumed intra and intersubject variability. Ten different doses, ranging from -10% to 20% of the reference dose, and six sampling schedules were evaluated. The in vivo study was performed with four different cefadroxil doses. Their relative bioavailability were evaluated in 24 healthy volunteers who received a single oral dose of each preparation. An open, randomized clinical trial designed as four-periods and four sequences crossover with 7-days washout between doses was employed. Plasma samples for assessments of their cefadroxil concentration by HPLC-DAD were obtained over 8 h after administration. Pharmacokinetics parameters tmax, Cmax and AUC0-t were evaluated using different doses and sampling schedules. For the purpose of bioequivalence analysis Cmax and AUC0-t were considered. For each schedule, to claim bioequivalence in average bioavailability, a 90% confidence interval was constructed for ratio of average between test and reference products and compared with (80%, 125%) limits. If the constructed confidence interval falls within the limits, then the two formulations are considered bioequivalent. The results obtained by simulate time-concentration profiles, showed good correlation with real data. Comparing the results obtained through in vivo study and the two simulations models, the simulations based in intra and intersubject variability was more predictive. In conclusion, no significant differences were found between sampling schedules evaluated, since the sampling time around tmax were maintained in sampling schedules. Bioinequivalence was observed when the difference between cefadroxil doses was higher than 14%. The parameter AUC0-t was more sensitive than Cmax to detect differences.
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Efeitos da Acurácia e da História de Conseqüenciação do Seguimento de Regras e do Desempenho na Contingência ColateralHenriques, Marcelo Borges 17 September 2007 (has links)
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Previous issue date: 2007-09-17 / There is a controversy about the possibility to manipulate both contingencies in rulefollowing
episodes: contingency for following the rule, and collateral contingency,
as described by Cerutti (1989). The present study aimed to present ways to
separately contingency those different aspects found in rule-following episodes.
Experiment 1 had six participants, separated in two groups. Two collateral
contingencies were in effect: either DRL 2 sec, or DRH (2) 2 sec., associated with a
unique stimulus. Otherwise, rules presented varied in accuracy (100% or 50%, and
0% in test phases). Points with differing magnitudes were assigned to rule-following,
and to performance in collateral contingency, separately (5/5; 1/9; 7/3; 3/7, and 9/1).
Experiment 2 had eight participants, and the initial instruction specified the interval
related to rules or contingencies. The data revealed a delicate relationship in
establishing rule-following patterns, showing that both consequences and specific
histories are variables to which this behavior is a function. It can be concluded that
behavioral insensibility observed in a molar analysis may reflect certain patterns of
behavioral sensibility in a molecular analysis. / É controversa a possibilidade de se manipular concomitantemente as contingências
em operação nos episódios de seguimento de regras: contingência do seguimento e
contingência colateral, como descrito por Cerutti (1989). O presente estudo teve por
objetivo apresentar uma metodologia que possibilite contingenciar separadamente
estes diferentes aspectos encontrados em um episódio de seguimento de regras. O
Experimento I utilizou seis participantes divididos em dois grupos experimentais e
executaram uma tarefa em interação com um computador. A contingência colateral
operava sob um de dois esquemas: DRL2 segundos e DRH(2) 2 segundos, cada qual
associado a um único estímulo antecedente não-verbal, mas regras eram fornecidas
alternado-se sua acurácia entre os grupos (100% ou 50% e, em fase de teste, 0%).
Pontos com diferentes magnitudes eram fornecidos para o seguimento e para o
desempenho na contingência colateral separadamente (5/5; 1/9; 7/3; 3/7 e 9/1). O
Experimento II utilizou oito participantes e a apresentação da instrução inicial
especificou o padrão de respostas de cada esquema ou regra. Os dados revelaram
uma delicada interação no estabelecimento do seguimento de regras demonstrando
que a conseqüenciação disponível a ambas as contingências supracitadas e histórias
específicas são variáveis das quais o seguimento é função. Conclui-se que
insensibilidade observada em um nível molar pode representar uma sensibilidade
quando os dados são analisados em um nível mais molecular.
