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  1. Book ; Online: Lost at Sea

    Rath, Suman / Intriago, Andres / Sengupta, Shamik / Konstantinou, Charalambos

    Assessment and Evaluation of Rootkit Attacks on Shipboard Microgrids

    2023  

    Abstract: Increased dependence of the maritime industry on information and communication networks has made shipboard power systems vulnerable to stealthy cyber-attacks. One such attack variant, called rootkit, can leverage system knowledge to hide its presence and ...

    Abstract Increased dependence of the maritime industry on information and communication networks has made shipboard power systems vulnerable to stealthy cyber-attacks. One such attack variant, called rootkit, can leverage system knowledge to hide its presence and allow remotely located malware handlers to gain complete control of infected subsystems. This paper presents a comprehensive evaluation of the threat landscape imposed by such attack variants on Medium Voltage DC (MVDC) shipboard microgrids, including a discussion of their impact on the overall maritime sector in general, and provides several simulation results to demonstrate the same. It also analyzes and presents the actions of possible defense mechanisms, with specific emphasis on evasion, deception, and detection frameworks, that will help ship operators and maritime cybersecurity professionals protect their systems from such attacks.

    Comment: 2023 IEEE Electric Ship Technologies Symposium (ESTS)
    Keywords Computer Science - Cryptography and Security ; Electrical Engineering and Systems Science - Systems and Control
    Publishing date 2023-05-29
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Book ; Online: Improvise, Adapt, Overcome

    Rath, Suman / Das, Tapadhir / Sengupta, Shamik

    Dynamic Resiliency Against Unknown Attack Vectors in Microgrid Cybersecurity Games

    2023  

    Abstract: Cyber-physical microgrids are vulnerable to rootkit attacks that manipulate system dynamics to create instabilities in the network. Rootkits tend to hide their access level within microgrid system components to launch sudden attacks that prey on the slow ...

    Abstract Cyber-physical microgrids are vulnerable to rootkit attacks that manipulate system dynamics to create instabilities in the network. Rootkits tend to hide their access level within microgrid system components to launch sudden attacks that prey on the slow response time of defenders to manipulate system trajectory. This problem can be formulated as a multi-stage, non-cooperative, zero-sum game with the attacker and the defender modeled as opposing players. To solve the game, this paper proposes a deep reinforcement learning-based strategy that dynamically identifies rootkit access levels and isolates incoming manipulations by incorporating changes in the defense plan. A major advantage of the proposed strategy is its ability to establish resiliency without altering the physical transmission/distribution network topology, thereby diminishing potential instability issues. The paper also presents several simulation results and case studies to demonstrate the operating mechanism and robustness of the proposed strategy.
    Keywords Computer Science - Cryptography and Security ; Electrical Engineering and Systems Science - Systems and Control
    Subject code 303
    Publishing date 2023-06-26
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: SEPN1-Related Myopathy: The Importance of Diagnosis and Challenges to Management of CMD in Resource Poor Settings.

    Gajam, Siddhartha / Maganthi, Madhuri / Mathew, Ann Agnes / Rath, Suman

    Annals of Indian Academy of Neurology

    2021  Volume 24, Issue 6, Page(s) 955–956

    Language English
    Publishing date 2021-03-05
    Publishing country India
    Document type Journal Article
    ZDB-ID 2240174-X
    ISSN 1998-3549 ; 0972-2327
    ISSN (online) 1998-3549
    ISSN 0972-2327
    DOI 10.4103/aian.AIAN_655_20
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Book ; Online: Self-Healing Secure Blockchain Framework in Microgrids

    Rath, Suman / Nguyen, Lam Duc / Sahoo, Subham / Popovski, Petar

    2022  

    Abstract: Blockchain has recently been depicted as a secure protocol for information exchange in cyber-physical microgrids. However, it is still found vulnerable to consensus manipulation attacks. These stealth attacks are often difficult to detect as they use ... ...

