title: Childhood Obesity Prevention: A Parent Administered Behavioural Intervention to Increase Child Physical Activity

authors: Howarth, Joelene Marie

subjects: Chilhood Obesity Prevention

abstract: Obesity is a complex and increasingly prevalent health disorder that is associated with a wide range of medical, social, and psychological difficulties. People are more likely to be obese if they consume an energy dense diet but do not engage in physical activity. Research has indicated that interventions, when implemented during childhood, have long-term outcomes that are superior to interventions implemented in adulthood. This research piloted a behaviourally based intervention programme, with parents as the agents of change, to promote a lifestyle change for inactive children. The programme focussed on increasing physical play (lifestyle activity) and on decreasing sedentary behaviour (an obesity promoting behaviour) during children's after school leisure time. The intervention was investigated using three case studies. Although no conclusive evidence was gained regarding the effectiveness of the pilot programme there was some evidence that children participating reduced their amount of sedentary behaviour and increased the amount of time they spent in physical play. There was also evidence that parents were able to administer the programme and that they found it useful. The results from the present study suggest that the development and application of parent administered behavioural programmes, in the form of packaged interventions to prevent child
obesity, warrant further investigation both in terms of the benefits and costeffectiveness it could offer parents and practitioners alike.

text: Childhood Obesity Prevention: A Parent Administered Behavioural Intervention to Increase Child Physical Activity Obesity is a complex and increasingly prevalent health disorder that is associated with a wide range of medical, social, and psychological difficulties. People are more likely to be obese if they consume an energy dense diet but do not engage in physical activity. Research has indicated that interventions, when implemented during childhood, have long-term outcomes that are superior to interventions implemented in adulthood. This research piloted a behaviourally based intervention programme, with parents as the agents of change, to promote a lifestyle change for inactive children. The programme focussed on increasing physical play (lifestyle activity) and on decreasing sedentary behaviour (an obesity promoting behaviour) during children's after school leisure time. The intervention was investigated using three case studies. Although no conclusive evidence was gained regarding the effectiveness of the pilot programme there was some evidence that children participating reduced their amount of sedentary behaviour and increased the amount of time they spent in physical play. There was also evidence that parents were able to administer the programme and that they found it useful. The results from the present study suggest that the development and application of parent administered behavioural programmes, in the form of packaged interventions to prevent child
obesity, warrant further investigation both in terms of the benefits and costeffectiveness it could offer parents and practitioners alike.

year: 2006

title: Transferring sentiment knowledge between words and tweets

authors: Bravo-Marquez, Felipe

subjects: computer science

abstract: Message-level and word-level polarity classification are two popular tasks in Twitter sentiment analysis. They have been commonly addressed by training supervised models from labelled data. The main limitation of these models is the high cost of data annotation. Transferring existing labels from a related problem domain is one possible solution for this problem. In this paper, we study how to transfer sentiment labels from the word domain to the tweet domain and vice versa by making their corresponding instances compatible. We model instances of these two domains as the aggregation of instances from the other (i.e., tweets are treated as collections of the words they contain and words are treated as collections of the tweets in which they occur) and perform aggregation by averaging the corresponding constituents. We study two different setups for averaging tweet and word vectors: 1) representing tweets by standard NLP features such as unigrams and part-of-speech tags and words by averaging the vectors of the tweets in which they occur, and 2) representing words using skip-gram embeddings and tweets as the average embedding vector of their words. A consequence of our approach is that instances of both domains reside in the same feature space. Thus, a sentiment classifier trained on labelled data from one domain can be used to classify instances from the other one. We evaluate this approach in two transfer learning tasks: 1) sentiment classification of tweets by applying a word-level sentiment classifier, and 2) induction of a polarity lexicon by applying a tweet-level polarity classifier. Our results show that the proposed model can successfully classify words and tweets after transfer.

