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Robert Richter  - - - 
Top co-authors See all
Kevin C. Prince

241 shared publications

View the Scitation page for University of Science and Technology of China (USTC).;;

Augustinus Bader

149 shared publications

Department of Cell Techniques and Applied Stem Cell Biology, Center of Biotechnology and Biomedicine

Marzio Rosi

147 shared publications

University of Perugia

Susanne Singer

88 shared publications

University of Leipzig

Stefano Falcinelli

70 shared publications

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Publication Record
Distribution of Articles published per year 
(1951 - 2016)
Total number of journals
published in
 
11
 
Publications See all
Conference 5 Reads 0 Citations The Role of Molecular Dications in Planetary Atmospheric Escape Stefano Falcinelli, Fernando Pirani, Michele Alagia, Luca Sc... Published: 16 July 2016
The 1st International Electronic Conference on Atmospheric Sciences, doi: 10.3390/ecas2016-b004
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Article 0 Reads 2 Citations A tandem time–of–flight spectrometer for negative–ion/positive–ion coincidence measurements with soft x-ray excitation Christian Stråhlman, Rami Sankari, Antti Kivimäki, Robert Ri... Published: 01 January 2016
Review of Scientific Instruments, doi: 10.1063/1.4940425
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We present a newly constructed spectrometer for negative–ion/positive–ion coincidence spectroscopy of gaseous samples. The instrument consists of two time–of–flight ion spectrometers and a magnetic momentum filter for deflection of electrons. The instrument can measure double and triple coincidences between mass–resolved negative and positive ions with high detection efficiency. First results include identification of several negative–ion/positive–ion coincidence channels following inner-shell photoexcitation of sulfur hexafluoride (SF6).
BOOK-CHAPTER 1 Read 2 Citations Angular Distributions of Fragment Ions Produced by Coulomb Explosion of Simple Molecular Dications of Astrochemical Inte... Stefano Falcinelli, Marzio Rosi, Pietro Candori, Franco Vecc... Published: 01 January 2015
Mathematical Software – ICMS 2018, doi: 10.1007/978-3-319-21407-8_22
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Article 0 Reads 10 Citations Exploring covalently bonded diamondoid particles with valence photoelectron spectroscopy $(document).ready(function() { ... Andre Knecht, Tetyana V. Koso, Lesya V. Chernish, Pavel A. G... Published: 01 January 2013
The Journal of Chemical Physics, doi: 10.1063/1.4818994
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We investigated the valence electronic structure of diamondoid particles in the gas phase, utilizing valence photoelectron spectroscopy. The samples were singly or doubly covalently bonded dimers or trimers of the lower diamondoids. Both the bond type and the combination of bonding partners are shown to affect the overall electronic structure. For singly bonded particles, we observe a small impact of the bond on the electronic structure, whereas for doubly bonded particles, the connecting bond determines the electronic structure of the highest occupied orbitals. In the singly bonded particles a superposition of the bonding partner orbitals determines the overall electronic structure. The experimental findings are supported by density functional theory computations at the M06-2X/cc-pVDZ level of theory.
Article 0 Reads 5 Citations Art therapy in psycho-oncology—recruitment of participants and gender differences in usage Marianne Buttstaedt, Elmar Braehler, Ursula Boehler, Susanne... Published: 27 January 2011
Supportive Care in Cancer, doi: 10.1007/s00520-011-1095-y
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Purpose: Over the last years, there has been increasing focus on the effect of art therapy for oncological patients. The small sample sizes of these studies show that recruiting participants is difficult and has been poorly investigated. It is also apparent that women participate in art therapy more often than men. The question remains why this difference exists and if participating men benefit from these courses more, less or in a different way than women do. Methods: We developed and tested an outpatient art intervention for cancer patients, whereby different recruitment strategies were documented. Participants were questioned about their mental health (HADS), coping strategies (FKV), and quality of life (EORTC QLQ-C30) at the beginning and end of the intervention. Results: The recruitment strategies included personal letters, referrals from the „Information Center For Cancer Patients", press releases and leaflets/posters distributed to hospitals and medical practices. About half of the participants (N=35), especially the male ones, took part in response to receiving a personal letter. All in all, 14 men and 60 women took part in the intervention whereby all 18 drop-outs were female. There were no significant gender differences regarding distress and quality of life before and after the intervention (men=14; women=41). Conclusions: A variety of approaches and intense public relations are necessary to recruit patients for art therapy. Describing recruitment strategies more in detail is suggested for upcoming art therapy studies. First gender specific differences were found in recruitment and usage. Exploring further questions in this area referring to quality of life and distress larger and uniformly distributed samples are desirable.
Article 0 Reads 41 Citations Repair of Chronic Osteochondral Defects Using Predifferentiated Mesenchymal Stem Cells in an Ovine Model Matthias Zscharnack, Pierre Hepp, Robert Richter, Thomas Aig... Published: 27 May 2010
The American Journal of Sports Medicine, doi: 10.1177/0363546510365296
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Background: The use of mesenchymal stem cells (MSCs) to treat osteochondral defects caused by sports injuries or disease is of particular interest. However, there is a lack of studies in large-animal models examining the benefits of chondrogenic predifferentiation in vitro for repair of chronic osteochondral defects. Hypothesis: Chondrogenic in vitro predifferentiation of autologous MSCs embedded in a collagen I hydrogel currently in clinical trial use for matrix-associated autologous chondrocyte transplantation facilitates the regeneration of a chronic osteochondral defect in an ovine stifle joint. Study Design: Controlled laboratory study. Methods: The optimal predifferentiation period of ovine MSCs within the type I collagen hydrogel in vitro was defined by assessment of several cellular and molecular biological parameters. For the animal study, osteochondral lesions (diameter 7 mm) were created at the medial femoral condyles of the hind legs in 10 merino sheep. To achieve a chronic defect model, implantation of the ovine MSCs/hydrogel constructs was not performed until 6 weeks after defect creation. The 40 defects were divided into 4 treatment groups: (1) chondrogenically predifferentiated ovine MSC/hydrogel constructs (preMSC-gels), (2) undifferentiated ovine MSC/hydrogel constructs (unMSC-gels), (3) cell-free collagen hydrogels (CF-gels), and (4) untreated controls (UCs). Evaluation followed after 6 months. Results: With regard to proteoglycan content, cell count, gel contraction, apoptosis, compressive properties, and progress of chondrogenic differentiation, a differentiation period of 14 days in vitro was considered optimal. After 6 months in vivo, the defects treated with preMSC-gels showed significantly better histologic scores with morphologic characteristics of hyaline cartilage such as columnarization and presence of collagen type II. Conclusion: Matrix-associated autologous chondrocyte transplantation with predifferentiated MSCs may be a promising approach for repair of focal, chronic osteochondral defects. Clinical Relevance: The results suggest an encouraging method for future treatment of focal osteochondral defects to prevent progression to osteoarthritis.