LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 53

Search options

  1. Article ; Online: Blockchain-Based Architecture for a Sustainable Supply Chain in Cloud Architecture

    Seyyed-Alireza Radmanesh / Alireza Haji / Omid Fatahi Valilai

    Sustainability, Vol 15, Iss 9072, p

    2023  Volume 9072

    Abstract: Blockchain technology, as a well-known technology in financial spaces, has many advantages in non-financial industries and supply chains. Two of the main benefits of blockchain technology are smart contracts and distributed decision-making processes. ... ...

    Abstract Blockchain technology, as a well-known technology in financial spaces, has many advantages in non-financial industries and supply chains. Two of the main benefits of blockchain technology are smart contracts and distributed decision-making processes. These features can be especially useful in implementing Industry 4.0. Moreover, this technology can increase productivity in supply chains by enhancing transparency, reducing operational costs, and improving monitoring and supervision throughout the lifecycle of products. In this paper, we introduce a blockchain-based architecture for a supply chain in cloud architecture. This approach leads to the more efficient implementation of Industry 4.0 and increases sustainability in the supply chain. In this study, we aim to investigate whether the proposed blockchain-based platform affects sustainability in the supply chain. From a sustainability perspective, we solve the large-scale problem of a cloud-based production–distribution system in centralized and distributed states. The results of the solution indicate a significant improvement in the decentralized state compared to the centralized state and this improvement enhances sustainability in the supply chain. We verify the proposed model by considering an axiomatic design algorithm. In the distributed model, the system cost is reduced by up to 45%, and the solving time is decreased by approximately 51% in pessimistic conditions and by about 87% in optimistic conditions. These improvements directly enhance economic and environmental sustainability, resulting in reduced energy consumption.
    Keywords blockchain technology ; cloud-based production–distribution system ; Industry 4.0 ; sustainable supply chain ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Subject code 620
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  2. Article ; Online: Case 299: Sellar Spine.

    Radmanesh, Alireza / Young, Matthew G

    Radiology

    2022  Volume 302, Issue 3, Page(s) 724–728

    Abstract: History Part one of this case appeared 4 months previously and may contain larger images. A 32-year-old woman presented to an ophthalmologist for bilateral blurry vision. She underwent MRI of the brain and orbits, which showed a focal abnormality within ... ...

    Abstract History Part one of this case appeared 4 months previously and may contain larger images. A 32-year-old woman presented to an ophthalmologist for bilateral blurry vision. She underwent MRI of the brain and orbits, which showed a focal abnormality within the pituitary gland. The patient was referred to an endocrinologist for further evaluation. Review of systems and physical examination by the endocrinologist revealed no symptoms or signs of endocrine dysfunction. Anterior pituitary hormone levels, including growth hormone, prolactin, thyroid stimulating hormone, follicular-stimulating hormone, luteinizing hormone, and adrenocorticotropic hormone, were normal. Dynamic contrast-enhanced MRI of the sella and pituitary gland and subsequent CT of the anterior skull base were performed.
    MeSH term(s) Adult ; Diagnosis, Differential ; Female ; Humans ; Magnetic Resonance Imaging ; Sella Turcica/abnormalities ; Sella Turcica/diagnostic imaging ; Tomography, X-Ray Computed
    Language English
    Publishing date 2022-02-23
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 80324-8
    ISSN 1527-1315 ; 0033-8419
    ISSN (online) 1527-1315
    ISSN 0033-8419
    DOI 10.1148/radiol.203443
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Case 299.

    Radmanesh, Alireza / Young, Matthew G

    Radiology

    2021  Volume 301, Issue 2, Page(s) 487–489

    Abstract: History A 32-year-old woman presented to an ophthalmologist for bilateral blurry vision. She underwent MRI of the brain and orbits, which showed a focal abnormality within the pituitary gland. The patient was referred to an endocrinologist for further ... ...

