| 7491. |
- Hennessy, Jay, 1976-, et al.
(författare)
-
Towards smart thermal grids : Techno-economic feasibility of commercial heat-to-power technologies for district heating
- 2018
-
Ingår i: Applied Energy. - : Elsevier BV. - 0306-2619 .- 1872-9118. ; 228, s. 766-776
-
Tidskriftsartikel (refereegranskat)abstract
- Recent improvements in low-temperature heat-to-power (LTHtP) technologies have led to an increase in efficiency at lower temperatures and lower cost. LTHtP has so far not been used in district heating. The aim of the study is to establish under what conditions the use of existing LTHtP technology is technically and economically feasible using a district heating system as the heat source. The organic Rankine cycle (ORC) is identified as the most interesting LTHtP technology, due to its high relative efficiency and the commercial availability of devices operating at temperatures in the district heating operating range. The levelised cost of electricity of several ORC devices is calculated for temperatures found in district heating, assuming a zero cost of heat. A case study from Sweden is used to calculate the levelised cost of electricity, the net present value and payback period, based on income from the electricity produced, excluding taxes. Hourly spot market electricity prices from 2017 are used, as well as forecast scenarios for 2020, 2030 and 2040. A sensitivity study tests the importance of electricity price, cost of heat and capital/installation cost. Based on the case study, the best levelised cost of electricity achieved was 26.5 EUR/MWh, with a payback period greater than 30 years. Under current Swedish market conditions, the ORC does not appear to be economically feasible for use in district heating, but the net present value and payback period may be significantly more attractive under other countries’ market conditions or with reduced capital costs. For a positive net present value in the Swedish market the capital cost should be reduced to 1.7 EUR/W installed, or the average electricity price should be at least 35.2 EUR/MWh, if the cost of heat is zero. The cost of heat is an important factor in these calculations and should be developed further in future work.
|
|
| 7492. |
- Henningsson, Johan, 1965-
(författare)
-
Does SEE information make a difference to fund managers?
- 2008
-
Ingår i: Sustainable Development. - : Wiley. - 0968-0802 .- 1099-1719. ; 16:3, s. 169-179
-
Tidskriftsartikel (refereegranskat)abstract
- The purpose of this paper is to explore how fund mangers, as cultured observers, make sense of social, environmental and ethical (SEE) information about companies. The paper uses a qualitative research approach involving in depth interviews with fund managers in Sweden. The analysis is influenced by a combination of system and network theories where social networks are imposed on fund managers when they make sense of corporate information. With reference to a growing SRI market, the rationales of social forces imposed on fund managers do not seem to have changed in order for them to include social aspects. Instead, these aspects are taken care of elsewhere in organizations, leaving fund managers as nodes in social networks, outside. However, if social aspects become an issue for the market positioning of companies, they could probably make more of a difference to the rationales of social forces surrounding fund managers.
|
|
| 7493. |
- Henningsson, Johan, 1965-
(författare)
-
Fund Managers as Cultured Observers
- 2008
-
Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- During the last few decades, Intellectual Capital (IC) has been recognized as an important resource in firms. In order to improve IC reporting, a number of guidelines have been initiated in Europe and in Japan. The capital market has been one important target group for these initiatives. However, actors on the capital market seem to be ambivalent towards IC information. They both demand and find such information useful, and at the same time, they seem to lack interest in it. This thesis contains five papers that aim to explore how actors on the capital market deal with IC information. A qualitative research approach is applied involving interviews with 14 fund managers in Stockholm. In the analysis of the data, fund managers are seen as ‘cultured observers’, meaning they are influenced by social forces when they observe IC information. Three social forces were identified as being imposed on the respondents. These forces represent social logics that are created in the relationship between the fund managers and · the organization in which they work · the market price and rationale · the agendas around certain companies The seemingly increased complexity of IC information does not always bother fund managers. The rationale of interacting social networks reduces this complexity in order for the information to make sense in their meaning-based reproduction. With respect to ethical funds, this thesis suggests that the rationales of the three social forces above do not seem to have changed in order to include social aspects. Instead, these aspects are taken care of elsewhere in organizations, leaving fund managers outside of their potential for compromising market rationales. Furthermore, fund managers tend to reduce the complexity of information concerning personnel and the working environment by depending on having the right management in organisations. This thesis contributes by increasing our understanding of how the social environment influences fund managers when they observe IC information. By regarding fund managers as ‘cultured observers’ it explores how complexity is dealt with, an approach that contrasts with assumptions within finance theory about profit maximizing actors. Here, the market price and rationale represent one social force among many.
|
|
| 7494. |
- Henningsson, Johan, et al.
(författare)
-
Två sidor av samma mynt : Hur tänker finansmarknadens aktörer och varför är det så svårt att kommunicera om icke-materiella resurser?
