Achieving accurate FTIR measurements on high performance bandpass filters

The sources of ordinate error in FTIR spectrometers are reviewed with reference to measuring small out-of-band features in the spectra of bandpass filters. Procedures for identifying instrumental artefacts are described. It is shown that features well below 0.01%T can be measured reliably

Perception of emotion in music in adults with cochlear implants

Music is an integral aspect of culture that is uniquely tied to our emotions. Previous studies have shown that hearing loss and cochlear implantation have deleterious effects on music and emotion perception, particularly cues related to pitch, melody, and mode. The purpose of this study is to examine acoustic cues that adults with cochlear implants and adults with normal hearing might use to perceive emotion in music (e.g., tempo and pitch range). One adult (ages 18-50 years) with a cochlear implant and 15 adults who have normal hearing were tested. The participants listened to a series of 40 melodies which varied along tempo and pitch range. Ten melodies conveyed sadness (small pitch range; slow tempo) and 10 conveyed happiness (large pitch range; fast tempo). The remaining 20 presented conflicting cues (small pitch range + fast tempo or large pitch range + slow tempo). We asked participants to rate the emotion of the musical excerpt on a 7-point Likert scale along three dimensions: happy-sad, pleasant-unpleasant, and engaged-unengaged. Results showed that adults with NH and CIs relied on tempo more than pitch range when perceiving emotion in music, but in two instances adults with NH took pitch range into account when rating. The results from this study will help shed light on how effectively cochlear implants convey musical emotions, and could eventually lead to improvements in music perception in listeners with hearing loss

The Impact of Distance Education on Therapy Services for Students with ASD: An SLP Perspective

The coronavirus disease of 2019 (COVID-19) pandemic caused an abrupt change in the day-to-day lives of individuals across the world as adults were forced to work from home and children were forced into virtual school environments. For all students, this disruption in schedule and daily routine been hard, but especially those with autism spectrum disorder (ASD) (Mumbardo-Adam et al., 2021). For many students with ASD, school is a place in which they receive many essential services and social interactions, such as speech therapy, that they may not receive other places. The purpose of this survey research was to understand the speech-language pathologist’s perceptions of the effects distance learning had on the quality and delivery of speech therapy services provided to students with ASD amidst the COVID-19 pandemic. Results revealed that the 2020-2021 school-year provided SLPs across the country with a novel experience, that was unique for each individual. Current findings will be discussed and compared to previous research related to efficacy of distance learning

The effect of AC magnetic fields on liquid-metal free surfaces in industrialMHD.

In this thesis we investigate free-surface instabilities which occur in various industrial processes involving liquid metal. Specifically, we examine a number of simple problems with a view to developing a plausible theoretical description based on MHD. Of particular interest is the behaviour of the free surface of a pool of liquid metal when it is submitted to an alternating magnetic field. The first problem we examine considers the effect of a low-frequency mag- netic field on a pool of liquid metal. An initially circular pool is deformed into radially oscillating starfish modes at certain critical magnetic field strengths. We study these azimuthal modes theoretically by investigating the behaviour of an isolated mode. We also consider the influence of geometry in our studies of a related problem invloving a rectangular strip of liquid metal. At certain critical magnetic field strengths, an elongated pool is deformed into transverse modes. Aside from complicated mode coupling, the behaviour of these trans- verse modes is similar to the starfish . Both the starfish and transverse modes are caused by a Mathieu-type subharmonic instability. We next consider the effect of a medium-frequency magnetic field on an initially circular pool of liquid metal. Experimentally we study the effect of a vertical alternating medium-frequency magnetic field on an initially circular pool. We observe two types of behaviour: slow radial oscillation of the pool perimeter and rotation of the pool about its centre. The physics of this problem are significantly more complicated than the starfish and strip problems. Accordingly a description in terms of the previous theory is not possible. The final problem we consider is the effect of a high-frequency magnetic field the surface of a conductor. Using a phase-field approach we consider two simple problems: the first is to calculate the rest shape of an infinite strip of liquid resting on a substrate in a vertical gravitational field; the second is to calculate the equilibrium shape of the cross-section of a column of a liquid conductor submitted to a high-frequency magnetic field whose field lines are parallel far from the conductor. Our numeric solutions compare well with previously known analytic solutions

‘Life just kind of sparkles’: Clients’ experiences of being in a Cognitive Behavioural Group and its impact on reducing shame in Obsessive Compulsive Disorder (OCD)

This is a qualitative study exploring the personal accounts of service users relating to their experiences of being in Group Cognitive Behavioural Therapy (GCBT) with others who share a similar difficulty associated with Obsessive Compulsive Disorder (OCD). Qualitative process research is lacking in the area of GCBT which has been recently developed for OCD and this study aims to address the gap. Eight participants were purposively selected from two groups. The interviews were transcribed verbatim and analysed using Interpretative Phenomenological Analysis (IPA). Reflexivity sections have been incorporated to highlight my process and reflexive capacity during the research cycle. Five superordinate themes were generated in the participants’ personal accounts relating to the experience of being in group therapy. These were eventually labelled as ‘Engagement in the group process’, ‘Normalising’, ‘Courage to Fight’, ‘Being my own Therapist’ and ‘Restricted by Shame vs. Engaging with Life’. Participants also commented on the helpful aspects of group therapy and made recommendations for change to the content and structure of the group. The thesis documents my analysis relating to the meaning for participants who shared in a group with others who had a similar difficulty and highlights the significant benefits of the group process as an intervention. Aspects of the group experience that hindered engagement in therapy are also explored. Implications for Cognitive Behavioural Theory are discussed and the relationship of the findings to Social Psychology is explored. The relevance of the findings to Counselling Psychology is highlighted. Recommendations for improvement to the content and structure of ongoing groups are outlined and the role of the group in future clinical practice is explored. A critical appraisal outlining the strengths and limitations of the study is presented and suggestions for future research are highlighted

A comparison of selected mechanical factors in male baseball and female fast pitch softball batting

Call number: LD2668 .T4 1986 S67Master of ScienceKinesiolog

Impact of prior accumulated work and intensity on power output in elite/international level road cyclists—a pilot study

Background. This study aimed to investigate the impact of the intensity of prior accumulated work on the decline in power output in elite/international level road cyclists, comparing the effects of prior continuous moderate intensity versus intermittent high intensity cycling.Methods. Nine elite/international level road cyclists (age 26.2 +/- 4.0 years; body mass: 66.6 +/- 5.5 kg; height: 176 +/- 0.4 cm) conducted a 12-min field test (12 min(fresh)) during two consecutive training camps. Participants then performed both a 150-min moderate intensity continuous (MIC) work bout or a 150-min high intensity intermittent (HII) race simulation in randomized order, cross-over design. After each condition a 12-min field test (12 min(fatigue)) was completed.Results. Absolute and relative 12min(fresh) power output were not significantly different between training camps (p>0.05). The 12 min(fatigue) power after HII was significantly lower than 12min(fatigue) after MIC (Delta=14W; p=0.014). Participants recorded more percentage time (%Time) in heart rate (HR) zone 3 (Delta=9.2%; p=0.003) and power output band between 5.0-7.9W.kg(-1) (Delta=8.9%; p=0.002) as well as higher total work (Delta=237 kJ; p <= 0.001) during HII.Conclusion. These findings reveal that the decline in power output is higher after HII compared to MIC cycling work bouts. This suggests that the quantification of total work and intensity should be used in conjunction to predict a distinctive decline in power output. Future research is required to better understand the mechanisms of endurance "durability" in elite/international level road cyclists