Franke, Robert

[["dc.bibliographiccitation.firstpage","2929"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","Aquaculture Research"],["dc.bibliographiccitation.lastpage","2937"],["dc.bibliographiccitation.volume","46"],["dc.contributor.author","Franke, Robert"],["dc.contributor.author","Hoerstgen-Schwark, Gabriele"],["dc.date.accessioned","2018-11-07T09:48:42Z"],["dc.date.available","2018-11-07T09:48:42Z"],["dc.date.issued","2015"],["dc.description.abstract","The social environment plays a major role in the control of growth in many crustaceans, but little is known on the mechanisms involved. Two- and three-year-old noble crayfish, Astacus astacus are strictly nocturnally active. In the present article, we studied social effects on the pattern of nocturnal activity, represented by the time which the animals spent outside shelters. For this purpose, the activity of groups of uniformly large (dominant') and uniformly small (subordinate') individuals were recorded at different densities both separately and in mixed set-ups. In crowded laboratory cultures, the presence of larger (dominant) conspecifics was found to reduce the time which smaller (subordinate) individuals spent outside shelters in search of food and feeding by about one-third. It is suggested that this asymmetric inhibitory effect is an element of the functional chain which ultimately results in an extremely wide variation in individual growth rates of communally reared A.astacus. The relevance of the findings to crayfish aquaculture is discussed."],["dc.identifier.doi","10.1111/are.12447"],["dc.identifier.isi","000363594500010"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35360"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1365-2109"],["dc.relation.issn","1355-557X"],["dc.title","Influence of social factors on the nocturnal activity pattern of the noble crayfish, Astacus astacus (Crustacea, Decapoda) in recirculating aquaculture systems"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","103"],["dc.bibliographiccitation.journal","Aquaculture"],["dc.bibliographiccitation.lastpage","110"],["dc.bibliographiccitation.volume","446"],["dc.contributor.author","Franke, Robert"],["dc.contributor.author","Hoerstgen-Schwark, Gabriele"],["dc.date.accessioned","2018-11-07T09:53:05Z"],["dc.date.available","2018-11-07T09:53:05Z"],["dc.date.issued","2015"],["dc.description.abstract","Most crayfish species exhibit behavioral traits (solitary lifestyle, high aggressiveness, establishment of social hierarchies) which in intensive aquaculture systems result in low survival due to cannibalism and reduced overall growth. In addition to selective breeding programs, this situation may be improved by identifying culture conditions (e.g., light regimes) which can alleviate the negative impact of specific behavioral patterns on an effective crayfish production. The present experiments demonstrate a pronounced nocturnality of male noble crayfish Astacus astacus. The circadian system seems to be of rather little relevance to the daily pattern of the collective activity in crowded crayfish groups. Parameters of the light regime (the L/D-ratio of 24-h light-dark cycles, light intensity, background illumination during nighttime) were shown to have a crucial and immediate influence on (i) the daily temporal pattern of activity, (ii) the 'effective density' (density of individuals which are simultaneously active), and (iii) the overall daily amount of activity. Except for individuals at the verge of molting, activities were restricted to the scotophase, largely independent of the LD-ratio. The effective density was negatively, the overall daily amount of activity positively, correlated with the length of the scotophase. Both parameters decreased significantly under a dim nocturnal background illumination. An optimal combination of high overall daily activity and low effective density was found under a short-day photoperiod of LD 8:16. As in the long run overall daily amount of activity and effective density may be relevant to growth and survival, respectively, manipulations of the light regime are suggested to be a promising approach to improve the efficiency of a commercial crayfish production. The present results may be useful in designing appropriate long-term experiments which actually measure survival and growth. Statement of relevance Light as potential factor to improve production in RASs. (C) 2015 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.aquaculture.2015.05.007"],["dc.identifier.isi","000355672000016"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/36255"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","1873-5622"],["dc.relation.issn","0044-8486"],["dc.title","Control of activity patterns in crowded groups of male noble crayfish Astacus astacus (Crustacea, Astacidea) by light regimes: A way to increase the efficiency of crayfish production?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Journal of Clinical Monitoring and Computing"],["dc.contributor.author","Bräuer, A."],["dc.contributor.author","Franke, R."],["dc.contributor.author","von Hammerstein-Equord, A."],["dc.date.accessioned","2021-04-14T08:24:42Z"],["dc.date.available","2021-04-14T08:24:42Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1007/s10877-020-00520-z"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81390"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1573-2614"],["dc.relation.issn","1387-1307"],["dc.title","Conductive heating mattress leads to ECG changes that mimic pacemaker spikes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","451"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Aquaculture Research"],["dc.bibliographiccitation.lastpage","461"],["dc.bibliographiccitation.volume","44"],["dc.contributor.author","Franke, Robert"],["dc.contributor.author","Wessels, Stephan"],["dc.contributor.author","Hoerstgen-Schwark, Gabriele"],["dc.date.accessioned","2018-11-07T09:28:34Z"],["dc.date.available","2018-11-07T09:28:34Z"],["dc.date.issued","2013"],["dc.description.abstract","High mortality from cannibalism in crowded cultures of the noble crayfish (Astacus astacus L.) was the reason why the efforts for an intensive production of this species in the 1980s were largely stopped. In the present study, 14- to 15-month-old juveniles of A.astacus were cultured in tanks of an indoor recirculation system under constant summer conditions' (19 degrees C, LD 16:8) from early August to late January. The animals continued to moult and grow, indicating that the absence of these processes in the field from autumn to late spring does not involve any endogenous programming. The experimental