| 1. |
- Flemme, Inger, et al.
(author)
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Long-term quality of life and uncertainty in patients living with an implantable cardioverter defibrillator.
- 2005
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In: Heart & lung : the journal of critical care. - St. Louis, MO : Elsevier BV. - 0147-9563 .- 1527-3288. ; 34:6, s. 386-92
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Journal article (peer-reviewed)abstract
- PURPOSE: This study describes the quality of life (QOL) and uncertainty in patients who have an implantable cardioverter defibrillator (ICD) and predicts QOL at long-term follow-up. METHODS: Long-term follow-up was defined as 6.9 years +/- 1 year (range 4.11-8.7 years). QOL was measured with the Quality of Life Index, and uncertainty was measured with the Mishel Uncertainty in Illness Scale. RESULTS: The overall QOL and health/functioning were unchanged over time. QOL in the socioeconomic (P = .002) and psychologic/spiritual domains (P = .012) decreased in the first year. From baseline to long-term follow-up, the QOL in the family domain (P = .011) and uncertainty (P = .002) decreased. Uncertainty was a predictor of low QOL. CONCLUSION: QOL was reasonably good 6.9 years post-ICD implantation. Patients felt less uncertain once they had passed the first year of their illness.
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| 2. |
- Hoglund, L, et al.
(author)
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Selective optical doping to predict the performance and reveal the origin of photocurrent peaks in quantum dots-in-a-well infrared photodetectors
- 2009
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In: INFRARED PHYSICS and TECHNOLOGY. - Exeter : Elsevier BV. - 1350-4495 .- 1879-0275. ; 52:6, s. 272-275
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Journal article (peer-reviewed)abstract
- Resonant optical pumping across the band gap was used as artificial doping in InAs/In0.15Ga0.85As/GaAs quantum dots-in-a-well infrared photodetectors. Through efficient filling of the quantum dot energy levels by simultaneous optical pumping into the ground states and the excited states of the quantum dots, the response was increased by a factor of 10. Low temperature photocurrent peaks observed at 120 and 148 meV were identified as intersubband transitions emanating from the quantum dot ground state and the quantum dot excited state, respectively by a selective increase of the electron population in the different quantum dot energy levels.
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| 3. |
- Höglund, Linda, 1974-, et al.
(author)
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Bias and temperature dependence of the escape processes in quantum dots-in-a-well infrared photodetectors
- 2008
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In: Applied Physics Letters. - New York : American Institute of Physics (AIP). - 0003-6951 .- 1077-3118. ; 93:10, s. 103501-
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Journal article (peer-reviewed)abstract
- The performance of quantum dots-in-a-well infrared photodetectors (DWELL IPs) has been studied by means of interband and intersubband photocurrent measurements as well as dark current measurements. Using interband photocurrent measurements, substantial escape of electrons from lower lying states in the DWELL structure at large biases was revealed. Furthermore, a significant variation in the escape probability from energy states in the DWELL structure with applied bias was observed. These facts can explain the strong temperature and bias dependence of both photocurrent and dark currents in DWELL IPs.
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| 4. |
- Höglund, Linda, 1974-, et al.
(author)
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Bias mediated tuning of the detection wavelength in asymmetrical quantum dots-in-a-well infrared photodetectors
- 2008
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In: Applied Physics Letters. - New York : AIP Publishing. - 0003-6951 .- 1077-3118. ; 93:20
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Journal article (peer-reviewed)abstract
- Bias-mediated tuning of the detection wavelength within the infrared wavelength region is demonstrated for quantum dots-in-a-well and dots-on-a-well infrared photodetectors. By positioning the InAs quantum dot layer asymmetrically in an 8 nm wide In0.15Ga0.85As/GaAs quantum well, a shift in the peak detection wavelength from 8.4 to 10.3 mu m was observed when reversing the polarity of the applied bias. For a dots-on-a-well structure, the peak detection wavelength was tuned from 5.4 to 8 mu m with small changes in the applied bias. These tuning properties could be essential for applications such as modulators and dual-color infrared detection.
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| 5. |
- Höglund, Linda, 1974-, et al.
(author)
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Origin of photocurrent in lateral quantum dots-in-a-well infrared photodetectors
- 2006
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In: Applied Physics Letters. - New York : American Institute of Physics. - 0003-6951 .- 1077-3118. ; 88:21
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Journal article (peer-reviewed)abstract
- Interband and intersubband transitions of lateral InAs/In0.15Ga0.85As dots-in-a-well quantum dot infrared photodetectors were studied in order to determine the origin of the photocurrent. The main intersubband transition contributing to the photocurrent (PC) was associated with the quantum dot ground state to the quantum well excited state transition. By a comparison between intersubband PC measurements and the energy level scheme of the structure, as deduced from Fourier transform photoluminescence (FTPL) and FTPL excitation spectroscopies, the main transition contributing to the PC was identified.
