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  1. Article ; Online: Logging the Operation and Enhancing the Reliability of Safety-Critical Embedded Systems Using Self-Test

    Zsolt Molnár

    Interdisciplinary Description of Complex Systems, Vol 17, Iss 3-A, Pp 492-

    2019  Volume 496

    Abstract: There are several solutions to increase the reliability of safety-critical embedded systems (e.g. redundant systems). Where appropriate, achieving the highest possible reliability is always an important goal. The present article also aims to describe a ... ...

    Abstract There are several solutions to increase the reliability of safety-critical embedded systems (e.g. redundant systems). Where appropriate, achieving the highest possible reliability is always an important goal. The present article also aims to describe a solution for this purpose. One of these reliability enhancement options - besides redundancy - is the development of a self-testing system that can detect any malfunctions in downtime (during inactivity) or during normal operation. If there is no error, then this self-testing system reports that the system is error-free. The self-testing and event logging system described in this article provides an additional advantage over other solutions. In addition to increased reliability, the root causes of the stored events and information can be discovered and eliminated in case of an error, even, if necessary, by hardware or software changes. The system outlined in this article - of course - requires further considerations and additions, and the details of circuit and software implementation should be elaborated, but its use in safety-critical systems is clearly beneficial.
    Keywords safety-critical embedded system ; self-test ; operation and event logging ; enhancing reliability ; smart city ; Social sciences (General) ; H1-99
    Subject code 600
    Language English
    Publishing date 2019-09-01T00:00:00Z
    Publisher Croatian Interdisciplinary Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Radiation Source Localization Using a Model-Based Approach.

    Molnár, András / Kiss, Daniel / Domozi, Zsolt

    Sensors (Basel, Switzerland)

    2023  Volume 23, Issue 13

    Abstract: The procedure is practically an optimization method, during which it is assumed that the gamma dose values detected at different points above the area come from the background radiation and from a single source found in the area. Accordingly, the ... ...

    Abstract The procedure is practically an optimization method, during which it is assumed that the gamma dose values detected at different points above the area come from the background radiation and from a single source found in the area. Accordingly, the procedure searches within the area for a geographical coordinate for which the distance law for the spatial propagation of radiation will be true. In order to validate the procedure, we performed measurements in a test area in such a way that all parameters of the source, including its location, were well defined. However, these data were not taken into account during the processing, i.e., the search procedure did not have these data. We can estimate the radiation position without a positional parameter. The exact coordinate and the intensity of the radiating sample were only used when checking the results. We have also applied the method to the raw data of our experiments carried out in the past if we used one source for them. The results confirmed our assumptions. The method is suitable for determining the starting parameters of more complex processes that can even detect multiple sources, but assuming one source, it has proven to be a reliable analytical method on its own.
    Language English
    Publishing date 2023-06-27
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s23135983
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Monitoring Treatment, Risks and Side Effects.

    Molnár, Zsolt / Szrama, Jakub / Sierakowska, Katarzyna

    Contributions to nephrology

    2023  Volume 200, Page(s) 98–106

    Abstract: Inflammation plays a key role in the pathophysiology of organ dysfunction in the critically ill patients and is triggered by an overwhelming host response resulting in the overproduction of various cytokines. Regaining immune homeostasis over the ... ...

    Abstract Inflammation plays a key role in the pathophysiology of organ dysfunction in the critically ill patients and is triggered by an overwhelming host response resulting in the overproduction of various cytokines. Regaining immune homeostasis over the dysregulated immune response through broad removal of cytokines using extracorporeal blood purification therapies has recently gained increasing attention. Nonetheless, many questions remain regarding the appropriate monitoring treatment, its potential risks, and side effects. The CytoSorb blood purification, the most extensively investigated device, has been shown to effectively remove an array of cytokines that may lead to rapid hemodynamic stabilization as indicated by reduced vasopressor need during the treatment, as well as an improvement in vital organ function. However, reported survival benefits have been fairly inconsistent. The therapy has also been confirmed as being safe and well tolerated. Despite several questions remaining such as the right timing, duration, frequency, concomitant antibiotic use, and most appropriate patient group with the highest change of benefit, the additional use as adjuvant therapy in hyperinflammatory states and/or in patients refractory to best standard care seems reasonable. Of note, there are several randomized controlled trials currently registered and ongoing that hopefully will provide answers to some of the above questions in the not-too-distant future.
    MeSH term(s) Humans ; Combined Modality Therapy ; Inflammation ; Cytokines ; Critical Illness
    Chemical Substances Cytokines
    Language English
    Publishing date 2023-06-01
    Publishing country Switzerland
    Document type Journal Article ; Review
    ISSN 1662-2782 ; 0302-5144
    ISSN (online) 1662-2782
    ISSN 0302-5144
    DOI 10.1159/000527344
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  4. Article ; Online: Impact of the epidemiological instructions due to the COVID-19 pandemic on general surgical care at the Bajcsy-Zsilinszky Hospital in Budapest