- 2010
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Det projekt som vi redogör för i den här rapporten är ett led i enspännande och samhällsrelevant internationell forskning, delvispådriven av olika regeringar och mellanstatliga organisationer avseenderedovisning, styrning och kommunikation av icke-materiellaresurser som t.ex. kompetens, kundrelationer och miljöfrågor. Forskningen inom området kan sägas ha startat under 1980-talet och tog ordentlig fart i mitten av 1990-talet. Det var dock först i början av 2000-talet som intresset för forskning kring kapitalmarknadskommunikation vaknade på riktigt allvar, troligen bl.a. som en följd avaktiemarknadens volatilitet. Vår tes i skriften är att sociala skillnader mellan olika aktörer måste beaktas vid kommunikationen mellan företag och finansmarknad. Informationen tolkas på olika sätt beroende på vilken social kulturman tillhör. Man kan säga att de olika tolkningarna speglar ”två sidorav samma mynt”.
|
|
| 7495. |
- Henoch, Ingela, et al.
(författare)
-
The Swedish version of the Frommelt Attitude Toward Care of the Dying Scale (FATCOD) : Aspects of validity and factors influencing nurses' and nursing students' attitudes
- 2014
-
Ingår i: Cancer Nursing. - : Lippincott Williams & Wilkins. - 0162-220X .- 1538-9804. ; 37:1
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Nurses' attitudes toward caring for dying persons need to be explored. The Frommelt Attitude Toward Care of the Dying (FATCOD) scale has not previously been used in Swedish language.Objectives: The objectives of this study were to compare FATCOD scores among Swedish nurses and nursing students with those from other languages, to explore the existence of 2 subscales, and to evaluate influences of experiences on attitudes toward care of dying patients.Methods: A descriptive, cross-sectional, and predictive design was used. The FATCOD scores of Swedish nurses from hospice, oncology, surgery clinics, and palliative home care and nursing students were compared with published scores from the United States, Israel, and Japan. Descriptive statistics, t tests, and factor and regression analyses were used.Results: The sample consisted of 213 persons: 71 registered nurses, 42 enrolled nurses, and 100 nursing students. Swedish FATCOD mean scores did not differ from published means from the United States and Israel, but were significantly more positive than Japanese means. In line with Japanese studies, factor analyses yielded a 2-factor solution. Total FATCOD and subscales had low Cronbach [alpha]'s. Hospice and palliative team nurses were more positive than oncology and surgery nurses to care for dying patients.Conclusions: Although our results suggest that the Swedish FATCOD may comprise 2 distinct scales, the total scale may be the most adequate and applicable for use in Sweden. Professional experience was associated with nurses' attitudes toward caring for dying patients.Implication for Practice: Care culture might influence nurses' attitudes toward caring for dying patients; the benefits of education need to be explored.
|
|
| 7496. |
|
|
| 7497. |
- Henriksson, Anna, 1983-, et al.
(författare)
-
Exploring lived experience of sedentary behavior during cancer treatment : - a phenomenological study
- 2021
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Background Sedentary behavior (SB) increases during cancer treatment, which may have deteriorating effects on long-term health. Few studies exploring patients' experience of SB during neo- or adjuvant cancer treatment have been conducted, and this information may be crucial in developing effective support for patients to reduce SB.Purpose To explore the lived experiences of SB in patients undergoing neo- or adjuvant cancer treatment and to explore the impact of the COVID-19 pandemic.MethodsIndividual interviews were conducted with patients undergoing treatment for breast, prostate and colorectal cancer recruited from the oncological department of a university hospital in Sweden. Interviews were analyzed phenomenologically and results presented as descriptions of the phenomenon SB. Results Preliminary results are that patients describe SB by depicting physical activity and awareness of its health benefits. Also, being inactive or sedentary is stigmatized. The type and phase of treatment, life circumstances (COVID-19 pandemic, sick leave) as well as motivation, social support, and self-image can impact SB during treatment.Conclusions The results indicate that SB is difficult for patients to discern. This suggests that SB is an unimplemented concept in the cancer context and needs to be addressed in a way that does not stigmatize patients. The coronavirus pandemic had both negative and positive impacts on SB for these patients. Furthermore, developing support that targets periods with more side-effects and helping patients reduce SB throughout changed life circumstances may be helpful.
|
|
| 7498. |
- Henriksson, Anna, et al.
