@misc{SmetanovaMuellerZargaretal.2020, author = {Smetanov{\´a}, Anna and M{\"u}ller, Anne and Zargar, Morteza and Suleiman, Mohamed A. and Gholami, Faraz Rabei and Mousavi, Maryam}, title = {Mesoscale mapping of sediment source hotspots for dam sediment management in data-sparse semi-arid catchments}, series = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe}, journal = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe}, number = {2}, issn = {1866-8372}, doi = {10.25932/publishup-47244}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-472441}, pages = {26}, year = {2020}, abstract = {Land degradation and water availability in semi-arid regions are interdependent challenges for management that are influenced by climatic and anthropogenic changes. Erosion and high sediment loads in rivers cause reservoir siltation and decrease storage capacity, which pose risk on water security for citizens, agriculture, and industry. In regions where resources for management are limited, identifying spatial-temporal variability of sediment sources is crucial to decrease siltation. Despite widespread availability of rigorous methods, approaches simplifying spatial and temporal variability of erosion are often inappropriately applied to very data sparse semi-arid regions. In this work, we review existing approaches for mapping erosional hotspots, and provide an example of spatial-temporal mapping approach in two case study regions. The barriers limiting data availability and their effects on erosion mapping methods, their validation, and resulting prioritization of leverage management areas are discussed.}, language = {en} } @article{SmetanovaMuellerZargaretal.2020, author = {Smetanov{\´a}, Anna and M{\"u}ller, Anne and Zargar, Morteza and Suleiman, Mohamed A. and Gholami, Faraz Rabei and Mousavi, Maryam}, title = {Mesoscale mapping of sediment source hotspots for dam sediment management in data-sparse semi-arid catchments}, series = {Water}, volume = {12}, journal = {Water}, number = {2}, publisher = {MDPI}, address = {Basel}, issn = {2073-4441}, doi = {10.3390/w12020396}, pages = {1 -- 24}, year = {2020}, abstract = {Land degradation and water availability in semi-arid regions are interdependent challenges for management that are influenced by climatic and anthropogenic changes. Erosion and high sediment loads in rivers cause reservoir siltation and decrease storage capacity, which pose risk on water security for citizens, agriculture, and industry. In regions where resources for management are limited, identifying spatial-temporal variability of sediment sources is crucial to decrease siltation. Despite widespread availability of rigorous methods, approaches simplifying spatial and temporal variability of erosion are often inappropriately applied to very data sparse semi-arid regions. In this work, we review existing approaches for mapping erosional hotspots, and provide an example of spatial-temporal mapping approach in two case study regions. The barriers limiting data availability and their effects on erosion mapping methods, their validation, and resulting prioritization of leverage management areas are discussed.}, language = {en} } @misc{GellertHaeuslerSuhretal.2018, author = {Gellert, Paul and H{\"a}usler, Andreas and Suhr, Ralf and Gholami, Maryam and Rapp, Michael A. and Kuhlmey, Adelheid and Nordheim, Johanna}, title = {Testing the stress-buffering hypothesis of social support in couples coping with early-stage dementia}, series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, number = {657}, issn = {1866-8364}, doi = {10.25932/publishup-44627}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-446270}, pages = {16}, year = {2018}, abstract = {Purpose To test whether the negative relationship between perceived stress and quality of life (Hypothesis 1) can be buffered by perceived social support in patients with dementia as well as in caregivers individually (Hypothesis 2: actor effects) and across partners (Hypothesis 3: partner effects and actor-partner effects). Method A total of 108 couples (N = 216 individuals) comprised of one individual with early-stage dementia and one caregiving partner were assessed at baseline and one month apart. Moderation effects were investigated by applying linear mixed models and actor-partner interdependence models. Results Although the stress-quality of life association was more pronounced in caregivers (beta = -.63, p<.001) compared to patients (beta= -.31, p<.001), this association was equally moderated by social support in patients (beta = .14, p<.05) and in the caregivers (beta =.13, p<.05). From one partner to his or her counterpart, the partner buffering and actor-partner-buffering effect were not present. Conclusion The stress-buffering effect has been replicated in individuals with dementia and caregivers but not across partners. Interventions to improve quality of life through perceived social support should not only focus on caregivers, but should incorporate both partners.