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  1. Book ; Online: The Art of Insight in Science and Engineering : Mastering Complexity

    Mahajan, Sanjoy

    2014  

    Keywords Industrial applications of scientific research & technological innovation ; Maths for engineers ; Intermediate technology ; Industrial applications of scientific research and technological innovation ; Engineering: general ; Applied mathematics
    Size 1 electronic resource (408 pages)
    Publisher The MIT Press
    Publishing place Cambridge
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021290999
    ISBN 9780262526548 ; 0262526549
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article ; Online: Design and development of an open-source framework for citizen-centric environmental monitoring and data analysis.

    Mahajan, Sachit

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 14416

    Abstract: Cities around the world are struggling with environmental pollution. The conventional monitoring approaches are not effective for undertaking large-scale environmental monitoring due to logistical and cost-related issues. The availability of low-cost and ...

    Abstract Cities around the world are struggling with environmental pollution. The conventional monitoring approaches are not effective for undertaking large-scale environmental monitoring due to logistical and cost-related issues. The availability of low-cost and low-power Internet of Things (IoT) devices has proved to be an effective alternative to monitoring the environment. Such systems have opened up environment monitoring opportunities to citizens while simultaneously confronting them with challenges related to sensor accuracy and the accumulation of large data sets. Analyzing and interpreting sensor data itself is a formidable task that requires extensive computational resources and expertise. To address this challenge, a social, open-source, and citizen-centric IoT (Soc-IoT) framework is presented, which combines a real-time environmental sensing device with an intuitive data analysis and visualization application. Soc-IoT has two main components: (1) CoSense Unit-a resource-efficient, portable and modular device designed and evaluated for indoor and outdoor environmental monitoring, and (2) exploreR-an intuitive cross-platform data analysis and visualization application that offers a comprehensive set of tools for systematic analysis of sensor data without the need for coding. Developed as a proof-of-concept framework to monitor the environment at scale, Soc-IoT aims to promote environmental resilience and open innovation by lowering technological barriers.
    MeSH term(s) Cities ; Data Analysis ; Environmental Monitoring ; Monitoring, Physiologic
    Language English
    Publishing date 2022-08-24
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-18700-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Book ; Online: Street-Fighting Mathematics : The Art of Educated Guessing and Opportunistic Problem Solving

    Mahajan, Sanjoy

    2010  

    Keywords Popular mathematics ; Education ; Mathematics
    Size 1 electronic resource (152 pages)
    Publisher The MIT Press
    Publishing place Cambridge
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021291542
    ISBN 9780262514293 ; 026251429X
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  4. Article ; Online: Vayu

    Mahajan, Sachit

    Sensors (Basel, Switzerland)

    2021  Volume 21, Issue 22

    Abstract: Recent advances in sensor technology and the availability of low-cost and low-power sensors have changed the air quality monitoring paradigm. These sensors are being widely used by scientists and citizens for monitoring air quality at finer spatial- ... ...

    Abstract Recent advances in sensor technology and the availability of low-cost and low-power sensors have changed the air quality monitoring paradigm. These sensors are being widely used by scientists and citizens for monitoring air quality at finer spatial-temporal resolution. Such practices are opening up opportunities to enhance the traditional monitoring networks, but at the same time, these sensors are producing large data sets that can become overwhelming and challenging when it comes to the scientific tools and skills required to analyze the data. To address this challenge, an open-source, robust, and cross-platform sensor data analysis toolbox called
    MeSH term(s) Air Pollutants/analysis ; Air Pollution/analysis ; Crowdsourcing ; Environmental Monitoring
    Chemical Substances Air Pollutants
    Language English
    Publishing date 2021-11-20
    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/s21227726
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Heterogeneous attenuation of sound waves in three-dimensional amorphous solids.

    Mahajan, Shivam / Pica Ciamarra, Massimo

    Physical review. E

    2024  Volume 109, Issue 2-1, Page(s) 24605

    Abstract: Sound waves are attenuated as they propagate in amorphous materials. We investigate the mechanism driving sound attenuation in the Rayleigh scattering regime by resolving the dynamics of an excited phonon in time and space via numerical simulations. We ... ...

