Regional and temporal changes in bivalve diversity off the south coast of Portugal

12 pages, 8 figures.-- Printed version published Dec 10, 2008.From 2000 to 2006, a total of 75 bivalve species were identified, varying from 29 (spring 2001) to 54 species (spring 2005) per year. Seasonal tendencies in diversity varied according the year, thus the interpretation of long-term and regional scales is essential before drawing any conclusions in other studies. Richness and diversity consistently decreased with depth and increased with sediment grain size (from low in very coarse sand to high in coarse silt). Diversity decreased progressively from 3 to 16 m depth, thus the harsher shallower environments (due to waves and tidal air exposure) showed greater diversity than the most stable areas. Communities in finer sediments were more diverse than those in coarser sand. Evenness showed patterns opposite to diversity, overall.Diversity and evenness maps (produced with multivariate universal kriging), showed that most geographic areas with greater diversity were farer from river outflows and wastewater treatment plants. Two types of geographic pattern were observed: areas with persistently greater bivalve diversity through time and areas that changed locally from year to year. This spatial analysis can be used to establish priority conservation areas for management purposes, and to analyse the persistency of regional diversity patterns. The area with most habitat heterogeneity (Sotavento) corresponded to greatest diversity.There was a positive relationship between Spisula solida and Chamelea gallina landings and bivalve diversity 2 years and 1 year later, respectively. Possibly, local fisheries, by selectively withdrawing the commercial numerically dominant species from the ecosystem, increased diversity 1 to 2 years later, as the ecological niches of the dominants are quickly filled by several other species thereby creating a more even community. On regional scales, no significant impact was found on long-term bivalve diversity in local fisheries.This work was part of an MMR Post-doc program financed by Fundação para a Ciência e a Tecnologia BPD /14935/ 2004.Peer reviewe

Regional and temporal changes in bivalve diversity off the south coast of Portugal

12 pages, 8 figures.-- Printed version published Dec 10, 2008.From 2000 to 2006, a total of 75 bivalve species were identified, varying from 29 (spring 2001) to 54 species (spring 2005) per year. Seasonal tendencies in diversity varied according the year, thus the interpretation of long-term and regional scales is essential before drawing any conclusions in other studies. Richness and diversity consistently decreased with depth and increased with sediment grain size (from low in very coarse sand to high in coarse silt). Diversity decreased progressively from 3 to 16 m depth, thus the harsher shallower environments (due to waves and tidal air exposure) showed greater diversity than the most stable areas. Communities in finer sediments were more diverse than those in coarser sand. Evenness showed patterns opposite to diversity, overall.Diversity and evenness maps (produced with multivariate universal kriging), showed that most geographic areas with greater diversity were farer from river outflows and wastewater treatment plants. Two types of geographic pattern were observed: areas with persistently greater bivalve diversity through time and areas that changed locally from year to year. This spatial analysis can be used to establish priority conservation areas for management purposes, and to analyse the persistency of regional diversity patterns. The area with most habitat heterogeneity (Sotavento) corresponded to greatest diversity.There was a positive relationship between Spisula solida and Chamelea gallina landings and bivalve diversity 2 years and 1 year later, respectively. Possibly, local fisheries, by selectively withdrawing the commercial numerically dominant species from the ecosystem, increased diversity 1 to 2 years later, as the ecological niches of the dominants are quickly filled by several other species thereby creating a more even community. On regional scales, no significant impact was found on long-term bivalve diversity in local fisheries.This work was part of an MMR Post-doc program financed by Fundação para a Ciência e a Tecnologia BPD /14935/ 2004.Peer reviewe

Verification of the functional abilities and assistance needs of children with cerebral palsy

