LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Back to previous search Search history
Advanced search

Your last searches

  1. AU="Ali, N A"
  2. AU="Bouaoud, J"

Search results

Result 1 - 10 of total 88

Search options

  1. Article ; Online: Topological Insights into Nanostar Dendrimers by Computing the Augmented Zagreb Index.

    Ghazwani, Haleemah / Koam, Ali N A / Nadeem, Muhammad Faisal / Ahmad, Ali

    Combinatorial chemistry & high throughput screening

    2024  

    Abstract: Background: The field of nanobiotechnology uses precise nanofabrication techniques to advance our understanding and control of biological systems. Due to their remarkable properties, dendrimers, which are hyperbranched macromolecular structures with ... ...

    Abstract Background: The field of nanobiotechnology uses precise nanofabrication techniques to advance our understanding and control of biological systems. Due to their remarkable properties, dendrimers, which are hyperbranched macromolecular structures with distinct and well-defined architectures, have emerged as pivotal entities within this field. They are gaining increasing attention for their potential to catalyze a paradigm shift in medical therapeutics, biotechnological applications, and advanced material sciences.
    Objective: This paper focuses on a novel analytical expression and determines the precise value of the augmented Zagreb index, a topological descriptor, for eight classes of nanostar dendrimers.
    Methods: The Zagreb index is a topological invariant to predict molecular behaviour and reactivity. In this paper, we have explored its application in characterizing the branching of nanostar dendrimers through computational modelling and mathematical rigor.
    Results: Our research has measured the augmented Zagreb index for nanostar dendrimers, which fall into eight distinct classes. The results better explain the relationship between the dendrimers' topology and chemical properties. This correlation has implications for their structural stability and reactivity, potentially leading to new applications.
    Conclusion: Developing the augmented Zagreb index for nanostar dendrimers is a significant breakthrough in nanobiotechnology. Based on the correlation between the calculated topological index and the corresponding molecular attributes, our analytical approach has opened up new possibilities for designing and synthesizing dendrimers tailored to specific functions in medical and material science applications. This precise topological quantification could significantly enhance the utility and functionalization of dendrimers in cutting-edge nanotechnological applications.
    Language English
    Publishing date 2024-04-18
    Publishing country United Arab Emirates
    Document type Journal Article
    ZDB-ID 2064785-2
    ISSN 1875-5402 ; 1386-2073
    ISSN (online) 1875-5402
    ISSN 1386-2073
    DOI 10.2174/0113862073291384240408074601
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 5577: 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)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  2. Article: Double edge resolving set and exchange property for nanosheet structure.

    Koam, Ali N A / Ahmad, Ali / Ali, Sikander / Jamil, Muhammad Kamran / Azeem, Muhammad

    Heliyon

    2024  Volume 10, Issue 5, Page(s) e26992

    Abstract: The exploration of edge metric dimension and its applications has been an ongoing discussion, particularly in the context of nanosheet graphs formed from the octagonal grid. Edge metric dimension is a concept that involves uniquely identifying the entire ...

    Abstract The exploration of edge metric dimension and its applications has been an ongoing discussion, particularly in the context of nanosheet graphs formed from the octagonal grid. Edge metric dimension is a concept that involves uniquely identifying the entire edge set of a structure with a selected subset from the vertex set, known as the edge resolving set. Let's consider two distinct edge resolving sets, denoted as
    Language English
    Publishing date 2024-02-28
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e26992
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  3. Article ; Online: Edge based metric dimension of various coffee compounds.

    Ahmad, Ali / Koam, Ali N A / Azeem, Muhammad / Masmali, Ibtisam / Alharbi, Rehab

    PloS one

    2024  Volume 19, Issue 4, Page(s) e0294932

    Abstract: An important dietary source of physiologically active compounds, coffee also contains phenolic acids, diterpenes, and caffeine. According to a certain study, some coffee secondary metabolites may advantageously modify a number of anti-cancer defense ... ...