    Abstract History A 32-year-old woman presented to an ophthalmologist for bilateral blurry vision. She underwent MRI of the brain and orbits, which showed a focal abnormality within the pituitary gland. The patient was referred to an endocrinologist for further evaluation. Review of systems and physical examination by the endocrinologist revealed no symptoms or signs of endocrine dysfunction. Anterior pituitary hormone levels, including growth hormone, prolactin, thyroid stimulating hormone, follicular stimulating hormone, luteinizing hormone, and adrenocorticotropic hormone, were normal. Dynamic contrast-enhanced MRI of the sella and pituitary gland (Figs 1-3) and subsequent CT of the anterior skull base (Figs 4, 5) were performed.
    Language English
    Publishing date 2021-10-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80324-8
    ISSN 1527-1315 ; 0033-8419
    ISSN (online) 1527-1315
    ISSN 0033-8419
    DOI 10.1148/radiol.2021203442
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Blockchain-based cloud manufacturing platforms: A novel idea for service composition in XaaS paradigm.

    Radmanesh, Seyyed-Alireza / Haji, Alireza / Fatahi Valilai, Omid

    PeerJ. Computer science

    2021  Volume 7, Page(s) e743

    Abstract: Cloud manufacturing is a new globalized manufacturing framework which has improved the performance of manufacturing systems. The service-oriented architecture as the main idea behind this framework means that all resources and capabilities are considered ...

    Abstract Cloud manufacturing is a new globalized manufacturing framework which has improved the performance of manufacturing systems. The service-oriented architecture as the main idea behind this framework means that all resources and capabilities are considered as services. The agents interact by way of service exchanging, which has been a part of service composition research topics. Service allocations to demanders in a cloud manufacturing system have a dynamic behavior. However, the current research studies on cloud-based service composition are mainly based on centralized global optimization models. Therefore, a distributed deployment and real-time synchronization platform, which enables the globalized collaboration in service composition, is required. This paper proposes a method of using blockchain to solve these issues. Each service composition is considered as a transaction in the blockchain concept. A block includes a set of service compositions and its validity is confirmed by a predefined consensus mechanism. In the suggested platform, the mining role in blockchain is interpreted as an endeavor for proposing the proper service composition in the manufacturing paradigm. The proposed platform has interesting capabilities as it can increase the response time using the blockchain technology and improve the overall optimality of supply-demand matching in cloud manufacturing. The efficiency of the proposed model was evaluated by investigating a service allocation problem in a cloud manufacturing system in four large scale problems. Each problem is examined in four centralized modes, two, three and four solvers in blockchain-based model. The simulation results indicate the high quality of the proposed solution. The proposed solution will lead to at least 15.14% and a maximum of 34.8 percent reduction in costs and 20 to 68.4 percent at the solving time of the problem. It is also observed that with increasing the number of solvers (especially in problems with larger dimensions) the solution speed increases sharply (more than 68% improvement in some problems), which indicates the positive effect of distribution on reducing the problem-solving time.
    Language English
    Publishing date 2021-12-08
    Publishing country United States
    Document type Journal Article
    ISSN 2376-5992
    ISSN (online) 2376-5992
    DOI 10.7717/peerj-cs.743
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: A Worm's Tale or Why to Avoid the Raccoon Latrine: A Case of

    Goldman-Yassen, Adam E / Derman, Anna / Madan, Rebecca Pellett / Radmanesh, Alireza

    Case reports in radiology

    2022  Volume 2022, Page(s) 5199863

    Abstract: The raccoon ... ...

    Abstract The raccoon roundworm
    Language English
    Publishing date 2022-08-21
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2627655-0
    ISSN 2090-6870 ; 2090-6862
    ISSN (online) 2090-6870
    ISSN 2090-6862
    DOI 10.1155/2022/5199863
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Blockchain-based cloud manufacturing platforms

    Seyyed-Alireza Radmanesh / Alireza Haji / Omid Fatahi Valilai

    PeerJ Computer Science, Vol 7, p e

    A novel idea for service composition in XaaS paradigm

    2021  Volume 743

    Abstract: Cloud manufacturing is a new globalized manufacturing framework which has improved the performance of manufacturing systems. The service-oriented architecture as the main idea behind this framework means that all resources and capabilities are considered ...

