@article{SpangenbergLorek2022,
  author    = {Spangenberg, Joachim H. and Lorek, Sylvia},
  title     = {Who cares (for whom)},
  series = {Frontiers in Sustainability},
  journal   = {Frontiers in Sustainability},
  publisher = {Frontiers Media},
  doi       = {10.25974/fhms-16067},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-160675},
  year      = {2022},
  language  = {en}
}
@article{BorghoffStrassnerHerzig2023,
  author    = {Borghoff, Lisa Marie and Strassner, Carola and Herzig, Christian},
  title     = {Organic Juice Processing Quality from the Processors' Perspective: A Qualitative Study},
  series = {foods},
  journal   = {foods},
  publisher = {MDPI},
  doi       = {10.25974/fhms-15699},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-156994},
  pages     = {1 -- 18},
  year      = {2023},
  abstract  = {Organic food quality is based on processing. While the EU organic production regulation focuses on agricultural production, private standards provide more detailed information about further processing. For the development of organic processing, practitioner perspectives can provide valuable input. To get insight into practitioner perspectives, we conducted semi-structured expert interviews with nine employees of seven partly organic juice processing companies from Germany and Austria. Interview topics were (i) quality of organic juice processing in general, (ii) assessment of specific processing techniques, (iii) product quality of organic juice and (iv) flow of information between producer and consumer. We conducted a thematic analysis. We found that the experts' understanding of process quality mostly includes more aspects than the EU organic production regulation. It covers the whole food chain plus aspects of social and environmental sustainability. The experts prefer directly bottled juice of local raw materials but chiefly accept juice made from concentrate of exotic raw materials because of environmental concerns. Organic juice is preferred when it is cloudy and natural fluctuations are interpreted as an indicator of natural quality. The experts report that consumer information is challenging because of low food literacy. Raising this might help reduce the number of processed juices on the market.},
  language  = {en}
}
@article{BorghoffStrassnerHerzig2023,
  author    = {Borghoff, Lisa Marie and Strassner, Carola and Herzig, Christian},
  title     = {Processors' understanding of process quality: a qualitative interview study with employees of organic dairies in Germany and Switzerland},
  series = {British Food Journal},
  journal   = {British Food Journal},
  publisher = {Emerald Publishing},
  issn      = {0007-070X},
  doi       = {10.25974/fhms-15701},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-157019},
  pages     = {1 -- 32},
  year      = {2023},
  abstract  = {Purpose: Organic food processing must include organic principles to be authentic. This qualitative study aims to understand the processors' understanding of organic food processing quality. Design/methodology/approach: This study is based on semi-structured expert interviews with eight employees of six purely or partly organic dairies from Germany and Switzerland. Interview themes are (1) quality of organic milk processing in general, (2) assessment of specific processing techniques, (3) product quality of organic milk and (4) flow of information between producer and consumer. The interviews have been audio-recorded, transcribed verbatim and thematically analysed. Findings: (1) Experts prefer minimal processing; some prefer artisanal processing, whilst others stress the advantages of mechanisation. (2) High temperature short time (HTST) pasteurisation and mechanical processing techniques are accepted; ultra-high-temperature (UHT) milk processing is partly rejected. (3) Traditional taste and valuable ingredients should be present in the final product. Natural variances are judged positively. (4) Consumers' low level of food technology literacy is challenging for communication. Research limitations/implications: The results cannot be generalised due to the qualitative study design. Further studies, e.g. qualitative case analyses and studies with a quantitative design, are necessary to deepen the results. Practical implications: The paper shows which processing technologies experts consider suitable or unsuitable for organic milk. The paper also identifies opportunities to bridge the perceived gap between processors' and consumers' demands. Originality/value: The study shows the challenges of processors in expressing the processors' understanding of process quality.},
  language  = {en}
}
@inproceedings{WittrockWelp2006,
  author    = {Wittrock, Ulrich and Welp, Petra},
  title     = {Adaptive laser resonator control with deformable MOEMS mirrors},
  series = {MEMS/MOEMS Components and Their Applications III, Proc. SPIE},
