Measurement of the Tau Lepton Polarisation at LEP2

A first measurement of the average polarisation P_tau of tau leptons produced in e+e- annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from the kinematic spectra of tau hadronic decays. The measured value P_tau = -0.164 +/- 0.125 is consistent with the Standard Model prediction for the mean LEP energy of 197 GeV.A first measurement of the average polarisation Pτ of tau leptons produced in e + e − annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from the kinematic spectra of tau hadronic decays. The measured value Pτ=−0.164±0.125 is consistent with the Standard Model prediction for the mean LEP energy of 197 GeV.A first measurement of the average polarisation P_tau of tau leptons produced in e+e- annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from the kinematic spectra of tau hadronic decays. The measured value P_tau = -0.164 +/- 0.125 is consistent with the Standard Model prediction for the mean LEP energy of 197 GeV

Two Methods for Assessment of Chronic Cerebellar Stimulation

The problem addressed by this thesis is the quantification of postural responses and muscle tone in patients with pathologies of the central nervous system before and after electrical stimulation of the cerebellum

A Poisson-like Model of Sub-clinical Signs from the Examination of Healthy Aging Subjects

Background and aims: Our studies of the standard neurological examination on 66 middleaged (50–64 yrs) and elderly subjects (65–84 yrs) demonstrate that healthy elders have neurological deficits (or “signs”) that are not associated with specific known neurological disease. The purpose of the current study is to describe this loss of neurological function in healthy aging subjects as seen through accumulated subclinical neurological signs present. Methods: Logistic regression is applied to the data on each of six signs. Parameters determined are used to describe the distribution of first occurrence times for each sign. The results are then used to construct a Poisson-like model that describes the accumulation in the number of signs present over time on average. This model is also used to simulate a longitudinal population to explore the variability in the number of signs present over time in an aging population. Results: As the rate of arrival of the signs is heterogeneous, as determined through logistic regression, and the number of signs detected is finite, the resulting distributions of the number of signs over time have a different nature than Poisson. Our results suggest that we can expect to see on average one neurological deficit in healthy people by the age of 62, and that the expected number of deficits increases linearly at the rate of 1 additional sign every 12 years over a wide age range (age 70–90). The distribution of the number of deficits over time is also described. Conclusions: The linearity in the average rate at which signs appear in this population is somewhat of a surprise, in that an increasing (accelerating) rate might be anticipated. In addition to characterizing the neurological exam results in this group, we demonstrate a methodology that allows the comparison of groups and defines a rate of neurological aging

Targeted box and blocks test: Normative data and comparison to standard tests

<div><p>Background</p><p>The Box and Block Test (BBT) is a functional outcome measure that is commonly used across multiple clinical populations due to its benefits of ease and speed of implementation; reliable, objective measurement; and repetition of motion. In this study, we introduce a novel outcome measure called the targeted BBT that allows for the study of initiation, grasping, and transport of objects, and also of object release. These modifications to the existing test may increase the ecological validity of the measure while still retaining the previously stated benefits of the standard BBT.</p><p>Methods</p><p>19 able-bodied subjects performed the targeted BBT and two other standard tests. Using an integrated movement analysis framework based on motion capture and ground force data, quantitative information about how subjects completed these tests were captured. Kinematic parameters at the wrist, elbow, shoulder, thorax, and head, as well as measures of postural control, were calculated and statistically compared across the three tests.</p><p>Results</p><p>In general, the targeted BBT required significantly higher RoM at the elbow, shoulder, thorax and head when compared to standard tests. Peak angles at these joints were also higher during performance of the targeted BBT. Peak angles and RoM values for the targeted BBT were close to those found in studies of movements of able-bodied individuals performing activities of daily living.</p><p>Conclusion</p><p>The targeted BBT allows analysis of repetitive movements, and may more closely model common real-world object manipulation scenarios in which a user is required to control a movement from pick-up to release.</p></div

Children as eco-citizens?

Education for sustainability in early childhood tends to focus on practices and advocacy, rather than on the aims of this education. We suggest that the aim should be to consider children as being and becoming eco-citizens. This suggestion is built on an exploration of children as eco-citizens. With theories concerning child-sized citizenship we suggest a description of children and adults as being and becoming eco-citizen. We explore this through the fields of nature connection and science and children’s curiosity. We find that environmentally friendly practices as gardening and harvesting wild food show how children’s eco-citizenship is realizable. We support this additionally by references to how children’s literature, seeing how children depicted as eco-citizens can support the notion of children as eco-citizens. Through these analyses, we conclude that children should be viewed as being and becoming eco-citizens.publishedVersio

Description of tests.

<p>Description of tests.</p

Distribution of subject scores for the sBBT, mBBT, and tBBT.

<p>Outliers are plotted as red crosses.</p