LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Erweiterte Suche

Suchergebnis

Treffer 1 - 10 von insgesamt 797

Suchoptionen

  1. Buch ; Online ; E-Book: Emerging trends in environmental biotechnology

    Mondal, Sukanta / Pratap Singh, Shivesh / Kumar Lahir, Yogendra

    2023  

    Verfasserangabe edited by Sukanta Mondal, Shivesh Pratap Singh and Yogendra Kumar Lahir
    Schlagwörter Electronic books
    Sprache Englisch
    Umfang 1 Online-Ressource (xvi, 298 Seiten), Illustrationen
    Verlag CRC Press
    Erscheinungsort Boca Raton, Fla
    Erscheinungsland Vereinigtes Königreich
    Dokumenttyp Buch ; Online ; E-Book
    Anmerkung Description based on publisher supplied metadata and other sources
    Bemerkung Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    HBZ-ID HT021431922
    ISBN 978-1-00-055730-5 ; 9781032030258 ; 1-00-055730-8 ; 1032030259
    Datenquelle ZB MED Katalog Medizin, Gesundheit, Ernährung, Umwelt, Agrar

    Kategorien

  2. Artikel ; Online: Multitasking functions of bacterial extracellular DNA in biofilms.

    Sharma, Dhirendra Kumar / Rajpurohit, Yogendra Singh

    Journal of bacteriology

    2024  Band 206, Heft 4, Seite(n) e0000624

    Abstract: Bacterial biofilms are intricate ecosystems of microbial communities that adhere to various surfaces and are enveloped by an extracellular matrix composed of polymeric substances. Within the context of bacterial biofilms, extracellular DNA (eDNA) ... ...

    Abstract Bacterial biofilms are intricate ecosystems of microbial communities that adhere to various surfaces and are enveloped by an extracellular matrix composed of polymeric substances. Within the context of bacterial biofilms, extracellular DNA (eDNA) originates from cell lysis or is actively secreted, where it exerts a significant influence on the formation, stability, and resistance of biofilms to environmental stressors. The exploration of eDNA within bacterial biofilms holds paramount importance in research, with far-reaching implications for both human health and the environment. An enhanced understanding of the functions of eDNA in biofilm formation and antibiotic resistance could inspire the development of strategies to combat biofilm-related infections and improve the management of antibiotic resistance. This comprehensive review encapsulates the latest discoveries concerning eDNA, encompassing its origins, functions within bacterial biofilms, and significance in bacterial pathogenesis.
    Mesh-Begriff(e) Humans ; DNA, Bacterial/genetics ; Ecosystem ; Biofilms ; Bacteria/genetics ; Extracellular Matrix
    Chemische Substanzen DNA, Bacterial
    Sprache Englisch
    Erscheinungsdatum 2024-03-06
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Review
    ZDB-ID 2968-3
    ISSN 1098-5530 ; 0021-9193
    ISSN (online) 1098-5530
    ISSN 0021-9193
    DOI 10.1128/jb.00006-24
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  3. Artikel: DNA damage response and cell cycle regulation in bacteria: a twist around the paradigm.

    Misra, Hari Sharan / Rajpurohit, Yogendra Singh

    Frontiers in microbiology

    2024  Band 15, Seite(n) 1389074

    Abstract: The co-protease activity in the RecA-ssDNA complex cleaves the autorepressor LexA, resulting in the derepression of a large number of genes under LexA control. This process is called the SOS response, and genes that are expressed in response to DNA ... ...

