Search results for "SDH"

Expression of the succinate dehydrogenase genes (sdhCAB) from the facultatively anaerobic paenibacillus macerans during aerobic growth

1998

Paenibacillus (formerly Bacillus) macerans is capable of succinate oxidation under oxic conditions and fumarate reduction under anoxic conditions. The reactions are catalyzed by different enzymes, succinate dehydrogenase (Sdh) and fumarate reductase (Frd). The genes encoding Sdh (sdhCAB) were analyzed. The gene products of sdhA and sdhB were similar to the subunits of known Sdh and Frd enzymes. The hydrophobic subunit SdhC showed close sequence similarity to the class of Sdh/Frd enzymes containing diheme cytochrome b. From the sdhCAB gene cluster two transcripts were produced, one comprising sdhCAB, the other sdhAB. The transcripts were found only during aerobic growth, and the amount was d…

Histochemical Geography and Ultrastructural Remarks of the Urinary Tract in Some Mammals

2008

Our investigations oriented towards the urinary tracts, particulary the bladder and ureter, were carried out by histochemical and ultrastructural studies by SEM and TEM observation. In this segment of urinary tract, by structural, ultrastructural and chemical analysis, have evinced variations related to different animal species (guinea pig, rabbit and rat). The bladder wall was considered from us for histochemical aspects related to hydrolytic lysosomial enzymes (Ac-Phase; Na-beta-Gase) and oxidative enzymes (SDH; Iso-DH; MADH) and ultrastructural aspect with TEM. The SEM observations showed the connection between morphovolumetric variations of uroepithelial cells and respiratory enzymatic …

Towards a multilingual database of sound effects

One of the most significant linguistic and technical challenges applied to subtitling for the deaf and hard of hearing persons (SDH) is the linguistic description of sound encapsulated within the space of subtitles. This subtitle typology is crucial to hearing impaired audiences, since its main purpose is to improve the level of comprehension and appreciation of the plot, character development and, in general, of the nuances of audiovisual products. The scope of this study is to investigate the possibilities and the applications of a multilingual database of sound effects. Such database will combine the most recent technologies in Respeaking, viewed as “the production of subtitles by means …

Accessible film festivals: a pilot study

2020

This work provides an overview of the state of accessibility at film festivals all over the world, identifies its selected audiences and also encourages innovative solutions in relation to linguistic and technical issues emerged during the processes of subtitling. The outbreak of the Covid-19 pandemic in 2020 has resulted in many film festivals all over the world being either cancelled, postponed or moved to online platforms. What has arisen is the question whether and to what extent people with sensorial disabilities, in particular deaf and hard-of-hearing and blind and visually impaired people, have been left behind or have been part of projects of inclusion. The accessibility of forms of…

Profiling deaf and hard-of-hearing users of subtitles for the deaf and hard-of-hearing in Italy: a questionnaire-based study

2012

The aim of this article is to present the results of a questionnaire-based study carried out as part of the author’s Master’s Degree dissertation about Subtitles for the Deaf and Hard-of-hearing (SDH). In particular, the need to gather specific information regarding audience design will be highlighted in the paper, since this research field has long been neglected in Italy. The questions were aimed at shedding light on the needs, cultural environment and world-view of Italian SDH users, by eliciting personal data as well as subtitlerelated information. Moreover, the 232 respondents were asked to suggest improvements to SDH services in Italy. Although these first results cannot allow definit…

Effects of the silencing of sorbitol dehydrogenase on sugar partitioning in vegetative sinks in apple

2011

Succinate dehydrogenase functioning by a reverse redox loop mechanism and fumarate reductase in sulphate-reducing bacteria.

2006

Sulphate- or sulphur-reducing bacteria with known or draft genome sequences (Desulfovibrio vulgaris, Desulfovibrio desulfuricans G20, Desulfobacterium autotrophicum [draft], Desulfotalea psychrophila and Geobacter sulfurreducens) all contain sdhCAB or frdCAB gene clusters encoding succinate : quinone oxidoreductases. frdD or sdhD genes are missing. The presence and function of succinate dehydrogenase versus fumarate reductase was studied. Desulfovibrio desulfuricans (strain Essex 6) grew by fumarate respiration or by fumarate disproportionation, and contained fumarate reductase activity. Desulfovibrio vulgaris lacked fumarate respiration and contained succinate dehydrogenase activity. Succi…