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  • 9501. Ågård, A
    et al.
    Bentley, L
    Herlitz, Johan
    University of Borås, School of Health Science. [external].
    Experiences and concerns among patients being treated for atypical chest pain2005In: European journal of internal medicine, ISSN 0953-6205, E-ISSN 1879-0828, Vol. 16, no 5, p. 339-344Article in journal (Refereed)
    Abstract [en]

    Background Many patients who are discharged from the hospital without receiving a clear-cut diagnosis of their chest pain continue to consume health care because of disabling physical and psychological symptoms. By identifying their experiences and concerns following hospitalization, an empirical basis for discussions on ways of improving the care of these particular patients will be obtained. Methods A qualitative analysis of semi-structured interviews with 38 patients with a diagnosis of unspecified chest pain was carried out. Results Two-thirds of the respondents had unanswered questions and concerns that had not been addressed. They found it difficult to understand why they had not undergone more tests. They requested an explanation for their chest pain, at the very least, or were worried about the future. Some respondents accepted the fact that they had not been given a sufficient amount of time and information. They referred to the stressful working situation of the physicians, the view that their admission could be regarded as unnecessary or that physicians at the hospital could not be expected to do more than exclude serious diseases. Conclusions Health professionals should address their patients' questions and fears properly and provide them with the most probable explanation for their symptoms. When taking the harmlessness of their symptoms or the situation of their caregivers into account, patients may find it inappropriate to impose further demands on care.

  • 9502. Ågård, A
    et al.
    Herlitz, Johan
    University of Borås, School of Health Science.
    Castrén, M
    Jonsson, L
    Sandman, Lars
    University of Borås, School of Health Science.
    Guidance for ambulance personnel on decisions and situations related to out-of-hospital CPR2012In: Resuscitation, ISSN 0300-9572, E-ISSN 1873-1570, Vol. 81, no 1, p. 27-31Article in journal (Refereed)
    Abstract [en]

    Ethical guidelines on out-of-hospital cardio-pulmonary resuscitation (CPR) are designed to provide substantial guidance for the people who have to make decisions and deal with situations in the real world. The crucial question is whether it is possible to formulate practical guidelines that will make things somewhat easier for ambulance personnel. The aims of this article are to address the ethical aspects related to out-of-hospital CPR, primarily to decisions on not starting or terminating resuscitation attempts, using the views and experience of ambulance personnel as a starting point, and to summarise the key points in a practice guideline on the subject.

  • 9503. Ågård, A
    et al.
    Herlitz, Johan
    University of Borås, School of Health Science. [external].
    Hermerén, G
    Obtaining informed consent from patients in the early phase of acute myocardial infarction: physicians’ experiences and attitudes2004In: Heart, ISSN 1355-6037, E-ISSN 1468-201X, Vol. 90, no 2, p. 208-210Article in journal (Refereed)
    Abstract [en]

    It is possible to question whether patients suffering from the early phase of an acute myocardial infarction (AMI) are able to give free and informed consent and whether or not it is ethically defensible to include them—those patients suffering from more severe symptoms, in particular—in research projects. In fact, it has been shown that a reasonable number of patients who have given their consent in this situation are only able to recall very little of the information they received about the study and that only a minority read through the consent form before signing it. The aim of this study is to determine how physicians, who have been involved in including patients in intervention trials in the early phase of their AMIs, experienced the informed consent procedures. In our view, data obtained from those people who are actually confronted by the research subjects and who are responsible for carrying out the consent procedure should also be taken into account, when the most appropriate ways of including these patients in studies are discussed. To our knowledge no survey of physicians relating to this issue has previously been undertaken.

  • 9504. Ågård, A
    et al.
    Hermerén, G
    Herlitz, Johan
    [external].
    Informed consent: Are there ethically justified conditions for exceptions?2002In: Heart, ISSN 1355-6037, E-ISSN 1468-201X, Vol. 87, no 2, p. 105-106Article in journal (Other (popular science, discussion, etc.))
    Abstract [en]

    Are good clinical practice and informed consent inseparable? This depends, to some extent at least, on what is meant by “inseparable”. Does this refer to a logical relation, on the assumption that “good clinical practice” by definition includes informed consent, to an empirical generalisation about current medical practice, or a normative statement about how it ought to be? Different arguments pro and contra are relevant depending on whether the statement is interpreted as a logical statement, an empirical generalisation, or as a normative statement.We do not dispute the moral ground for the requirement of informed consent in general,1 and we agree with the statement that “the clinical duty to obtain proper informed consent is now widely believed to be an essential component of good clinical practice”. Neither do we dispute that improved training in communication skills and more time for doctors to communicate with their patients would be a good thing—and probably make more patients participate in the decision process.2What we wished to do in our paper3 was to discuss whether there might not be situations in which exceptions from the general requirement of informed consent would be acceptable. We hope that such a debate could help to define stringent and precise conditions when such exceptions could be morally and legally acceptable. One general assumption we share is the idea that such an exception is reasonable, if insisting on the requirement of informed consent causes more harm than good. In its turn, this presupposes a discussion of criteria of harm and benefit and who should decide about the relative magnitude of harm and benefit. Verification after the event by the patients in question could in certain situations be worth investigating. If there is a verification by the patients concerned, in the sense that they afterwards confirm that they think that an exception from the general requirement was ethically justified, then the concept of an exception from the general main rule is supported by referring to what the patients themselves want. If autonomy is taken seriously, references to what the patients say they want cannot be dismissed lightly.Our ambition with the study published3 was not to suggest any radical changes regarding the informed consent procedure when a patient is suffering from an acute myocardial infarction and is a potential research subject, nor to draw any general conclusions from the results obtained. Instead, we wanted to elucidate the possible problems and disadvantages associated with the process of obtaining informed consent in this particular situation. Primarily we wanted to stimulate the debate on the following two issues:1. Does a patient in the midst of a life crisis have to put his/her signature on a consent form in order to be included in an intervention trial?2. Are there ethically justified alternatives to informed consent when a researcher wants to include a patient in a study, who is not capable of giving a free and informed consent in research?We stated: “All possible measures to increase the autonomy of the patients under the prevailing circumstances should be carried out”. Thus, we do not suggest that all patients with acute myocardial infarction should be treated as incompetent. However, what we have tried to do in our study is to bring forth and highlight empirical evidence, which seems to show that in this particular situation some patients do not have the capacity to give a true informed consent for study participation.Professor Doyal adds another argument, to the effect that even if the patients afterwards do not remember anything, this does not reduce the moral importance of relevant information disclosure. The main question is what is meant by “relevant information disclosure”, and who decides what this is. Suppose (a) that it is left to the patient to decide what is relevant information disclosure, (b) that additional information does not change the decision of the patient, and (c) they do not want this additional information, which conclusion should be drawn from this?We claim that it is time to adjust the informed consent procedure to the patients' capacity in this particular situation. Moreover, the patient should be spared the “actual demand” of signing the consent form in the early phase of an acute myocardial infarction.

