LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Zurück zur letzten Suche Suchhistorie
Erweiterte Suche

Ihre letzten Suchen

  1. AU="Brunner, David"
  2. AU="Monserrat, Nuria"
  3. AU="Dufresne, Philippe J"
  4. AU="Dickey, Erin M"
  5. AU="Alessia Nava"
  6. AU="Yamoah, Peter"
  7. AU="Solit, David"
  8. AU="Raymond, Benjamin"
  9. AU="Maddi, Abhiram"
  10. AU="Rodríguez, Johanna G"
  11. AU="Frans, J"
  12. AU="Elisa Palazzari"

Suchergebnis

Treffer 1 - 10 von insgesamt 73

Suchoptionen

  1. Artikel ; Online: Adaptive Lissajous scanning pattern design by phase modulation.

    Brunner, David / Yoo, Han Woong / Schroedter, Richard / Schitter, Georg

    Optics express

    2021  Band 29, Heft 18, Seite(n) 27989–28004

    Abstract: This paper proposes a phase modulation method for Lissajous scanning systems, which provides adaptive scan pattern design without changing the frame rate or the field of view. Based on a rigorous analysis of Lissajous scanning, phase modulation ... ...

    Abstract This paper proposes a phase modulation method for Lissajous scanning systems, which provides adaptive scan pattern design without changing the frame rate or the field of view. Based on a rigorous analysis of Lissajous scanning, phase modulation constrains and a method for pixel calculation are derived. An accurate and simple metric for resolution calculation is proposed based on the area spanned by neighboring pixels and used for scan pattern optimization also considering the scanner dynamics. The methods are implemented using MEMS mirrors for verification of the adaptive pattern shaping, where a 5-fold resolution improvement in a defined region of interest is demonstrated.
    Sprache Englisch
    Erscheinungsdatum 2021-09-23
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.430171
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  2. Artikel ; Online: Elastomer coils for wearable MR detection.

    Port, Andreas / Luechinger, Roger / Brunner, David O / Pruessmann, Klaas P

    Magnetic resonance in medicine

    2021  Band 85, Heft 5, Seite(n) 2882–2891

    Abstract: Purpose: To explore the use of conductive elastomer for MR signal detection and the utility of this approach for wearable detector arrays.: Methods: An elastomer filled with silver microparticles was used to form stretchable radiofrequency coils for ... ...

    Abstract Purpose: To explore the use of conductive elastomer for MR signal detection and the utility of this approach for wearable detector arrays.
    Methods: An elastomer filled with silver microparticles was used to form stretchable radiofrequency coils for MR detection. Their electrical performance in terms of the Q
    Results: The elastomer coils proved highly stretchable and mechanically robust. Upon repeated stretching by 20%, a medium-sized coil element settled at Q
    Conclusion: Conductive elastomer is a viable material for MR detection. Coils made from this material reconcile high stretchability and adequate electrical performance with ease of manufacturing. Conductive elastomer also offers inherent restoring forces and is readily washable and sanitizable, making it an excellent basis of wearable detector front ends.
    Mesh-Begriff(e) Elastomers ; Electric Conductivity ; Phantoms, Imaging ; Signal-To-Noise Ratio ; Wearable Electronic Devices
    Chemische Substanzen Elastomers
    Sprache Englisch
    Erscheinungsdatum 2021-01-12
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 605774-3
    ISSN 1522-2594 ; 0740-3194
    ISSN (online) 1522-2594
    ISSN 0740-3194
    DOI 10.1002/mrm.28662
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

    Kategorien

    Verfügbar in ZB MED Köln/Königswinter

    Zs.A 1959: Hefte anzeigen Standort:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  3. Artikel ; Online: Using the hemolysis index of Abbott's Alinity c for the measurement of plasma free hemoglobin in ECMO patients.

    Bürki, Carmen / Volleberg, Martin / Brunner, David / Schmugge, Markus / Hersberger, Martin

    Clinical biochemistry

    2021  Band 100, Seite(n) 67–70

    Abstract: Objectives: Quantitative measurement of plasma free hemoglobin (fHb) concentrations is essential for monitoring pediatric ECMO patients, since hemolysis has a great impact on the patient's clinical outcome. The aim of this study was to validate the ... ...