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Construção e avaliação de equipamento de baixo custo para análise experimental do comportamento de sujeitos não-humanos / Manufacturing and evaluation of low cost apparatus for non-human research in experimental analysis of behavior.Rossger, Nicolas Carsten 09 April 2015 (has links)
Equipamentos utilizados em pesquisas em Análise Experimental do Comportamento com sujeitos não humanos tiveram uma trajetória intrincada ao próprio estudo do comportamento. Um tipo de equipamento importante nessas pesquisas é a câmara de condicionamento operante. Diversos incrementos foram feitos nessas câmaras, com estes focados no aumento do controle de variáveis independentes e no registro mais preciso de variáveis dependentes. Uma característica de equipamentos atualmente disponíveis no mercado é o seu alto custo de aquisição e a necessidade do uso de software fechado utilizado pelos mesmos. Diante disso, apresenta-se a construção e avaliação de equipamentos não comerciais de baixo custo para pesquisas operantes. Foram construídas duas câmaras de condicionamento, uma para pombos e outra para ratos. Com o objetivo de avaliar o equipamento construído, submeteram-se dois pombos e dois ratos a esquemas de reforço de razão fixa (FR) e razão variável (VR), e dois pombos e dois ratos a esquemas de reforço de intervalo fixo (FI) e intervalo variável (VI). Replicou-se a maior parte dos aspectos da literatura de esquemas de reforço simples com o equipamento apresentado, o que indica sua adequação ao uso em pesquisas de condicionamento operante como uma alternativa viável de baixo custo / Apparatuses used non-human research in experimental analysis of behavior have had a parallel trajectory to the study of behavior itself. A type of apparatus used in behavioral studies is the operant conditioning chamber. Several improvements have been done to these chambers, focusing in the control of independent variables and more precise registry of dependent variables. A feature of apparatuses available in the market is their high acquisition costs and the need of usage of closed software. In light of this, it is shown the construction and evaluation of alternative low cost apparatuses for behavioral research. Two operant conditioning chambers were built, one for usage with pigeons and the other for the usage with rats. In order to evaluate the apparatus, two pigeons and two rats were submitted to fixed ratio (FR) and variable ratio (VR) schedules of reinforcement, while another two pigeons and two rats were submitted to fixed interval (FI) and variable interval (VI) schedules of reinforcement. The majority of features related to the responding under simple schedules of reinforcement were replicated using the presented apparatus, which indicates its adequacy for the usage in behavioral research as a low cost alternative
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Caracterização tecnológica da madeira das espécies de maior frequência no segundo ciclo de corte na Floresta Nacional do Tapajós / Lumber technological characteristics of the more frequent species at second exploration cycle in the Tapajós National ForestCardoso, Cláudia da Costa 28 January 2015 (has links)
Ensaios pioneiros sobre o manejo de florestas tropicais, no final da década de 70, foram executados na Floresta Nacional (FLONA) do Tapajós; e atualmente surge a oportunidade de se iniciar os estudos relativos ao segundo ciclo de corte. Nisto, áreas experimentais em que a exploração inicial foi intensiva apresentam mudanças na cobertura vegetal, com abundância de espécies menos conhecidas ou não comerciais, sendo então necessário analisar tecnologicamente a madeira dessas espécies com o intuito de inseri-las no mercado. Visando colaborar nesse sentido, o presente trabalho teve como objetivo principal caracterizar tecnologicamente e elaborar programas de secagem para as madeiras de Acariquarana (Rinorea guianensis), Breu (Protium apiculatum) e Urucu da mata (Bixa arborea); espécies com alta densidade populacional na área do segundo ciclo de corte na FLONA Tapajós. Para tal, abateu-se cinco árvores de cada espécie, sendo coletado material tanto para a identificação botânica como para a caracterização anatômica, ensaios físico-mecânicos e elaboração dos programas de secagem, além destes foram realizados testes estatísticos de correlação canônica para identificar as associações entre as características estudadas. Com base nos resultados, a madeira das espécies Rinorea guianensis e Protium apiculatum apresentaram características anatômicas semelhantes às encontradas em literatura ao nível de gênero e, Bixa arborea para o nível de espécie. Em relação às principais propriedades