    Abstract Blockchain has recently been depicted as a secure protocol for information exchange in cyber-physical microgrids. However, it is still found vulnerable to consensus manipulation attacks. These stealth attacks are often difficult to detect as they use kernel-level access to mask their actions. In this paper, we firstly build a trusted and secured peer-to-peer network mechanism for physical DC microgrids' validation of transactions over Distributed Ledger. Secondly, we leverage from a physics-informed approach for detecting malware-infected nodes and then recovering from stealth attacks using a self-healing recovery scheme augmented into the microgrid Blockchain network. This scheme allows compromised nodes to adapt to a reconstructed trustworthy signal in a multi-hop manner using corresponding measurements from the reliable nodes in the network. Additionally, recognizing the possible threat of denial-of-service attacks and random time delays (where information sharing via communication channels is blocked), we also integrate a model-free predictive controller with the proposed system that can locally reconstruct an expected version of the attacked/delayed signals. This supplements the capabilities of Blockchain, enabling it to detect and mitigate consensus manipulation attempts, and network latencies.

    Comment: Accepted for publication in IEEE Transactions on Smart Grid
    Keywords Computer Science - Cryptography and Security ; Electrical Engineering and Systems Science - Systems and Control
    Subject code 303
    Publishing date 2022-09-15
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: Plasmodium vivax malaria presenting with severe thrombocytopenia.

    Aggarwal, Anju / Rath, Suman / Shashiraj

    Journal of tropical pediatrics

    2005  Volume 51, Issue 2, Page(s) 120–121

    Abstract: Haematological changes are common in malaria. Thrombocytopenia is a common finding in falciparum infection but rare in Plasmodium vivax. We report a case of 7-year-old male patient presenting with fever, petechial rash, and platelet counts of 6 x 10(9)/l ...

    Abstract Haematological changes are common in malaria. Thrombocytopenia is a common finding in falciparum infection but rare in Plasmodium vivax. We report a case of 7-year-old male patient presenting with fever, petechial rash, and platelet counts of 6 x 10(9)/l due to Plasmodium vivax malaria.
    MeSH term(s) Child ; Humans ; India ; Malaria, Vivax/complications ; Male ; Thrombocytopenia/diagnosis ; Thrombocytopenia/parasitology ; Thrombocytopenia/therapy
    Language English
    Publishing date 2005-04
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 800065-7
    ISSN 0142-6338 ; 0449-3281
    ISSN 0142-6338 ; 0449-3281
    DOI 10.1093/tropej/fmh107
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Cefpodoxime - utility in respiratory tract infections and typhoid fever.

    Aggarwal, Anju / Rath, Suman

    Indian journal of pediatrics

    2004  Volume 71, Issue 5, Page(s) 413–415

    Abstract: Cefpodoxime is a oral third generation cephalosporin active against most of gram positive and gram negative bacteria except Pseudomonas, B. fragilis and Entrococcous. Clinical studies have confirmed efficacy of cefpodoxime in acute otitis media, ... ...

    Abstract Cefpodoxime is a oral third generation cephalosporin active against most of gram positive and gram negative bacteria except Pseudomonas, B. fragilis and Entrococcous. Clinical studies have confirmed efficacy of cefpodoxime in acute otitis media, sinusitis and tosillopharyngitis. Twice daily administration and safety profile increases compliance and decreases failure rate. It has a role as switch over therapy from intravenous ceftriaxone in serious respiratory tract infections (RTIs). In areas where common respiratory pathogens show decreased sensitivity to penicillins and macrolides cefpodoxime can be used as empirical first line therapy in respiratory tract infections. It seems to be a promising molecule in pediatric typhoid fever because of its excellent activity against Salmonella species but clinical trials are limited.
    MeSH term(s) Administration, Oral ; Biological Availability ; Ceftizoxime/analogs & derivatives ; Ceftizoxime/pharmacokinetics ; Ceftizoxime/therapeutic use ; Dose-Response Relationship, Drug ; Drug Administration Schedule ; Female ; Gram-Negative Bacterial Infections/drug therapy ; Gram-Positive Bacterial Infections/drug therapy ; Humans ; Male ; Microbial Sensitivity Tests ; Respiratory Tract Infections/drug therapy ; Respiratory Tract Infections/microbiology ; Sensitivity and Specificity ; Treatment Outcome ; Typhoid Fever/diagnosis ; Typhoid Fever/drug therapy ; Cefpodoxime
    Chemical Substances Ceftizoxime (C43C467DPE)
    Language English
    Publishing date 2004-05-26
    Publishing country India
    Document type Comparative Study ; Journal Article ; Review
    ZDB-ID 218231-2
    ISSN 0973-7693 ; 0019-5456
    ISSN (online) 0973-7693
    ISSN 0019-5456
    DOI 10.1007/BF02725629
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Rickets: a cause of delayed walking in toddlers.

