Wertsicherungsvereinbarung – Angemessenheitsprüfung bei Altverträgen

Eine im Geltungsbereich des MRG erfolgte einseitige gesetzliche Erh?hung des vor Inkrafttreten des MRG zul?ssig frei vereinbarten Hauptmietzinses ist nicht dem Fall gleichzuhalten, dass die Wertsicherungsvereinbarung auf den ursprünglich zul?ssig frei vereinbarten Hauptmietzins anzuwenden ist. Vielmehr liegt im Fall einer einseitigen gesetzlichen Erh?hung des Hauptmietzinses (hier aufgrund des Vorliegens des Tatbestandes des § 12 a Abs 3 MRG) eben keine auf ihre Angemessenheit nicht überprüfbare Vereinbarung in einem vor dem 1. 1. 1982 geschlossenen "Altvertrag" vor. Die "Kombination" dahin, dass der im Geltungsbereich des MRG gesetzlich erh?hte nunmehrige angemessene Hauptmietzins aufgrund der ursprünglichen Wertsicherungsvereinbarung unüberprüfbar erh?ht werden kann, also ein überschreiten der Angemessenheitsgrenze des § 16 Abs 1 MRG durch die Anwendung der alten Wertsicherungsvereinbarung nicht geltend gemacht werden kann, würde zu einem unbilligen Ergebnis führen.     

Zum Eintrittsrecht des homosexuellen Lebensgefährten in den Mietvertrag

Kürzlich hat der OGH das Eintrittsrecht des homosexuellen Lebensgef?hrten in den Mietvertrag unter Berufung auf die MRK-konform vorzunehmende Auslegung des § 14 Abs 3 MRG grunds?tzlich anerkannt. Der folgende Beitrag setzt sich n?her mit der aktuellen Entscheidung unter Berücksichtigung der Vorjudikatur und des neueren Schrifttums auseinander und bezieht dazu ausführlich Stellung.     

A preliminary assessment of the effect of PreCR™ DNA repair treatment on mixture ratios in two person mixtures

In this study, DNA extracted from known buccal samples was combined into two component mixture samples. These were subjected to UV exposure prior to their amplification with the Promega PowerPlex® 16HS amplification kit, and subsequent capillary electrophoresis on the ABI 3130xl instrument. Damaged samples were subjected to enzymatic repair treatment and retested to assess the amount of repair. Data showed that there is fidelity associated with the application with profile concordance after its use, and a corresponding increase in the amount of recovered alleles post damage. Results also showed changes in the stochastic relationship between mixture components that appear to be induced by the repair process itself. The mixture ratios of DNA samples were altered from an approximate original 1:3 ratio, to a ratio of 1:2 or greater. This variation can have a significant effect regarding the ability to reliably de-convolute DNA mixtures that have been subjected to the repair process.     

Profiling the scent of weathered training aids for blood-detection dogs

At outdoor crime scenes, cadaver-detection and blood-detection dogs may be tasked with locating blood that is days, weeks or months old. Although it is known that the odour profile of blood will change during this time, it is currently unknown how the profile changes when exposed to the environment. Such variables must be studied in order to understand when the odour profile is no longer detectable by the scent-detection dogs and other crime scene tools should be implemented. In this study, blood was deposited onto concrete and varnished wood surfaces and weathered in an outdoor environment over a three-month period. Headspace samples were collected using solid phase microextraction (SPME) and analysed using comprehensive two-dimensional gas chromatography – time-of-flight mass spectrometry (GC×GC–TOFMS). The chemical odour profiles were compared with the behavioural responses of cadaver-detection and blood-detection dogs during training. Data interpretation using principal component analysis (PCA) and hierarchical cluster analysis (HCA) established that the blood odour could no longer be detected using SPME–GC×GC–TOFMS after two months of weathering on both surfaces. Conversely, the blood-detection dogs had difficulty locating the blood samples after one month of weathering on concrete and after one week of weathering on varnished wood. The scent-detection dogs evaluated herein had not been previously exposed to environmentally weathered blood samples during training. Given that this study was conducted to test the dogs' baseline abilities, it is expected that with repeated exposure, the dogs' capabilities would likely improve. The knowledge gained from this study can assist in providing law enforcement with more accurate training aids for blood-detection dogs and can improve their efficiency when deployed to outdoor crime scenes.     

镇眩汤对梅尼埃病大鼠血管加压素的影响

目的 探讨中药复方镇眩汤治疗梅尼埃病的机制。方法 采用阻塞前庭导水管的方法复制梅尼埃病模型，观察大鼠用药前后听觉诱发电位听阈的变化及大鼠血浆中血管加压素的含量。结果 与假手术组比较，模型组大鼠听觉诱发电位听阈和血浆血管加压素水平显著升高；与模型组比较，镇眩汤高、中剂量组大鼠听阈和血管加压管水平显著降低（P＜0.05）。结论 镇眩汤治疗梅尼埃病的机制与其调节血浆血管加压素有关。