(författare)
-
Exploring sedentary behavior during neo- or adjuvant treatment in patients with cancer : A phenomenological study
- 2024
-
Ingår i: European Journal of Oncology Nursing. - : ELSEVIER SCI LTD. - 1462-3889 .- 1532-2122. ; 70
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: Increased sedentary behavior during cancer treatment is common, which may have negative long-term health effects. Understanding patients' experience of sedentary behavior during neo- or adjuvant cancer treatment may be crucial in developing effective support for patients to reduce sedentary behavior. Therefore, the present study aimed to explore sedentary behavior in patients undergoing neo- or adjuvant cancer treatment. Methods: Eleven interviews were conducted with patients undergoing treatment for breast, prostate, and colorectal cancer. Participants were recruited from a university hospital in Sweden. Interviews were analyzed phenomenologically, and the results were presented as descriptions of the phenomenon sedentary behavior. Results: The overarching theme of sedentary behavior during cancer treatment was that sedentary behavior is experienced through being physically active or not. Furthermore, experiences of sedentary behavior increased with side effects and varied depending on the type and phase of cancer treatment, meaning that sedentary behavior is an adjustment to side effects. Additionally, sedentary behavior was influenced by life circumstances and social interaction, such as work status and having social support. Finally, sedentary behavior is influenced by strategies and motivations, such as the perceived benefits of physical activity and self-image. Conclusions: Sedentary behavior is difficult for patients to discern, which is why health care personnel may need to help patients by increasing awareness of the negative impact of sedentary behavior in a way that does not stigmatize patients. Furthermore, developing support that targets periods with more side effects and helping patients reduce sedentary behavior throughout changing life circumstances may be helpful.
|
|
| 7499. |
- Henriksson (Gunnarsson), Tommy
(författare)
-
Microwave Imaging of Biological Tissues : the current status in the research area
- 2006
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Microwave imaging is a non-ionizing method promising an ability of depth-scanning different biological bodies. The research in this area started in the late 70s and many contributions has been achieved by different groups until present, which has influenced and open up new possibilities of the technique. This document will review the historical work by the different groups to settle objectives of the research in microwave imaging at the Department of Computer Science and Electronics at Mälardalen University and the plan of the author’s Ph. D. studies. The planar 2.45 GHz microwave camera located at Supélec, France, may be a very useful platform in early studies of the three-dimensional properties of microwave imaging for breast tumor detection. By applying the developed Newton- Kantorovich algorithm to the planar camera a solid state of the art platform for quantitative reconstruction of inhomogeneous objects may be established.
|
|
| 7500. |
- Henriksson, Hanna, et al.
(författare)
-
A New Mobile Phone-Based Tool for Assessing Energy and Certain Food Intakes in Young Children : A Validation Study
- 2015
-
Ingår i: JMIR mhealth and uhealth. - : JMIR Publications. - 2291-5222. ; 3:2
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Childhood obesity is an increasing health problem globally. Obesity may be established already at pre-school age. Further research in this area requires accurate and easy-to-use methods for assessing the intake of energy and foods. Traditional methods have limited accuracy, and place large demands on the study participants and researchers. Mobile phones offer possibilities for methodological advancements in this area since they are readily available, enable instant digitalization of collected data, and also contain a camera to photograph pre- and post-meal food items. We have recently developed a new tool for assessing energy and food intake in children using mobile phones called the Tool for Energy Balance in Children (TECH).Objective: The main aims of our study are to (1) compare energy intake by means of TECH with total energy expenditure (TEE) measured using a criterion method, the doubly labeled water (DLW) method, and (2) to compare intakes of fruits and berries, vegetables, juice, and sweetened beverages assessed by means of TECH with intakes obtained using a Web-based food frequency questionnaire (KidMeal-Q) in 3 year olds.Methods: In this study, 30 Swedish 3 year olds were included. Energy intake using TECH was compared to TEE measured using the DLW method. Intakes of vegetables, fruits and berries, juice, as well as sweetened beverages were assessed using TECH and compared to the corresponding intakes assessed using KidMeal-Q. Wilcoxon matched pairs test, Spearman rank order correlations, and the Bland-Altman procedure were applied.Results: The mean energy intake, assessed by TECH, was 5400 kJ/24h (SD 1500). This value was not significantly different (P=.23) from TEE (5070 kJ/24h, SD 600). However, the limits of agreement (2 standard deviations) in the Bland-Altman plot for energy intake estimated using TECH compared to TEE were wide (2990 kJ/24h), and TECH overestimated high and underestimated low energy intakes. The Bland-Altman plots for foods showed similar patterns. The mean intakes of vegetables, fruits and berries, juice, and sweetened beverages estimated using TECH were not significantly different from the corresponding intakes estimated using KidMeal-Q. Moderate but statistically significant correlations (ρ=.42-.46, P=.01-.02) between TECH and KidMeal-Q were observed for intakes of vegetables, fruits and berries, and juice, but not for sweetened beverages.Conclusion: We found that one day of recordings using TECH was not able to accurately estimate intakes of energy or certain foods in 3 year old children.
|
|