  • 9505. Ågård, A
    et al.
    Hermerén, G
    Herlitz, Johan
    [external].
    Patients' experiences of intervention trials treatment of myocardial infarction: is it time to adjust the informed consent procedure to the patient's capacity?2001In: Heart, ISSN 1355-6037, E-ISSN 1468-201X, Vol. 86, no 6, p. 632-637Article in journal (Refereed)
    Abstract [en]

    OBJECTIVE—To investigate how patients included in trials on treatment in the early phase of acute myocardial infarction experience the consent procedure. DESIGN—A combined qualitative and quantitative interview concerning the patients' knowledge of the trial, their feelings about being asked to participate, and their attitudes towards the consent procedure. SETTING—Tertiary referral centre. PATIENTS—31 patients who had given written informed consent for their participation in randomised intervention trials of acute myocardial infarction. RESULTS—The patients interviewed had only fragmentary knowledge about the trial they were involved in. Most considered that reading and signing a consent form was an unwanted or unnecessary procedure. Instead, they would have preferred to have been given concise verbal information about the study. Most were willing to allow a physician to decide for them in the event of their being too ill to be asked about their participation. CONCLUSIONS—Patients who are asked to participate in intervention trials in the early phase of acute myocardial infarction often appear to lack sufficient knowledge to reach an autonomous choice. There were problems and disadvantages associated with the process of obtaining written informed consent in this particular situation, especially regarding the need for the patient to sign a consent form during the acute phase of the disease.

  • 9506. Ågård, A
    et al.
    Hermerén, G
    Herlitz, Johan
    [external].
    Should cardiopulmonary resuscitation be performed on patients with congestive heart failure? The role of the patient in the decision-making process2000In: Journal of Internal Medicine, ISSN 0954-6820, E-ISSN 1365-2796, Vol. 248, no 4, p. 279-286Article in journal (Refereed)
    Abstract [en]

    OBJECTIVES: There is an ongoing debate about patients' involvement in the decision of whether or not to start, cardiopulmonary resuscitation (CPR) in the case of cardiac arrest. The objective here is to analyse on what grounds patients with heart failure, who run a relatively high risk of suffering cardiac arrest, form their attitudes towards CPR and to what extent they want to be involved in making decisions concerning CPR. DESIGN: This study employs a combined qualitative and quantitative interview concerning patients' knowledge about CPR, their experiences and preferences regarding involvement in making decisions concerning CPR, and their willingness to undergo CPR. SETTING: The study was performed at the Department of Cardiology, Sahlgrens University Hospital, Gothenburg. SUBJECTS: The subjects involved were 40 patients with various stages of chronic heart failure. RESULTS: Many of the interviewees lacked fundamental knowledge of CPR. The majority of the patients opted for CPR no matter how small their chances of survival were. The issue had not earlier engaged their thoughts, even less been discussed with physicians. The patients relied on the physician's ability to judge if CPR was to be regarded as a potentially beneficial intervention or as an unmotivated one. Nevertheless, the patients welcomed the opportunity to take part in the decision-making process. CONCLUSION: In order to make ethically justified decisions, physicians should consider bringing up the question of CPR with patients suffering from heart failure at the point in time where the progressive disease gives rise to more severe symptoms, corresponding to NYHA classes IIIb-IV. In earlier stages of the disease, one can assume that the patient will opt for CPR unless he or she demonstrates a negative attitude towards life.

  • 9507. Ågård, A
    et al.
    Hermerén, G
    Herlitz, Johan
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    When is a patient with heart failure adequately informed? A study of patients' knowledge of and attitudes toward medical information2004In: Heart & Lung, ISSN 0147-9563, E-ISSN 1527-3288, Vol. 33, no 4, p. 219-226Article in journal (Refereed)
    Abstract [en]

    OBJECTIVE: The primary aim was to explore patients' knowledge of heart failure and their attitudes toward medical information (prognostic information in particular) and to assess different patient-related factors that might hamper the improvement of patients' knowledge. Moreover, taking the data obtained into account, we analyzed ethical aspects of information disclosure to patients with heart failure. SETTING: The study was performed at Sahlgren's University Hospital in Gothenburg, Sweden. DESIGN: The study was a qualitative analysis of semistructured interviews. PATIENTS: The sample included 40 patients with various stages of chronic heart failure. RESULTS: Many patients had only a limited understanding of their disease, but they still claimed that they were satisfied with the information they received. Some of them seemed to accept, to be indifferent to, or to be unaware of their low level of knowledge. The majority did not request prognostic information. CONCLUSION: We argue that patients with heart failure are adequately informed when they have reached the level of knowledge that enables them to be managed as effectively and securely as possible while being satisfied with the information provided. To give adequate information, health care providers should determine the patients' level of knowledge and explore why those patients who have a limited understanding do not assimilate or request information.

  • 9508.
    Ågård, Anders
    et al.
    Sahlgrenska University Hospital.
    Bremer, Anders
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    Sallin, Karl
    Uppsala University.
    Engström, Ingemar
    Örebro University.
    Ethical controversies when formulating new national guidelines on cardiopulmonary resuscitation in Sweden2017In: Clinical Ethics, ISSN 1477-7509, E-ISSN 1758-101XArticle in journal (Refereed)
    Abstract [en]

    The Delegation for Medical Ethics within the Swedish Society of Medicine has taken the initiative to create national ethical guidelines on cardiopulmonary resuscitation. The reasons behind this initiative were indications of differences in the way decisions about cardiopulmonary resuscitation were made and documented and requests expressed by health- care professionals for new national ethical guidelines. During the process of creating the guidelines, a number of work- shops were held with representatives from the delegation and clinical experts from various branches of medicine. Several versions of the working document were sent to consultation bodies with requests for comments. We therefore believe that the final guidelines are well supported by the medical profession in Sweden. The purpose of this article is to present ethical issues on which it was difficult to reach consensus due to divergent opinions expressed by the people and organisations involved. The arguments for and against a particular point of view or wording in the text are presented. The main controversies were related to the following six issues; Determining whether or not cardiopulmonary resus- citation is beneficial for the patient – The presence of close loved ones during cardiopulmonary resuscitation – Performing cardiopulmonary resuscitation for the benefit of people other than the patient – Ambulance personnel’s mandate to decide not to initiate and to terminate cardiopulmonary resuscitation outside hospital – Limiting the length and content of cardiopulmonary resuscitation – Whether or not to specify a week of gestation before which cardio- pulmonary resuscitation should not be started. 