    Abstract Objectives: Quantitative measurement of plasma free hemoglobin (fHb) concentrations is essential for monitoring pediatric ECMO patients, since hemolysis has a great impact on the patient's clinical outcome. The aim of this study was to validate the hemolysis index (HI) assay on Abbott's Alinity c system as a quantitative method to measure fHb.
    Methods: The performance of the HI assay, based on an automated spectrophotometric method recording the absorption at four different wavelength pairs, was evaluated using the 20 × 2 × 2 design according to the CLSI-EP05-A3 guidelines. LLOQ and LLOD were calculated according to CLSI-EP17 guidelines with CVs set to 10% and 20%, respectively. Furthermore, the method was tested for interferences with bilirubin and Intralipid®.
    Results: Linearity was ensured over an analytical measurement range of 30-7250 mg/L and the calculated LLOQ and LLOD were 80 mg/L and 50 mg/L, respectively. Intra-run and total imprecisions ranged from 0.9-3.4% and 1.0-3.4%, respectively. The HI assay correlated well with the Harboe method (HI (mg/L) = 0.998 * fHb (mg/L) + 28 mg/L, R = 0.998, n = 50) and interference testing showed no impact of bilirubin and Intralipid® up to 709 mg/L and 5580 mg/L, respectively.
    Conclusions: The HI assay on Abbott's Alinity c system allows a precise and accurate determination of fHb concentrations with no significant interferences in a simple, rapid and cost-effective way.
    Mesh-Begriff(e) Bilirubin/blood ; Child ; Extracorporeal Membrane Oxygenation ; Female ; Hematologic Tests/instrumentation ; Hemoglobins/metabolism ; Hemolysis ; Humans ; Male
    Chemische Substanzen Hemoglobins ; Bilirubin (RFM9X3LJ49)
    Sprache Englisch
    Erscheinungsdatum 2021-11-23
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 390372-2
    ISSN 1873-2933 ; 0009-9120
    ISSN (online) 1873-2933
    ISSN 0009-9120
    DOI 10.1016/j.clinbiochem.2021.11.010
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

    Kategorien

    Verfügbar in ZB MED Köln/Königswinter

    Zs.A 624: Hefte anzeigen Standort:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  4. Artikel ; Online: SVD analysis of Array transmission and reception and its use for bootstrapping calibration.

    Brunner, David O / Pruessmann, Klaas P

    Magnetic resonance in medicine

    2016  Band 76, Heft 6, Seite(n) 1730–1740

    Abstract: Purpose: Noise-optimal reconstruction of array transmitter calibrations would ideally require knowledge of the receive array sensitivities which can often only be measured once the transmitter is calibrated to provide sufficient coverage. This poses ... ...

    Abstract Purpose: Noise-optimal reconstruction of array transmitter calibrations would ideally require knowledge of the receive array sensitivities which can often only be measured once the transmitter is calibrated to provide sufficient coverage. This poses often a problem in bootstrapping transmit-receive arrays particularly at ultrahigh fields.
    Methods: Said problem is resolved by formulating the local transmit-receive efficiency of the array setup as a bilinear form and deriving therefrom a noise-optimal, joint reconstruction of the calibration data resulting in the relative sensitivities of the used transmitters and receivers.
    Results: Retrieval and reconstruction of parallel transmission calibration data in phantoms and in vivo are presented using an eight-channel parallel transmit setup with up to 16 receivers using strip-line TR arrays and parallel transmission by traveling waves.
    Conclusion: Data sets from calibration scans are reconstructed robustly and with optimal signal-to-noise ratio. The found array signal gain is furthermore a direct performance measure for array transmitter and receiver combinations. The concomitantly obtained image was shown to have maximum coverage of the subject. Magn Reson Med 76:1730-1740, 2016. © 2016 International Society for Magnetic Resonance in Medicine.
    Sprache Englisch
    Erscheinungsdatum 2016-12
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 605774-3
    ISSN 1522-2594 ; 0740-3194
    ISSN (online) 1522-2594
    ISSN 0740-3194
    DOI 10.1002/mrm.26060
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

    Kategorien

    Verfügbar in ZB MED Köln/Königswinter

    Zs.A 1959: Hefte anzeigen Standort:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  5. Artikel ; Online: HYFI: Hybrid filling of the dead-time gap for faster zero echo time imaging.