físico-mecânicas, as madeiras de Acariquarana, Breu e Urucu possuem densidade básica de, respectivamente, 0,78; 0,51 e 0,27 g/cm³; e com Módulo de Ruptura (MOR) na flexão estática de 147,98; 79,10 e 34,06 Mpa, na mesma ordem. Em comparação com espécies já comercializadas, a espécie Rinorea guianensis (Acariquarana) pode ser indicada para construção civil, móveis, ferramentas, além de torneados e chapas; a espécie Protium apiculatum (Breu) pode ser usada na construção civil, embalagens, caixas, venezianas, para decoração, móveis e compensados e, Bixa arborea (Urucu da mata) pode ser indicada para molduras, palito de fósforo, compensados, laminados, divisórias internas, engradados, brinquedos, aeromodelismo, além de produção de papel. Foi possível a indicação de programas de secagem específicos para as madeiras de cada uma das espécies estudadas, os quais se mostraram coerentes com as indicações encontradas em literatura para espécies já comercializadas e com características semelhantes às das espécies em estudo. Com relação à analise das correlações canônicas ao nível de 1% de probabilidade entre as propriedades das madeiras observa-se que madeiras de maior frequência e espessura do raio e parede celular de menor espessura estão associadas a madeiras de alta contração tanto tangencial como radial, e baixa densidade básica; madeiras de maior frequência e espessura do raio e com paredes menos espessas estão associadas a madeiras de elevado módulo de ruptura no ensaio de flexão estática e menor módulo de ruptura no ensaio de compressão paralela; madeiras com paredes mais espessas e menor espessura dos raios estão associadas a madeiras de maior módulo de ruptura no ensaio de compressão paralela e menor módulo de ruptura no ensaio de flexão estática; madeiras com raios mais espessos e parede menos espessa estão associados a madeiras de baixo nível de colapso e elevado nível de rachadura. / Pioneering trials on management of tropical forests, in the 70s, were executed in the Tapajós National Forest (FLONA); and presently appears the opportunity to begin the studies for the second cutting cycle. However, experimental areas where initial exploration was intensive present changes in the forest composition, with abundance of lesser-known or non commercial species; being necessary technological analysis of these species lumber to insert it in the market. In order to contribute in this direction, the present work aimed the technological characterization and the development of drying programs for woods of Acariquarana (Rinorea guianensis), Breu (Protium apiculatum) and Urucu da mata (Bixa arborea); species with high population density in areas of second cutting cycle in the Tapajós National Forest. For this, the material was collected for botanical identification and for anatomical characterization, physical and mechanical testing and development of drying programs. The wood of Acariquarana presents some distinct growth rings, straight grain, very large vessels, solitary to multiple, intervascular switches pit, garnished, long fibers with thick cell wall, not septate; Axial parenchyma scanty paratracheal, heterogeneous rays, multiseriate, numerous and the presence of parenchymatical crystals. The wood of Breu has distinct growth rings, crossed grain, big vessels, solitary to multiple, diffuse porosity, intervascular switches pit, garnished, medium-wall fibers, septate, paratracheal vasicentric axial parenchyma, heterogeneous rays, multiseriate, numerous. Wood of Urucu da mata presents distinct growth rings, straight grain, big vessels, diffuse porosity, intervascular switches pit, garnished, thin-walled fibers, septate, axial parenchyma diffuse apotracheal, storied rays, heterogeneous, multiseriates and numerous. Regarding the main physical and mechanical properties the wood of Acariquarana, Breu and Urucu have basic density of, respectively, 0,78; 0,51 and 0,27 g/cm³; and with Module of Rupture (MOR) in static bending of 147,98; 79,10 and 34,06 MPa, in the same order. Compared to species already marketed, Rinorea guianensis (Acariquarana) may be indicated for construction, furniture, tools, turned and plates; Protium apiculatum (Breu) may be used in construction, packages, boxes, blinds, decorating parts, furniture and plywood, and Bixa arborea (Urucu da mata) may be indicated for frames, safety match, plywood, laminates, crates, toys, model airplanes, as well to paper production. It was possible to indicate specific kiln schedules for each one of the studied species lumber, which demonstrated consistent with the information found in literature for species already on the market and with similar characteristics to the studied species.
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