    Abstract An important dietary source of physiologically active compounds, coffee also contains phenolic acids, diterpenes, and caffeine. According to a certain study, some coffee secondary metabolites may advantageously modify a number of anti-cancer defense systems. This research looked at a few coffee chemical structures in terms of edge locating numbers or edge metric size to better understand the mechanics of coffee molecules. Additionally, this research includes graph theoretical properties of coffee chemical structures. The chemicals found in coffee, such as caffeine, diterpene or cafestol, kahweol, chlorogenic, caffeic, gallotannins, and ellagitannins, are especially examined in these publications.
    MeSH term(s) Humans ; Coffee/chemistry ; Caffeine ; Neoplasms ; Diet ; Diterpenes
    Chemical Substances Coffee ; Caffeine (3G6A5W338E) ; Diterpenes
    Language English
    Publishing date 2024-04-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0294932
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  4. Article ; Online: Fundamental aspects of the molecular topology of fuchsine acid dye with connection numbers.

    Koam, Ali N A / Ahmad, Ali / Zaman, Shahid / Masmali, Ibtisam / Ghazwani, Haleemah

    The European physical journal. E, Soft matter

    2024  Volume 47, Issue 4, Page(s) 24

    Abstract: Fuchsine acid serves as a supramolecular dye in Masson's trichrome stain, finding extensive applications in histology. It is also utilized with picric acid in Van Gieson's method to reveal red collagen fibers and in Masson's trichrome to highlight smooth ...

    Abstract Fuchsine acid serves as a supramolecular dye in Masson's trichrome stain, finding extensive applications in histology. It is also utilized with picric acid in Van Gieson's method to reveal red collagen fibers and in Masson's trichrome to highlight smooth muscle in contrast to collagen. Beyond these applications, it plays a crucial role in electronic fields and photonic devices as an organic semiconductor. Therefore, investigating and predicting the complex molecular structure of fuchsine acid becomes essential, serving as the foundation for understanding its physicochemical features. This article employs topological modeling, specifically a connection number edge partition, to explore the supramolecular nature of fuchsine acid. Closed formulae for key degree-based molecular descriptors are derived, aiming to illuminate the effectiveness of these descriptors for QSAR and QSPR analyses.
    Language English
    Publishing date 2024-04-04
    Publishing country France
    Document type Journal Article
    ZDB-ID 2004003-9
    ISSN 1292-895X ; 1292-8941
    ISSN (online) 1292-895X
    ISSN 1292-8941
    DOI 10.1140/epje/s10189-024-00418-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  5. Article ; Online: Some stable and closed-shell structures of anticancer drugs by graph theoretical parameters

    Ali N.A. Koam / Ali Ahmad / Muhammad Azeem / Khalil Hadi Hakami / Kashif Elahi

    Heliyon, Vol 9, Iss 6, Pp e17122- (2023)

    2023  

    Abstract: The eigenvalues are significant in mathematics, but they are also relevant in other domains like as chemistry, economics, and a variety of others. In terms of our research, eigenvalues are used in chemistry to represent not only the form of energy but ... ...

    Abstract The eigenvalues are significant in mathematics, but they are also relevant in other domains like as chemistry, economics, and a variety of others. In terms of our research, eigenvalues are used in chemistry to represent not only the form of energy but also the various physicochemical aspects of a chemical substance. We must comprehend the connection between mathematics and chemistry. The antibonding level is related to positive eigenvalues, the bonding level is associated to negative eigenvalues, and the nonbonding level is linked to zero eigenvalues. In this work, we studied some anticancer drug structures in terms of nullity, matching number, eigenvalues of adjacency matrix, and characteristics polynomials. As a result, Carmustine, Caulibugulone-E, Aspidostomide-E anticancer drug structures are stable, closed-shell molecules since their nullity is equal to zero.
    Keywords Nullity ; Matching number ; Energy ; Inertia ; Characteristics polynomials ; Eigenvalues ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 115
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Article ; Online: Prevalence of hypertension and its risk factors among cotton textile workers in low- and middle-income countries: a systematic review.