    Froidevaux, Romain / Weiger, Markus / Rösler, Manuela B / Brunner, David O / Pruessmann, Klaas P

    NMR in biomedicine

    2021  Band 34, Heft 6, Seite(n) e4493

    Abstract: The aim of this work was to improve the SNR efficiency of zero echo time (ZTE) MRI pulse sequences for faster imaging of short- ... ...

    Abstract The aim of this work was to improve the SNR efficiency of zero echo time (ZTE) MRI pulse sequences for faster imaging of short-T
    Mesh-Begriff(e) Algorithms ; Animals ; Bone and Bones/diagnostic imaging ; Cattle ; Computer Simulation ; Echo-Planar Imaging ; Humans ; Knee/diagnostic imaging ; Phantoms, Imaging ; Signal Processing, Computer-Assisted ; Time Factors
    Sprache Englisch
    Erscheinungsdatum 2021-02-23
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 1000976-0
    ISSN 1099-1492 ; 0952-3480
    ISSN (online) 1099-1492
    ISSN 0952-3480
    DOI 10.1002/nbm.4493
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

    Kategorien

    Verfügbar in ZB MED Köln/Königswinter

    Zs.A 2869: Hefte anzeigen Standort:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  6. Buch ; Online ; Dissertation / Habilitation: Skelettierung von 3d-Objekten auf kubisch-raumzentrierten Gittern und deren Anwendung in der Segmentierung, Manipulierung und Klassifizierung

    Brunner, David

    2007  

    Verfasserangabe von David Brunner
    Sprache Deutsch
    Umfang Online-Ressource
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Dissertation / Habilitation Techn. Univ., Diss--Chemnitz, 2007
    Datenquelle Ehemaliges Sondersammelgebiet Küsten- und Hochseefischerei

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  7. Artikel ; Online: When does population growth pay off? A case study of suburban land consumption to assess the Lower Austrian infrastructural cost calculator.

    Humer, Alois / Sedlitzky, Raphael / Brunner, David

    Journal of housing and the built environment : HBE

    2018  Band 34, Heft 1, Seite(n) 331–344

    Abstract: To increase the number of inhabitants' is a commonly stated top objective in municipal strategies across European countries. Not differently in Austria, local policy follows a logic of growth as financial tax and redistribution systems reward according ... ...

    Abstract 'To increase the number of inhabitants' is a commonly stated top objective in municipal strategies across European countries. Not differently in Austria, local policy follows a logic of growth as financial tax and redistribution systems reward according to population figures; but is demographic growth necessarily financially beneficial for a municipality, irrespective of the type of land use changes, and potentially urban sprawl, that it triggers? The Federal State of Lower Austria offers to its municipalities a strategic online planning tool to pre-assess eventual municipal infrastructural costs and tax revenues that would come with certain population increase. This study tests the Lower Austrian
    Sprache Englisch
    Erscheinungsdatum 2018-12-28
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 2016906-1
    ISSN 1573-7772 ; 1566-4910
    ISSN (online) 1573-7772
    ISSN 1566-4910
    DOI 10.1007/s10901-018-09639-7
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  8. Artikel: Pro-angiogenic and antibacterial copper containing nanoparticles in PLGA/amorphous calcium phosphate bone nanocomposites.

    Näf, Lukas / Miescher, Iris / Pfuderer, Lara / Schweizer, Tiziano A / Brunner, David / Dürig, Johannes / Gröninger, Olivier / Rieber, Julia / Meier-Buergisser, Gabriella / Spanaus, Katharina / Calcagni, Maurizio / Bosshard, Philipp P / Achermann, Yvonne / Stark, Wendelin J / Buschmann, Johanna

    Heliyon

    2024  Band 10, Heft 5, Seite(n) e27267

    Abstract: Large bone defects after trauma demand for adequate bone substitutes. Bone void fillers should be antibacterial and pro-angiogenic. One viable option is the use of composite materials like the combination of PLGA and amorphous calcium phosphate (aCaP). ... ...