  • 9509.
    Åhlström, Linda
    et al.
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    Dellve, Lotta
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare. 1KTH – Royal Institute of Technology, School of Technology and Health, Stockholm, Sweden.
    Implementation of lean and the 3-year-trends of sick-leave among health care workers in different hospital care context2015Conference paper (Refereed)
  • 9510.
    Åkerfeldt, Maria
    University of Borås, Faculty of Textiles, Engineering and Business.
    Electrically conductive textile coatings with PEDOT:PSS2015Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    In smart textiles, electrical conductivity is often required for several functions, especially contacting (electroding) and interconnecting. This thesis explores electrically conductive textile surfaces made by combining conventional textile coating methods with the intrinsically conductive polymer complex poly(3,4-ethylene dioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS).

    PEDOT:PSS was used in textile coating formulations including polymer binder, ethylene glycol (EG) and rheology modifier. Shear viscometry was used to identify suitable viscosities of the formulations for each coating method. The coating methods were knife coating, pad coating and screen printing. The first part of the work studied the influence of composition of the coating formulation, the amount of coating and the film formation process on the surface resistivity and the surface appearance of knife-coated textiles. The electrical resistivity was largely affected by the amount of PEDOT:PSS in the coating and indicated percolation behaviour within the system. Addition of a high-boiling solvent, i.e. EG, decreased the surface resistivity with more than four orders of magnitude. Studies of tear strength and bending rigidity showed that textiles coated with formulations containing larger amounts of PEDOT:PSS and EG were softer, more ductile and stronger than those coated with formulations containing more binder. The coated textiles were found to be durable to abrasion and cyclic strain, as well as quite resilient to the harsh treatment of shear flexing. Washing increased the surface resistivity, but the samples remained conductive after five wash cycles.

    The second part of the work focused on using the coatings to transfer the voltage signal from piezoelectric textile fibres; the coatings were first applied using pad coating as the outer electrode on a woven sensor and then as screen-printed interconnections in a sensing glove based on stretchy, warp-knitted fabric. Sensor data from the glove was successfully used as input to a microcontroller running a robot gripper. These applications showed the viability of the concept and that the coatings could be made very flexible and integrated into the textile garment without substantial loss of the textile characteristics. The industrial feasibility of the approach was also verified through the variations of coating methods.

  • 9511.
    Åkerfeldt, Maria
    University of Borås, Swedish School of Textiles.
    Studies of electrically conductive textile coatings with PEDOT:PSS2012Licentiate thesis, monograph (Other academic)
    Abstract [en]

    This study investigates electrically conductive coatings of textiles, obtained with a direct coating and the addition of poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS) dispersion to a thickened polyurethane (PU)-based formulation. Textiles with enhanced electrical conductivity have potential applications in antistatic, electrostatic discharge protective, electromagnetic interference shielding, sensoric and temperature-regulating products. The composition of the coating formulation will have a large impact on the obtained coated textiles. Firstly, the amount solids (polymer content) of the components will affect the shear viscosity which is amongst other important for the level of penetration of the coating. In this work, different coating formulations have been studied with steady state shear viscometry. It was found that the viscosity during knife coating to a large extent could be controlled by the addition of a hydrophobically modified ethoxylated urethane (HEUR) rheology modifier. Secondly, the level of conductivity will depend on the amount conductive material, in this case PEDOT:PSS, that is present in the coating, indicating percolation behaviour of the system. Conductivity was evaluated with two-point and four-point surface resistivity measurements. Addition of a high-boiling solvent, i.e. ethylene glycol, was however imperative for low surface resistivity. Thirdly, tear strength measurements, performed with the dynamic pendulum method, and investigations of bending rigidity, with the Kawabata evaluation system for fabrics, KES-F-2, showed that samples coated with formulations containing larger amounts of PEDOT:PSS and ethylene glycol were significantly softer and more ductile than samples coated with formulations containing more binder. A decrease in surface resistivity could also be obtained by increasing the amount deposited coating on the substrate. This decrease was however counteracted by the concurrent increase of insulating binder polymers in the coating. The increased coating deposit resulted in stiffer samples with lower tear strength due to increased brittleness. The influence of kinetics during film formation on the surface resistivity was also studied but was found to be close to insignificant. Abrasion resistance was investigated for all samples with a modified Martindale method and the samples showed less impact from this than expected.

  • 9512.
    Åkerfeldt, Maria
    University of Borås, Swedish School of Textiles.
    The influence of ethylene glycol on the properties of electrically conductive textile coatings obtained with PEDOT:PSS2013Conference paper (Refereed)
    Abstract [en]

    Ethylene glycol (EG) is known as a conductivity-enhancer of films made of poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS), a degrading agent of polyethylene terephtalate (PET) and a plasticizer of latex. The influence of ethylene glycol (EG) on PET-textiles coated with polyurethane (PU) and PEDOT:PSS dispersions was therefore studied with respect to surface resistivity as a means to appreciate conductivity, and tear and tensile strength to appreciate the mechanical properties. Samples of the PET substrate were also immersed in a 20 w/w-% EG solution and Fourier transform infrared spectroscopy (FTIR) was used to detect any PET degradation. The resistivity dropped with three orders of magnitude with 10 % EG of PEDOT:PSS dispersion, i.e. 6 wt-% of the entire coating formulation. The addition of EG did not affect the tear and tensile strength of the coated samples, nor did subjection to EG-solution have a degrading effect on the PET substrate, indicating that EG does not deteriorate the coated textile.

  • 9513.
    Åkerfeldt, Maria
    University of Borås, Swedish School of Textiles.
    Towards screen-printed electronics for smart textile applications with PEDOT:PSS2014Conference paper (Refereed)
  • 9514.
    Åkerfeldt, Maria
    et al.
    University of Borås, Faculty of Textiles, Engineering and Business. Swerea IVF AB, Materials department, Mölndal, Sweden.
    Lund, Anja
    University of Borås, Faculty of Textiles, Engineering and Business.
    Walkenström, Pernilla
    Swerea IVF AB, Materials department, Mölndal, Sweden.
    Textile sensing glove with piezoelectric PVDF fibers and printed electrodes of PEDOT:PSS2015In: Textile research journal, ISSN 0040-5175, E-ISSN 1746-7748, Vol. 85, no 17, p. 1789-1799Article in journal (Refereed)
  • 9515.
    Åkerfeldt, Maria
    et al.
    University of Borås, Swedish School of Textiles.
    Nilsson, Erik
    Gillgard, Philip
    Walkenström, Pernilla
    University of Borås, Swedish School of Textiles.
    Textile piezoelectric sensors: melt spun bi-component poly(vinylidene fluoride) fibres with conductive cores and poly(3,4-ethylene dioxythiophene)-poly(styrene sulfonate) coating as the outer electrode2014In: Fashion and Textiles, ISSN 2198-0802, Vol. 1, no 13Article in journal (Refereed)
    Abstract [en]

