Essays about: "defense system"

Showing result 21 - 25 of 149 essays containing the words defense system.

  1. 21. The Binding Mechanism of Carbapenems in the Class A beta-lactamase IMI-1 : A Molecular Dynamics Study of Ligand Stability

    University essay from Uppsala universitet/Biokemi

    Author : Isabell Lindahl; [2022]
    Keywords : antibiotic resistance; IMI-1; betalactamase; Carbapenemase; free energy; LIE; linear interaction energy; β-lactamase; meropenem; biapenem; imipenem; active site;

    Abstract : Antibiotic resistance is a global and accelerating matter. Over time, the bacteria have evolved several defense mechanisms against the antibiotics. One of the defense mechanisms is that the bacteria can produce enzymes with the ability to hydrolyze the characteristic b-lactam ring of the antibiotics. These enzymes are called b-lactamases. READ MORE

  3. 22. A Game-theoretical Framework for Byzantine-Robust Federated Learning

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Wanyun Xie; [2022]
    Keywords : Game theory; distributed robust learning; training-time attacks; exploration-exploitation tradeoff; Spelteori; distribuerad robust inlärning; attacker på träningstiden; kompromiss mellan utforskning och exploatering;

    Abstract : The distributed nature of Federated Learning (FL) creates security-related vulnerabilities including training-time attacks. Recently, it has been shown that well-known Byzantine-resilient aggregation schemes are indeed vulnerable to an informed adversary who has access to the aggregation scheme and updates sent by clients. READ MORE

  4. 23. Trade-offs in CRISPR Immunity against Mobile Genetic Elements

    University essay from Uppsala universitet/Molekylär systembiologi

    Author : Johanna Cederblad; [2022]
    Keywords : CRISPR; microfluidics; fluorescent microscopy; RP4 conjugative plasmid;

    Abstract : The prokaryotic adaptive immune system CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) is a defense mechanism that helps to protect the prokaryotic cell from invading mobile genetic elements. This project was performed at Uppsala University and served to answer whether the expression of Cascade, which is part of the CRISPR defense system, will have a negative effect on the cell that expresses it and to also determine whether the CRISPR defense system is effective enough to stop the spread of a conjugative plasmid. READ MORE

  5. 24. Visualizations in Augmented Reality for Multiple Real-Time Unmanned Aerial Vehicle Video Feeds : Visualizing Occluded and Out-of-View Entities

    University essay from Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Author : Måns Bränneby; Oliver Gerfort; [2022]
    Keywords : Augmented reality; UAV; Visualization; Systematic literature review; Experiment; Augmenterad verklighet; UAV; Visualisering; Systematic literature review; Experiment;

    Abstract : Background. The use of Unmanned Aerial Vehicles (UAVs) is today prevalent in both defense applications as well as in civilian tasks and is predicted to have a major socio-economic impact [22]. READ MORE

  6. 25. Criminal organizations territorial control and violence against civilians

    University essay from Uppsala universitet/Institutionen för freds- och konfliktforskning

    Author : Carl Vosloh Zea; [2022]
    Keywords : Criminal organizations; organized crime; territorial control; criminal-civilian governance; criminal violence; Tarazá; Zaragoza;

    Abstract : Criminal organizations have been commonly associated with violence and disorder. Despite there being truth in that, what is more concerning is their growing influence. Criminal violence has exceeded traditional forms of political violence in the world. READ MORE