    Abstract The co-protease activity in the RecA-ssDNA complex cleaves the autorepressor LexA, resulting in the derepression of a large number of genes under LexA control. This process is called the SOS response, and genes that are expressed in response to DNA damage are called SOS genes. The proteins encoded by the SOS genes are involved in both DNA repair and maintaining the functions of crucial cell division proteins (e.g., FtsZ) under check until the damaged DNA is presumably repaired. This mechanism of SOS response is the only known mechanism of DNA damage response and cell cycle regulation in bacteria. However, there are bacteria that do not obey this rule of DNA damage response and cell cycle regulation, yet they respond to DNA damage, repair it, and survive. That means such bacteria would have some alternate mechanism(s) of DNA damage response and cell cycle regulation beyond the canonical pathway of the SOS response. In this study, we present the perspectives that bacteria may have other mechanisms of DNA damage response and cell cycle regulation mediated by bacterial eukaryotic type Ser/Thr protein kinases as an alternate to the canonical SOS response and herewith elaborate on them with a well-studied example in the radioresistant bacterium
    Sprache Englisch
    Erscheinungsdatum 2024-03-28
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2024.1389074
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  4. Artikel ; Online: Novel Bottom-Side Polished PCF-Based Plasmonic Biosensor for Early Detection of Hazardous Cancerous Cells.

    Singh, Shivam / Prajapati, Yogendra Kumar

    IEEE transactions on nanobioscience

    2023  Band 22, Heft 3, Seite(n) 647–654

    Abstract: This work presents a single-core bowl-shaped bottom-side polished (BSP) photonic crystal fiber (PCF) sensor based on surface plasmon resonance (SPR) concept for the early detection of hazardous cancer cells in human blood, skin, cervical, breast, and ... ...

    Abstract This work presents a single-core bowl-shaped bottom-side polished (BSP) photonic crystal fiber (PCF) sensor based on surface plasmon resonance (SPR) concept for the early detection of hazardous cancer cells in human blood, skin, cervical, breast, and adrenal glands. We have studied liquid samples of cancer-affected and healthy samples with their concentrations/refractive indices in the sensing medium. To induce a plasmonic effect in the PCF sensor, the bottom flat section of a silica PCF fiber is coated with a 40nm plasmonic material, such as gold. To strengthen this effect, a thin TiO
    Mesh-Begriff(e) Humans ; Female ; Gold ; Metal Nanoparticles ; Early Detection of Cancer ; Uterine Cervical Neoplasms/diagnosis ; Surface Plasmon Resonance
    Chemische Substanzen Gold (7440-57-5)
    Sprache Englisch
    Erscheinungsdatum 2023-06-29
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 1558-2639
    ISSN (online) 1558-2639
    DOI 10.1109/TNB.2023.3233990
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  5. Artikel ; Online: Natural transformation-specific DprA coordinate DNA double-strand break repair pathways in heavily irradiated

    Sharma, Dhirendra Kumar / Soni, Ishu / Misra, Hari S / Rajpurohit, Yogendra Singh

    Applied and environmental microbiology

    2024  Band 90, Heft 2, Seite(n) e0194823

    Abstract: Deinococcus ... ...

    Abstract Deinococcus radiodurans
    Mesh-Begriff(e) Bacterial Proteins/genetics ; Bacterial Proteins/metabolism ; DNA Repair ; DNA Breaks, Double-Stranded ; DNA/metabolism ; DNA Damage ; Deinococcus/genetics ; Deinococcus/metabolism ; DNA, Bacterial/genetics ; DNA, Bacterial/metabolism
    Chemische Substanzen Bacterial Proteins ; DNA (9007-49-2) ; DNA, Bacterial
    Sprache Englisch
    Erscheinungsdatum 2024-01-09
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 223011-2
    ISSN 1098-5336 ; 0099-2240
    ISSN (online) 1098-5336
    ISSN 0099-2240
    DOI 10.1128/aem.01948-23
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  6. Artikel: A Giant Scrotal Neurofibroma in a Child Masquerading as Filariasis: Uncommon Presentation of a Common Disease.

    Singh, Anurag / Singh, Gyanendra / Verma, Anuragani / Verma, Yogendra Narayan

    Prague medical report

    2024  Band 125, Heft 1, Seite(n) 56–61

    Abstract: Neurofibroma of the scrotum is a very uncommon benign neoplasm, specifically when it affects teenagers and is not associated with neurofibromatosis type I. To the best of our knowledge, only a couple of cases of neurofibroma in children have been ... ...

