| 1. |
- Mintova, S., et al.
(författare)
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Growth of silicalite-1 films on gold substrates
- 1997
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Ingår i: Microporous Materials. - 0927-6513 .- 1873-3107. ; 11:3-4, s. 149-160
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Tidskriftsartikel (refereegranskat)abstract
- The crystallization of thin continuous silicalite-1 films on modified gold surfaces prepared at 100°C in clear precursor solutions has been studied by grazing angle X-ray diffractometry, infrared spectroscopy, dynamic light scattering, scanning electron microscopy, Kr adsorption and ellipsometry. The gold surfaces were pre-treated with a silane coupling agent, gamma-mercaptopropyltrimethoxysilane, and hydrolysed in an acidic solution, pH < 4, to create a modified negatively charged interface on which positively charged colloidal silicalite-1 seed crystals were adsorbed. The colloidal seed crystals are believed to be preferentially adsorbed with their {010} face parallel to the Au surface. Continued growth of the oriented seed crystals in a following hydrothermal step results in the formation of a continuous thin oriented crystalline film. The mechanism for the formation of silicalite-1 films on Au is discussed
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| 2. |
- Schoeman, Brian J.
(författare)
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Homogeneous nature of clear TPA-silicalite-1 precursor solutions
- 1997
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Ingår i: Microporous Materials. - 0927-6513 .- 1873-3107. ; 9:5-6, s. 267-271
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Tidskriftsartikel (refereegranskat)abstract
- The polymeric silica present in clear tetrapropylammonium (TPA) silicate solutions, with the molar composition 9TPAOH:25SiO2:480H2O:100ethanol and from which discrete colloidal crystals of TPA-silicalite-1 may be synthesized, has been characterized with respect to particle size using a modified method in which the reaction rate of monomeric silica with molybdic acid was recorded. The estimated particle size of 2.8 nm obtained with this method agrees well with previous studies of the sub-colloidal fraction wherein cryo-TEM and high effect laser light scattering techniques were employed.
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| 3. |
- Valtchev, V., et al.
(författare)
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Deposition of continuous silicalite-1 films on inorganic fibers
- 1997
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Ingår i: Microporous Materials. - 0927-6513 .- 1873-3107. ; 8:1-2, s. 93-101
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Tidskriftsartikel (refereegranskat)abstract
- Silicalite-fiber composites were prepared by a new method for the synthesis of molecular sieve films. The method consists of two steps: in the first one, the surface charge of the support is reversed by treatment with a cationic polymer solution and a monolayer of negatively charged colloidal molecular sieve seed crystals is adsorbed on the surface. The second step consists of hydrothermal treatment of the support in a molecular sieve precursor solution resulting in the formation of a continuous film of molecular sieve. The method was applied to carbon, ZrO2, Al2O3, mullite, ceramic and pyrex glass fibers. The crystallization of continuous silicalite-1 films on all types of fibers was confirmed by SEM, XRD, FTIR, DTA analyses and BET surface area measurements.
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| 4. |
- Ahlner-Elmqvist, Marianne, et al.
(författare)
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Characteristics and Quality of Life of Patients Who Choose Home Care at the End of Life
- 2008
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Ingår i: Journal of Pain and Symptom Management. - : Elsevier Inc.. - 0885-3924 .- 1873-6513. ; 36:3, s. 217-227
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Tidskriftsartikel (refereegranskat)abstract
- Cancer patients with advanced disease and short-survival expectancy were given hospitalbased advanced home care (AHC) or conventional care (CC), according to their preference. The two groups were compared at baseline to investigate whether there were differences between the AHC and the CC patients that may help explain their choice of care. The patients were consecutively recruited over 2½ years. Sociodemographic and medical data, and the health-related quality of life (HRQL) of the two groups were compared. HRQL was assessed using a self-reporting questionnaire, including the European Organization for Research and Treatment of Cancer Core Quality of Life Questionnaire (EORTC QLQC30), the Impact of Event Scale (IES), five questions about social support, and two items concerning general well-being. The AHC group showed significantly poorer functioning on all the EORTC QLQ-C30 scales and an overall higher symptom burden than the CC patients. Fewer of the AHC patients were receiving cancer treatment. The AHC patients had lived longer with their cancer diagnosis, had a significantly shorter survival after study enrollment, and a significantly poorer performance status. The major differences between the two groups seemed to be related to being at different stages in their disease. The results indicate that patients are reluctant to accept home care until absolutely necessary due to severity of functioning impairments and symptom burden. These findings should be taken into consideration in planning palliative care services. J Pain Symptom Manage 2008;36:217e227. 2008 U.S. Cancer Pain Relief Committee. Published by Elsevier Inc. All rights reserved.
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| 5. |
- Andersson, Sofia, 1972-, et al.
