A Dental Program Evaluation and Follow-up

Abstract

College-aged individuals are at risk for bicycle-related head injuries, but the risk of such injuries can be reduced by their use of bicycle helmets. The objective of this research was to measure the rate of bicycle helmet use by university bicyclists at a large public university in the southwestern United States at three different times. Bicyclists riding onto campus were observed as they rode through a main campus entrance in 1985, 1990, and 1994, and the percentage of bicyclists who were wearing a helmet was recorded. The bicyclists were unaware that their helmet use was being monitored. In 1985, 10% of bicyclists were wearing helmets; in 1990, only 4.4% wore helmets. In 1994, the proportion of helmet-wearing bicyclists had increased to 24%. Although the sample sizes were small, the 1994 increase was statistically significant. The reasons for the increase are unclear, and further study is needed to identify factors related to university bicyclists' use of bicycle helmets.     

Six‐month‐old infants recognize phrases in song and speech

Infants exploit acoustic boundaries to perceptually organize phrases in speech. This prosodic parsing ability is well‐attested and is a cornerstone to the development of speech perception and grammar. However, infants also receive linguistic input in child songs. This study provides evidence that infants parse songs into meaningful phrasal units and replicates previous research for speech. Six‐month‐old Dutch infants (n = 80) were tested in the song or speech modality in the head‐turn preference procedure. First, infants were familiarized to two versions of the same word sequence: One version represented a well‐formed unit, and the other contained a phrase boundary halfway through. At test, infants were presented two passages, each containing one version of the familiarized sequence. The results for speech replicated the previously observed preference for the passage containing the well‐formed sequence, but only in a more fine‐grained analysis. The preference for well‐formed phrases was also observed in the song modality, indicating that infants recognize phrase structure in song. There were acoustic differences between stimuli of the current and previous studies, suggesting that infants are flexible in their processing of boundary cues while also providing a possible explanation for differences in effect sizes.     

Head Canting in Paintings: An Historical Study

Head canting, a lateral shift of the head toward the shoulder axis, was examined in 1498 figures in the complete works of 11 painters from the XIV to the XX century: Martini, van Eyck Hubert and Jan, Holbein, Carracci, Velazquez, Rembrandt, Degas, Cèzanne, Klimt, and Modigliani. All figures (up to 9 in any one painting) that were not in complete profile and that were not depicted bowing or shifting their bodies were selected for analysis. Our analysis found a higher frequency (49%) of head canting in paintings than previously reported in naturalistic settings. Head canting was significantly higher in female figures than male figures. If a figure's head was facing laterally, head canting was more likely to be to the contralateral side. Head canting was lower in older figures than in children, youths, and adults. The highest level of head canting was seen in religious and mythological figures. Head canting was lower in figures of artists and professionals and virtually absent in depictions of nobles. Figures in pose were depicted with less head canting than those in natural settings. Head canting was lower in figures gazing toward the observer. Single-figure portraits head canted less than subjects in multiple-figure paintings. Author analysis revealed that head canting was pronounced in painters of religious subjects and in modern painters, whereas its degree was reduced in official portrait painters. These results are discussed in terms of dominance theory.     

The Many Faces of a Neutral Face: Head Tilt and Perception of Dominance and Emotion

Based on the premise that human head tilt is homologous to animal dominance displays, we hypothesized that when a head is bowed, the face should be perceived as submissive, sad, displaying inferiority emotions (i.e., shame, embarrassment, guilt, humiliation, and respect) and, paradoxically, as contracting the zygomatic major muscle. Conversely, a raised head should be perceived as more dominant and displaying greater superiority emotions (i.e., contempt and pride). We conducted two experiments showing 3-D models of faces to 64 participants. The results confirmed our hypotheses and also showed that a raised head connotes happiness. In addition, we found a significant influence of the actors' sex on participants' perception, such as a bias towards perceiving stronger upward contraction of the mouth in female than male actors when the head is tilted. We discuss these findings within the context of evolution and social behavior.     

Redress for old wounds: Canadian Prime Minister Stephen Harper's apology for the Chinese head tax

This essay examines how political leaders apologize for historical injustices. Specifically, we analyze Canadian Prime Minister Stephen Harper's apology for the head tax imposed upon Chinese immigrants. The prime minister's apology was historic in that it marked the first time a Canadian Prime Minister formally apologized for the head tax. We argue that Harper used a combination of the frontier myth and collective apology rhetoric in his expression of remorse toward the Chinese-Canadian community. While controversial, this rhetoric created a discursive space for a constructive and strengthened relationship between the Chinese-Canadian community and the Canadian government.     

