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  • Result 21-30 of 48
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21.
  • Carlberg, Björn, 1983, et al. (author)
  • Surface-Confined Synthesis of Silver Nanoparticle Composite Coating on Electrospun Polyimide Nanofibers
  • 2011
  • In: Small. - : Wiley. - 1613-6810 .- 1613-6829. ; 7:21, s. 3057-3066
  • Journal article (peer-reviewed)abstract
    • A methodology for fabricating hierarchical nanostructures by surface-confined synthesis of silver nanoparticles on electrospun polyimide nanofibers is reported. Through surface-confined imide cleavage at the dianhydride domain via immersion in an aqueous KOH solution, potassium polyamate coatings of accurately defined thickness are formed (at a rate of 25 nm h(-1)). By utilizing the ion-exchange capability of the polyamate resin, silver ions are introduced through immersion in an aqueous AgNO(3) solution. Subsequent reduction of the metal ion species leads to the formation of nanoparticles at the fiber surface. Two modes of reduction, chemical and thermal, are investigated in the report, each leading to distinct morphologies of the nanoparticle coatings. Via thermal reduction, a composite surface layer consisting of monodisperse silver nanoparticles (average diameter 5.2 nm) embedded in a re-imidized polyimide matrix is achieved. In the case of chemical reduction, the reduction process occurs preferentially at the surface of the fiber, leading to the formation of silver nanoparticles anchored at the surface, though not embedded, in a polyamic acid matrix. By regulating the modification depth, control of the particle density on the fiber surface is established. In both reduction approaches, the polyimide nanofiber core exhibits maintained integrity.
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22.
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23.
  • Carlberg, M, et al. (author)
  • Paternal Perinatal Depression Assessed by the Edinburgh Postnatal Depression Scale and the Gotland Male Depression Scale: Prevalence and Possible Risk Factors
  • 2018
  • In: American journal of men's health. - : SAGE Publications. - 1557-9891 .- 1557-9883. ; 12:4, s. 720-729
  • Journal article (peer-reviewed)abstract
    • Several studies have used the Edinburgh Postnatal Depression Scale (EPDS), developed to screen new mothers, also for new fathers. This study aimed to further contribute to this knowledge by comparing assessment of possible depression in fathers and associated demographic factors by the EPDS and the Gotland Male Depression Scale (GMDS), developed for “male” depression screening. The study compared EPDS score ≥10 and ≥12, corresponding to minor and major depression, respectively, in relation to GMDS score ≥13. At 3–6 months after child birth, a questionnaire was sent to 8,011 fathers of whom 3,656 (46%) responded. The detection of possibly depressed fathers by EPDS was 8.1% at score ≥12, comparable to the 8.6% detected by the GMDS. At score ≥10, the proportion detected by EPDS increased to 13.3%. Associations with possible risk factors were analyzed for fathers detected by one or both scales. A low income was associated with depression in all groups. Fathers detected by EPDS alone were at higher risk if they had three or more children, or lower education. Fathers detected by EPDS alone at score ≥10, or by both scales at EPDS score ≥12, more often were born in a foreign country. Seemingly, the EPDS and the GMDS are associated with different demographic risk factors. The EPDS score appears critical since 5% of possibly depressed fathers are excluded at EPDS cutoff 12. These results suggest that neither scale alone is sufficient for depression screening in new fathers, and that the decision of EPDS cutoff is crucial.
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24.
  • Edhborg, M, et al. (author)
  • "Waiting for Better Times": Experiences in the First Postpartum Year by Swedish Fathers With Depressive Symptoms
  • 2016
  • In: American journal of men's health. - : SAGE Publications. - 1557-9891 .- 1557-9883. ; 10:5, s. 428-439
  • Journal article (peer-reviewed)abstract
    • Swedish fathers are largely involved in their infant’s care, and Sweden has a generous parental leave, with 2 months especially assigned for fathers. The prevalence of depressive symptoms postpartum for fathers appears to be similar as for mothers in Sweden. This study aimed to describe fathers’ experiences of the first year postpartum, when they showed depressive symptoms 3 to 6 months postpartum. Semistructured interviews with 19 fathers were conducted and analyzed with content analysis. The fathers experienced loss of control and powerlessness due to discrepancies between their expectations and the reality they met after birth. They found the everyday-life turbulent, with much stress and worries for the infant, conflicts between family and work, and lack of support in everyday life. In addition, the fathers struggled with impaired partner-relationship, losses, and contradictory messages from both the society and their partners. These findings indicate that the fathers had difficulties to balance the competing demands of family, work, and their own needs. Thus, it is important to identify fathers with depressive symptoms at the Child Health Care Centers and attend to fathers’ needs of support and acknowledge them as parents equal to mothers.