    Abstract Sound waves are attenuated as they propagate in amorphous materials. We investigate the mechanism driving sound attenuation in the Rayleigh scattering regime by resolving the dynamics of an excited phonon in time and space via numerical simulations. We find sound attenuation is spatiotemporally heterogeneous. It starts in localized regions, which identify soft regions within the material and correlate with low-frequency vibrational modes. As time progresses, the regions where sound is primarily attenuated invade the system via an apparent diffusive process.
    Language English
    Publishing date 2024-03-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2844562-4
    ISSN 2470-0053 ; 2470-0045
    ISSN (online) 2470-0053
    ISSN 2470-0045
    DOI 10.1103/PhysRevE.109.024605
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Depression, body image and quality of life in acne scars.

    Mahajan, Sachin / Sawant, Neena S / Mahajan, Sunanda

    Industrial psychiatry journal

    2023  Volume 32, Issue 2, Page(s) 282–287

    Abstract: Background: Acne scars commonly occur in almost 95% of adolescents having acne. Depression and the psychosocial impact of acne have been studied by previous researchers but there are few studies on acne scar patients.: Objectives: To study the ... ...

    Abstract Background: Acne scars commonly occur in almost 95% of adolescents having acne. Depression and the psychosocial impact of acne have been studied by previous researchers but there are few studies on acne scar patients.
    Objectives: To study the prevalence of depression, body image, and quality of life in patients with acne scars and the correlation of depression with body image and quality of life.
    Material and methods: Around 81 patients above 18 years of age clinically diagnosed as having different grades of acne by a dermatologist were assessed for depression using Becks Depression Inventory, Body image concern inventory, and Dermatology Life Quality Index and included in the study after being informed consent.
    Results: The mean duration of acne was 6.03 ± 2.9 years, and acne scar was 2.88 ± 1.2 years. Nearly 93% of our sample had an equal preponderance of Grade 1 and Grade 2 acne scars. 31 (38.27%) patients had clinical depression with a total mean BDI score of 16.8 ± 9.7. 15 (18.5%) and 7 (8.6%) patients had moderate and severe depression respectively. Only 5 (6.17%) patients reported significant body image disturbances. All patients reported a very large effect on the quality of life due to flaws in facial appearance leading to feelings of embarrassment and impairment in sexual activities. Depression was significantly associated with grade 1 and 2 scars, body image disturbances, and quality of life.
    Conclusions: There is a high prevalence of depression in patients with acne scarring which needs to be detected and treated. Liaison with a psychiatrist would improve the outcome.
    Language English
    Publishing date 2023-06-28
    Publishing country India
    Document type Journal Article
    ZDB-ID 2580355-4
    ISSN 0976-2795 ; 0972-6748
    ISSN (online) 0976-2795
    ISSN 0972-6748
    DOI 10.4103/ipj.ipj_201_22
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Gandhian thought and mental health - A critique.

    Mahajan, Smriti / Mahajan, Suman

    Indian journal of psychiatry

    2021  Volume 63, Issue 1, Page(s) 88–90

    Abstract: The entire gamut of psychiatric literature heavily references notions derived from western impressions. For many concepts, however, one need not go that far. The roots for various concepts, when examined closely, can be found in Gandhian thought and ... ...

    Abstract The entire gamut of psychiatric literature heavily references notions derived from western impressions. For many concepts, however, one need not go that far. The roots for various concepts, when examined closely, can be found in Gandhian thought and philosophy. Apart from his precious kernels in the fields of diet, sanitation and exercise; there are concepts in psychology, mental well-being and psychotherapy which seem like allusions to Gandhian principles. Nevertheless, to state that all his ideas hold true would be overzealous. His concepts of sexuality would not find favour with the modern mental health professional. The trick probably would be to see Gandhi in a more human light rather than the superhuman divinity that has been associated with him. This would allow us to better incorporate his principles in everyday life of regular individuals.
    Language English
    Publishing date 2021-02-15
    Publishing country India
    Document type Journal Article
    ZDB-ID 221523-8
    ISSN 0019-5545
    ISSN 0019-5545
    DOI 10.4103/psychiatry.IndianJPsychiatry_23_20
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 2038: Show issues Location:
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    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  8. Article ; Online: Fetal circular shunt in Ebstein's anomaly and non-steroidal anti-inflammatory treatment.

    Peña, F L / Emanuelson, T W / Todman, S H / Jones, R C / Mahajan, S

    Journal of neonatal-perinatal medicine

    2024  Volume 17, Issue 1, Page(s) 63–69

    Abstract: A circular shunt is a poor prognostic factor associated with Ebstein's anomaly. Targeting the constriction of the ductus arteriosus (DA) in order to limit or resolve the circular shunt, has been shown to improve fetal outcomes. Prenatal non-steroidal ... ...