    Abstract Large bone defects after trauma demand for adequate bone substitutes. Bone void fillers should be antibacterial and pro-angiogenic. One viable option is the use of composite materials like the combination of PLGA and amorphous calcium phosphate (aCaP). Copper stimulates angiogenesis and has antibacterial qualities. Either copper oxide (CuO) nanoparticles (NPs) were therefore added to PLGA/aCaP/CuO in different concentrations (1, 5 and 10 w/w %) or copper-doped tricalcium phosphate NPs (TCP with 2% of copper) were electrospun into PLGA/CuTCP nanocomposites. Bi-layered nanocomposites of PLGA/aCaP with different copper NPs (CuO or TCP) and a second layer of pristine PLGA were fabricated. Two clinical bacterial isolates (
    Sprache Englisch
    Erscheinungsdatum 2024-03-04
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e27267
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  9. Buch ; Online: Bistatic OFDM-based Joint Radar-Communication

    de Oliveira, Lucas Giroto / Brunner, David / Diewald, Axel / Muth, Charlotte / Schmalen, Laurent / Zwick, Thomas / Nuss, Benjamin

    Synchronization, Data Communication and Sensing

    2023  

    Abstract: This article introduces a bistatic joint radar-communication (RadCom) system based on orthogonal frequency-division multiplexing (OFDM). In this context, the adopted OFDM frame structure is described and system model encompassing time, frequency, and ... ...

    Abstract This article introduces a bistatic joint radar-communication (RadCom) system based on orthogonal frequency-division multiplexing (OFDM). In this context, the adopted OFDM frame structure is described and system model encompassing time, frequency, and sampling synchronization mismatches between the transmitter and receiver of the bistatic system is outlined. Next, the signal processing approaches for synchronization and communication are discussed, and radar sensing processing approaches using either only pilots or a reconstructed OFDM frame based on the estimated receive communication data are presented. Finally, proof-of-concept measurement results are presented to validate the investigated system and a trade-off between frame size and the performance of the aforementioned processing steps is observed.

    Comment: Accepted for presentation at the focused session "Joint Communication and Radar Sensing - a step towards 6G'' of the EuMW 2023
    Schlagwörter Electrical Engineering and Systems Science - Signal Processing
    Thema/Rubrik (Code) 600
    Erscheinungsdatum 2023-05-24
    Erscheinungsland us
    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  10. Artikel ; Online: Advances in MRI of the myelin bilayer.

    Weiger, Markus / Froidevaux, Romain / Baadsvik, Emily Louise / Brunner, David Otto / Rösler, Manuela Barbara / Pruessmann, Klaas Paul

    NeuroImage

    2020  Band 217, Seite(n) 116888

    Abstract: Myelin plays a key role in the function of the central nervous system and is involved in many neurodegenerative diseases. Hence, depiction of myelin is desired for both research and diagnosis. However, MRI of the lipid bilayer constituting the myelin ... ...

    Abstract Myelin plays a key role in the function of the central nervous system and is involved in many neurodegenerative diseases. Hence, depiction of myelin is desired for both research and diagnosis. However, MRI of the lipid bilayer constituting the myelin membrane is hampered by extremely rapid signal decay and cannot be accomplished with conventional sequences. Dedicated short-T
    Mesh-Begriff(e) Algorithms ; Animals ; Body Water ; Brain/diagnostic imaging ; Computer Simulation ; Humans ; Image Processing, Computer-Assisted ; Lipid Bilayers ; Magnetic Resonance Imaging/instrumentation ; Magnetic Resonance Imaging/methods ; Myelin Sheath ; Phantoms, Imaging ; Swine
    Chemische Substanzen Lipid Bilayers
    Sprache Englisch
    Erscheinungsdatum 2020-04-29
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 1147767-2
    ISSN 1095-9572 ; 1053-8119
    ISSN (online) 1095-9572
    ISSN 1053-8119
    DOI 10.1016/j.neuroimage.2020.116888
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

    Kategorien

    Verfügbar in ZB MED Köln/Königswinter

    Zs.A 3664: Hefte anzeigen Standort:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)
    Zs.MO 7: Hefte anzeigen

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

Zum Seitenanfang