    Ali, N A / Feroz, A / Khoja, A

    Public health

    2022  Volume 211, Page(s) 128–135

    Abstract: Objective: The objective of this study was to evaluate the prevalence of hypertension and its risk factors among adult cotton textile workers in low- and middle-income countries (LMICs).: Study design: Systematic review.: Methods: A review of ... ...

    Abstract Objective: The objective of this study was to evaluate the prevalence of hypertension and its risk factors among adult cotton textile workers in low- and middle-income countries (LMICs).
    Study design: Systematic review.
    Methods: A review of English articles was performed between January 1, 2000, and December 31, 2021, using the following databases: PubMed/MEDLINE, Scopus, Web of Science, and Cochrane Library. Studies that measure the prevalence and risk factors of hypertension among adult cotton textile workers in LMICs were included. Extraction of articles and quality assessment of included studies were performed independently by two authors using the Mixed Methods Appraisal Tool checklist.
    Results: Of 2476 titles screened after duplication, 50 studies were shortlisted for full-text review, and a total of 10 studies were included. Of those 10 studies, seven were carried out in India, one in Indonesia, Iraq, and Iran. Using Stata version 6, the pooled prevalence of hypertension among the cotton textile workers was 18.0% (95% confidence interval: 11.0-25.0, random effect model: I
    Conclusion: The limited available evidence indicates a significant prevalence of hypertension among cotton workers in LMICs. In the wave of double burden of non-communicable diseases in developing countries, considering context-specific risk factors is critical in controlling hypertension by prioritizing organizational plans and policies to optimize workers' health.
    Prospero registration number: CRD42020167175.
    MeSH term(s) Adult ; Developing Countries ; Humans ; Hypertension/epidemiology ; Prevalence ; Risk Factors ; Textiles
    Language English
    Publishing date 2022-09-13
    Publishing country Netherlands
    Document type Journal Article ; Review ; Systematic Review
    ZDB-ID 427333-3
    ISSN 1476-5616 ; 0033-3506
    ISSN (online) 1476-5616
    ISSN 0033-3506
    DOI 10.1016/j.puhe.2022.07.020
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.B 540: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)
    Ab 150: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  7. Article: Some stable and closed-shell structures of anticancer drugs by graph theoretical parameters.

    Koam, Ali N A / Ahmad, Ali / Azeem, Muhammad / Hakami, Khalil Hadi / Elahi, Kashif

    Heliyon

    2023  Volume 9, Issue 6, Page(s) e17122

    Abstract: The eigenvalues are significant in mathematics, but they are also relevant in other domains like as chemistry, economics, and a variety of others. In terms of our research, eigenvalues are used in chemistry to represent not only the form of energy but ... ...

    Abstract The eigenvalues are significant in mathematics, but they are also relevant in other domains like as chemistry, economics, and a variety of others. In terms of our research, eigenvalues are used in chemistry to represent not only the form of energy but also the various physicochemical aspects of a chemical substance. We must comprehend the connection between mathematics and chemistry. The antibonding level is related to positive eigenvalues, the bonding level is associated to negative eigenvalues, and the nonbonding level is linked to zero eigenvalues. In this work, we studied some anticancer drug structures in terms of nullity, matching number, eigenvalues of adjacency matrix, and characteristics polynomials. As a result, Carmustine, Caulibugulone-E, Aspidostomide-E anticancer drug structures are stable, closed-shell molecules since their nullity is equal to zero.
    Language English
    Publishing date 2023-06-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e17122
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  8. Article ; Online: Connection number topological aspect for backbone DNA networks.

    Ahmad, Ali / Koam, Ali N A / Masmali, Ibtisam / Azeem, Muhammad / Ghazwani, Haleemah

    The European physical journal. E, Soft matter

    2023  Volume 46, Issue 12, Page(s) 120

    Abstract: The present study investigates the complex topological characteristics of DNA networks, with a specific emphasis on the innovative metric known as Connection Number (CN) as a key factor in determining network structure. The Connection Number, represented ...