    Abstract A circular shunt is a poor prognostic factor associated with Ebstein's anomaly. Targeting the constriction of the ductus arteriosus (DA) in order to limit or resolve the circular shunt, has been shown to improve fetal outcomes. Prenatal non-steroidal anti-inflammatory drugs (NSAIDs) have been known to constrict the DA. Recently, prenatal NSAIDs have been used for that purpose in the treatment of circular shunt. Limited research shows that it may be an effective treatment leading to improved fetal outcomes. In this article, we did an extensive review of literature to describe this therapy's effectiveness and outcomes. 82% of fetuses were able to achieve ductal constriction with prenatal NSAID therapy. For fetuses who achieved ductal constriction, fetal demise was less likely (6%) when compared to those who were unable to achieve the same (50%). Of all the fetuses with hydrops, 50% had resoluation of hydrops with prenatal NSAID treatment.
    MeSH term(s) Pregnancy ; Female ; Humans ; Ebstein Anomaly/drug therapy ; Anti-Inflammatory Agents, Non-Steroidal/therapeutic use ; Ductus Arteriosus, Patent/drug therapy ; Ductus Arteriosus/diagnostic imaging ; Edema
    Chemical Substances Anti-Inflammatory Agents, Non-Steroidal
    Language English
    Publishing date 2024-02-19
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2435387-5
    ISSN 1878-4429 ; 1934-5798
    ISSN (online) 1878-4429
    ISSN 1934-5798
    DOI 10.3233/NPM-230040
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Distinct Lineage of Slow-Cycling Cells Amidst the Prevailing Heterogeneity in Glioblastoma.

    Mahajan, Sukrit / Schmidt, Mirko H H

    Cancers

    2023  Volume 15, Issue 15

    Abstract: Glioblastoma (GBM) is the most aggressive form of primary brain tumor in adults [ ... ]. ...

    Abstract Glioblastoma (GBM) is the most aggressive form of primary brain tumor in adults [...].
    Language English
    Publishing date 2023-07-28
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers15153843
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Automated Parameterization of Coarse-Grained Polyethylenimine under a Martini Framework.

    Mahajan, Subhamoy / Tang, Tian

    Journal of chemical information and modeling

    2023  Volume 63, Issue 14, Page(s) 4328–4341

    Abstract: As a versatile polymer in many applications, synthesized polyethylenimine (PEI) is polydisperse with diverse branched structures that attain pH-dependent protonation states. Understanding the structure-function relationship of PEI is necessary for ... ...

    Abstract As a versatile polymer in many applications, synthesized polyethylenimine (PEI) is polydisperse with diverse branched structures that attain pH-dependent protonation states. Understanding the structure-function relationship of PEI is necessary for enhancing its efficacy in various applications. Coarse-grained (CG) simulations can be performed at length and time scales directly comparable with experimental data while maintaining the molecular perspective. However, manually developing CG forcefields for complex PEI structures is time-consuming and prone to human errors. This article presents a fully automated algorithm that can coarse-grain any branched architecture of PEI from its all-atom (AA) simulation trajectories and topology. The algorithm is demonstrated by coarse-graining a branched 2 kDa PEI, which can replicate the AA diffusion coefficient, radius of gyration, and end-to-end distance of the longest linear chain. Commercially available 25 and 2 kDa Millipore-Sigma PEIs are used for experimental validation. Specifically, branched PEI architectures are proposed, coarse-grained using the automated algorithm, and then simulated at different mass concentrations. The CG PEIs can reproduce existing experimental data on PEI's diffusion coefficient and Stokes-Einstein radius at infinite dilution as well as its intrinsic viscosity. This suggests a strategy where probable chemical structures of synthetic PEIs can be inferred computationally using the developed algorithm. The coarse-graining methodology presented here can also be extended to other polymers.
    MeSH term(s) Humans ; Polyethyleneimine/chemistry ; Computer Simulation ; Polymers
    Chemical Substances Polyethyleneimine (9002-98-6) ; Polymers
    Language English
    Publishing date 2023-07-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 190019-5
    ISSN 1549-960X ; 0095-2338
    ISSN (online) 1549-960X
    ISSN 0095-2338
    DOI 10.1021/acs.jcim.3c00103
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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    Jg. 1995 - 2021: Lesesall (1.OG)
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