Relação entre percepção e ação durante os movimentos de sentar e levantar em indivíduos idosos

The purpose of this study was to analyze aging effects on the perceptual and motor aspects involved in the sit-to-stand and stand-to-sit actions. Young and older individuals were videotaped while performing those actions on a chair adjusted with seven seat heights. Participants estimated, for each seat height, the difficulty/facility perceived while performing the sit-to-stand and stand-to-sit actions. Older individuals exhibited changes in the control strategy used for sitting at the lowest seat height, and overestimated the degree of difficulty/facility involved in performing both actions. In general, the degree of easiness perceived by older individuals at the lowest seat height disagrees with the degree of difficulty exhibited during the motor performance of this task.

Ensaio comparativo de cultivares de soja em época convencional em Selvíria, MS: características agronômicas e produtividade

The performance evaluation it's an important procedure for recommendation of a cultivar to an specific region, because the better adapted will present superior development and bigger level of productivity. The work aimed evaluates the behavior of soybean cultivars IAC 15-1, IAC 18, IAC 20, BRS 133, FT-2000, KI-S 602 RCH, MT/BRS-55 (Uirapuru), MT/BR-45 (Paiaguas), MT/BRS-51 (Xingu), KI-S 801, MSOY 7701, MT/BR-49 (Pioneer), Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) 65 (Itapoty), Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) 64 (Ponta Pora), Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) 61, IAC 8-2, IAC 19, Crystalline FT RCH, KI-S 702, IAC Foscarin 31, IAC-PL1 and MT/BRS-46 (Conquista), related to agronomical characteristics of plants (cycle, height, height of first beans insertion and stand) and productivity of grains, when sowed in conventional time. The experimental design was randomized blocks with four replicates, and the averages compared with Tukey Test (5%). It is viable soybean production at Selviria, MS, because practically all cultivars evaluated are adapted to the soil and climate conditions of that area. To cultivar KI-S 801, the use of smaller stand to the observed in that work it can avoid lodging. Caution should be had to use cultivar MT/BRS-55 (Uirapuru).

Família e creche: crenças a respeito de temperamento e desempenho de bebês

Este estudo baseia-se na Abordagem Bioecológica de Bronfenbrenner. O objetivo foi verificar o julgamento de mães e educadoras de berçário sobre os fatores que causam ou influenciam o temperamento e o desempenho de bebês. Foram entrevistadas 50 mães que tinham filho de 4 a 24 meses em uma creche vinculada a um HC e 21 de suas educadoras (responsáveis por 90 bebês, nas fixas etárias mencionadas). As questões feitas às mães incluíam falar da rotina diária do filho, quais as competências dele e como interpretavam seu temperamento e desempenho. Para as educadoras, os temas foram os mesmos, pedindo-se para descreverem como viam cada um dos bebês sob sua responsabilidade. Os resultados mostram pouca diferença nas crenças das mães e das educadoras, sendo que a maioria apresenta crenças ambientalistas, tanto no que diz respeito ao temperamento quanto ao desempenho do bebê; e as pessoas que mais exerceriam influência seriam os pais.

Millet seeds mixed with phosphate fertilizers

O tamanho reduzido das sementes de milheto dificulta sua semeadura uniforme, principalmente para os produtores que não possuem semeadoras apropriadas. Assim, a mistura das sementes com os fertilizantes fosfatados vem sendo utilizada para facilitar a semeadura. Entretanto, o período de contato pode provocar prejuízos na germinação e no vigor. Avaliou-se a qualidade fisiológica das sementes de milheto submetidas a diferentes períodos de contato (0, 6, 12, 24, 48, 72, 96 e 120h) com os fertilizantes superfosfato simples (SFS) e superfosfato triplo (SFT), em um experimento em delineamento inteiramente casualizado em esquema fatorial 8x2 (n=4). Os atributos químicos e físicos dos fertilizantes foram previamente determinados. Foi utilizada a proporção de 1 kg de sementes para 2,5 kg de fertilizante. Após manutenção da mistura em saco plástico no laboratório, as sementes foram separadas dos fertilizantes e submetidas à determinação de umidade, germinação, primeira contagem e condutividade elétrica. Paralelamente, na casa de vegetação, em caixas plásticas contendo terra, determinou-se a emergência e o índice de velocidade de emergência, sem e com a manutenção dos fertilizantes. Porque apresentam resíduos ácidos, tanto SFS como SFT afetaram de maneira semelhante e negativamente a germinação e o vigor das sementes de milheto em mistura, na medida em que se aumentou o período de contato.

Irregular satellites of Jupiter: Three-dimensional study of binary-asteroid captures

Among the hidden pieces of the giant puzzle, which is our Solar system, the origins of irregularsatellites of the giant planets stand to be explained, while the origins of regular satellites arewell explained by the in situ formation model through matter accretion. Once they are notlocally formed, the most acceptable theory predicts that they had been formed elsewhere andbecame captured later, most likely during the last stage of planet formation. However, underthe restricted three-body problem theory, captures are temporary and there is still no assistedcapture mechanism which is well established. In a previous work, we showed that the capturemechanism of a binary asteroid under the co-planar four-body scenario yielded permanentcaptured objects with an orbital shape which is very similar to those of the actual progradeirregular Jovian satellites. By extending our previous study to a 3D case, here we demonstratethat the capture mechanism of a binary asteroid can produce permanent captures of objects byitself which have very similar orbits to irregular Jovian satellites. Some of the captured objectswithout aid of gas drag or other mechanisms present a triplet: semi-major axis, eccentricityand inclination, which is comparable to the already known irregular Jovian objects. © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.