    Abstract Cloud manufacturing is a new globalized manufacturing framework which has improved the performance of manufacturing systems. The service-oriented architecture as the main idea behind this framework means that all resources and capabilities are considered as services. The agents interact by way of service exchanging, which has been a part of service composition research topics. Service allocations to demanders in a cloud manufacturing system have a dynamic behavior. However, the current research studies on cloud-based service composition are mainly based on centralized global optimization models. Therefore, a distributed deployment and real-time synchronization platform, which enables the globalized collaboration in service composition, is required. This paper proposes a method of using blockchain to solve these issues. Each service composition is considered as a transaction in the blockchain concept. A block includes a set of service compositions and its validity is confirmed by a predefined consensus mechanism. In the suggested platform, the mining role in blockchain is interpreted as an endeavor for proposing the proper service composition in the manufacturing paradigm. The proposed platform has interesting capabilities as it can increase the response time using the blockchain technology and improve the overall optimality of supply-demand matching in cloud manufacturing. The efficiency of the proposed model was evaluated by investigating a service allocation problem in a cloud manufacturing system in four large scale problems. Each problem is examined in four centralized modes, two, three and four solvers in blockchain-based model. The simulation results indicate the high quality of the proposed solution. The proposed solution will lead to at least 15.14% and a maximum of 34.8 percent reduction in costs and 20 to 68.4 percent at the solving time of the problem. It is also observed that with increasing the number of solvers (especially in problems with larger dimensions) the solution speed increases sharply ...
    Keywords Cloud manufacturing ; Blockchain technology ; Service composition ; Proof of optimality ; Electronic computers. Computer science ; QA75.5-76.95
    Subject code 629
    Language English
    Publishing date 2021-12-01T00:00:00Z
    Publisher PeerJ Inc.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  7. Article ; Online: COVID-19-associated delayed posthypoxic necrotizing leukoencephalopathy.

    Radmanesh, Alireza / Derman, Anna / Ishida, Koto

    Journal of the neurological sciences

    2020  Volume 415, Page(s) 116945

    MeSH term(s) Betacoronavirus/isolation & purification ; COVID-19 ; Coronavirus Infections/complications ; Coronavirus Infections/virology ; Humans ; Hypoxia, Brain/complications ; Hypoxia, Brain/pathology ; Leukoencephalopathies/complications ; Leukoencephalopathies/diagnostic imaging ; Male ; Middle Aged ; Pandemics ; Pneumonia, Viral/complications ; Pneumonia, Viral/virology ; SARS-CoV-2 ; White Matter/pathology
    Keywords covid19
    Language English
    Publishing date 2020-05-27
    Publishing country Netherlands
    Document type Case Reports ; Letter
    ZDB-ID 80160-4
    ISSN 1878-5883 ; 0022-510X ; 0374-8642
    ISSN (online) 1878-5883
    ISSN 0022-510X ; 0374-8642
    DOI 10.1016/j.jns.2020.116945
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Anatomical variations in posterior part of the circle of Willis and their associations with brain infarct in different vascular territories

    Maryam Haghighimorad / Hooman Bahrami-Motlagh / Elahe Salehi / Alireza Radmanesh

    The Egyptian Journal of Radiology and Nuclear Medicine, Vol 53, Iss 1, Pp 1-

    2022  Volume 7

    Abstract: Abstract Background The relationship between anatomical variations in circle of Willis and brain infarction is controversial. The purpose of this study was to evaluate the relationship between anatomical variations in posterior portion of the circle of ... ...

