1,447 research outputs found
Emergent chiroptical properties in supramolecular and plasmonic assemblies
No full textThis tutorial provides a comprehensive description of the origin of chiroptical properties of supramolecular and plasmonic assemblies in the UV-visible region of the electromagnetic spectrum. The photophysical concepts essential for understanding chiroptical signatures are presented in the first section. Just as the oscillator strength (a positive quantity) is related to absorption, the rotational strength (either a positive or a negative quantity) defines the emergence of chiroptical signatures in molecular/plasmonic systems. In supramolecular systems, induced circular dichroism (ICD) originates through the off-resonance coupling of transition dipoles in chiral inclusion complexes, while exciton coupled circular dichroism (ECD) originates through the on-resonance exciton coupling of transition dipoles in chiral assemblies resulting in the formation of a bisignated CD signal. In bisignated ECD spectra, the sign of the couplet is determined not only by the handedness of chiral supramolecular assemblies, but also by the sign of the interaction energy between transition dipoles. Plasmonic chirality is briefly addressed in the last section, focusing on inherent chirality, induced chirality, and surface plasmon-coupled circular dichroism (SP-CD). The oscillator strength is of the order of 1 in molecular systems, while it becomes very large (104-105) in plasmonic systems due to the collective plasmonic excitations, resulting in intense CD signals, which can be exploited for the design of plasmonic metamaterial platforms for chiral sensing applications. This journal i
Henosepilachna circellaris
No full textHenosepilachna circellaris (Weise) Epilachna circellaris Weise, 1908: 216 (BMNH). Henosepilachna circellaris: Jadwiszczak & Wegrzynowicz, 2003: 141. Jadwiszczak & Wegrzynowicz (2003) listed H. circellaris as distributed in India in the world catalogue of Epilachninae, though Weise (1908) listed ‘Tharrawaddy’ (now in Myanmar) as its type locality. In Poorani’s (2004) updated online checklist of the Indian Subcontinent fauna, the author of H. circellaris was wrongly cited as Korschefsky and it was also wrongly mentioned as present in India (Karnataka). Distribution: Myanmar (Tharrawaddy).Published as part of Poorani, J., Booth, R. G., Gracy, R. Gandhi, Anuradha, C., Thanigairaj, R. & Swathi, R. S., 2021, Immature stages, host plants and natural enemies of Henosepilachna implicata (Mulsant) (Coleoptera: Coccinellidae) with DNA sequence data and a new synonym and notes on some Indian species of Epilachnini, pp. 533-546 in Zootaxa 4970 (3) on pages 543-544, DOI: 10.11646/zootaxa.4970.3.5, http://zenodo.org/record/476683
FIGURE 3 in Immature stages, host plants and natural enemies of Henosepilachna implicata (Mulsant) (Coleoptera: Coccinellidae) with DNA sequence data and a new synonym and notes on some Indian species of Epilachnini
No full textFIGURE 3. Henosepilachna implicata, variants collected from Trichy, Tamil Nadu.Published as part of Poorani, J., Booth, R. G., Gracy, R. Gandhi, Anuradha, C., Thanigairaj, R. & Swathi, R. S., 2021, Immature stages, host plants and natural enemies of Henosepilachna implicata (Mulsant) (Coleoptera: Coccinellidae) with DNA sequence data and a new synonym and notes on some Indian species of Epilachnini, pp. 533-546 in Zootaxa 4970 (3) on page 538, DOI: 10.11646/zootaxa.4970.3.5, http://zenodo.org/record/476683
Purification and stability studies on the major protein from Guduchi stem.
