| 1. |
- Andersson, Helen, 1968-, et al.
(author)
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A multimodal approach to song
- 2016
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In: Handbuch Sprache im multimodalen Kontext. - Berlin : Walter de Gruyter. - 9783110295740 - 9783110296099 ; , s. 372-391
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Book chapter (other academic/artistic)
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| 2. |
- Andersson, Helen, 1968-
(author)
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Att imponera med en hälleflundra
- 2005
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In: Retorikmagasinet: magasin för retorik och praktisk kommunikation. - : Retorikförlaget. - 1403-9052. ; :26, s. 8-11
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Journal article (pop. science, debate, etc.)
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| 3. |
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| 4. |
- Andersson, Helén C., 1968, et al.
(author)
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Regulation of the Indonesian throughflow by baroclinic draining of the North Australian Basin
- 2005
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In: Deep-Sea Research Part I-Oceanographic Research Papers. - : Elsevier BV. - 0967-0637. ; 52:12, s. 2214-2233
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Journal article (peer-reviewed)abstract
- The Indonesian throughflow (ITF) is studied using historic hydrographical data with purpose of obtaining a description of the characteristics of the large-scale flow and an understanding of both the forcing and control of the flow. The investigation makes use of the steric sea level and the contents of freshwater and heat in the water Column integrated down to the depth of the deepest connection (effective sill depth) between the Pacific and Indian Oceans within the Indonesian seas. It is shown that it is mainly low-saline water of North Pacific origin that fills the upper part of both the Indonesian seas and a downstream buoyant (surface) pool (DBP) that stretches horizontally over a large part of the North Australian Basin. The long-term mean steric sea level in the Indonesian seas is approximately horizontal and equal to the sea level in the neighboring part of the Pacific Ocean. This indicates small frictional losses against the mean throughflow, which is verified using a coupled multiple basin model of the Indonesian seas. The chan e of the steric sea level, from the Pacific Ocean level to the Indian Ocean level, Occurs essentially at the border between the DBP and the adjacent Indian Ocean. It is found that Darwin is situated inside the DBP, indicating that the sea level recorded in this place is a poor representative of mean and low frequency parts of the sea level variability of the Indian Ocean. It is argued that the control of ITF is set by the baroclinic transport capacity of the DBP relative to the adjacent (Indian Ocean) water. The mean ITF, estimated as the Outflow from the DBP to the South Equatorial Current, is about 10 Sv. The integrated ITF imprint is fresh and cold and the net heat transport is estimated to be 0.3 PW. The buffering capacity of the DBP is about 5 years, so variations in the circulation should be modest on shorter time-scales. It is suggested that the atmospheric transfer of freshwater to the North Pacific and vertical mixing in the North Pacific provide the driving of the mean ITF and that ITF is a major branch of the estuarine-type vertical circulation of the North Pacific. (c) 2005 Elsevier Ltd. All rights reserved.
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| 5. |
- Andersson, Helén C., 1968, et al.
(author)
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Thermohaline circulation in a two-layer model with sloping boundaries and a mid-ocean ridge
- 2004
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In: DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH. - : Elsevier BV. - 0967-0637. ; 51:1, s. 93-106
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Journal article (peer-reviewed)abstract
- A model ocean basin has continental slopes at the west and north and a mid-ocean ridge running north-south. The first problem treated here is Stommel's (Deep-Sea Res. 5 (1958) 80) abyssal flow of a homogeneous fluid in the presence of topography with a source of fluid at the northwest corner. The flow is driven by uniform upwelling everywhere except over the non-flat topography where the fluid is not driven and inviscid. The solution over the topography is determined by conservation of potential vorticity with the flow being driven by matching to the known solution over the flat bottom. A second problem is the two-layer case for which we use an analysis by Salmon (J. Mar. Res. 50 (1992) 341) in which he obtained expressions for the potential vorticity distribution for inviscid, non-forced flow over topography. We produce analytical solutions for the two-layer case. Conservation of potential vorticity over the slopes leads to flows that make large north-south excursions as the fluid crosses the topographic regions over the western slope and the mid-ocean ridge. We justify our procedure by showing a similarity between a wind-driven double gyre solution of Salmon's that shows a cyclonic circulation on the onshore (Gulf Stream) side of the anticyclonic wind gyre and an observed cyclonic gyre in the Slope Sea inshore of the Gulf Stream. For the two-layer case we obtain flow over the midocean ridge in the lower layer that compares favorably with the excursion of particles over the mid-Atlantic Ridge as reported by Defant (Deutsche Atlantische Expedition 'Meteor' 1925-1927, 6, 1941, pp. 191-260; Physical Oceanography, Vol. 1, Pergamon Press, New York, Oxford, London, Paris, 1961). Our inviscid solutions contain sharp discontinuities which will have to be smoothed by friction when viscosity is added, but it is possible that friction will take the flow far from the one that we have derived. A numerical solution of the problem is planned to test this possibility.
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| 6. |
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| 7. |
- Andersson, Helen, 1968-, et al.