    The work presented here addresses the outer electroding of a fully textile piezoelectric strain sensor, consisting of bi-component fibre yarns of β-crystalline poly(vinylidene fluoride) (PVDF) sheath and conductive high density polyethylene (HDPE)/carbon black (CB) core as insertions in a woven textile, with conductive poly(3,4-ethylene dioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS) coatings developed for textile applications. Two coatings, one with a polyurethane binder and one without, were compared for the application and evaluated as electrode material in piezoelectric testing, as well as tested for surface resistivity, tear strength, abrasion resistance and shear flexing. Both coatings served their function as the outer electrodes in the system and no difference in this regard was detected between them. Omission of the binder resulted in a surface resistivity one order of magnitude less, of 12.3 Ω/square, but the surface resistivity of these samples increased more upon abrasion than the samples coated with binder. The tear strength of the textile coated with binder decreased with one third compared to the uncoated substrate, whereas the tear strength of the coated textile without binder increased with the same amount. Surface resistivity measurements and scanning electron microscopy (SEM) images of the samples subjected to shear flexing showed that the coatings without the binder did not withstand this treatment, and that the samples with the binder managed this to a greater extent. In summary, both of the PEDOT:PSS coatings could be used as outer electrodes of the piezoelectric fibres, but inclusion of binder was found necessary for the durability of the coating.

  • 9516.
    Åkerfeldt, Maria
    et al.
    University of Borås, Swedish School of Textiles.
    Strååt, Martin
    A Rheological Study of a Textile Coating Paste containing PEDOT:PSS2011Conference paper (Other academic)
    Abstract [en]

    A conductive coating paste suitable for knife coating of textiles can be obtained with PEDOT:PSS, a polyurethane based binder, ethylene glycol and a rheology modifier. The influence of each component, as well as combinatory effects, has been studied with shear viscometry. Indicated associative interactions between the components are discussed.

  • 9517.
    Åkerfeldt, Maria
    et al.
    University of Borås, Swedish School of Textiles.
    Strååt, Martin
    Walkenström, Pernilla
    University of Borås, Swedish School of Textiles.
    Electrically conductive textile coating with a PEDOT-PSS dispersion and a polyurethane binder2013In: Textile research journal, ISSN 0040-5175, E-ISSN 1746-7748, Vol. 83, no 6, p. 618-627Article in journal (Refereed)
    Abstract [en]

    Electrically conductive textile coatings have been prepared by the addition of a dispersion of poly(3,4-ethylenedioxy thiophene)-polystyrene sulfonate (PEDOT-PSS) and ethylene glycol to a polyurethane-based coating formulation. The formulations were designed to have similar viscosities, measured with a rheometer using a cone-and-plate set-up. The formulations were applied to woven poly(ethylene) terephthalate substrates using a direct coating method. The concentration PEDOT-PSS in the finished coatings varied between 0.7 and 6.2 wt%, the coating deposit between 19 and 155 g/m2 and the drying procedure between 4 hours at 20 C and 10 minutes at 150 C. Surface resistivity was measured with a ring probe and surface topology was addressed with scanning electron microscopy (SEM). The PEDOT-PSS concentration had a large effect on the resistivity, which dropped by five orders of magnitude with an increased concentration. The steepest decrease occurred between 1 and 3 wt% PEDOT-PSS, indicating a percolation threshold. An increased coating deposit resulted in a resistivity drop by a factor 10, but no significant effect on the resistivity of the samples could be ascertained by variation of the drying conditions when samples had been subjected to subsequent annealing.

  • 9518.
    Åkerfeldt, Maria
    et al.
    University of Borås, Swedish School of Textiles.
    Strååt, Martin
    Walkenström, Pernilla
    University of Borås, Swedish School of Textiles.
    Influence of coating parameters on textile and electrical properties of a poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate)/polyurethane-coated textile2013In: Textile research journal, ISSN 0040-5175, E-ISSN 1746-7748, Vol. 83, no 20, p. 1-13Article in journal (Refereed)
    Abstract [en]

    Textile coatings with electrical conductivity were obtained by the addition of poly(3,4-ethylene dioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS) and ethylene glycol (EG) to a polyurethane (PU)-based coating formulation. Variations of the coating formulation, the coating amount and the drying conditions, as well as the absence of an annealing step, were investigated. The coated fabrics were evaluated for tear strength and bending rigidity as well as surface resistivity and appearance before and after Martindale abrasion. A high proportion of PEDOT:PSS dispersion in the formulation and the presence of EG provided low surface resistivity. This composition resulted in softer samples with higher tear strength than those containing more PU-binder. All coatings proved to withstand abrasion to a similar extent. The surface resistivity increased gradually with the abrasion, about one half order of magnitude, except for those coatings that had been subjected to a faster drying process, where the surface resistivity increased somewhat faster.

  • 9519.
    Åkesson, Dan
    University of Borås, Faculty of Textiles, Engineering and Business.
    Mekanisk återvinning av biopolymerer och deras blandningar och kompositer2015Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    Mekanisk återvinning av biopolymerer och deras blandningar och kompositer

    Biopolymerer blir allt vanligare på marknaden. Det är därför viktigt att utveckla återvinningssystem för att ta hand om dessa nya plaster. I ett pågående projekt, ’Hållbar återvinning av ”gröna” plaster och industriellt avfall’ studeras mekanisk återvinning av bioplaster. Återvinning av polymjölksyra (PLA) samt blandningar och kompositer av PLA har studerats genom upprepad bearbetning. Delar av dessa resultat kommer att presenteras.