text: Transferring sentiment knowledge between words and tweets Message-level and word-level polarity classification are two popular tasks in Twitter sentiment analysis. They have been commonly addressed by training supervised models from labelled data. The main limitation of these models is the high cost of data annotation. Transferring existing labels from a related problem domain is one possible solution for this problem. In this paper, we study how to transfer sentiment labels from the word domain to the tweet domain and vice versa by making their corresponding instances compatible. We model instances of these two domains as the aggregation of instances from the other (i.e., tweets are treated as collections of the words they contain and words are treated as collections of the tweets in which they occur) and perform aggregation by averaging the corresponding constituents. We study two different setups for averaging tweet and word vectors: 1) representing tweets by standard NLP features such as unigrams and part-of-speech tags and words by averaging the vectors of the tweets in which they occur, and 2) representing words using skip-gram embeddings and tweets as the average embedding vector of their words. A consequence of our approach is that instances of both domains reside in the same feature space. Thus, a sentiment classifier trained on labelled data from one domain can be used to classify instances from the other one. We evaluate this approach in two transfer learning tasks: 1) sentiment classification of tweets by applying a word-level sentiment classifier, and 2) induction of a polarity lexicon by applying a tweet-level polarity classifier. Our results show that the proposed model can successfully classify words and tweets after transfer.

year: 2018

title: The Waikato invasion 1863-1864: A counter-insurgency approach

authors: Swears, Calum Robert

subjects: Counterinsurgency

abstract: Counter-insurgency as a strategy has only been explicitly espoused in American and British military tactical manuals in recent decades. It is anachronistic to military terminology before the last half century, but as this thesis illustrates counter-insurgency can be seen in embryonic form in the conflicts of the 1860s between Indigenous Māori and invading British forces in Aotearoa New Zealand. This thesis examines how early counter-insurgency strategy was evident in the tactical and strategic approaches used by Crown forces during the invasion of the Waikato in 1863-64. It asks: what evidence of counter-insurgency strategy can be seen in both British and Māori tactics at the time, and were they planned and intentional? 
Using two recent counter-insurgency tactical manuals - one American and the other British - this study compares present-day counter-insurgency principles, philosophies, and approaches to examples of Māori and British strategies during the 1860’s wars in Waikato, New Zealand. It illustrates how the Crown’s “suppression of rebellion” served as the contemporary political wording for its counter-insurgency campaign, which effectively repositioned Indigenous peoples as insurgents and “rebels” in their own territories and legitimated British colonial authority. Thus, this study argues that counter-insurgency in British military history arose from the various colonial invasions and occupations it undertook over several centuries. In Aotearoa, as this thesis argues, counter-insurgency tactics were used to establish legitimacy through civil-military operations such as land seizure, public proclamations and reports that vilified Māori and asserted British governing authority. The history of counter-insurgency as it is understood in British and American military thinking today, then, as this study contends is deeply connected to, and informed by, powerful colonial discourses, strategies, and experiences similar to those explored in this study of the Waikato invasion.

text: The Waikato invasion 1863-1864: A counter-insurgency approach Counter-insurgency as a strategy has only been explicitly espoused in American and British military tactical manuals in recent decades. It is anachronistic to military terminology before the last half century, but as this thesis illustrates counter-insurgency can be seen in embryonic form in the conflicts of the 1860s between Indigenous Māori and invading British forces in Aotearoa New Zealand. This thesis examines how early counter-insurgency strategy was evident in the tactical and strategic approaches used by Crown forces during the invasion of the Waikato in 1863-64. It asks: what evidence of counter-insurgency strategy can be seen in both British and Māori tactics at the time, and were they planned and intentional? 
Using two recent counter-insurgency tactical manuals - one American and the other British - this study compares present-day counter-insurgency principles, philosophies, and approaches to examples of Māori and British strategies during the 1860’s wars in Waikato, New Zealand. It illustrates how the Crown’s “suppression of rebellion” served as the contemporary political wording for its counter-insurgency campaign, which effectively repositioned Indigenous peoples as insurgents and “rebels” in their own territories and legitimated British colonial authority. Thus, this study argues that counter-insurgency in British military history arose from the various colonial invasions and occupations it undertook over several centuries. In Aotearoa, as this thesis argues, counter-insurgency tactics were used to establish legitimacy through civil-military operations such as land seizure, public proclamations and reports that vilified Māori and asserted British governing authority. The history of counter-insurgency as it is understood in British and American military thinking today, then, as this study contends is deeply connected to, and informed by, powerful colonial discourses, strategies, and experiences similar to those explored in this study of the Waikato invasion.

year: 2022