    Benedek, Zsófia / Molnár-Gallatz, Zsolt

    Orvosi hetilap

    2021  Volume 162, Issue 44, Page(s) 1761–1768

    Title translation A COVID-19-járvány miatt bevezetett járványügyi intézkedések hatása a hasi sebészeti ellátásra a Bajcsy-Zsilinszky Kórházban.
    MeSH term(s) COVID-19 ; Elective Surgical Procedures ; Hospitals ; Humans ; Hungary ; Pandemics ; SARS-CoV-2
    Language Hungarian
    Publishing date 2021-10-31
    Publishing country Hungary
    Document type Journal Article
    ZDB-ID 123879-6
    ISSN 1788-6120 ; 0030-6002
    ISSN (online) 1788-6120
    ISSN 0030-6002
    DOI 10.1556/650.2021.32308
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    In stock of ZB MED Cologne/Königswinter

    Zs.B 301: Show issues Location:
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  5. Article ; Online: Stereoselective Synthesis and Catalytical Application of Perillaldehyde-Based 3-Amino-1,2-diol Regioisomers.

    Háznagy, Márton Benedek / Csámpai, Antal / Ugrai, Imre / Molnár, Barnabás / Haukka, Matti / Szakonyi, Zsolt

    International journal of molecular sciences

    2024  Volume 25, Issue 8

    Abstract: A library of regioisomeric monoterpene-based aminodiols was synthesised and applied as chiral catalysts in the addition of diethylzinc to benzaldehyde. The synthesis of the first type of aminodiols was achieved starting from (-)-8,9-dihydroperillaldehyde ...

    Abstract A library of regioisomeric monoterpene-based aminodiols was synthesised and applied as chiral catalysts in the addition of diethylzinc to benzaldehyde. The synthesis of the first type of aminodiols was achieved starting from (-)-8,9-dihydroperillaldehyde via reductive amination, followed by Boc protection and dihydroxylation with the OsO
    MeSH term(s) Stereoisomerism ; Catalysis ; Monoterpenes/chemistry ; Benzaldehydes/chemistry ; Amino Alcohols/chemistry ; Amino Alcohols/chemical synthesis ; Molecular Structure ; Aldehydes/chemistry ; Organometallic Compounds
    Chemical Substances perillaldehyde (6EQL0XA86G) ; Monoterpenes ; diethylzinc (S0W5NQH7C6) ; Benzaldehydes ; Amino Alcohols ; Aldehydes ; benzaldehyde (TA269SD04T) ; Organometallic Compounds
    Language English
    Publishing date 2024-04-13
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms25084325
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  6. Article: Why do startups fail? A core competency deficit model.

    Szathmári, Edit / Varga, Zoltán / Molnár, Attila / Németh, Gergely / Szabó, Zsolt Péter / Kiss, Orhidea Edith

    Frontiers in psychology

    2024  Volume 15, Page(s) 1299135

    Abstract: A growing body of work aims to explore the reasons behind startup failures. However, there is a need for integrative approaches organized around conceptual frameworks to avoid fragmented and perplexing knowledge about these reasons. To our knowledge, no ... ...

    Abstract A growing body of work aims to explore the reasons behind startup failures. However, there is a need for integrative approaches organized around conceptual frameworks to avoid fragmented and perplexing knowledge about these reasons. To our knowledge, no previous research has systematically investigated the role of competency deficits in startup failures, a crucial element of these failures. In our study, we adapted Spencer's behavioral competence model specifically for startups to identify the competencies within startup teams that, according to their Chief Executive Officers, contributed to their downfall. Three coders meticulously analyzed 50 online accounts of startup failures using a modified Critical Incident Technique. This analysis revealed two prominent competency deficits as pivotal determinants of these startups' outcomes: information-seeking and customer service orientation. Additionally, deficits in technical expertise, analytical thinking, and flexibility emerged as significant factors contributing to these failures. The competency deficits identified in this study offer focal points for evaluating and enhancing startup teams, thereby helping to prevent failure.
    Language English
    Publishing date 2024-02-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2563826-9
    ISSN 1664-1078
    ISSN 1664-1078
    DOI 10.3389/fpsyg.2024.1299135
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  7. Article: Minimal invasive transnasal endoscopic removal of intracranial foreign body after airbag deployment.

