Sökning: "Analytical matrix"

Visar resultat 11 - 15 av 77 uppsatser innehållade orden Analytical matrix.

1. 11. Monitoring illicit drugs of abuse in wastewater from Umeå, Örebro, Örebro University and Örebro University Hospital

   Kandidat-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

   Författare :Tove Slettvoll; [2022]
   Nyckelord :;

   Sammanfattning : Illicit drugs constitute a class of contaminants whose emissions to the environment has drawn attention due their potent pharmacological and biological activities. The monitoring of illicit drugs in wastewater and surface waters provides a powerful tool to investigate the presence, trends and to estimate the consumption of these psychoactive substances at the community level. LÄS MER

3. 12. Screening for carbapenemase-associated biomarkers in Klebsiella oxytoca using matrixassisted laser desorption/ionization time of flight mass spectrom

   Kandidat-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

   Författare :Hannah Uppström; [2022]
   Nyckelord :MALDI-TOF MS; carbapenems; Verona integron-encoded metallo-β-lactamase; carbapenem resistance; AST biomarkers;

   Sammanfattning : Antibiotic resistant bacteria are threatening human health, and the resistance is progressingfaster than the development of new antimicrobial compounds. Antibiotic resistant infections cost enormous sums of money and resources, but most importantly human lives. LÄS MER

4. 13. Reducing Polarization in Opinion Networks in the Presence of Stubborn Leaders

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

   Författare :Samuel Selleck; [2022]
   Nyckelord :Technology and Engineering;

   Sammanfattning : We study the problem of reducing polarization (variance) of opinions at stationarity in a directed weighted graph with node set divided into two groups: stubborn, initialized with a fixed opinion and regular who repeatedly update their opinion to the average of their out-neighbors, known as the DeGroot model with stubborn nodes. We show how the polarization can be minimized for a number of simple constraints, but that the problem in general is not convex. LÄS MER

5. 14. Concept development and design ofretractable hydrofoil systems

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Andreas Lundin; Richard Löfstedt Eriksson; [2021]
   Nyckelord :Design; electric boat; hydrofoil; retraction mechanism;

   Sammanfattning : The Swedish Sea Rescue Society (SSRS) is a non-profit organisation which performs themajority of rescue missions on Swedish waters. SSRS together with many other companies arecurrently under development of a novel boat design which is battery powered. LÄS MER

7. 15. Implementation of a straightforward derivatizationmethod for the simultaneous analysis of short chainfatty acids and tricarboxylic acid cycle metabolitesby LC-qToF-MS.

   Kandidat-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

   Författare :Renée Levisson; [2021]
   Nyckelord :Short-chain fatty acids; tricarboxylic acid TCA cycle; chemical derivatization; 3-nitrophenylhydrazine;

   Sammanfattning : Short-chain fatty acids (SCFAs) and the tricarboxylic acid (TCA) cycle metabolites aresmall hydrophilic compounds that play crucial roles in biological species ranging fromenergy metabolism, immune homeostasis to cellular signalling. There is a need for reliableand precise quantification of these metabolites in biological matrices as they can providecrucial information of metabolic status and potentially be used as diagnostic biomarkersfor different pathological and physiological conditions. LÄS MER