Análise de decisão sobre o aproveitamento do palhiço da cana-de-açúcar, posto na unidade industrial, para fins de cogeração

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

A coisa e o olho: uma abordagem da direção de atores no teatro de Samuel Beckett

Pós-graduação em Artes - IA

Gestão interdisciplinar em serviços de informação

This study presents different approaches to interdisciplinary management-related concepts. It is still a new area that lacks sufficient theoretical basis for library science and information science. The purpose herein is to ponder and raise the awareness about the transposition and applicability possibilities of the theoretical principles that involve this type of management behavior within Brazilian libraries and information services. It has an outstanding influence as a differential for organizations that adopt a strategic stand to overcome challenges and demands posed by contemporary society.

Association of student position in classroom and school performance

We analyzed whether the position of students in classroom is correlated with academic performance, and which factors might be involved. The sample consisted of 16 classrooms in a school year bimester, each one with around 30 students. Each student's position was registered in classroom maps and the reasons for the students' seat choice were gathered by a questionnaire. School performance and classroom absences of each student were collected directly from the teachers' register notebook. We found that better performances of students at school correlate with lower percentages of absence and choices of seating positions closer to the board. Moreover, the main reason to sit in a front position was motivation for learning. We suggest that school performance is associated to students’ position in the classroom because both are affected by the student motivation for learning. As a consequence, changing students' position in the classroom without increasing their motivation is not likely to improve school performance.

Does proprioceptive system stimulation improve sit-to-walk performance in healthy young adults?

[Purpose] Sit-to-walk performance is linked to proper proprioceptive information processing. Therefore, it is believed that an increase of proprioceptive inflow (using muscle vibration) might improve sit-to-walk performance. However, before testing muscle vibration effects on a frail population, assessment of its effects on healthy young people is necessary. Thus, the aim of this study was to investigate the effects of muscle vibration on sit-to-walk performance in healthy young adults. [Subjects and Methods] Fifteen young adults performed the sit-to-walk task under three conditions: without vibration, with vibration applied before movement onset, and with vibration applied during the movement. Vibration was applied bilaterally for 30 s to the tibialis anterior, rectus femoris, and upper trapezius muscles bellies. The vibration parameters were as follows: 120 Hz and 1.2 mm. Kinematics and kinetic data were assessed using a 3D motion capture system and two force plates. The coordinates of reflective markers were used to define the center-of-mass velocities and displacements. In addition, the first step spatiotemporal variables were assessed. [Results] No vibration effect was observed on any dependent variables. [Conclusion] The results show that stimulation of the proprioceptive system with local muscle vibration does not improve sit-towalk performance in healthy young adults.

Physiological and morphological responses to feeding in broad-nosed caiman (Caiman latirostris)

Broad nosed caiman are ectotherm sauropsids that naturally experience long fasting intervals. We have studied the postprandial responses by measuring oxygen consumption using respirometry, the size changes of the duodenum, the distal small intestine, and the liver, using repeated non-invasive ultrasonography, and by investigating structural changes on the level of tissues and cells by using light- and electron microscopy. The caimans showed the same rapid and reversible changes of organ size and identical histological features, down to the ultrastructure level, as previously described for other ectothermic sauropsids. We found a configuration change of the mucosa epithelium from pseudostratified during fasting to single layered during digestion, in association with hypertrophy of enterocytes by loading them with lipid droplets. Similar patterns were also found for the hepatocytes of the liver. By placing the results of our study in comparative relationship and by utilizing the phylogenetic bracket of crocodiles, birds and squamates, we suggest that the observed features are plesiomorphic characters of sauropsids. By extending the comparison to anurans, we suggest that morphological and physiological adjustments to feeding and fasting described here may have been a character of early tetrapods. In conclusion, we suggest that the ability to tolerate long fasting intervals and then swallow a single large meal as described for many sit-an-wait foraging sauropsids is a functional feature that was already present in ancestral tetrapods.