  volume    = {6113},
  booktitle = {MEMS/MOEMS Components and Their Applications III, Proc. SPIE},
  publisher = {SPIE},
  doi       = {10.25974/fhms-653},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-6537},
  pages     = {61130C},
  year      = {2006},
  abstract  = {Adaptive laser resonators with deformable MOEMS mirrors under closed-loop control are discussed and experimental results are presented. The requirements for deformable mirrors and for closed-loop control systems of these mirrors are analyzed. Several deformable mirrors have been characterized and the results are presented. Currently available membrane mirrors deform under laser load and need further development before they can be used for aberration correction of solid state lasers above some tens of Watts. Nevertheless, the results are encouraging and the requirements are within reach of currently available technology. Finally, we demonstrate an Nd.YVO4-laser with a closed-loop adaptive resonator and more than 6 W of output power. The closed-loop system was able to compensate artificially introduced aberrations from a phase plate.},
  language  = {de}
}
@article{HeuckNeumayerKuehletal.2006,
  author    = {Heuck, Hans-Martin and Neumayer, Paul and K{\"u}hl, Thomas and Wittrock, Ulrich},
  title     = {Chromatic aberration in petawatt-class lasers},
  series = {Appl. Phys. B},
  volume    = {84},
  journal   = {Appl. Phys. B},
  publisher = {Springer},
  doi       = {10.25974/fhms-652},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-6523},
  pages     = {421 -- 428},
  year      = {2006},
  abstract  = {In order to avoid optical damage and non-linear effects, high-power, high-energy lasers of the petawatt class like PHELIX (petawatt high-energy laser for heavy-ion experiments) use large-aperture optics. Usually, chromatic aberration associated with these optical elements is neglected. By means of numerical simulations, we show how the chromatic aberration affects the focal intensity pattern. In particular, we make quantitative predictions of how chromatic aberration decreases the focused peak intensity. Furthermore, we prove the feasibility of a new interferometer that measures the temporal pulse front distortions which arise from expansion telescopes. We also propose a scheme that pre-compensates these distortions.},
  language  = {en}
}
@article{BuskeWittrock2006,
  author    = {Buske, Ivo and Wittrock, Ulrich},
  title     = {Diffraction analysis of aberrated laser resonators},
  series = {Appl. Phys. B},
  volume    = {83},
  journal   = {Appl. Phys. B},
  doi       = {10.25974/fhms-825},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-8252},
  pages     = {229 -- 233},
  year      = {2006},
  abstract  = {A numerical analysis of laser resonators with aberrations is presented. {T}he analysis shows that aberrations lead to large diffraction losses of laser resonators which are laid out to produce diffraction-limited beam quality. {S}tatic or dynamic compensation of the aberrations is possible and would yield much higher output power.},
  language  = {en}
}
@article{Stuber2007,
  author    = {Stuber, Franz},
  title     = {Betriebliche Praxisfelder erschließen - Ein Informationsportal unterst{\"u}tzt forschendes Lernen in Praxisstudien},
  series = {bwpat},
  journal   = {bwpat},
  publisher = {bwp},
  address   = {Hamburg},
  issn      = {1618-8543},
  doi       = {10.25974/fhms-464},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-4644},
  year      = {2007},
  abstract  = {Ein Beitrag {\"u}ber das Informationsportal "Betriebliche Praxisfelder erschließen" zur Unterst{\"u}tzung des forschenden Lernens in Praxisstudien.},
  language  = {de}
}
@article{MuellerWinterRosenbaumetal.2010,
  author    = {M{\"u}ller, Carsten and Winter, Corinna and Rosenbaum, Dieter and Boos, Joachim and Gosheger, Georg and Hardes, Jendrik and Vieth, Volker},
  title     = {Early decrements in bone density after completion of neoadjuvant chemotherapy in pediatric bone sarcoma patients},
  series = {BMC Musculoskeletal Disorders},
  volume    = {11},
  journal   = {BMC Musculoskeletal Disorders},
  number    = {287},
  doi       = {10.25974/fhms-16866},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-168661},
  pages     = {1 -- 8},
  year      = {2010},