(author)
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Flags and fields : a comparative analysis of national identity in butter packaging in Sweden and the UK
- 2023
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In: Social Semiotics. - : Routledge. - 1035-0330 .- 1470-1219. ; 33:4, s. 861-882
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Journal article (peer-reviewed)abstract
- Researchers have shown that it is common to use nationalist appeals when marketing food products. Research has also shown that geographical places play an important role in creating feelings of national identity and national belonging. To a much lesser extent, research has shown how these “places” are represented and reproduced in the packaging of food products in specific national environments and to an even lesser extent, compared these representations and reproductions. In this article, using multimodal critical discourse analysis, we examine how butter packaging in Sweden and the UK represents nature in ways that create associations that are linked to the national identity that exists in each country. We argue that commercial interests, through their choice of packaging design, not only exploit cultural and political ideas and values but also reinforce them by connecting to prevailing national sentiments. In times of political and social change, this can be used to strengthen national affiliation and thus ally with political interests.
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| 8. |
- Andersson, Helen, 1968
(author)
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Hypertoniscreening - Tidig upptäckt av högt blodtryck via tandvården
- 2022
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Doctoral thesis (other academic/artistic)abstract
- Background: Hypertension is the main risk factor for the world’s total disease burden. This is of significance for public health at national level, for healthcare professionals, resource consumption and costs as well as for the individual. In its impact on secondary diseases, hypertension may cause great suffering for the individual and high costs to society. Despite today's well-developed healthcare system, many people have undiagnosed high blood pressure. A large proportion of the healthy population regularly attends dental clinics. As a means of facilitating broad preventive public health work, dental clinics could carry out continuous medical screening in collaboration with primary healthcare in order to identify risk groups at an early stage, thereby reducing both oral and general ill health in the population. Aim: The overall aim was to study hypertension screening in dentistry in terms of feasibility, effects, health-economic consequences as well as individuals´ experiences. Methods: A combination of methods was employed for data collection and analysis. Study I is an epidemiological observational study where 2,025 participants aged 40-75 years were consecutively screened for high blood pressure at their annual dental visit. Data concerning risk factors were collected by means of a health questionnaire. Study II is a multicentre observational study of the same 2,025 participants. Those with a systolic mean blood pressure value of ≥140 mmHg and/or a diastolic mean blood pressure of ≥90 mmHg were asked to use a home blood pressure device. Study III is a cost-effectiveness analysis. Data on the short-term cost were based on the screening program, while data on the long-term cost were based on the short-term outcomes combined with modelling in a Markov cohort model. Deterministic and probabilistic sensitivity analyses were carried out to assess uncertainty. Study IV had a qualitative design with an inductive approach. Twenty participants were interviewed using open-ended questions. The material was analyzed in accordance with qualitative content analysis. A cross-sectional analysis of non-responders was conducted on the 2,219 individuals who were invited to participate in the hypertension screening study. Results: Study I found 170 participants with previously unknown hypertension (NNS = 12). The method yielded a positive predictive value (PPV) of 0.73 and eliminated 84.8% of the false-positive participants. The results also demonstrate that based on ESH/ESC risk estimation, 76.5% of those participants newly diagnosed with hypertension had a moderate or high risk of cardiovascular mortality within 10 years. Study II shows that 17.7% of a healthy population exhibited white-coat hypertension (WCHT) and that 57.2% of those with elevated blood pressure in the dental clinic had normal blood pressure at home. In Study III, the results of the long-term model revealed that the screening model is unlikely to be cost-effective in a country with a well-developed healthcare system and a relatively low prevalence of hypertension. The results in Study IV describe individuals´ experiences of blood pressure screening in dental health care by means of one theme: “No big deal”, based on two categories: convenient way to measure blood pressure and increased awareness of health. Conclusion: Opportunistic blood pressure screening with a two-step method in a dental setting was feasible and yielded a high positive predictive value. Although the screening model is unlikely to be cost-effective in a country with a well-developed healthcare system and a relatively low prevalence of undetected hypertension, the patients nevertheless reported a mainly positive experience, which argues well for the introduction of more screening. Blood pressure screening did not create any major concerns, was convenient and contributed to an increased awareness of health.
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| 9. |
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| 10. |
- Andersson, Helen, 1968, et al.
(author)
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Individuals' Experiences of Being Screened for Hypertension in Dental Health Care – “No Big Deal”
- 2022
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In: Patient Preference and Adherence. - 1177-889X. ; 16, s. 1449-1456
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Journal article (peer-reviewed)abstract
- Background: Hypertension is a common disease globally that accounts for the highest number of lost healthy life years and strongly associated with sequelae such as stroke and myocardial infarction. Early detection of individuals with high blood pressure can be ensured by screening also those who consider themselves “healthy”. Screening has both positive and negative effects where a diagnosis of hypertension can lead to worry about the future. These effects need to be elucidated in order to balance between benefit and harm before screening is introduced. The aim of the study was to describe individuals’ experiences of being screened for hypertension in dental health care. Methods: Data from individual semi-structured interviews, with twenty participants screened for cardiovascular risk factors in connection with dental examination and aged 55–80 years, were analysed by means of qualitative content analysis. Results: The results describe individuals’ experiences of blood pressure screening in dental health care by means of the following theme: “No big deal” based on two categories: “Convenient way of measuring blood pressure” and “Increased awareness of health”. Conclusion: The overall message from the interviews was that having one’s blood pressure measured when visiting the dentist was convenient, easy and “No big deal”. Blood pressure screening did not create any major concerns and contributed to an increased awareness of health.
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