    Kovacs, Nimrod / Zsolt, Vagi / Toth-Molnar, Edit / Foldi, Janos / Bella, Zsolt / Barzo, Pal

    Ideggyogyaszati szemle

    2023  Volume 76, Issue 11-12, Page(s) 427–432

    Abstract: ... Airbag induced injuries such as skull and cervical spine fractures, epidural and subdural hematomas, atlantooccipital dislocations or brainstem lacerations are already documented in published literature, however, no previous case have been published ... ...

    Title translation Kinyíló légzsák okozta intracranialisan penetráló idegentest minimálinvazív transnasalis endoszkópos eltávolítása.
    Abstract

    Airbag induced injuries such as skull and cervical spine fractures, epidural and subdural hematomas, atlantooccipital dislocations or brainstem lacerations are already documented in published literature, however, no previous case have been published about a penetrating foreign body of the skull base following airbag deployment. Removal of an intracranial foreign body is very dangerous and difficult, or even if it possible and necessary, requires open surgery in most of the cases. In this article we present the minimal invasive, transnasal removal of a coin from the intracranial, frontobasal region using high-resolution endoscopy combined with image-guided navigation.
    We report the case of a 59-year-old male who was brought to the emergency department after a car accident. He suffered a penetrating injury by a coin that was placed on the car’s airbag at the moment of the accident. Upon the airbag being deployed the foreign body entered the skin through the right lower eyelid, crossing the orbital cavity, ethmoid cells, sphenoid sinus and the anterior part of the planum sphenoidale at an equal distance of 2mm from the two internal carotid arteries, extending into the intracranial space, without injuring the pituitary stalk and the chiasm. We proceeded to remove the coin endoscopically using a transnasal transseptal transsphenoidal approach under general anesthesia. The dura was closed with a multilayer skull base reconstruction technique using two layers of abdominal free fat and nasal septal mucoperiosteal flap. There were no postoperative complications, nor CSF rhinorrhea. The patient was discharged 10 days after the operation.
    To our knowledge, this is the first publi­shed case of a penetrating foreign body of the skull base, extending into the intracranial cavity following airbag deployment. In some dedicated cases, a minimal invasive endoscopic approach should be considered as an alternative to anterior craniotomy if access is possible when foreign bodies from the skull base area need to be removed. This procedure is efficient, safe and minimally invasive. 

    .
    MeSH term(s) Male ; Humans ; Middle Aged ; Air Bags ; Endoscopy/methods ; Skull Base/surgery ; Foreign Bodies/diagnostic imaging ; Foreign Bodies/surgery ; Craniotomy
    Language English
    Publishing date 2023-12-05
    Publishing country Hungary
    Document type Case Reports
    ZDB-ID 2240317-6
    ISSN 0019-1442
    ISSN 0019-1442
    DOI 10.18071/isz.76.0427
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 6335: Show issues Location:
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  8. Article: Disentangling the effects of

    Leal, Carla Mota / Geiger, Adrienn / Molnár, Anna / Váczy, Kálmán Z / Kgobe, Glodia / Zsófi, Zsolt / Geml, József

    Frontiers in microbiology

    2024  Volume 14, Page(s) 1322559

    Abstract: The composition, diversity and dynamics of microbial communities associated with grapevines may be influenced by various environmental factors, ... ...

    Abstract The composition, diversity and dynamics of microbial communities associated with grapevines may be influenced by various environmental factors, including
    Language English
    Publishing date 2024-01-17
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2023.1322559
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  9. Article: Antennal responses of black plum sawfly (Hoplocampa minuta) to European plum (Prunus domestica) flower volatiles

    Kàrpáti, Zsolt / Molnár, Béla Péter

    Acta phytopathologica et entomologica Hungarica

    2022  Volume 57, Issue 1, Page(s) 17

    Document type Article
    ZDB-ID 233669-8
    ISSN 0001-6780 ; 0238-1249
    Database Current Contents Nutrition, Environment, Agriculture

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    In stock of ZB MED Bonn / Germany

    Z 2173: Show issues

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  10. Article: Individualized goal directed perioperative care - the way to go!

    Molnár, Zsolt

    Frontiers in medicine

    2015  Volume 2, Page(s) 22

    Language English
    Publishing date 2015-04-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2775999-4
    ISSN 2296-858X
    ISSN 2296-858X
    DOI 10.3389/fmed.2015.00022
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