INTRODUÇÃO: Paralisia Cerebral é uma desordem do movimento e da postura, persistente, porém variável, surgida nos primeiros anos de vida pela interferência no desenvolvimento do sistema nervoso central, causada por uma desordem cerebral não progressiva ¹. Tem como principal característica a inabilidade do corpo em enfrentar com eficiência os efeitos da gravidade. Devido às alterações motoras é importante a participação do Fisioterapeuta na equipe interdisciplinar. Para tanto, deve-se realizar avaliações das dificuldades na paralisia cerebral para possibilitar uma melhor organização do programa fisioterapêutico. OBJETIVO: Avaliar as habilidades funcionais e a necessidade de auxílio do cuidador em crianças com até 18 meses de idade, e com paralisia cerebral. Método: Foram avaliadas 7 crianças com diagnóstico médico de paralisia cerebral, entre 10 e 18 meses de idade, com média de idade correspondente a um ano e dois meses. A avaliação ocorreu por meio do P.E.D.I. e foram analisados os escores bruto e normativo nas áreas de habilidades funcionais e assistência do cuidador. RESULTADOS: Verificou-se maior dificuldade nas crianças com paralisia cerebral na área de mobilidade e, desta forma, a necessidade de maior assistência em movimentos e posturas. CONCLUSÃO: Apesar das alterações nos componentes neuromotores observadas em crianças de risco, as mesmas acabam desenvolvendo estratégias motoras que lhes permitem desempenhar atividades funcionais, como por exemplo as situações citadas na área de auto-cuidado. Os cuidadores orientados pelo fisioterapeuta podem propor facilitações que beneficiarão a função da criança, sua participação na atividade e desenvolvimento da comunicação.INTRODUCTION: Cerebral Palsy is a movement and posture disorder caused by events occurring during pregnancy, childbirth, the neonatal period or during the first two years of life. Its main characteristic is the body's inability to efficiently face the effects of gravity. Due to the motor alterations, the participation of the physiotherapist in the interdisciplinary team is important. Assessment of the difficulties in cerebral palsy should take place to enable a better organization of the physiotherapeutic program. OBJETIVE: To analyze the constraints on the functional abilities and the assistance needs of children with cerebral palsy up to 18 months of age. METHODS: Seven children with a medical diagnosis of cerebral palsy, with ages between 10 and 18 months, mean age corresponding to one year and two months, were assessed. The assessment occurred by means of P.E.D.I. and the gross and normative scores in the areas of functional abilities and caregiver's assistance were analyzed. Results: The mobility area was the one in which the children with cerebral palsy had more difficulties; thus, they needed more assistance in movements and postures. CONCLUSION: In spite of the alterations in the neuromotor components observed in risk children, the same children end up developing motor strategies that allow them to perform functional activities; for example, the situations cited in the self-care area. The caregivers, guided by the physiotherapist, can propose the means that will benefit the child's function, his/her participation in the activity and communication development

Acute Auditory Stimulation with Different Styles of Music Influences Cardiac Autonomic Regulation in Men

Background: No clear evidence is available in the literature regarding the acute effect of different styles of music on cardiac autonomic control. Objectives: The present study aimed to evaluate the acute effects of classical baroque and heavy metal musical auditory stimulation on Heart Rate Variability (HRV) in healthy men. Patients and Methods: In this study, HRV was analyzed regarding time (SDNN, RMSSD, NN50, and pNN50) and frequency domain (LF, HF, and LF / HF) in 12 healthy men. HRV was recorded at seated rest for 10 minutes. Subsequently, the participants were exposed to classical baroque or heavy metal music for five minutes through an earphone at seated rest. After exposure to the first song, they remained at rest for five minutes and they were again exposed to classical baroque or heavy metal music. The music sequence was random for each individual. Standard statistical methods were used for calculation of means and standard deviations. Besides, ANOVA and Friedman test were used for parametric and non-parametric distributions, respectively. Results: While listening to heavy metal music, SDNN was reduced compared to the baseline (P = 0.023). In addition, the LF index (ms2 and nu) was reduced during exposure to both heavy metal and classical baroque musical auditory stimulation compared to the control condition (P = 0.010 and P = 0.048, respectively). However, the HF index (ms2) was reduced only during auditory stimulation with music heavy metal (P = 0.01). The LF/HF ratio on the other hand decreased during auditory stimulation with classical baroque music (P = 0.019). Conclusions: Acute auditory stimulation with the selected heavy metal musical auditory stimulation decreased the sympathetic and parasympathetic modulation on the heart, while exposure to a selected classical baroque music reduced sympathetic regulation on the heart

Imaging in abdominal trauma

A presente revisão objetiva descrever os recentes avanços tecnológicos dos métodos de diagnóstico por imagem e sua atual aplicabilidade no manuseio dos pacientes com trauma abdominal, bem como as principais apresentações pelos métodos de imagem dos diversos órgãos envolvidos.In this update review, we describe recents improvements of diagnostic imaging and their role in practical assistance of abdominal trauma. We also analyze abdominal injury as well as its main radiological features

Evaluation of movements of lower limbs in non-professional ballet dancers: hip abduction and flexion

<p>Abstract</p> <p>Background</p> <p>The literature indicated that the majority of professional ballet dancers present static and active dynamic range of motion difference between left and right lower limbs, however, no previous study focused this difference in non-professional ballet dancers. In this study we aimed to evaluate active movements of the hip in non-professional classical dancers.</p> <p>Methods</p> <p>We evaluated 10 non professional ballet dancers (16-23 years old). We measured the active range of motion and flexibility through Well Banks. We compared active range of motion between left and right sides (hip flexion and abduction) and performed correlation between active movements and flexibility.</p> <p>Results</p> <p>There was a small difference between the right and left sides of the hip in relation to the movements of flexion and abduction, which suggest the dominant side of the subjects, however, there was no statistical significance. Bank of Wells test revealed statistical difference only between the 1^stand the 3^rdmeasurement. There was no correlation between the movements of the hip (abduction and flexion, right and left sides) with the three test measurements of the bank of Wells.</p> <p>Conclusion</p> <p>There is no imbalance between the sides of the hip with respect to active abduction and flexion movements in non-professional ballet dancers.</p