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25.
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26.
  • Hardell, L, et al. (author)
  • Cellular and cordless telephones and the risk for brain tumours
  • 2002
  • In: European journal of cancer prevention : the official journal of the European Cancer Prevention Organisation (ECP). - : Ovid Technologies (Wolters Kluwer Health). - 0959-8278. ; 11:4, s. 377-386
  • Journal article (peer-reviewed)
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27.
  • Hardell, L, et al. (author)
  • Concentrations of polychlorinated biphenyls in blood and the risk for testicular cancer
  • 2004
  • In: International Journal of Andrology. - : Wiley. - 0105-6263 .- 1365-2605. ; 27:5, s. 282-290
  • Journal article (peer-reviewed)abstract
    • An increasing incidence of testicular cancer has been reported from several western countries during the last decades. According to current hypothesis testicular cancer is initiated during the foetal period and exposure to endocrine disruptors such as some persistent organic pollutants has been of concern. We have previously reported the results for concentrations of polychlorinated biphenyls (PCBs), p,p'-dichlorodiphenyl-dichloroethylene (pp'-DDE), hexachlorobenzene (HCB) and chlordanes in 58 cases with testicular cancer, 61 age-matched controls and 44 case mothers and 45 control mothers. In that report, significant increase of odds ratio (OR) was found for sum of PCBs, HCB, trans- and cis-nonachlordane in case mothers. These data have now been further analysed for 37 congeners of PCBs. No significant differences were found among cases and controls. However, case mothers had significantly increased concentrations of a number of PCB congeners. A priori decided grouping of PCBs yielded for oestrogenic PCBs OR = 2.4, 95% confidence interval (CI) = 0.95-6.0, enzyme-inducing PCBsOR = 2.6, 95% CI = 1.03-6.5 and toxic equivalents (TEQ) yielded OR = 3.3, 95% CI = 1.3-8.4. These data further elucidate the role of foetal exposure to different PCB congeners in the aetiology of testicular cancer.
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28.
  • Hardell, L, et al. (author)
  • In utero exposure to persistent organic pollutants in relation to testicular cancer risk
  • 2006
  • In: International Journal of Andrology. - : Wiley. - 0105-6263 .- 1365-2605. ; 29:1, s. 228-234
  • Journal article (peer-reviewed)abstract
    • Testicular cancer is the most common tumour type in young men. In Sweden the annual age-adjusted incidence increased significantly by 2.4% during the time period 1984-1993 and during 1994-2003 by 1.4%. Exposure to endocrine disrupting chemicals during the foetal period has been postulated to be a risk factor. In this investigation we studied the concentrations of chlorinated biphenyls (PCBs), p,p'-dichlorodiphenyl-dichloroethylene (pp'-DDE), hexachlorobenzene (HCB), chlordanes and polybrominated diphenylethers (PBDEs) in 58 cases with testicular cancer and 61 age-matched controls. Furthermore, case and control mothers were also asked to participate and 44 case mothers and 45 control mothers agreed. No significant differences were found between cases and controls. Case mothers had in general higher concentrations of these chemicals. For the sum of PCBs an odds ratio (OR) = 3.8, 95% confidence interval (CI) = 1.4-10 was calculated using the median concentration for the controls as cut-off value. For HCB OR = 4.4, CI = 1.7-12 and for PBDE OR = 2.5, 95% Cl = 1.02-6.0 were obtained, whereas OR was not significantly increased for pp'-DDE and sum of chlordanes. The cases were born during a period with high concentrations of persistent organic pollutants (POPs) in humans. The decline of the increasing incidence of testicular cancer during recent years may reflect decreasing body burden of certain POPs since the 1980s.
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29.