Young women farm heads in Greek agriculture: entering farming through policy incentives

This work examines the entry of young Greek women into farming as heads of farmholdings under the relevant EU and national framework of incentives. The work is based on the analysis of available secondary information and mail-survey data secured from a sample of 128 young women established in farming during the period 1991–2000 in the region of Thessaly, Central Greece. Their responses to the system of incentives are examined initially as a whole group and then separately by focusing on two typological polar opposites, that is those women that are entering farming as a lifestyle and those entering for reasons of necessity. There is documentation of young women farmers’ use of the incentives and benefits derived there from and their assumption of a certain share in the decision-making power vis-a-vis their farmholding, the last-mentioned especially when the two typological groups are considered.     

Social work—a shifting paradigm

This article explores the changing role of social work in the context of community care legislation, the political era and the resulting care management process, using Kuhn's concept of paradigms. (Kuhn, T. (1970) The Structure of Scientific Revolutions (2nd Edition), (Chicago, University of Chicago Press). The article suggests that it is our values, the theories we use and the environment that is impacting on and creating a shift in the social welfare paradigm and social work. It proposes that there is a fundamental conflict between the traditional values and model of social work and the evolving care management role that social workers are assuming, which can, and is resulting in an identity crisis for social work professionals and presents evidence for this. The article concludes that social work is in a state of transition and crisis. In order to re-define itself it needs to consolidate its basis for being. Social work needs to re-align itself with its value base and firm knowledge base. Putting the client first rather than the State or its own professional interests, otherwise it is in danger of becoming simply an agent of the State rather than a service striving for equality and the welfare of its communities. In order to do this the article proposes that social work needs to be clear of its purpose, whom it is serving and how it proposes to move forward.     

The neurodevelopmental outcome in infants who have sustained a subdural haemorrhage from non‐accidental head injury

Subdural haemorrhage (SDH) in infants arises most commonly from non‐accidental head injury (NAHI) from shaking. Patients present with a varied severity of illness and a variety of symptoms and signs. Data on long‐term outcome of the survivors are not widely reported. The aim of this paper is to describe the physical and educational outcomes of children <2 years diagnosed with non‐accidental head injury and formulate guidelines on follow‐up. Data on 65 children <2 years with non‐accidental head injury and subdural haemorrhage diagnosed on CT/MRI/postmortem were extracted from the hospital and community notes and education reports. The Kings Outcome Scale for Childhood Head Injury (KOSCHI) was used. Sixteen children died (24.6%), 13 within 6 weeks and three 5 years after the injury. Of the 45 children followed up (follow‐up time 21.7–103 months), 25 had a good outcome, six were moderately disabled and 11 were severely disabled, while three were in persistent vegetative state. Problems identi?ed included cerebral palsy—16, ongoing seizures—5, visual problems—11, speech and language problems—17 and behavioural problems—13. Of the 29 children of school age on whom data were available, 12 children had a statement of educational needs. In conclusion, young children who survive non‐accidental head injury can have signi?cant physical, cognitive and behavioural problems. Regular follow‐up by a multidisciplinary team, which includes a community paediatrician, therapists, school health personnel and ophthalmologic services, until the child is established in school may facilitate early identi?cation of emerging problems and optimize management. Care must be taken not to discharge children with good outcomes, as behavioural and cognitive problems can emerge with time. Only a prospective study will help outline the subtle problems that can emerge with time in children with a so‐called good outcome. Copyright © 2004 John Wiley & Sons, Ltd.     

Cans and cants: Computational potentials for multimodality with a case study in head position

As the study of embodiment and multimodality in interaction grows in importance, there is a need for novel methodological approaches to understand how multimodal variables pattern together along social and contextual lines, and how they systematically coalesce in communicative meanings. In this work, we propose to adopt computational tools to generate replicable annotations of bodily variables: these can be examined statistically to understand their patterning with other variables across diverse speakers and interactional contexts, and can help organize qualitative analyses of large datasets. We demonstrate the possibilities thereby with a case study in head cant (side‐to‐side tilt of the head) in a dataset of video blogs and laboratory‐collected interactions, computationally extracting cant and prosody from video and audio and analyzing their interactions, looking at gender in particular. We find that head cant indexes an orientation towards the interlocutor and a sense of shared understanding, can serve a ‘bracketing’ function in interaction (for speakers to create parentheticals or asides), and has gendered associations with prosodic markers and interactional discourse particles.