design (suitable hiding places in excess, highly diversified diet, and special daily and lunar light regimes) ensured high survival (>90%) and growth rates which were largely independent of stocking rate (1560individuals per m2). Moulting occurred during daytime which allowed freshly moulted animals to escape from cannibalistic attacks of their nocturnal conspecifics. There is a first indication that an artificial moonlight cycle can synchronize moulting events (maximum around new moon'), in this way contributing to a further decrease in mortality. The results encourage a resumption of efforts for an intensive production of A.astacus in indoor recirculation systems."],["dc.identifier.doi","10.1111/j.1365-2109.2011.03052.x"],["dc.identifier.isi","000314566200014"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30808"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1355-557X"],["dc.title","Enhancement of survival and growth in crowded groups: the road towards an intensive production of the noble crayfish Astacus astacus L. in indoor recirculation systems"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","339"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Journal of Medical Cases"],["dc.bibliographiccitation.lastpage","341"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Emmert, Alexander"],["dc.contributor.author","Robert, Franke"],["dc.contributor.author","Bohnenberger, Hanibal"],["dc.contributor.author","Sahlmann, Carsten-Oliver"],["dc.contributor.author","Schondube, Friedrich A."],["dc.contributor.author","Egan, Michael"],["dc.contributor.author","Tirilomis, Theodor"],["dc.contributor.author","Friedrich, Martin"],["dc.contributor.author","Danner, Bernhard C."],["dc.contributor.author","Hinterthaner, Marc"],["dc.date.accessioned","2019-07-09T11:41:24Z"],["dc.date.available","2019-07-09T11:41:24Z"],["dc.date.issued","2015"],["dc.description.abstract","Isolated mediastinal Kocuria rosea infection is a rare condition and presentation can be variable. We report an unusual case of Kocuria rosea infection which presented as solitary pulmonary nodules and isolated lymph node swelling, entirely confined within the tracheal bifurcation and 18-fluoredeoxyglucose position emission tomography and computed tomography (18FDG PET/CT)-avid, thereby mimicking a neoplastic lesion. Owing to the large differential diagnosis, which includes diseases such as pulmonary neoplasia and lymph node metastases, a biopsy via mediastinoscopy was to be attempted, so hopefully avoiding thoracotomy. Histopathology analysis of the resected mediastinal lymph nodes (MLNs) demonstrated no malignant cells, but rather necrotizing MLNs, which is classically associated with Kocuria rosea infection. The patient was asymptomatic and biopsy allowed a precise diagnosis. Kocuria rosea infection is rare; it should be considered when FDG PET shows intense FDG uptake in non-regionally swollen lymph nodes."],["dc.identifier.doi","10.14740/jmc2122w"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12016"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/58420"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1923-4163"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Isolated Mediastinal Kocuria rosea Infection Mimicking Malignancies"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e68653"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","PLoS ONE"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Franke, Robert"],["dc.contributor.author","Hoerstgen-Schwark, Gabriele"],["dc.date.accessioned","2018-11-07T09:23:10Z"],["dc.date.available","2018-11-07T09:23:10Z"],["dc.date.issued","2013"],["dc.description.abstract","Juvenile noble crayfish, Astacus astacus (Crustacea, Astacidea) in the second year of age were kept in the laboratory for a twelve-month period under continuing \"summer conditions\" (LD 16: 8, 19 degrees C). Molting processes in this population could be synchronized by artificial moonlight cycles. Peaks of exuviations occurred at \"new moons\". Males showed a slightly higher degree of synchronization than females. A phase-shift of the artificial lunar cycle in relation to the natural cycle resulted in a corresponding shift of the molting cycle. This clearly demonstrates that changes in the nocturnal light regime provide the primary external information for the lunar-monthly molting rhythm. There is a first indication that lunar photic stimuli do not act directly but as a zeitgeber which entrains an endogenous molting rhythm to the lunar cycle. Moreover, the results of the long-term experiments suggest that the hibernal resting period of A. astacus in the field (no molts between October and April) may also involve some endogenous programming. Continuing artificial summer conditions can delay but not completely suppress this resting period. The adaptive significance of the phenomena and how the findings may be applied to improve the management of crowded crayfish stocks are discussed."],["dc.identifier.doi","10.1371/journal.pone.0068653"],["dc.identifier.isi","000321271900038"],["dc.identifier.pmid","23840899"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/10604"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29517"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Public Library Science"],["dc.relation.issn","1932-6203"],["dc.rights","CC BY 2.5"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.5"],["dc.title","Lunar-Rhythmic Molting in Laboratory Populations of the Noble Crayfish Astacus astacus (Crustacea, Astacidea): An Experimental Analysis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","362"],["dc.bibliographiccitation.issue","05"],["dc.bibliographiccitation.journal","The Thoracic and Cardiovascular Surgeon"],["dc.bibliographiccitation.lastpage","366"],["dc.bibliographiccitation.volume","65"],["dc.contributor.author","Emmert, Alexander"],["dc.contributor.author","Franke, Robert"],["dc.contributor.author","Brandes, Ivo"],["dc.contributor.author","Hinterthaner, Marc"],["dc.contributor.author","Danner, Bernhard"],["dc.contributor.author","Bauer, Martin"],["dc.contributor.author","Bräuer, Anselm"],["dc.date.accessioned","2020-12-10T18:12:15Z"],["dc.date.available","2020-12-10T18:12:15Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1055/s-0036-1583766"],["dc.identifier.eissn","1439-1902"],["dc.identifier.issn","0171-6425"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74300"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Comparison of Conductive and Convective Warming in Patients Undergoing Video-Assisted Thoracic Surgery: A Prospective Randomized Clinical Trial"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]