    Abstract The present study investigates the complex topological characteristics of DNA networks, with a specific emphasis on the innovative metric known as Connection Number (CN) as a key factor in determining network structure. The Connection Number, represented as CN(v) for a vertex v, measures the count of unique paths that link v to every other vertex in the network. By employing rigorous mathematical modeling and analysis techniques, we are able to reveal the profound implications of CN (complex networks) in characterizing the structural robustness and dynamics of information flow within DNA networks. The study of how the theory of graphs and chemicals interact is known as chemical graph theory. This paper, computing the hyper Zagreb connection index, augmented connection index, inverse sum connection index, harmonic connection index, symmetric division connection index, geometric arithmetic connection index, and atom bond connectivity connection index, of two significant types of backbone DNA and Barycentric subdivision of backbone DNA networks. Direct method computation is used to produce these Connection-based topological descriptors.
    MeSH term(s) DNA
    Chemical Substances DNA (9007-49-2)
    Language English
    Publishing date 2023-12-06
    Publishing country France
    Document type Journal Article
    ZDB-ID 2004003-9
    ISSN 1292-895X ; 1292-8941
    ISSN (online) 1292-895X
    ISSN 1292-8941
    DOI 10.1140/epje/s10189-023-00381-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  9. Article ; Online: Bounds on the partition dimension of one pentagonal carbon nanocone structure

    Ali N.A. Koam / Ali Ahmad / Muhammad Azeem / Muhammad Faisal Nadeem

    Arabian Journal of Chemistry, Vol 15, Iss 7, Pp 103923- (2022)

    2022  

    Abstract: The partition dimension is the most complicated resolving parameter of all the resolvability parameters. In this parameter, the vertex set of a graph is completely subdivided into subsets so that each vertex of a graph has a unique identification in ... ...

    Abstract The partition dimension is the most complicated resolving parameter of all the resolvability parameters. In this parameter, the vertex set of a graph is completely subdivided into subsets so that each vertex of a graph has a unique identification in terms of the partitioning of its selected subsets. In this paper, we consider Carbon nanocone structure (CNC) more specifically one pentagonal carbon nanocone CNCζ,5. It is also regarded as a useful structure in terms of various applications. To delve deeper into this structure, we provide a graphical representation of it and identified sharp bounds for the partition dimension. We conclude that the pentagonal carbon nanocone CNCζ,5 has partition dimension ≤4.
    Keywords One pentagonal carbon nanocone ; Partition dimension ; Bounds on the partition dimension ; Resolving partition set ; Chemistry ; QD1-999
    Language English
    Publishing date 2022-07-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  10. Article ; Online: Topological properties of reverse-degree-based indices for sodalite materials network

    Ali N.A. Koam / Moin A. Ansari / Azeem Haider / Ali Ahmad / Muhammad Azeem

    Arabian Journal of Chemistry, Vol 15, Iss 10, Pp 104160- (2022)

    2022  

    Abstract: Natural zeolites are frequently referred to as macromolecular sieves. Because of relatively inexpensive cost of installation, zeolites networks are highly trendy chemical networks. Amongst the most researched types of zeolite networks is the sodalite ... ...

    Abstract Natural zeolites are frequently referred to as macromolecular sieves. Because of relatively inexpensive cost of installation, zeolites networks are highly trendy chemical networks. Amongst the most researched types of zeolite networks is the sodalite network. It contributes to the elimination of greenhouse gases. To investigate the above widely tested, we employ an authentic mathematical tool known as topological descriptors or index, which displays some physical and chemical properties numerically. To fully comprehend the structure, we compare different legitimate properties via topological indices, concluding in the form of figurative comparisons. In particularly, we measure some reverse degree-based indices for the sodalite materials network and put some light on the behavior of this network, in the form of topological descriptors and numerically designed equation of such network. This research is novel in terms of no one studied reverse-degree-based topological indices for this chosen structure.
    Keywords Sodalite materials network ; Topological indices ; Reverse degree ; Natural zeolites ; Chemistry ; QD1-999
    Subject code 510
    Language English
    Publishing date 2022-10-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top