36 research outputs found

    ENDPOINT POLICY ENFORCEMENT OPTIMIZATION AND DYNAMIC ENVIRONMENT ASSESSMENT DURING VIDEO CONFERENCES

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    Techniques are presented herein that support an audio and video policy framework that utilizes available sensors (encompassing both true Internet of things (IoT) sensors as well as the identification of beacons from mobile phones, consumer laptops, etc.) in conjunction with historical meeting data to suggest and enforce policies during teleconference meetings. By taking stock of the immediate environment surrounding a meeting participant, such a framework can enforce the audio and video options that are available to the user to align with secure practices and confidentiality protections. Aspects of the presented techniques support the identification of safe spaces through the use of Global Positioning System (GPS) coordinates, the detection of an increased presence of consumer devices for the purpose of suggesting and applying audio and visual security profiling, and the ability to send a notification to a telepresence user in the event that predicted meeting content may be too sensitive based on the environment of the meeting participant

    Improvement in the amino-acid microbial production

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    Amino-acid microbial production can be improved by a process modification or by inducing changes in the metabolism of the biocatalyst. These two approaches will be illustrated and discussed using the examples of glutamic acid and valine productions with Corynebacterium glutamicum.La production d'acide aminé par voie microbienne peut être améliorée soit en jouant sur le procédé de culture soit en modifiant le métabolisme du micro-organisme producteur. Ces 2 approches seront illustrées et discutées grâce à deux exemples d'acides aminés produits par Coryne-bacterium glutamicum: l'acide glutamique et la valine

    Combining metabolic flux analysis with proteomics to shed light on the metabolic flexibility: the case of Desulfovibrio vulgaris Hildenborough

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    IntroductionDesulfovibrio vulgaris Hildenborough is a gram-negative anaerobic bacterium belonging to the sulfate-reducing bacteria that exhibits highly versatile metabolism. By switching from one energy mode to another depending on nutrients availability in the environments„ it plays a central role in shaping ecosystems. Despite intensive efforts to study D. vulgaris energy metabolism at the genomic, biochemical and ecological level, bioenergetics in this microorganism remain far from being fully understood. Alternatively, metabolic modeling is a powerful tool to understand bioenergetics. However, all the current models for D. vulgaris appeared to be not easily adaptable to various environmental conditions.MethodsTo lift off these limitations, here we constructed a novel transparent and robust metabolic model to explain D. vulgaris bioenergetics by combining whole-cell proteomic analysis with modeling approaches (Flux Balance Analysis).ResultsThe iDvu71 model showed over 0.95 correlation with experimental data. Further simulations allowed a detailed description of D. vulgaris metabolism in various conditions of growth. Altogether, the simulations run in this study highlighted the sulfate-to-lactate consumption ratio as a pivotal factor in D. vulgaris energy metabolism.DiscussionIn particular, the impact on the hydrogen/formate balance and biomass synthesis is discussed. Overall, this study provides a novel insight into D. vulgaris metabolic flexibility

    ENABLING AND INTEGRATING DYNAMIC TELEPROMPTING CAPABILITIES FOR ONLINE MEETINGS

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    A natural and conversational style is difficult on video calls, particularly for the presenter. When the use of a teleprompter is included during such calls, the challenges are highlighted as the camera magnifies even the smallest movements, particularly in the eyes. To address such challenges, techniques are presented herein that support a “dynamic teleprompter” that may be seamlessly embedded within, and integrated into, a collaboration meeting platform. Such a dynamic teleprompter may move strategically (according to one or more of several different movement algorithms) around the speaker\u27s viewing area thus eliminating the problems of static teleprompters and allowing a presenter to project a much more natural and conversational speaking style. The resulting natural speaker motion and dynamism also provides a richer and more engaging meeting experience for the participants who are consuming the speaker\u27s content
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