  • 9520.
    Åkesson, Dan
    University of Borås, Faculty of Textiles, Engineering and Business.
    Mekanisk återvinning av PLA förstärkt med cellulosafibrer2015Other (Other (popular science, discussion, etc.))
  • 9521.
    Åkesson, Dan
    University of Borås, School of Engineering.
    Preparation and Characterization of UV-cured Nano Reinforced Biobased Coatings2011Conference paper (Other academic)
    Abstract [en]

    Polymers are typically produced from crude oil which is a non-renewable resource. With the fast depletion of the petroleum resources, the development of materials based on renewable resources is becoming important. Polymers prepared from renewable resources are under development, but has mainly focused on thermoplastic polymers such as polylactic acid. For some applications, such as composites and coatings, thermoset polymers are often preferred. Consequently, it is important to develop thermoset resins from renewable resources as well. Plant oils, such as soybean oil and linseed oil, have been utilized by mankind for a long time. Soybean oil is produced in large quantities and soybean oil is an excellent starting material for the synthesis of thermoset resins. A possible strategy to prepare thermoset resins from plant oils is to introduce pendant methacrylate groups in the structure. Thus, the resins can be cured by a free radical polymerization. Such a resin is very susceptible to photopolymerization when exposed to ultraviolet (UV) radiation, which is a common technique to cure coatings. In the present study, three different thermoset resins were studied. Two of the resins were based on soybean oil while the third resin was based on lactic acid. The latter resin was prepared by a direct condensation of lactic acid and pentaerythritol and was finally end-capped with methacrylate groups. Several authors have studied the addition of nano-reinforcements to thermoset resins. One of the most promising nano-reinforcements is layered silicate which has shown to improve several properties. Layered silicate has been used to reinforce conventional resins with good results. The addition of layered silicates to the biobased resins can be used to improve the properties and to broaden the applications. The resins used in this study were therefore reinforced with layered silicate and UV-cured. The cured resins were characterized by Soxhlet extraction, photo-FTIR, DMTA and tensile tests which will be presented during the presentation.

  • 9522.
    Åkesson, Dan
    University of Borås, School of Engineering.
    Renewable composites prepared from biobased thermoset resins2009Doctoral thesis, monograph (Other academic)
    Abstract [en]

    In our efforts to create a more sustainable society, several researchers have tried to prepare composites from renewable materials in recent years. The use of natural fibres for reinforcement of composites has been relatively well studied. To date, most studies of natural fibre-reinforced composites have either involved the use of conventional thermoset resins or thermoplastic biopolymers. While there are currently several thermoplastic polymers on the market that are produced from renewable resources, thermosets are inevitably produced from petroleum resources. The development of biobased thermoset resins is therefore of considerable importance. Such resins could be used in future for composite applications, for coating applications or in adhesives. This thesis describes the development of biobased thermoset resins for composite applications. Thermoset resins were synthesised from both epoxidised soybean oils as well as from lactic acid. These resins have been characterised neat as well as together with various reinforcements. The main objective has been to study these biobased resins together with natural fibres for reinforcement, though to some extent nano-reinforcements and glass fibres have also been used as reinforcements. Natural fibre-reinforced composites were prepared from several different biobased thermoset resins. Resins based on soybean oil as well as a resin based on lactic acid were evaluated. The soybean resins were prepared by introducing acrylate or methacrylate groups into the molecules of soybean oil. The second type of thermoset resin used was based on lactic acid. This resin consists of star-shaped methacrylated oligomers of lactic acid. Natural fibres were impregnated by several impregnation techniques. Composites were prepared from the biobased resins together with various natural fibres, such as flax and hemp fibres. The resulting composites were evaluated by tensile testing, flexural testing, impact testing, DMTA and SEM. The results show that composites prepared from biobased resin have relatively good mechanical properties and can be used for indoor applications such as furniture and construction elements.

  • 9523.
    Åkesson, Dan
    et al.
    University of Borås, Faculty of Textiles, Engineering and Business.
    Bourmaud, Alain
    Beaugrand, Johnny
    Le Duigou, Antoine
    Skrifvars, Mikael
    University of Borås, Faculty of Textiles, Engineering and Business.
    Baley, Christophe
    Recycling of L-Poly-(lactide)-Poly-(butylene-succinate)-flax biocomposite2016In: Polymer degradation and stability, ISSN 0141-3910, E-ISSN 1873-2321, Vol. 128, p. 77-88Article in journal (Refereed)
    Abstract [en]

    The development of new plant fibre composites is a key point in the development of semi-structural biodegradable or biobased parts, especially for automotive applications. The aim of this original and innovating work is to study, at different scales, the recycling ability of a fully biodegradable L-Poly-(lactide)-Poly-(butylene-succinate)-flax (PLLA-PBS-flax) biocomposite. The biocomposites were manufactured by twin-screw extrusion followed by injection moulding, then the recycling behaviour was studied during successive injection moulding cycles. Firstly, we investigated the length of the flax fibre after compounding and injection, as well as the cell wall stiffness and hardness, by in-situ nanoindentation tests. Secondly, we focused on the effects of recycling on thermal, rheological and tensile properties. We highlighted a severe evolution of the cell wall properties, especially concerning the polysaccharidic matrix after the first thermal cycle, nanoindentation properties remaining quasi-stable after this first drop. Furthermore, the biocomposites did not show any significant evolution of their mechanical performances during cycle three or four of the first injection cycles; after this plateau, the tensile strength and strain as well as impact energy were significantly altered due to the conjugated fibre length decrease and degradation of the PLLA, the latter being emphasized when the flax fibre is embedded. Nevertheless, this fully biodegradable composite exhibits a suitable recycling behaviour for 3 or 4 cycles, which is sufficient for industrial applications.

  • 9524.
    Åkesson, Dan
    et al.
    University of Borås, Faculty of Textiles, Engineering and Business.
    Fazelinejad, Samaneh
    Skrifvars, Ville-Viktor
    University of Borås, Faculty of Textiles, Engineering and Business.
    Skrifvars, Mikael
    University of Borås, Faculty of Textiles, Engineering and Business.
    Mechanical recycling of polylactic acid composites reinforced with wood fibres by multiple extrusion and hydrothermal ageing2016In: Journal of reinforced plastics and composites (Print), ISSN 0731-6844, E-ISSN 1530-7964, Vol. 35, no 16, p. 1248-1259Article in journal (Refereed)
  • 9525.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Foltynowicz, Zenon
    Christeen, Jonas
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Products obtained from decomposition of glass fiber-reinforced composites using microwave pyrolysis2013In: Polimery, ISSN 0032-2725, Vol. 58, no 7-8, p. 582-586Article in journal (Refereed)
    Abstract [en]

    The possibility to obtain useful products from used glass fiber-reinforced composites using microwave pyrolysis were examined. A scrap of blade from a wind turbine was fragmented and microwave-pyrolysed. The oil and gas formed during the pyrolysis were characterized by gas chromatography-mass spectrometry (GC-MS). The oil from pyrolysis consisted mainly of various aromatic compounds and had an energy content of about 36 MJ/kg. The main component of the gaseous products was methane. The glass fiber recovered after pyrolysis represented 70 % of the initial mass of glass fiber-reinforced plastic.