  • Hardell, L, et al. (author)
  • Increased concentrations of polychlorinated biphenyls, hexachlorobenzene, and chlordanes in mothers of men with testicular cancer
  • 2003
  • In: Journal of Environmental Health Perspectives. - : Environmental Health Perspectives. - 0091-6765 .- 1552-9924. ; 111:7, s. 930-934
  • Journal article (peer-reviewed)abstract
    • An increasing incidence of testicular cancer has been reported from several countries in the Western world during the last decades. According to current hypothesis, testicular cancer is initiated during the fetal period, and exposure to endocrine disruptors, i.e., xenoestrogens, has been of concern. In this investigation we studied the concentrations of the sum of 38 polychlorinated biphenyls (PCBs), p,p'-dichlorodiphenyl-dichloroethylene, hexachlorobenzene (HCB), and chlordanes, in 61 cases with testicular cancer and 58 age-matched controls. Furthermore, case and control mothers were also asked to participate, and 44 case mothers and 45 control mothers agreed. They were of similar age. In cases only the concentration on lipid basis of cis-nonachlordane was significantly increased, whereas case mothers showed significantly increased concentrations of the sum of PCBs, HCB, trans- and cis-nonachlordane, and the sum of chlordanes. Among case mothers the sum of PCBs yielded an odds ratio (OR) of 3.8, 95% confidence interval (CI), 1.4-10 was calculated using the median concentration for the control mothers as cutoff value. For HCB, OR = 4.4 (95% CI, 1.7-12), for trans-nonachlordane, OR = 4.1 (95% CI, 1.5-11), for cis-nonachlordane, OR = 3.1 (95% CI, 1.2-7.8), and for sum of chlordanes, OR = 1.9 (95% CI, 0.7-5.0). No consistent different risk pattern was found for seminoma. or nonseminoma testicular cancer.
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30.
  • Hardell, Lennart, et al. (author)
  • Long-term use of cellular phones and brain tumours : increased risk associated with use for ≥10 years
  • 2007
  • In: Occupational and Environmental Medicine. - London : BMJ Publishing Group. - 1351-0711 .- 1470-7926. ; 64, s. 626-632
  • Journal article (peer-reviewed)abstract
    • AIM: To evaluate brain tumour risk among long-term users of cellular telephones. METHODS: Two cohort studies and 16 case-control studies on this topic were identified. Data were scrutinised for use of mobile phone for > or =10 years and ipsilateral exposure if presented. RESULTS: The cohort study was of limited value due to methodological shortcomings in the study. Of the 16 case-control studies, 11 gave results for > or =10 years' use or latency period. Most of these results were based on low numbers. An association with acoustic neuroma was found in four studies in the group with at least 10 years' use of a mobile phone. No risk was found in one study, but the tumour size was significantly larger among users. Six studies gave results for malignant brain tumours in that latency group. All gave increased odd ratios (OR), especially for ipsilateral exposure. In a meta-analysis, ipsilateral cell phone use for acoustic neuroma was OR = 2.4 (95% CI 1.1 to 5.3) and OR = 2.0, (1.2 to 3.4) for glioma using a tumour latency period of > or =10 years. CONCLUSIONS: Results from present studies on use of mobile phones for > or =10 years give a consistent pattern of increased risk for acoustic neuroma and glioma. The risk is highest for ipsilateral exposure.
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  • Result 21-30 of 48
Type of publication
journal article (40)
conference paper (5)
other publication (2)
reports (1)
Type of content
peer-reviewed (44)
other academic/artistic (4)
Author/Editor
Carlberg, M (11)
Liu, Johan, 1960 (7)
Hardell, L (7)
Ye, L (6)
Kaprio, J (5)
Li, D. (5)
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KLARESKOG, L (5)
Roberts, M. (5)
Bulik, CM (5)
Egberts, K. (5)
Breen, G (5)
Foretova, L (5)
Schmidt, U. (5)
Rujescu, D (5)
Wagner, G (5)
Alfredsson, L (5)
Ehrlich, S (5)
Cichon, S (5)
Espeseth, T (5)
Le Hellard, S (5)
Lissowska, J (5)
Lichtenstein, P. (5)
Palotie, A (5)
Reichborn-Kjennerud, ... (5)
Ando, T. (5)
Dina, C (5)
Metspalu, A (5)
Jimenez-Murcia, S (5)
Hakonarson, H (5)
Hauser, J. (5)
Herms, S. (5)
Tortorella, A. (5)
Monteleone, P. (5)
Maj, M. (5)
Clementi, M (5)
Navratilova, M (5)
Treasure, J (5)
Gorwood, P (5)
Wichmann, HE (5)
Bencko, V (5)
Giegling, I (5)
Herzog, W (5)
Julia, A. (5)
Zipfel, S (5)
Marsal, S. (5)
Keski-Rahkonen, A. (5)
Gambaro, G (5)
Southam, L (5)
Tozzi, F (5)
Rybakowski, F (5)
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University
Karolinska Institutet (19)
Lund University (9)
Chalmers University of Technology (8)
Stockholm University (7)
Umeå University (4)
Örebro University (4)
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Linköping University (4)
University of Gothenburg (3)
Kristianstad University College (2)
Malmö University (2)
Linnaeus University (2)
Royal Institute of Technology (1)
Uppsala University (1)
RISE (1)
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Language
English (48)
Research subject (UKÄ/SCB)
Medical and Health Sciences (13)
Natural sciences (11)
Engineering and Technology (7)

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