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  1. Article: Prof. Pavel Jefimovic Zabludovskij-80 let

    Matousek, M

    Casopis lekaru ceskych

    1974  Volume 113, Issue 18, Page(s) 576

    Title translation The 80th birthday of Prof. Jefimovic Zabludovskij.
    MeSH term(s) History of Medicine ; History, 20th Century ; Military Medicine/history ; Moscow ; Ukraine
    Language Czech
    Publishing date 1974-05-03
    Publishing country Czech Republic
    Document type Biography ; Historical Article ; Journal Article
    ZDB-ID 413441-2
    ISSN 1805-4420 ; 0008-7335
    ISSN (online) 1805-4420
    ISSN 0008-7335
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    In stock of ZB MED Cologne/Königswinter

    Zs.B 278: Show issues Location:
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    ab Jg. 2022: Lesesaal (EG)

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  2. Article ; Online: Multiple wavelength digital holography for freeform shape measurement and lens alignment.

    Kaván, František / Psota, Pavel / Lédl, Vít / Matoušek, Ondřej

    Applied optics

    2023  Volume 62, Issue 10, Page(s) D138–D145

    Abstract: This paper introduces a technique for freeform optical surface measurements using digital holography with multiple discrete wavelengths or wavelength scans. This experimental arrangement, i.e., a Mach-Zehnder holographic profiler, is optimized to achieve ...

    Abstract This paper introduces a technique for freeform optical surface measurements using digital holography with multiple discrete wavelengths or wavelength scans. This experimental arrangement, i.e., a Mach-Zehnder holographic profiler, is optimized to achieve maximal theoretical precision and is capable of measuring freeform diffuse surfaces. Moreover, the approach can also be used for diagnostics of precise placement of elements within optical systems.
    Language English
    Publishing date 2023-05-01
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.476435
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  3. Article ; Online: Guided principal component analysis (GPCA): a simple method for improving detection of a known analyte.

    Gardner, Benjamin / Haskell, Jennifer / Matousek, Pavel / Stone, Nicholas

    The Analyst

    2023  Volume 149, Issue 1, Page(s) 205–211

    Abstract: There is increasing interest in the application of Raman spectroscopy in a medical setting, ranging from supporting real-time clinical ... ...

    Abstract There is increasing interest in the application of Raman spectroscopy in a medical setting, ranging from supporting real-time clinical decisions
    MeSH term(s) Artificial Intelligence ; Principal Component Analysis ; Neural Networks, Computer ; Spectrum Analysis, Raman/methods
    Language English
    Publishing date 2023-12-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 210747-8
    ISSN 1364-5528 ; 0003-2654
    ISSN (online) 1364-5528
    ISSN 0003-2654
    DOI 10.1039/d3an00820g
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2423: Show issues Location:
    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)

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  4. Article ; Online: Shifted Excitation Raman Difference Spectroscopy Combined with Wide Area Illumination and Sample Rotation for Wood Species Classification.

    Sowoidnich, Kay / Towrie, Michael / Matousek, Pavel

    Applied spectroscopy

    2023  Volume 77, Issue 6, Page(s) 666–681

    Abstract: Raman spectroscopy has found its way into a wide range of applications and is successfully applied for qualitative and quantitative studies. Despite significant technical progress over the last few decades, there are still some challenges that limit its ... ...

    Abstract Raman spectroscopy has found its way into a wide range of applications and is successfully applied for qualitative and quantitative studies. Despite significant technical progress over the last few decades, there are still some challenges that limit its more widespread usage. This paper presents a holistic approach to addressing simultaneously the problems of fluorescence interference, sample heterogeneity, and laser-induced sample heating. Long wavelength shifted excitation Raman difference spectroscopy (SERDS) at 830 nm excitation combined with wide-area illumination and sample rotation is presented as a suitable approach for the investigation of selected wood species. Wood as a natural specimen represents a well-suited model system for our study as it is fluorescent, heterogeneous, and susceptible to laser-induced modifications. Two different subacquisition times (50 and 100 ms) and two sample rotation speeds (12 and 60 r/min) were exemplarily assessed. Results demonstrate that SERDS can effectively separate the Raman spectroscopic fingerprints of the wood species balsa, beech, birch, hickory, and pine from intense fluorescence interference. Sample rotation in conjunction with 1 mm-diameter wide-area illumination was suitable to obtain representative SERDS spectra of the wood species within 4.6 s. Using partial least squares discriminant analysis, a classification accuracy of 99.4% for the five investigated wood species was realized. This study highlights the large potential of SERDS combined with wide-area illumination and sample rotation for the effective analysis of fluorescent, heterogeneous, and thermally sensitive specimens in a wide range of application areas.
    MeSH term(s) Spectrum Analysis, Raman/methods ; Wood ; Lighting ; Rotation ; Discriminant Analysis
    Language English
    Publishing date 2023-05-16
    Publishing country United States
    Document type Journal Article
    ISSN 1943-3530
    ISSN (online) 1943-3530
    DOI 10.1177/00037028231168405
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  5. Article: High PD-L1 expression on immune cells along with increased density of tumor-infiltrating lymphocytes predicts a favorable survival outcome for patients with loco-regionally advanced head and neck cancer: early results from a prospective study.