  • 9526.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Foltynowicz, Zenon
    Christéen, Jonas
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Microwave pyrolysis as a method of recycling glass fibre from used blades of wind turbines2012In: Journal of reinforced plastics and composites (Print), ISSN 0731-6844, E-ISSN 1530-7964, Vol. 31, no 17, p. 1136-1142Article in journal (Refereed)
    Abstract [en]

    The possibility of recycling glass fibre-reinforced composites by using microwave pyrolysis was examined. A scrap blade from a wind turbine was fragmented and microwave-pyrolysed. The glass fibre recovered after pyrolysis represented 70% of the initial mass of glass fibre-reinforced composites. The tensile strength of the glass fibre recovered was measured after pyrolysis and compared to the tensile strength of untreated glass fibre. The test showed that the fibres lost about 25% of their tenacity. Non-woven fibre mats were prepared from the recovered fibres. Laminates were then prepared from the non-woven mats obtained, together with virgin glass fibre mats. Mechanical testing of the laminates showed that it is possible to prepare composites using 25 wt% of recycled fibres, with relatively good mechanical properties.

  • 9527.
    Åkesson, Dan
    et al.
    University of Borås, Faculty of Textiles, Engineering and Business.
    Fuchs, Torsten
    Stöss, Michael
    Root, Andrew
    MagSol, Helsinki, Finland.
    Stenvall, Erik
    Chalmers tekniska högskola.
    Skrifvars, Mikael
    University of Borås, Faculty of Textiles, Engineering and Business.
    Recycling of wood fiber-reinforced HDPE by multiple reprocessing2016In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 133, no 35Article in journal (Refereed)
    Abstract [en]

    The mechanical recycling of high-density polyethylene (HDPE) reinforced with wood fiber was studied by means of repeated injection moulding. The change in properties during the recycling was monitored by tensile and flexural tests, Charpy impact tests, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), FTIR spectroscopy, and by measuring the fiber lengths. Tests were also done where injection moulding was combined with subsequent accelerated thermo-oxidative ageing and thereafter repeated numerous times. The results showed that the HDPE composites were relatively stable toward both the ageing conditions and the repeated injection moulding. The change of the mechanical properties was mainly observed as an increased elongation at max. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43877. © 2016 Wiley Periodicals, Inc.

  • 9528.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Khrishnamoorthi, Ramesh
    Foltynowicz, Zenon
    Christeen, Jonas
    Kalantar Mehrjerdi, Adib
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Glass Fibres Recovered by Microwave Pyrolysis as a Reinforcement for Polypropylene2013In: Polymers & polymer composites, ISSN 0967-3911, E-ISSN 1478-2391, Vol. 21, no 6, p. 333-339Article in journal (Refereed)
    Abstract [en]

    Glass fibre composites were recycled by microwave pyrolysis. The glass fibres recovered were evaluated as a reinforcement agent for polypropylene (PP). Samples were prepared with a micro-compounder and the resulting compounds were evaluated with tensile testing, flexural testing, Charpy impact testing and scanning electron microscopy (SEM). The adhesion between fibre and glass was relatively poor, and an attempt was made to improve it. Various coupling agents were evaluated, in addition to the use of maleic anhydride-grafted PP (MA-PP). Tests showed that MA-PP had a relatively strong effect on the mechanical properties.

  • 9529.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Development of lactic acid and soy bean oil based thermoset resins and their natural fibre composites2007Conference paper (Refereed)
  • 9530.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Mechanical recycling of polylactic acid reinforced with cellulose fibres2014Conference paper (Refereed)
    Abstract [en]

    The increased environmental awareness has drawn researchers’ attention to bio-based polymers and several polymers such as polylactic acid (PLA), Mater-bi and polyhydroxyalkanoates (PHA) have been studied extensively. It is not easy to replace conventional petro-based polymers and it is therefore likely that both petro- and bio-based polymers will coexists for a long time. The usage of bio-based polymers is however growing and this may have implications for the plastic recycling industry. The recycling of petro-based polymers is relatively well studied and, where it is cost effective, conventional, petro-based polymers are being recycled in the industry. However, the recycling of bio-based plastics and composites needs to be studied more in detail. While several bio-based polymers can be biologically degraded, it is of interest to study the mechanical recycling of these polymers. In order to minimize the energy usage and the consumption of renewable materials mechanical recycling can be a good option. PLA is an attractive polymer as it is both biodegradable and prepared from renewable materials. This polymer has received a lot of attention and several reviews have been written. Research has shown that neat PLA can be reprocessed several times without significant loss of mechanical properties. Biocomposites based on PLA reinforced with natural fibres have been studied extensively in the literature and there can be many industrial applications of these biocomposites, such as automotive components and materials for construction applications. However, the mechanical recycling of biocomposites is not well studied. Most studies in the literature concerns the recycling of polymers reinforced with wood flour. DuraPulp is a commercial quality consisting PLA fibres mixed with cellulose fibres. This biocomposite material can be processed with for example compression moulding. Adding cellulose fibres to the polymer matrix may significantly change how the material can be recycled. The purpose of this study was to study the mechanical recycling of this material. Sheets were first prepared from Durapulp. The sheets were then compression moulded, grinded and reprocessed again with compression moulding. The mechanical and thermal properties were characterized after each cycle. The feasibility to recycle Durapulp mechanically will be discussed.

  • 9531.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Recycling of glass fibre reinforce plastics using microwave pyrolysis2012Conference paper (Other academic)
  • 9532.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Recycling of thermoset composites by microwave pyrolysis2011Conference paper (Other academic)
    Abstract [en]

    A scrap blade from a wind turbine was microwave pyrolysed. The recovered glass fibres were characterised by SEM and TGA. The possibility to use the fibres to prepare new composites were evaluated. Laminates were prepared where fibres mats with virgin and recovered glass fibres were altered. Mechanical testing showed that it is possible to prepapare composite with up to 35 wt.-% recovered fibre without losing too much of the mechanical properties.

  • 9533.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Technical Development of Biobased Thermoset REsins and Composites2007Conference paper (Other academic)
  • 9534.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Thermoset composites based on polylactic acid2008Conference paper (Refereed)
  • 9535.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Hagström, Bengt
    Walkenström, Pernilla
    University of Borås, Swedish School of Textiles.
    Seppälä, Jukka
    Processing of Structural Composites from Biobased Thermoset Resins and Natural Fibres by Compression Moulding2008In: Journal of Biobased Materials and Bioenergy, ISSN 1556-6560, E-ISSN 1556-6579, Vol. 3, no 3, p. 215-225Article in journal (Refereed)
    Abstract [en]

    With the aim of producing composites from renewable materials for the furniture industry, a number of thermoset prepregs were manufactured and evaluated. The applicability of two different biobased thermoset resins was evaluated. The first resin is based on soybean oil and the second on lactic acid. Both resins are cross-linkable and produced from renewable resources. Prepregs were manufactured from the two resins together with natural fibres (flax and cellulose). Furthermore, sheet moulding compound (SMC) was developed from lactic acid based resin together with glass fibre. Seat shells were produced from the prepregs by compression moulding. Curing of the composites was monitored using a response surface methodology. Further, the fibre ratio, mechanical properties as well as adhesion between the matrix and the fibre were evaluated. These prepregs offers short cycle times and yield products with suitable mechanical properties. Issues related to the preparation and the processing of the prepregs are discussed in the article.