  abstract  = {Background Bone mineral density (BMD) accrual during childhood and adolescence is important for attaining peak bone mass. BMD decrements have been reported in survivors of childhood bone sarcomas. However, little is known about the onset and development of bone loss during cancer treatment. The objective of this cross-sectional study was to evaluate BMD in newly diagnosed Ewing's and osteosarcoma patients by means of dual-energy x-ray absorptiometry (DXA) after completion of neoadjuvant chemotherapy. Methods DXA measurements of the lumbar spine (L2-4), both femora and calcanei were performed perioperatively in 46 children and adolescents (mean age: 14.3 years, range: 8.6-21.5 years). Mean Z-scores, areal BMD (g/cm2), calculated volumetric BMD (g/cm3) and bone mineral content (BMC, g) were determined. Results Lumbar spine mean Z-score was -0.14 (95\% CI: -0.46 to 0.18), areal BMD was 1.016 g/cm2 (95\% CI: 0.950 to 1.082) and volumetric BMD was 0.330 g/cm3 (95\% CI: 0.314 to 0.347) which is comparable to healthy peers. For patients with a lower extremity tumor (n = 36), the difference between the affected and non-affected femoral neck was 12.1\% (95\% CI: -16.3 to -7.9) in areal BMD. The reduction of BMD was more pronounced in the calcaneus with a difference between the affected and contralateral side of 21.7\% (95\% CI: -29.3 to -14.0) for areal BMD. Furthermore, significant correlations for femoral and calcaneal DXA measurements were found with Spearman-rho coefficients ranging from ρ = 0.55 to ρ = 0.80. Conclusions The tumor disease located in the lower extremity in combination with offloading recommendations induced diminished BMD values, indicating local osteopenia conditions. However, the results revealed no significant decrements of lumbar spine BMD in pediatric sarcoma patients after completion of neoadjuvant chemotherapy. Nevertheless, it has to be taken into account that bone tumor patients may experience BMD decrements or secondary osteoporosis in later life. Furthermore, the peripheral assessment of BMD in the calcaneus via DXA is a feasible approach to quantify bone loss in the lower extremity in bone sarcoma patients and may serve as an alternative procedure, when the established assessment of femoral BMD is not practicable due to endoprosthetic replacements.},
  language  = {en}
}
@article{WinterBrandesMuelleretal.2010,
  author    = {Winter, Corinna and Brandes, Mirko and M{\"u}ller, Carsten and Schubert, Tim and Ringling, Michael and Hillmann, Axel and Rosenbaum, Dieter and Schulte, Tim T.},
  title     = {Walking ability during daily life in patients with osteoarthritis of the knee or the hip and lumbar spinal stenosis},
  series = {BMC Musculoskeletal Disorders},
  volume    = {11},
  journal   = {BMC Musculoskeletal Disorders},
  number    = {233},
  doi       = {10.25974/fhms-16867},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-168673},
  pages     = {1 -- 7},
  year      = {2010},
  abstract  = {Background Degenerative musculoskeletal disorders are among the most frequent diseases occurring in adulthood, often impairing patients' functional mobility and physical activity. The aim of the present study was to investigate and compare the impact of three frequent degenerative musculoskeletal disorders -- knee osteoarthritis (knee OA), hip osteoarthritis (hip OA) and lumbar spinal stenosis (LSS) -- on patients' walking ability. Methods The study included 120 participants, with 30 in each patient group and 30 healthy control individuals. A uniaxial accelerometer, the StepWatch™ Activity Monitor (Orthocare Innovations, Seattle, Washington, USA), was used to determine the volume (number of gait cycles per day) and intensity (gait cycles per minute) of walking ability. Non-parametric testing was used for all statistical analyses. Results Both the volume and the intensity of walking ability were significantly lower among the patients in comparison with the healthy control individuals (p < 0.001). Patients with LSS spent 0.4 (IQR 2.8) min/day doing moderately intense walking (>50 gait cycles/min), which was significantly lower in comparison with patients with knee and hip OA at 2.5 (IQR 4.4) and 3.4 (IQR 16.1) min/day, respectively (p < 0.001). No correlations between demographic or anthropometric data and walking ability were found. No technical problems or measuring errors occurred with any of the measurements. Conclusions Patients with degenerative musculoskeletal disorders suffer limitations in their walking ability. Objective assessment of walking ability appeared to be an easy and feasible tool for measuring such limitations as it provides baseline data and objective information that are more precise than the patients' own subjective estimates. In everyday practice, objective activity assessment can provide feedback for clinicians regarding patients' performance during everyday life and the extent to which this confirms the results of clinical investigations. The method can also be used as a way of encouraging patients to develop a more active lifestyle.},
  language  = {en}
}
@techreport{LinssenLitzckeSchoenetal.2011,
  type      = {Working Paper},
  author    = {Linssen, Ruth and Litzcke, Sven. M. and Sch{\"o}n, Felix and Schilling, Jan},
  title     = {Korruption und Gewissenhaftigkeit},
  publisher = {Hochschule Hannover},
  doi       = {10.25974/fhms-451},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-4510},
  year      = {2011},
  abstract  = {Online-Ver{\"o}ffentlichung},
  language  = {de}
}