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Sex trafficking of girls and women : Evidence from Anantapur district, Andhra Pradesh
No full textA crucial gap in the trafficking literature from India is the dearth of primary data and micro studies that could be used for vulnerability mapping of the source areas and addressing the identified risk factors. The present paper is a small attempt to contribute to plugging the gap in the context of Andhra Pradesh, identified as a hot spot in the trafficking literature. This paper is based on case studies of 78 women who had been trafficked from their places of origin in Anantapur district in Andhra Pradesh to metropolitan cities across India and who have since returned to their homes. The paper attempted to identify the individual and family circumstances that contribute to the causes of trafficking, to highlight in particular the gendered vulnerabilities that set these women up for trafficking, and to capture the process of the trafficking experience. The findings of the study are located in the dynamic interplay of the social structural context and specificities of the district that contribute to causes of trafficking and the individual circumstances and agency of the women. The case studies reported in this paper are a pointer to the compelling urgency of interventions that will go beyond the forced / voluntary divide in trafficking and sex work.Andhra Pradesh, India, trafficking
Matching in power graphs of finite groups
No full textFunding: The author Swathi V V acknowledges the support of Council of Scientific and Industrial Research, India (CSIR) (Grant No-09/874(0029)/2018-EMR-I), and DST, Government of India, ‘FIST’ (No.SR/FST /MS-I/2019/40).The power graph P(G) of a finite group G is the undirected simple graph with vertex set G, where two elements are adjacent if one is a power of the other. In this paper, the matching numbers of power graphs of finite groups are investigated. We give upper and lower bounds, and conditions for the power graph of a group to possess a perfect matching. We give a formula for the matching number for any finite nilpotent group. In addition, using some elementary number theory, we show that the matching number of the enhanced power graph Pe(G) of G (in which two elements are adjacent if both are powers of a common element) is equal to that of the power graph of G.Peer reviewe
Ntf3 acts downstream of Sip1 in cortical postmitotic neurons to control progenitor cell fate through feedback signaling
No full textCortical progenitors undergo progressive fate restriction, thereby sequentially producing the different layers of the neocortex. However, how these progenitors precisely change their fate remains highly debatable. We have previously shown the existence of cortical feedback mechanisms wherein postmitotic neurons signal back to the progenitors and promote a switch from neurogenesis to gliogenesis. We showed that Sip1 (Zeb2), a transcriptional repressor, controls this feedback signaling. A similar mechanism was also suggested to control neuronal cell type specification; however, the underlying mechanism was not identified. Here, we provide direct evidence that in the developing mouse neocortex, Ntf3, a Sip1 target neurotrophin, acts as a feedback signal between postmitotic neurons and progenitors, promoting both apical progenitor (AP) to basal progenitor (BP) and deep layer (DL) to upper layer (UL) cell fate switches. We show that specific overexpression of Ntf3 in neocortical neurons promotes an overproduction of BP at the expense of AP. This shift is followed by a decrease in DL and an increase in UL neuronal production. Loss of Ntf3, by contrast, causes an increase in layer VI neurons but does not rescue the Sip1 mutant phenotype, implying that other parallel pathways also control the timing of progenitor cell fate switch
2018 ASHA Research Symposium: Swathi Kiran, Neuroplasticity and Language Recovery
No full textThis presentation video is from the Research Symposium at the 2018 annual convention of the American Speech-Language-Hearing Association held in Boston, MA. The abstract for the accompanying article is below. This article is part of the JSLHR Forum: Advances in Neuroplasticity Research on Language Recovery in Aphasia.Purpose: Despite a tremendous amount of research in this topic, the precise neural mechanisms underlying language recovery remain unclear. Much of the evidence suggests that activation of remaining left-hemisphere tissue, including perilesional areas, is linked to the best treatment outcomes, yet recruitment of the right hemisphere for various language tasks has also been linked to favorable behavioral outcomes. In this review article, we propose a framework of language recovery that incorporates a network-based view of the brain regions involved in recovery.Method: We review evidence from the extant literature and work from our own laboratory to identify findings consistent with our proposed framework and identify gaps in our current knowledge.Results: Expanding on Heiss and Thiel’s (2006) hierarchy of language recovery, we identify 4 emerging themes: (a) Several bilateral regions constitute a network engaged in language recovery; (b) spared left-hemisphere regions are important components of the network engaged in language recovery; (c) as damage increases in the left hemisphere, activation expands to the right hemisphere and domain-general regions; and (d) patients with efficient, control-like network topology show greater improvement than paients with abnormal topology. We propose a mechanistic model of language recovery that accounts for individual differences in behavior, network topology, and treatment responsiveness.Conclusion: Continued work in this topic will lead us to a better understanding of the mechanisms underlying language recovery, biomarkers that influence recovery, and, consequently, more personalized treatment options for individual patients.Kiran, S., Meier, E. L., & Johnson, J. P. (2019). Neuroplasticity in aphasia: A proposed framework of language recovery. Journal of Speech, Language, and Hearing Research, 62(11), 3973–3985. https://doi.org/10.1044/2019_JSLHR-L-RSNP-19-0054</div
Screening of pediocin PA-1 producing lactic acid bacteria and their characterization by RAPD
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Studies On the Neutraceuticals of Minor Compounds of Extracted Oil From Roasted Wheat Germ and Wheat Bran.
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
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