  • 9536.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Seppälä, J.
    Turunen, M.
    Martinelli, M.
    Matic, A.
    Synthesis and characterization of a lactic acid-based thermoset resin suitable for structural composites and coatings2009In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 115, no 1, p. 480-486Article in journal (Refereed)
    Abstract [en]

    A new biobased polyester resin was developed for thermoset composite applications. The resin is potentially inexpensive and can be produced industrially by relatively simple means. The resin consists of star-shaped methacrylated oligomers of lactic acid (LA). LA oligomers were synthesized in a two-step process: in the first step, oligomers of LA were polymerized by direct condensation of LA. In the second step, the oligomers were end-functionalized by methacrylic anhydride. The resin was characterized by differential scanning calorimetry, Raman spectroscopy, NMR, rubber process analyzer, and TOF-SIMS. Tests show that the resin can be crosslinked into a rigid network within a couple of minutes upon thermal initiation. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 115: 480-486, 2010

  • 9537.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Seppälä, Jukka
    Turunen, Minna
    Thermoset lactic acid-based resin as a matrix for flax fibers2010In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 119, no 5, p. 3004-3009Article in journal (Refereed)
    Abstract [en]

    Abstract Thermoset composites were produced from flax fibers and a novel lactic acid (LA)-based thermoset resin. This resin is based on methacrylated, star-shaped oligomers of LA. The main purpose of this work was to evaluate whether this resin can be used to produce structural composites from flax fibers. Composites were prepared by spray impregnation followed by compression molding at elevated temperature. The tests showed that composites can be produced with as much as 70 wt% fiber. The composites were evaluated by tensile testing, flexural testing, charpy impact test, dynamic mechanical thermal analysis (DMTA), and low-vacuum scanning electron microscopy. The ageing properties in high humid conditions were evaluated, the Young's modulus ranged from 3 GPa to 9 GPa in the best case. This work shows that structural composites can be produced from renewable material. It is clear from the results that these composites have properties that make them suitable for furniture, panels, or automotive parts.

  • 9538.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Seppälä, Jukka V.
    Walkenström, Pernilla
    University of Borås, Swedish School of Textiles.
    Preparation of Natural Fibre Composites from Biobased Thermoset Resins.2006Conference paper (Refereed)
  • 9539.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Shichang, L.
    Shi, W.
    Adekunle, Kayode
    University of Borås, School of Engineering.
    Seppälä, J.
    Turunen, M.
    Preparation of nanocomposites from biobased thermoset resins by UV-curing2009In: Progress in organic coatings, ISSN 0300-9440, E-ISSN 1873-331X, Vol. 67, no 3, p. 281-286Article in journal (Refereed)
    Abstract [en]

    Biobased thermoset resins were irradiated with utraviolet(UV) radiation in the presence of photoinitiators. Three different resins were evaluated-two resins were based on soybean oil and one was based on lactic acid. The cross-linking behaviour of these resins was characterized by real-time FTIR and Soxhlet extraction. All of the resins cured rapidly and formed rigid materials with a high degree of conversion. The cross-linked resins were characterized by mechanical testing, thermogravimetric analysis (TGA) as well as dynamic-mechanical thermal analysis (DMTA). The resins were reinforced with layered silicate, in order to form nanocomposite Structures. The resulting composites were characterized by DMTA and tensile testing. (C) 2009 Elsevier B.V. All rights reserved.

  • 9540.
    Åkesson, Dan
    et al.
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Walkenström, P.
    University of Borås, Swedish School of Textiles.
    Preparation of thermoset composites from natural fibres and acrylate modified soybean oil resins2009In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 114, no 4, p. 2502-2508Article in journal (Refereed)
    Abstract [en]

    Structural composites with a high content of renewable material were produced from natural fibres and an acrylated epoxidized soybean oil resin. Composites were prepared by spray impregnation followed by compression moulding at elevated temperature. The resulting composites good mechanical properties in terms of tensile strength flexural strength. Tensile testing as well as dynamical :hanical thermal analysis showed that increasing the e content, increased the mechanical properties. The resin be reinforced with up to 70 wt % fibre without sacrifice in processability. The tensile modulus ranged between 5.8 and 9.7 GPa depending on the type of fibre mat. The study of the adhesion by low vacuum scanning electron microscopy shows that the fibres are well impregnated in the matrix. The aging properties were finally evaluated. This study shows that composites with a very high content of renewable constituents can be produced from soy bean oil resins and natural fibres.

  • 9541.
    Åkesson, Dan
    et al.
    University of Borås, Faculty of Textiles, Engineering and Business.
    Vrignaud, Thomas
    Tissot, Clément
    Skrifvars, Mikael
    University of Borås, Faculty of Textiles, Engineering and Business.
    Mechanical Recycling of PLA Filled with a High Level of Cellulose Fibres2016In: Journal of polymers and the environment, ISSN 1566-2543, E-ISSN 1572-8919, Vol. 25, no 3, p. 185-195Article in journal (Refereed)
    Abstract [en]

    Composites consisting of 30 vol% PLA and 70 vol% cellulose fibres were prepared with compression moulding. In the first part of the study, the recyclability of this composite material was investigated by grinding the material and using the recyclate obtained as a filler for PLA. Thus, the recyclate was compounded with PLA in loadings ranging from 20 to 50 wt%. The composites obtained were characterised by tensile tests, Charpy impact tests, DMTA, and SEM. Tests showed that the recyclate had a relatively good reinforcing effect. Stress at break increased from about 50 to 77 MPa and the modulus increased from 3.6 to 8.5 GPa. In the second part of the study, the ability to mechanically recycle the composites obtained was evaluated by repeated processing. Composite with two loadings of the recyclate (20 wt% and 50 %) was injection moulded repeatedly, six times. Tests showed that the composite material with 20 wt% recyclate could withstand six cycles relatively well, while the composite with the higher load degraded much more quickly. For the composites with 50 wt% recyclate, signs of polymer degradation could be seen already after reprocessing the composite once.