}, language = {en} } @article{GellertHaeuslerSuhretal.2018, author = {Gellert, Paul and H{\"a}usler, Andreas and Suhr, Ralf and Gholami, Maryam and Rapp, Michael A. and Kuhlmey, Adelheid and Nordheim, Johanna}, title = {Testing the stress-buffering hypothesis of social support in couples coping with early-stage dementia}, series = {PLoS one}, volume = {13}, journal = {PLoS one}, number = {1}, publisher = {PLoS}, address = {San Fransisco}, issn = {1932-6203}, doi = {10.1371/journal.pone.0189849}, pages = {14}, year = {2018}, abstract = {Purpose: To test whether the negative relationship between perceived stress and quality of life (Hypothesis 1) can be buffered by perceived social support in patients with dementia as well as in caregivers individually (Hypothesis 2: actor effects) and across partners (Hypothesis 3: partner effects and actor-partner effects). Method: A total of 108 couples (N = 216 individuals) comprised of one individual with early-stage dementia and one caregiving partner were assessed at baseline and one month apart. Moderation effects were investigated by applying linear mixed models and actor-partner interdependence models. Results: Although the stress-quality of life association was more pronounced in caregivers (beta = -.63, p<.001) compared to patients (beta= -.31, p<.001), this association was equally moderated by social support in patients (beta = .14, p<.05) and in the caregivers (beta =.13, p<.05). From one partner to his or her counterpart, the partner buffering and actor-partner-buffering effect were not present. Conclusion: The stress-buffering effect has been replicated in individuals with dementia and caregivers but not across partners. Interventions to improve quality of life through perceived social support should not only focus on caregivers, but should incorporate both partners.}, language = {en} } @article{GellertHaeuslerGholamietal.2017, author = {Gellert, Paul and H{\"a}usler, Andreas and Gholami, Maryam and Rapp, Michael A. and Kuhlmey, Adelheid and Nordheim, Johanna}, title = {Own and partners' dyadic coping and depressive symptoms in individuals with early-stage dementia and their caregiving partners}, series = {Aging \& Mental Health}, volume = {22}, journal = {Aging \& Mental Health}, number = {8}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {1360-7863}, doi = {10.1080/13607863.2017.1334759}, pages = {1008 -- 1016}, year = {2017}, abstract = {Objectives: In patients with early-stage dementia and their caregiving partners, reciprocal dyadic coping (DC) is crucial for preventing or reducing depressive symptoms in both partners. This study examines the relationships between 'own DC' and 'perceived partner DC' with depressive symptoms in couples coping with dementia on individual (actor effects) and cross-person (partner effects) levels. Method: 164 individuals (82 patients with early-stage dementia and their 82 caregiving partners; ND = 82 dyads) participated in this prospective study with measures (DC, depressive symptoms, and dementia severity) taken at baseline and at six months. Each partner evaluated their own and the perceived partner DC. Actor-partner interdependence models were applied to the resulting four independent evaluations. Results: Results differed substantially between patients and caregivers. DC was significantly related to patients' but not to caregivers' depressive symptoms, when adjustments were made for individual coping. Perceived partner DC showed a negative association with depressive symptoms in patients, whereas own DC was adversely related for actor as well as for partner effects across individuals. Conclusion: The adverse association between the own DC of the caregiver and the patient on depressive symptoms of the patient might be due to inappropriate efforts or to the loss of autonomy as a care-receiver. DC is important in both patients and caregivers, as shown by the negative association between perceived partner DC and depressive symptoms in the patients, which might inform interventions that target the couple as a whole.}, language = {en} }