    Agarwal, Anil / Gulati, Divesh / Rath, Suman / Walia, Mandeep

    Indian journal of pediatrics

    2009  Volume 76, Issue 3, Page(s) 269–272

    Abstract: Objective: Children with complaints of not able to walk were investigated for rickets by appropriate history, clinical examination, serum biochemistry and radiology.: Methods: Children more than 1 yr were included. Each child was evaluated keeping in ...

    Abstract Objective: Children with complaints of not able to walk were investigated for rickets by appropriate history, clinical examination, serum biochemistry and radiology.
    Methods: Children more than 1 yr were included. Each child was evaluated keeping in mind the possible causes of delayed walking. Also each child was thoroughly examined and diagnosed by combination of clinical, radiological, biochemical findings and response to treatment.
    Results: Out of forty-two non-walkers during the study period, 25 patients turned out to be affected by nutritional rickets (60%). On follow-up at 3 weeks of treatment, all 25 patients (100%) showed radiological and biochemical response. Five patients were lost to follow-up after 3 weeks of treatment. Seventeen patients started walking within 3 months of treatment. Two patients did not start walking even after complete biochemical and radiological resolution. Radiological resolution, with limiting factor being the healing of lower end of ulna, averaged 5 months.
    Conclusion: The study reveals that majority of ricketic non-walkers start walking within 2 to 5 months of appropriate treatment.
    MeSH term(s) Alkaline Phosphatase/blood ; Calcium/blood ; Child, Preschool ; Female ; Follow-Up Studies ; Humans ; Infant ; Injections, Intramuscular ; Male ; Rickets/diagnosis ; Rickets/drug therapy ; Rickets/physiopathology ; Treatment Outcome ; Vitamin D/therapeutic use ; Walking/physiology
    Chemical Substances Vitamin D (1406-16-2) ; Alkaline Phosphatase (EC 3.1.3.1) ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 2009-04-06
    Publishing country India
    Document type Journal Article
    ZDB-ID 218231-2
    ISSN 0973-7693 ; 0019-5456
    ISSN (online) 0973-7693
    ISSN 0019-5456
    DOI 10.1007/s12098-009-0052-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Profile of fisting in term newborns.

    Faridi, M M A / Rath, Suman / Aggarwal, Anju

    European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society

    2005  Volume 9, Issue 2, Page(s) 67–70

    Abstract: Background: Persistence of fisting of hands and cortical thumb is a predictor of abnormalities in development and dysfunction of the central nervous system, though this may be a normal finding in the immediate newborn period.: Aim: To study the ... ...

    Abstract Background: Persistence of fisting of hands and cortical thumb is a predictor of abnormalities in development and dysfunction of the central nervous system, though this may be a normal finding in the immediate newborn period.
    Aim: To study the profile of fisting in early neonatal period.
    Methods: Five hundred and fifty healthy term neonates were studied. Hand position was examined by a single observer between 24-48h of birth when the baby was awake and quiet. Complete fisting was defined as flexed fingers covering both proximal and distal palmer creases. If only the distal crease was covered, it was defined as incomplete fisting. Thumb position was observed as thumb by the side of the fingers, under the fingers and above the fingers.
    Results: Of the total 550 babies, 338 (61.45%) had bilateral, 39 (7.09%) had right sided and 38 (6.91%) had left sided fisting and 135 (24.55%) had open hands. Of the 1100 hands, 669 hands (60.8%) had complete and 84 (7.63%) had incomplete fisting. "Cortical thumb" was found in 57% of fisted hands. There was no significant difference (p>0.05) in fisting according to the sex and weight of the babies.
    Conclusion: Fisting was a predominant hand posture among the babies (75.45%) but cortical thumb with bilateral fisting was seen in only 30% of babies.
    MeSH term(s) Female ; Hand/physiology ; Humans ; Infant Behavior/physiology ; Infant, Low Birth Weight/physiology ; Infant, Newborn/physiology ; Male ; Motor Activity/physiology ; Posture/physiology
    Language English
    Publishing date 2005
    Publishing country England
    Document type Journal Article
    ZDB-ID 1397146-3
    ISSN 1090-3798
    ISSN 1090-3798
    DOI 10.1016/j.ejpn.2005.01.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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