Corn (Zea mays L.) cultivars tolerance to nicosulfuron

The effects of nicosulfuron on morphological, yield and growth characteristics and the histological modifications in the leaf blade were evaluated for eight corn cultivars: landrace popcorn, ESALQ-popcorn, Piranao, DSCC-Architecture, ESALQ VF7, ESALQ VD8, JAB 01F and JAB 02D. The experimental de sign was a randomized complete block with three replications in a factorial arrangement. Plots were four rows wide and 6.00m long with 0.90m spacing between rows and 0.20m between plants. Nicosulfuron was applied at the dose of 160 g a.i.ha(-1), when the plants was 25 cm high and has 5-6 expanded leaves. Nicosulfuron significantly reduced plant height at silking and the Final plant stand. There was also a significant reduction for plant height at 47 clays after sowing, for number of leaves, ear position. ear height, grain yield, ear weight and total number of ears due to nicosulfuron. The cultivars JAB 01 and JAB 02 were the least affected by the herbicide with similar yields to those of the control group, showing good tolerance to nicosulfuron. The leaves injury symptoms for all the studied cultivars consisted of chlorosis and puckering of the blades from the expanding central leaves of the plant at 7 days after application. Anatomical alterations in the epidermis due to the herbicide consisted of an increase in number and size of the bulliform cells and in the suppression of the epidermal cells in the epidermis and in the nearby of the vascular bundles. Some parenchymatic cells became voluminous and devoid of chloroplasts. SEM examination revealed a loss of bilateral symmetry of the stomata and disappearance of the subsidiary cells from the stomata near the midrib at the adaxial surface.

Biomass and Stand Characteristics of a Highly Productive Mixed Douglas-Fir and Western Hemlock Plantation in Coastal Washington

Aboveground biomass predictive equations were developed for a highly productive 47-year-old mixed Douglas-fir and western hemlock stand in southwest Washington State to characterize the preharvest stand attributes for the Fall River Long-Term Site Productivity Study. The equations were developed using detailed biomass data taken from 31 Douglas-fir and 11 western hemlock trees within the original stand. The stand had an average of 615 live trees per hectare, with an average dbh of 35.6 cm (39.1 cm for Douglas-fir and 33.3 cm for western hemlock) and an average total tree height of 31.6 m (32.8 m for Douglas-fir and 30.2 m for western hemlock). Equations developed were of the form In Y = b(1) + b(2) In dbh, where Y = biomass in kg, dbh = diameter in cm at 1.3 m height, b(1) = intercept, and b(2) = slope of equation. Each tree part was estimated separately and also combined into total aboveground biomass. The total aboveground biomass estimation equations were In Y = -0.9950 + 2.0765 In dbh for Douglas-fir, and In Y = -1.6612 + 2.2321 In dbh for western hemlock. The estimate of the aboveground live-free biomass was of 395 Mg ha(-1) (235 Mg ha(-1) for Douglas-fir and 160 Mg ha(-1) for western hemlock), with 9.5, 29.3, 12.9, 308, and 32.7 Mg ha(-1) in the foliage, live branches, dead branches, stem wood, and stem hark, respectively. When compared with biomass estimates from six other studies, ranging in age from 22 to 110 years and from 96.3 to 636 Mg ha(-1), the biomass of the Fall River site was relatively high for its age, indicating very high productivity.

Stand-alone posterior ressection of lumbar hemivertebrae: case report

Background: In this case report we presented the stand-alone posterior approach for hemivertebra resection with unilateral laminar hooks.Case report: The patient was male and five years old. The coronal and sagital X-Rays images showed a failure of vertebral formation, segmented hemivertebra of third lumbar vertebra. The segmented hemivertebra caused a thoracolumbar scoliosis from T12 to L4 (rightside convexity), of 30 degrees (Cobb angle). The patient was submitted to a hemivertebra resection from posterior approach with two unilateral laminars hooks stabilization (superior lamina in L2 and inferior lamina of L4) in association to a compression system and autologus bone graft. The coronal X-Ray image after surgery showed a partial improvement to 25 degrees (Cobb angle) between L2 and L4. After three years of follow up it was not observed system failure (hook pull-out), maintance of curve (25 degrees of Cobb angle) and correction of trunk inbalance.Conclusion: The hemivertebra resection with posterior approach is safe, with satisfactory correction of scoliosis curve, which means is a good choice for congenital scoliosis surgical treatment.

Acquisition of motor abilities up to independent walking in very low birth weight preterm infants

Objective: To determine chronological and corrected ages at acquisition of motor abilities up to independent walking in very low birth weight preterms and to determine up to what point it is necessary to use corrected age.Methods: This was a longitudinal study of preterms with birth weight < 1,500 g and gestational age <= 34 weeks, free from neurosensory sequelae, selected at the high-risk infants follow-up clinic at the Hospital das Clinicas, Faculdade de Medicine de Botucatu, Universidade Estadual Paulista (UNESP) in Botucatu, Brazil, between 1998 to 2003, and assessed every 2 months until acquisition of independent walking.Results: Nine percent of the 155 preterms recruited were excluded from the study, leaving a total of 143 patients. The mean gestational age was 30 +/- 2 weeks, birth weight was 1,130 +/- 222 g, 59% were female and 44% were small for gestational age. Preterms achieved head control in their second month, could sit independent at 7 months and walked at 12.8 months' corrected age, corresponding to the 4th, 9th and 15th months of chronological age. There were significant differences between chronological age and corrected age for all motor abilities. Preterms who were small for their gestational age acquired motor abilities later, but still within expected limits.Conclusions: Very low birth weight preterms, free from neurosensory disorders, acquired their motor abilities within the ranges expected for their corrected ages. Corrected age should be used until independent walking is achieved.