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| 6. |
- Koinberg, Inga-Lill, et al.
(author)
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The usefulness of a multidisciplinary educational programme after breast cancer surgery : A prospective and comparative study
- 2006
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In: European Journal of Oncology Nursing. - London : Elsevier. - 1462-3889 .- 1532-2122. ; 10, s. 273-82
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Journal article (peer-reviewed)abstract
- The aim of the study was to compare and evaluate a multidisciplinary educational programme with traditional follow-up visits to a physician after breast cancer surgery in terms of well-being, aspects of self-care and coping ability 1 year after diagnosis. A reduction in the intensity of follow-up after breast cancer surgery is recommended. New follow-up models are being debated and could be of interest. The study design was non-randomised and comparative. Ninety-six consecutively selected women with newly diagnosed breast cancer, classified as stage I or stage II, participated in either a multidisciplinary educational programme (n = 5 0), or traditional follow-up by a physician (n = 4 6). Three questionnaires were used: Functional Assessment of Cancer Therapy-General (FACT-G), a study specific questionnaire regarding self-care aspects (SCA) and Sense of Coherence (SOC). With the exception of physical well-being at baseline there was no significant difference between the groups. The women in the multidisciplinary educational programme increased their physical and functional well-being (P < 0.0 1). The women in traditional follow-up by a physician increased their functional well-being while social/family well-being (P < 0.0 1) decreased over time. There was a statistically significant difference in SOC (P < 0.0 0 1) in the traditional follow-up by a physician between baseline (mean=74.4, SD=12.4) and the 1-year follow up (mean=67.7, SD=11.4). Thus, women in the traditional follow-up by a physician scored lower in the area of SOC 1 year after diagnosis. A multidisciplinary educational programme may be an alternative to traditional follow-up by a physician after breast cancer surgery, but more research is needed about the financial benefits and effectiveness of such a programme.
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| 9. |
- Sitnicka Quinn, Ewa, et al.
(author)
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Critical role of FLT3 ligand in IL-7 receptor-independent T lymphopoiesis and regulation of lymphoid-primed multipotent progenitors
- 2007
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In: Blood. - Washington, DC : American Society of Hematology. - 0006-4971 .- 1528-0020. ; 110:8, s. 2955-2964
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Journal article (peer-reviewed)abstract
- The molecular pathways regulating lymphoid priming, fate, and development of multipotent bone marrow (BM) stem/progenitor cells that continuously replace thymic progenitors remain largely unknown. Herein, we show that fms-like tyrosine kinase 3 (Flt3) ligand (Fl)-deficient mice have distinct reductions in the earliest thymic progenitors in fetal, postnatal, and adult thymus. A critical role of FL in thymopoiesis was particularly evident in the absence of interleukin-7 receptor alpha (IL-7Ralpha) signaling. Fl-/-Il-7r-/- mice have extensive reductions in fetal and postnatal thymic progenitors that result in a loss of active thymopoiesis in adult mice, demonstrating an indispensable role of FL in IL-7Ralpha-independent fetal and adult T lymphopoiesis. Moreover, we establish a unique and critical role of FL, distinct from that of IL-7Ralpha, in regulation of the earliest lineage-negative (Lin(-)) Lin(-)SCA1+KIT+ (LSK) FLT3(hi) lymphoid-primed multipotent progenitors in BM, demonstrating a key role of FLT3 signaling in regulating the very earliest stages of lymphoid progenitors.
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| 10. |
- Strömberg, Anna, 1967-, et al.
(author)
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Computer-based education for patients with chronic heart failure : A randomised, controlled, multicentre trial of the effects on knowledge, compliance and quality of life
- 2006
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In: Patient Education and Counseling. - Shannon, Ireland : Elsevier. - 0738-3991 .- 1873-5134. ; 7, s. 128-35
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Journal article (peer-reviewed)abstract
- OBJECTIVE: To evaluate the effects of a single-session, interactive computer-based educational program on knowledge, compliance and quality of life in heart failure patients with special emphasis on gender differences.METHODS: One hundred and fifty-four patients, mean age 70 years, from five heart failure clinics were randomised to either receiving only standard education (n = 72) or standard education and additional computer-based education (n = 82).RESULTS: Knowledge was increased in both groups after 1 month with a trend towards higher knowledge (P = 0.07) in the computer-based group. The increase in knowledge was significantly higher in the computer-based group after 6 months (P = 0.03). No differences were found between the groups with regard to compliance with treatment and self-care or quality of life. The women had significantly lower quality of life and did not improve after 6 months as the men did (P = 0.0001).CONCLUSION: Computer-based education gave increased knowledge about heart failure. PRACTICE IMPLICATIONS: Computers can be a useful tool in heart failure education, but to improve compliance a single-session educational intervention is not sufficient. Gender differences in learning and quality of life should be further evaluated.
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