    Abstract Neurofibroma of the scrotum is a very uncommon benign neoplasm, specifically when it affects teenagers and is not associated with neurofibromatosis type I. To the best of our knowledge, only a couple of cases of neurofibroma in children have been documented. Here, we report a case study of a 17-year-old boy who had a giant scrotal lump for ten years masquerading clinically as filariasis. A provisional diagnosis of benign nerve sheath neoplasm was made based on cytology findings. The lump was surgically removed from the patient, and a histopathological and immunohistochemistry examination established the diagnosis of neurofibroma. The combined clinical, preoperative cytological, histological, and immunohistochemistry findings were not presented in the literature in any of the formerly documented cases of scrotal neurofibroma. The current case expands the spectrum of differential diagnoses for scrotal tumours that clinicians have previously observed.
    Mesh-Begriff(e) Male ; Adolescent ; Child ; Humans ; Scrotum/pathology ; Neurofibroma/diagnosis ; Neurofibroma/pathology ; Neurofibroma/surgery ; Neurofibromatosis 1/complications ; Neurofibromatosis 1/pathology ; Genital Neoplasms, Male/diagnosis ; Genital Neoplasms, Male/surgery ; Genital Neoplasms, Male/complications ; Filariasis/diagnosis ; Filariasis/complications ; Filariasis/pathology ; Nematode Infections/complications ; Nematode Infections/pathology
    Sprache Englisch
    Erscheinungsdatum 2024-02-21
    Erscheinungsland Czech Republic
    Dokumenttyp Case Reports ; Journal Article
    ZDB-ID 2148569-0
    ISSN 1214-6994
    ISSN 1214-6994
    DOI 10.14712/23362936.2024.5
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  7. Artikel: Low abundance of healthy bacteria in the gastric microbiota can be a potential biomarker for gastrointestinal diseases: A pilot study.

    Arfi, Safiya / Sharma, Prateek / Das, Kunal / Bhaskar, Yogendra / Goel, Isha / Singh, Harpreet / Das, Rajashree

    The Indian journal of medical research

    2024  Band 159, Heft 2, Seite(n) 254–258

    Mesh-Begriff(e) Humans ; Pilot Projects ; Microbiota ; Bacteria/genetics ; Gastrointestinal Diseases/diagnosis ; Biomarkers ; RNA, Ribosomal, 16S
    Chemische Substanzen Biomarkers ; RNA, Ribosomal, 16S
    Sprache Englisch
    Erscheinungsdatum 2024-04-04
    Erscheinungsland India
    Dokumenttyp Journal Article
    ZDB-ID 390883-5
    ISSN 0971-5916 ; 0019-5340
    ISSN 0971-5916 ; 0019-5340
    DOI 10.4103/ijmr.ijmr_864_23
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  8. Artikel ; Online: Neuroleptic Malignant Syndrome in a 15-Month-Old Child: A Case Report.

    Penugonda, Asha Jyothi / Singh, Yogendra / Kattula, Dheeraj / Bhaskar, Mona

    Journal of clinical psychopharmacology

    2023  Band 43, Heft 5, Seite(n) 455–456

    Mesh-Begriff(e) Humans ; Infant ; Neuroleptic Malignant Syndrome/diagnosis
    Sprache Englisch
    Erscheinungsdatum 2023-08-07
    Erscheinungsland United States
    Dokumenttyp Case Reports ; Letter
    ZDB-ID 604631-9
    ISSN 1533-712X ; 0271-0749
    ISSN (online) 1533-712X
    ISSN 0271-0749
    DOI 10.1097/JCP.0000000000001749
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  9. Artikel ; Online: Gelatin-based electrospun and lyophilized scaffolds with nano scale feature for bone tissue engineering application: review.

    Singh, Yogendra Pratap / Dasgupta, Sudip

    Journal of biomaterials science. Polymer edition

    2022  Band 33, Heft 13, Seite(n) 1704–1758

    Abstract: The rebuilding of the normal functioning of the damaged human body bone tissue is one of the main objectives of bone tissue engineering (BTE). Fabricated scaffolds are mostly treated as artificial supports and as materials for regeneration of neo bone ... ...