    Abstract Abstract Background The relationship between anatomical variations in circle of Willis and brain infarction is controversial. The purpose of this study was to evaluate the relationship between anatomical variations in posterior portion of the circle of Willis assessed by MR angiography (MRA) and ischemic infarction in different brain territories. Methods This cross-sectional study was conducted on consecutive patients who underwent brain MRI and MRA for suspected cerebrovascular accident. The frequency of anatomical variations including persistent fetal origin of posterior cerebral artery (fPCA) and hypoplastic/aplastic posterior communicating artery (PCoA) and their association with infarction in different intracranial vascular territories was assessed. Results In total, 298 patients (155 male/143 female with mean age ± SD of 57 ± 15) were enrolled in the study and categorized into two groups with infarction (n = 142) and without infarction (n = 156). Sixty-three patients (21/1%) had fPCA and 231 (77.5%) had PCoA hypoplasia/aplasia. No significant correlation was identified between fPCA or PCoA hypoplasia/aplasia and presence of infarction. However, regarding the territories involved by infarction, the frequency of thalamus infarction was higher in subgroup with PCoA hypoplasia/aplasia, 17/101 (16.8%) compared to 1/41(2.4%) in the subgroup without ipsilateral PCoA hypoplasia/aplasia (p = 0.024). In two subgroups with and without ipsilateral fPCA variation, frequency of infarction in brain territories was not different significantly. Conclusions In patients with brain infarction, aplastic/hypoplastic ipsilateral PCoA is associated with higher incidence of thalamic territory infarction.
    Keywords Circle of Willis ; MR angiogram ; Posterior cerebral artery ; Posterior communicating artery ; Brain infarction ; Medical physics. Medical radiology. Nuclear medicine ; R895-920
    Subject code 616 ; 610
    Language English
    Publishing date 2022-02-01T00:00:00Z
    Publisher SpringerOpen
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  9. Article ; Online: Online spike sorting via deep contractive autoencoder.

    Radmanesh, Mohammadreza / Rezaei, Ahmad Asgharian / Jalili, Mahdi / Hashemi, Alireza / Goudarzi, Morteza Moazami

    Neural networks : the official journal of the International Neural Network Society

    2022  Volume 155, Page(s) 39–49

    Abstract: Spike sorting - the process of separating spikes from different neurons - is often the first and most critical step in the neural data analysis pipeline. Spike-sorting techniques isolate a single neuron's activity from background electrical noise based ... ...

    Abstract Spike sorting - the process of separating spikes from different neurons - is often the first and most critical step in the neural data analysis pipeline. Spike-sorting techniques isolate a single neuron's activity from background electrical noise based on the shapes of the waveforms obtained from extracellular recordings. Despite several advancements in this area, an important remaining challenge in neuroscience is online spike sorting, which has the potential to significantly advance basic neuroscience research and the clinical setting by providing the means to produce real-time perturbations of neurons via closed-loop control. Current approaches to online spike sorting are not fully automated, are computationally expensive and are often outperformed by offline approaches. In this paper, we present a novel algorithm for fast and robust online classification of single neuron activity. This algorithm is based on a deep contractive autoencoder (CAE) architecture. CAEs are neural networks that can learn a latent state representation of their inputs. The main advantage of CAE-based approaches is that they are less sensitive to noise (i.e., small perturbations in their inputs). We therefore reasoned that they can form the basis for robust online spike sorting algorithms. Overall, our deep CAE-based online spike sorting algorithm achieves over 90% accuracy in sorting unseen spike waveforms, outperforming existing models and maintaining a performance close to the offline case. In the offline scenario, our method substantially outperforms the existing models, providing an average improvement of 40% in accuracy over different datasets.
    MeSH term(s) Action Potentials/physiology ; Models, Neurological ; Signal Processing, Computer-Assisted ; Algorithms ; Neurons/physiology
    Language English
    Publishing date 2022-08-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 740542-x
    ISSN 1879-2782 ; 0893-6080
    ISSN (online) 1879-2782
    ISSN 0893-6080
    DOI 10.1016/j.neunet.2022.08.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Cerebral amyloidoma: A mimicker of granulomatous disease on brain MRI.

    Radmanesh, Alireza / Wood, Matthew D / Bollen, Andrew W

    Journal of neuroradiology = Journal de neuroradiologie

    2019  Volume 46, Issue 5, Page(s) 336–339

    MeSH term(s) Amyloidosis/complications ; Amyloidosis/diagnostic imaging ; Amyloidosis/pathology ; Brain/diagnostic imaging ; Brain/pathology ; Brain Neoplasms/complications ; Brain Neoplasms/diagnostic imaging ; Brain Neoplasms/pathology ; Diagnosis, Differential ; Gliosis/diagnostic imaging ; Gliosis/pathology ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged
    Language English
    Publishing date 2019-03-07
    Publishing country France
    Document type Case Reports ; Letter
    ZDB-ID 131763-5
    ISSN 1773-0406 ; 0150-9861
    ISSN (online) 1773-0406
    ISSN 0150-9861
    DOI 10.1016/j.neurad.2019.02.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top