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Authors = Arne Dekker

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33 pages, 11871 KiB  
Review
Hybrid Integrated Semiconductor Lasers with Silicon Nitride Feedback Circuits
by Klaus-J. Boller, Albert van Rees, Youwen Fan, Jesse Mak, Rob E. M. Lammerink, Cornelis A. A. Franken, Peter J. M. van der Slot, David A. I. Marpaung, Carsten Fallnich, Jörn P. Epping, Ruud M. Oldenbeuving, Dimitri Geskus, Ronald Dekker, Ilka Visscher, Robert Grootjans, Chris G. H. Roeloffzen, Marcel Hoekman, Edwin J. Klein, Arne Leinse and René G. Heideman
Photonics 2020, 7(1), 4; https://doi.org/10.3390/photonics7010004 - 21 Dec 2019
Cited by 116 | Viewed by 20549
Abstract
Hybrid integrated semiconductor laser sources offering extremely narrow spectral linewidth, as well as compatibility for embedding into integrated photonic circuits, are of high importance for a wide range of applications. We present an overview on our recently developed hybrid-integrated diode lasers with feedback [...] Read more.
Hybrid integrated semiconductor laser sources offering extremely narrow spectral linewidth, as well as compatibility for embedding into integrated photonic circuits, are of high importance for a wide range of applications. We present an overview on our recently developed hybrid-integrated diode lasers with feedback from low-loss silicon nitride (Si 3 N 4 in SiO 2 ) circuits, to provide sub-100-Hz-level intrinsic linewidths, up to 120 nm spectral coverage around a 1.55 μ m wavelength, and an output power above 100 mW. We show dual-wavelength operation, dual-gain operation, laser frequency comb generation, and present work towards realizing a visible-light hybrid integrated diode laser. Full article
(This article belongs to the Special Issue Semiconductor Laser Dynamics: Fundamentals and Applications)
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23 pages, 401 KiB  
Article
The Needs of LGBTI People Regarding Health Care Structures, Prevention Measures and Diagnostic and Treatment Procedures: A Qualitative Study in a German Metropolis
by Ute Lampalzer, Pia Behrendt, Arne Dekker, Peer Briken and Timo O. Nieder
Int. J. Environ. Res. Public Health 2019, 16(19), 3547; https://doi.org/10.3390/ijerph16193547 - 22 Sep 2019
Cited by 16 | Viewed by 5985
Abstract
(1) Background: Studies indicate that lesbian, gay, bisexual, transgender and intersex (LGBTI) people constantly face challenges and disadvantages in the health care system that prevent them from getting the best possible patient-centered care. However, the present study is the first to focus on [...] Read more.
(1) Background: Studies indicate that lesbian, gay, bisexual, transgender and intersex (LGBTI) people constantly face challenges and disadvantages in the health care system that prevent them from getting the best possible patient-centered care. However, the present study is the first to focus on LGBTI-related health in a major German metropolis. It aimed to investigate health care structures, prevention measures and diagnostic as well as treatment procedures that LGBTI individuals need in order to receive appropriate patient-centered health care and health promotion. (2) Methods: Following a participatory approach, five expert interviews with LGBTI people with multiplier function, i.e., people who have a key role in a certain social milieu which makes them able to acquire and spread information in and about this milieu, and three focus groups with LGBTI people and/or health professionals were conducted. Qualitative data were analyzed according to the principles of content analysis. (3) Results: The specific needs of LGBTI individuals must be recognized as a matter of course in terms of depathologization, sensitization, inclusion, and awareness. Such an attitude requires both basic knowledge about LGBTI-related health issues, and specific expertise about sufficient health care services for each of the minorities in the context of sex, sexual orientation and gender identity. (4) Conclusions: For an appropriate approach to LGBTI-centered health care and health promotion, health professionals will need to adopt a better understanding of specific soft and hard skills. Full article
(This article belongs to the Special Issue Health and Wellbeing in Sexual Orientation and Gender Identity)
12 pages, 430 KiB  
Article
(Don’t) Look at Me! How the Assumed Consensual or Non-Consensual Distribution Affects Perception and Evaluation of Sexting Images
by Arne Dekker, Frederike Wenzlaff, Anne Daubmann, Hans O. Pinnschmidt and Peer Briken
J. Clin. Med. 2019, 8(5), 706; https://doi.org/10.3390/jcm8050706 - 17 May 2019
Cited by 15 | Viewed by 6162
Abstract
The non-consensual sharing of an intimate image is a serious breach of a person’s right to privacy and can lead to severe psychosocial consequences. However, little research has been conducted on the reasons for consuming intimate pictures that have been shared non-consensually. This [...] Read more.
The non-consensual sharing of an intimate image is a serious breach of a person’s right to privacy and can lead to severe psychosocial consequences. However, little research has been conducted on the reasons for consuming intimate pictures that have been shared non-consensually. This study aims to investigate how the supposed consensual or non-consensual distribution of sexting images affects the perception and evaluation of these images. Participants were randomly assigned to one of two groups. The same intimate images were shown to all participants. However, one group assumed that the photos were shared voluntarily, whereas the other group were told that the photos were distributed non-consensually. While the participants completed several tasks such as rating the sexual attractiveness of the depicted person, their eye-movements were being tracked. The results from this study show that viewing behavior and the evaluation of sexting images are influenced by the supposed way of distribution. In line with objectification theory men who assumed that the pictures were distributed non-consensually spent more time looking at the body of the depicted person. This so-called ‘objectifying gaze’ was also more pronounced in participants with higher tendencies to accept myths about sexual aggression or general tendencies to objectify others. In conclusion, these results suggest that prevention campaigns promoting ‘sexting abstinence’ and thus attributing responsibility for non-consensual distribution of such images to the depicted persons are insufficient. Rather, it is necessary to emphasize the illegitimacy of the non-consensual distribution of sexting images, especially among male consumers of the material. Full article
(This article belongs to the Special Issue Novel Research in Sexuality and Mental Health)
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11 pages, 211 KiB  
Review
Uncovering Female Child Sexual Offenders—Needs and Challenges for Practice and Research
by Safiye Tozdan, Peer Briken and Arne Dekker
J. Clin. Med. 2019, 8(3), 401; https://doi.org/10.3390/jcm8030401 - 22 Mar 2019
Cited by 29 | Viewed by 26626
Abstract
This article provides a short literature overview on female child sexual offenders (FCSO) focusing on the discrepancy between prevalence rates from different sources, characteristics of FCSO and their victims, as well as the societal “culture of denial” surrounding these women. FCSO are a [...] Read more.
This article provides a short literature overview on female child sexual offenders (FCSO) focusing on the discrepancy between prevalence rates from different sources, characteristics of FCSO and their victims, as well as the societal “culture of denial” surrounding these women. FCSO are a powerful social taboo. Even professionals in the healthcare or justice system were shown to respond inappropriately in cases of child sexual abuse committed by women. As a result, offences of FCSO may be underreported and therefore difficult to research. The lack of scientific data on FSCO lowers the quality of child protection and treatment services. We therefore deem it particularly necessary for professionals in health care to break the social taboo that is FCSO and to further stimulate research on the topic of FCSO. We provide some general implications for professionals in health care systems as well as specific recommendations for researchers. We end with an overall conclusion. Full article
(This article belongs to the Special Issue Novel Research in Sexuality and Mental Health)
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