    Blažek, Tomáš / Petráš, Marek / Hurník, Pavel / Matoušek, Petr / Knybel, Lukáš / Čermáková, Zuzana Zděblová / Štembírek, Jan / Cvek, Jakub / Soumarová, Renata

    Frontiers in oncology

    2024  Volume 14, Page(s) 1346793

    Abstract: Introduction: In the era of personalized medicine and treatment optimization, use of immune biomarkers holds promise for estimating the prognosis of patients with head and neck squamous cell carcinoma (HNSCC) undergoing definitive treatment.: Methods!# ...

    Abstract Introduction: In the era of personalized medicine and treatment optimization, use of immune biomarkers holds promise for estimating the prognosis of patients with head and neck squamous cell carcinoma (HNSCC) undergoing definitive treatment.
    Methods: To evaluate the prognostic potential of immune biomarkers, we conducted a prospective monocentric cohort study with loco-regionally advanced HNSCC patients indicated for definitive radiotherapy/radiochemotherapy at the Department of Oncology, Ostrava University Hospital, Czech Republic, between June 2020 and August 2023. We focused on the expression of programmed death ligand 1 (PD-L1) and tumor-infiltrating lymphocytes (TILs) relative to overall survival (OS) and specific survival rates. Associations between biomarkers and survival rates were assessed by crude and adjusted hazard ratios (cHR, aHR, respectively) obtained from Cox proportional hazards regression.
    Results: Among a total of 55 patients within a median follow-up of 19.7 months, there were 21 (38.2%) all-cause deaths and 15 (27.3%) cancer-related deaths. An overall survival (OS) rate of 61.8% and a disease-specific survival (DSS) rate of 72.7% were recorded. A significant association between survival rates and a ≥10% difference in PD-L1 expression on immune versus tumor cells (high PD-L1
    Discussion: The early outcomes of the present study suggest the utility of a strong prognostic factor involving a composite biomarker high PD-L1
    Trial registration: The study is registered with Clinicaltrials.gov. - NCT05941676.
    Language English
    Publishing date 2024-04-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2024.1346793
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  6. Article ; Online: Absolute wavelength scanning interferometry for measuring the thickness of optical elements.

    Psota, Pavel / Kredba, Jan / Stašík, Marek / Nečásek, Jakub / Matoušek, Ondřej / Lédl, Vít

    Optics express

    2023  Volume 31, Issue 3, Page(s) 3565–3578

    Abstract: A technique for measurement of the thickness of optical elements using absolute wavelength scanning interferometry is presented in this paper. To achieve high-grade optical components and systems, the thickness of both planar and non-planar optical ... ...

    Abstract A technique for measurement of the thickness of optical elements using absolute wavelength scanning interferometry is presented in this paper. To achieve high-grade optical components and systems, the thickness of both planar and non-planar optical components must be measured with an accuracy of a few micrometers. The proposed technique is based on the Fizeau interferometer and interconnects data from three different tunable laser diodes yielding a long effective wavelength range and thus low measurement uncertainty. The uncertainty of the central thickness measurement ranges from hundreds of nanometers to a few microns. The method allows to measure the thickness of both flat optical elements as well as lenses with curved surfaces. Moreover, the areal information provided by the interferometry and its high angle sensitivity help to quickly and precisely align the measured component and reduce misalignment errors. The results of thickness measurements have been validated and cross-tested with other techniques. In addition to the thickness, the technique provides some additional information (wedge, surface form error) in the case of flat samples and can be easily and quickly modified (mounting of a Fizeau transmission sphere) to measure other essential parameters of optical elements. Thus, this one approach can replace many single-purpose measuring devices while maintaining high accuracy.
    Language English
    Publishing date 2023-01-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.479211
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  7. Article ; Online: Effect of Surface Treatment of Nanocrystalline CeO

    Ederer, Jakub / Janoš, Pavel / Vrtoch, Luboš / Št'astný, Martin / Henych, Jiří / Matoušek, Jindřich / Kormunda, Martin / Ryšánek, Petr

    Langmuir : the ACS journal of surfaces and colloids

    2023  Volume 40, Issue 1, Page(s) 302–316

    Abstract: The surface of nanocrystalline cerium oxide ( ... ...