    Abstract The rebuilding of the normal functioning of the damaged human body bone tissue is one of the main objectives of bone tissue engineering (BTE). Fabricated scaffolds are mostly treated as artificial supports and as materials for regeneration of neo bone tissues and must closely biomimetic the native extracellular matrix of bone. The materials used for developing scaffolds should be biodegradable, nontoxic, and biocompatible. For the resurrection of bone disorder, specifically natural and synthetic polymers such as chitosan, PCL, gelatin, PGA, PLA, PLGA, etc. meet the requirements for serving their functions as artificial bone substitute materials. Gelatin is one of the potential candidates which could be blended with other polymers or composites to improve its physicochemical, mechanical, and biological performances as a bone graft. Scaffolds are produced by several methods including electrospinning, self-assembly, freeze-drying, phase separation, fiber drawing, template synthesis, etc. Among them, freeze-drying and electrospinning are among the popular, simplest, versatile, and cost-effective techniques. The design and preparation of freeze-dried and electrospun scaffolds are of intense research over the last two decades. Freeze-dried and electrospun scaffolds offer a distinctive architecture at the micro to nano range with desired porosity and pore interconnectivity for selective movement of small biomolecules and play its role as an appropriate matrix very similar to the natural bone extracellular matrix. This review focuses on the properties and functionalization of gelatin-based polymer and its composite in the form of bone scaffolds fabricated primarily using lyophilization and electrospinning technique and their applications in BTE.
    Mesh-Begriff(e) Biocompatible Materials ; Bone and Bones ; Gelatin/chemistry ; Humans ; Polyesters/chemistry ; Polymers ; Porosity ; Tissue Engineering/methods ; Tissue Scaffolds/chemistry
    Chemische Substanzen Biocompatible Materials ; Polyesters ; Polymers ; Gelatin (9000-70-8)
    Sprache Englisch
    Erscheinungsdatum 2022-05-28
    Erscheinungsland England
    Dokumenttyp Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 1014190-x
    ISSN 1568-5624 ; 1568-5616 ; 0920-5063
    ISSN (online) 1568-5624 ; 1568-5616
    ISSN 0920-5063
    DOI 10.1080/09205063.2022.2068943
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  10. Artikel ; Online: Tidal turbine support in microgrid frequency regulation through novel cascade Fuzzy-FOPID droop in de-loaded region.

    Singh, Kavita / Arya, Yogendra

    ISA transactions

    2022  Band 133, Seite(n) 218–232

    Abstract: The goal of this study is to introduce an effective load frequency control scheme with the integration of tidal turbines in a standalone microgrid (μG) system. As standalone μG experiences lower inertia and lacks primary frequency control, the use of ... ...

    Abstract The goal of this study is to introduce an effective load frequency control scheme with the integration of tidal turbines in a standalone microgrid (μG) system. As standalone μG experiences lower inertia and lacks primary frequency control, the use of variable tidal turbines in the de-loaded region may be accepted as one of the feasible solutions for managing frequency regulation issues. In this condition, the de-load region alludes to an area where tidal turbines liberate their accumulated kinetic energy in rotational parts pursuing frequency fluctuations. An effectual cascade fractional order fuzzy PID-integral double derivative (CFOFPID-IDD) controller suggested for efficient utilization of tidal turbines, whose design variables are tuned through a recently appeared Jaya algorithm. An investigation is made between the acquired outcomes of the studied CFOFPID-IDD droop controller with fractional order fuzzy PID droop control to analyze the proposed strategy performance in various load conditions, with different physical constraints like time delay, dead zone, and generation rate constraints. Moreover, the sensitivity test reveals that the Jaya-optimized CFOFPID-IDD controller can undergo ± (10-25) % variation in various coefficients without retuning the design variable values. The simulation outcomes validate the effectiveness and adequacy of the proposed regulator.
    Mesh-Begriff(e) Fuzzy Logic ; Computer Simulation ; Algorithms
    Sprache Englisch
    Erscheinungsdatum 2022-07-15
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2012746-7
    ISSN 1879-2022 ; 0019-0578
    ISSN (online) 1879-2022
    ISSN 0019-0578
    DOI 10.1016/j.isatra.2022.07.010
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

Zum Seitenanfang