(författare)
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Factors Associated With Symptom Relief in End-of-Life Care in Residential Care Homes: A National Register-Based Study
- 2018
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Ingår i: Journal of Pain and Symptom Management. - : Elsevier BV. - 0885-3924 .- 1873-6513. ; 55:5, s. 1304-1312
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Tidskriftsartikel (refereegranskat)abstract
- Context. Residential care homes (RCHs) are a common place of death. Previous studies have reported a high prevalence of symptoms such as pain and shortness of breath among residents in the last week of life.& para;& para;Objectives. The aim of the study was to explore the presence of symptoms and symptom relief and identify factors associated with symptom relief of pain, nausea, anxiety, and shortness of breath among RCH residents in end-of-life care.& para;& para;Methods. The data consisted of all expected deaths at RCHs registered in the Swedish Register of Palliative Care (N 22,855). Univariate and multiple logistic regression analyses were conducted.& para;& para;Results. Pain was reported as the most frequent symptom of the four symptoms (68.8%) and the one that most often had been totally relieved (84.7%) by care professionals. Factors associated with relief from at least one symptom were gender; age; time in the RCH; use of a validated pain or symptom assessment scale; documented end-of-life discussions with physicians for both the residents and family members; consultations with other units; diseases other than cancer as cause of death; presence of ulcers; assessment of oral health; and prescribed pro re nata injections for pain, nausea, and anxiety.& para;& para;Conclusion. Our results indicate that use of a validated pain assessment scale, assessment of oral health, and prescribed pro re nata injections for pain, nausea, and anxiety might offer a way to improve symptom relief. These clinical tools and medications should be implemented in the care of the dying in RCHs, and controlled trials should be undertaken to prove the effect. (C) 2017 American Academy of Hospice and Palliative Medicine. Published by Elsevier Inc. All rights reserved.
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| 6. |
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| 7. |
- Axelsson, Lena, et al.
(författare)
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Unmet Palliative Care Needs Among Patients With End-Stage Kidney Disease : A National Registry Study About the Last Week of Life
- 2018
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Ingår i: Journal of Pain and Symptom Management. - : Elsevier. - 0885-3924 .- 1873-6513. ; 55:2, s. 236-244
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Tidskriftsartikel (refereegranskat)abstract
- Context. End-stage kidney disease (ESKD) is characterized by high physical and psychological burden, and therefore, more knowledge about the palliative care provided close to death is needed. Objectives. To describe symptom prevalence, relief, and management during the last week of life, as well as end-of-life communication, in patients with ESKD. Methods. This study was based on data from the Swedish Register of Palliative Care. Patients aged 18 or older who died from a chronic kidney disease, with or without dialysis treatment (International Classification of Diseases, Tenth Revision, Sweden; N18.5 or N18.9), during 2011 and 2012 were selected. Results. About 472 patients were included. Of six predefined symptoms, pain was the most prevalent (69%), followed by respiratory secretion (46%), anxiety (41%), confusion (30%), shortness of breath (22%), and nausea (17%). Of patients with pain and/or anxiety, 32% and 44%, respectively, were only partly relieved or not relieved at all. Of patients with the other symptoms, a majority (55%-84%) were partly relieved or not relieved at all. End-of-life discussions were reported in 41% of patients and 71% of families. A minority died in specialized palliative care: 8% in hospice/inpatient palliative care and 5% in palliative home care. Of all patients, 19% died alone. Bereavement support was offered to 38% of families. Conclusion. Even if death is expected, most patients dying with ESKD had unmet palliative care needs regarding symptom management, advance care planning, and bereavement support. (C) 2017 American Academy of Hospice and Palliative Medicine. Published by Elsevier Inc. All rights reserved.
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| 8. |
- Bergh, Ingrid, 1956, et al.
(författare)
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Pain and its relation to cognitive function and depressive symptoms: a Swedish population study of 70-year-old men and women.
- 2003
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Ingår i: Journal of pain and symptom management. - : Elsevier. - 0885-3924 .- 1873-6513. ; 26:4, s. 903-12
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to investigate the prevalence of pain and its characteristics, and to examine the association of pain with cognitive function and depressive symptoms, in a representative sample of 70-year-old men and women. Data were collected within the gerontological and geriatric population studies in G?teborg, Sweden (H-70). A sample of 124 men and 117 women living in the community took part in the study. A questionnaire was applied which included four different aspects of pain experience: prevalence, frequency of episodes of pain, duration and number of locations. In close connection to this, depressive symptoms were assessed using the Center for Epidemiological Studies Depression Scale. The prevalence of pain during the last 14 days was higher in women (79%; n=91) than in men (53%; n=65) (P<0.001). Women (68%; n=78) also reported pain that had lasted for >6 months to a greater extent than men (38%; n=46) (P<0.001). The frequency of episodes of pain was also higher among women, 64% (n=74) reporting daily pain or pain several days during the last 14 days while 37% of the men (n=45) did so (P<0.001). Women (33%, n=38) also reported pain experience from >/=3 locations more often than men (11%; n=13) (P<0.001). On the other hand, the association between depressive symptoms and pain experience was more evident in men than in women. Women were taking significantly more antidepressants compared to men (P<0.03). The results show that pain is common in 70-year-old people and especially in women. However, associations between depressive symptoms and the four aspects of pain experience were more pronounced among men.
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| 10. |
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