    Abstract The surface of nanocrystalline cerium oxide (CeO
    Language English
    Publishing date 2023-12-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.3c02576
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  8. Article: Spatially offset Raman spectroscopy for non-invasive analysis of turbid samples

    Matousek, Pavel

    Trends in analytical chemistry. 2018 June, v. 103

    2018  

    Abstract: Spatially Offset Raman Spectroscopy (SORS) and related methods for deep non-invasive Raman analysis of diffusely scattering samples have recently undergone major advances leading to the opening of a number of new applications across several fields. Here ... ...

    Abstract Spatially Offset Raman Spectroscopy (SORS) and related methods for deep non-invasive Raman analysis of diffusely scattering samples have recently undergone major advances leading to the opening of a number of new applications across several fields. Here we review the latest instrumental concepts and outline related emerging applications. These include security screening, quality control of pharmaceutical and food products, characterisation of objects of art and diagnosis of bone disease and breast cancer.
    Keywords Raman spectroscopy ; bone diseases ; breast neoplasms ; foods ; quality control ; screening
    Language English
    Dates of publication 2018-06
    Size p. 209-214.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 2014041-1
    ISSN 0165-9936
    ISSN 0165-9936
    DOI 10.1016/j.trac.2018.04.002
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Density Matrix Renormalization Group with Dynamical Correlation via Adiabatic Connection.

    Beran, Pavel / Matoušek, Mikuláš / Hapka, Michał / Pernal, Katarzyna / Veis, Libor

    Journal of chemical theory and computation

    2021  Volume 17, Issue 12, Page(s) 7575–7585

    Abstract: The quantum chemical version of the density matrix renormalization group (DMRG) method has established itself as one of the methods of choice for calculations of strongly correlated molecular systems. Despite its great ability to capture strong ... ...

    Abstract The quantum chemical version of the density matrix renormalization group (DMRG) method has established itself as one of the methods of choice for calculations of strongly correlated molecular systems. Despite its great ability to capture strong electronic correlation in large active spaces, it is not suitable for computations of dynamical electron correlation. In this work, we present a new approach to the electronic structure problem of strongly correlated molecules, in which DMRG is responsible for a proper description of the strong correlation, whereas dynamical correlation is computed via the recently developed adiabatic connection (AC) technique which requires only up to two-body active space reduced density matrices. We report the encouraging results of this approach on typical candidates for DMRG computations, namely,
    Language English
    Publishing date 2021-11-11
    Publishing country United States
    Document type Journal Article
    ISSN 1549-9626
    ISSN (online) 1549-9626
    DOI 10.1021/acs.jctc.1c00896
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  10. Article: Does Bicanalicular Intubation Improve the Outcome of Endoscopic Dacryocystorhinostomy?

    Matoušek, Petr / Lubojacký, Jakub / Masárová, Michaela / Čábalová, Lenka / Červenka, Stanislav / Komínek, Pavel

    Journal of clinical medicine

    2022  Volume 11, Issue 18

    Abstract: The aim of this study was to compare the success of endoscopic dacryocystorinostomy with and without bicanalicular intubation in the treatment of distal nasolacrimal duct obstruction.: Methods: In a prospective, randomized, comparative study, ... ...

    Abstract The aim of this study was to compare the success of endoscopic dacryocystorinostomy with and without bicanalicular intubation in the treatment of distal nasolacrimal duct obstruction.
    Methods: In a prospective, randomized, comparative study, endoscopic dacryocystorinostomy without bicanalicular silicone intubation (Group I) and endoscopic dacryocystorinostomy with intubation (Group II) were performed in patients with distal nasolacrimal duct obstructions. The tubes were removed 3 months after surgery in Group II, and the patients were followed up for 6 months after surgery. Therapeutic success was defined as the fluorescein dye disappearance test grade 0-1 corresponding with a complete resolution of symptoms.
    Results: Thirty patients, aged 23-86 years, were included in the study. The success rate was 13/15 (86.67%) in Group I and in 14/15 (93.33%) in Group II. The difference between the two groups was not statistically significant (
    Conclusions: Bicanalicular intubation does not significantly increase the success rate of EDCR in distal nasolacrimal obstruction in adults.
    Language English
    Publishing date 2022-09-14
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662592-1
    ISSN 2077-0383
    ISSN 2077-0383
    DOI 10.3390/jcm11185387
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