  • 9542. Årestedt, Kristofer
    et al.
    Herlitz, Johan
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    Israelsson, Johan
    Bremer, Anders
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    Psychometric properties of the Hospital Anxiety and Depressionscale in sudden cardiac arrest survivors2015Conference paper (Refereed)
  • 9543.
    Årestedt, Kristoffer
    et al.
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    Allert, Camilla
    Blekinge Institute of Technology.
    Djucanovic, Ingrid
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    Israelsson, Johan
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Schildmeijer, Kristina
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    Agerström, Jens
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    Årestedt, Liselott
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    Herlitz, Johan
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    Bremer, Anders
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    Health Related Quality of Life Among In-Hospital Cardiac Arrest Survivors in Working Age2018Conference paper (Refereed)
  • 9544.
    Åström, Fredrik
    et al.
    Lund University.
    Hammarfelt, Björn
    University of Borås, Faculty of Librarianship, Information, Education and IT.
    Conceptualising dimensions of bibliometric assessment: From resource allocation systems to evaluative landscapes2019In: Proceedings of the 17th Conference of the International Society for Scientometrics and Informetrics / [ed] Catalano, Giuseppe; Daraio, Cinzia; Gregori, Martina; Moed, Henk F.; Ruocco, Giancarlo;, 2019, p. 1256-1261Conference paper (Refereed)
    Abstract [en]

    The purpose of this paper is to discuss the conceptualisation of bibliometric analyses in terms of the levels on which they are performed, adding contextual factors to the dimension where the size of the unit being analysed is considered. Based on empirical investigations of resource allocation systems and research evaluation practices, as well as the previous literature conceptualising bibliometric analyses, a framework based on Whitley’s (2000) notion of research fields as ‘reputational work organisations’, is discussed. The results suggest adding a contextual ‘reputational dimension’ to the size-based dimension distinguishing between micro-, meso- andmacro-level analyses. Furthermore, we propose that ‘evaluative landscapes’ (Brandter, 2017) might be a fruitful approach for further analysing how complex and multifaceted landscapes of research assessment affects the individual researcher.

  • 9545. Öberg, Gunni
    Biblioteksguide för distansstuderande2001Conference paper (Other academic)
  • 9546. Ögland, Malin
    Från medieplanering till verksamhetsutveckling2008Conference paper (Other academic)
    Abstract [sv]

    Folkbiblioteket bör ha ett väl använt mediebestånd, ett bestånd som efterfrågas av de människor som nyttjar biblioteket. Samtidigt måste det vara tillgängligt; om alla populära böcker är utlånade ser det ut som om biblioteket bara har "tråkiga" böcker. Biblioteket ska inte vara en bokhandel som masskyltar med det allra senaste men måste naturligtvis ha ett bestånd som känns angeläget och aktuellt. Hur man ska uppnå en balans i många exemplar av efterfrågade titlar och samtidigt ha bredd på beståndet är naturligtvis källa till ständig diskussion. Behovet av analysverktyg är stort.

  • 9547. Ögland, Malin
    Mäta och väga2009Conference paper (Other academic)
    Abstract [sv]

    Mäta och Väga är ett projekt som drivs av Regionbibliotek Stockholm i samarbete med Regionbibliotek Västra Götaland och med bidrag från Kulturrådet. Projektet har som syfte att … "hitta nya mått som ger en bred och rättvisande bild av biblioteksverksamheten och redovisar omfattning, kvalitet och effektivitet som grund för verksamhetsutveckling". Resultatet ska bli en skrift om biblioteksstatistik, med en teoretisk och resonerande bakgrund och med praktiska förslag och tillämpningar. Projektet handlar om att få kunskap om teorier kring mått på folkbiblioteksverksamheten och att föreslå och resonera kring möjliga nyckeltal. Förhoppningsvis kan det leda till utvecklingsarbete i kommunerna och vid andra typer av bibliotek. Det teoretiska arbetet har handlat mycket om att förstå modeller och teorier kring effektivitet och hur dessa modeller kan (eller inte kan) tillämpas på biblioteksverksamhet.

  • 9548. Ögland, Malin
    Mäta och väga: om statistik och effektivitet på folkbibliotek2010Conference paper (Other academic)
    Abstract [sv]

    Mäta och Väga är ett projekt som initierats och drivits av Regionbibliotek Stockholm under 2008-2010 med bidrag från Statens Kulturråd. Under många år har den nationella biblioteksstatistiken kritiserats och diskuterats och olika initiativ har tagits av Kulturrådet, Sveriges kommuner och landsting (och dess föregångare), Svensk Biblioteksförening och vissa länsbibliotek utan att statistiken har förbättrats annat än marginellt. Kritiken har exempelvis gällt att statistiken inte ger en rättvisande bild av folkbibliotekens verksamhet, att vissa viktiga områden inte mäts alls och att definitionerna är oklara. För att komplettera den nationella statistiken har Regionbibliotek Stockholm sedan länge samlat in kompletterande siffror från länets bibliotek och sammanställt nyckeltal för Stockholms län. Orsaken var från början att den nationella SCB-statistiken publicerades för sent för att biblioteken skulle kunna ha någon glädje av den i årets verksamhetsplanering. Länsstatistiken kom ut tidigare och eftersom det som skulle mätas fastställdes varje år i samråd med länets bibliotekschefer kunde också ny service och nya företeelser tas med snabbt. I arbetet med länsstatistiken har Regionbibliotek Stockholm saknat en sammanhängande analys vilket ledde till att projektet Mäta och Väga initierades.

  • 9549. Ögland, Malin
    Observation pågår!2011Conference paper (Other academic)
    Abstract [sv]

    Regionbibliotek Stockholm har under flera år använt metoden observation för att bistå länets bibliotek med relevant underlag så att de på goda grunder kan besluta om förändringar av bibliotekslokal, öppettider eller arbetssätt. När Regionbibliotek Stockholm blir kontaktade av ett kommunbibliotek är det ofta en mängd frågor som behöver besvaras. Att avgränsa frågan är svårt och det kan vara frestande med ett brett och ambitiöst upplägg som dock kan förlora i stringens. Vi säger idag att vi observerar men använder i praktiken flera olika observationsmetoder. Ju mer erfarenhet av att observera och ju mer underlag vi fått från observationerna desto mer har vårt behov växt av att sammanställa och strukturera de erfarenheter vi har för att komma fram till vilken metod som är bäst vid vilket tillfälle. Observation som metod har också använts i Norge, Danmark men också på flera ställen i Sverige som t.ex. Värmland. Regionbibliotek Stockholm har på olika sätt sökt erfarenheter från dessa undersökningar. Denna artikel kommer endast att beröra Regionbibliotek Stockholms egna studier och är en del av ett planerat större arbete.

  • 9550. Ögland, Malin
    Planera för utveckling. Ett försök att integrera teori och praktik i ett ständigt utvecklingsarbete2007Conference paper (Other academic)
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Output format
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  • asciidoc
  • rtf