3,325 research outputs found
Some cytochemical observations on Zschokkella auerbachi (Weill) Chakravarty, 1940 (myxosporidia, protozoa)
No full textCytochemical observations have been made on the different developmental stages of Zschokkella auerbachi (Weill) Chakravarty, 1940, a coelozoic parasite in the gall bladder of Bufo melanostictus SCHNEIDER. Feulgen-positive substance (DNA) is found to be present in the nucleus in all stages of life cycle. Extra-nuclear DNA is also present in the spore coat, poplar capsule and poplar filaments. PAS-positive substances occur in varying concentration in all developmental stages and these remain, in lesser intensity, even after digestion with saliva. Toludine Blue metachromatic (gamma) substances are present only in spore coat and poplar capsuled, Alcian Blue positive substances are localised in all stages with the strongest inensity in spores. Bromo-phenol Blue positive substances are localised in all stages with the strongest inensity in spore. Bound lipids are deposited in all stages in varying degrees of concentration
Some cytochemical observations on Zschokkella auerbachi (Weill) Chakravarty, 1940 (myxosporidia, protozoa)
No full textCytochemical observations have been made on the different developmental stages of Zschokkella auerbachi (Weill) Chakravarty, 1940, a coelozoic parasite in the gall bladder of Bufo melanostictus SCHNEIDER. Feulgen-positive substance (DNA) is found to be present in the nucleus in all stages of life cycle. Extra-nuclear DNA is also present in the spore coat, poplar capsule and poplar filaments. PAS-positive substances occur in varying concentration in all developmental stages and these remain, in lesser intensity, even after digestion with saliva. Toludine Blue metachromatic (gamma) substances are present only in spore coat and poplar capsuled, Alcian Blue positive substances are localised in all stages with the strongest inensity in spores. Bromo-phenol Blue positive substances are localised in all stages with the strongest inensity in spore. Bound lipids are deposited in all stages in varying degrees of concentration
Review of "Fictions of Consent: Slavery, Servitude, and Free Service in Early Modern England" by Ray Bossert
No full textChakravarty Urvashi. Fictions of Consent: Slavery, Servitude, and Free Service in Early Modern England. Philadelphia: University of Pennsylvania Press, 2022. xiv + 295 pp. $65. Review by Ray Bossert, Independent Schola
JDE 2019 Nepal Paper: Chakravarty, S., M. Lundberg, P. Nikolov and J. Zenker. 2019. Vocational training programs and youth labor market outcomes: Evidence from Nepal. Journal of Development Economics.
No full textChakravarty, S., M. Lundberg, P. Nikolov and J. Zenker. 2019. Vocational training programs and youth labor market outcomes: Evidence from Nepal. Journal of Development Economics. https://doi.org/10.1016/j.jdeveco.2018.09.00
JDE 2019 Nepal Paper: Chakravarty, S., M. Lundberg, P. Nikolov and J. Zenker. 2019. Vocational training programs and youth labor market outcomes: Evidence from Nepal. Journal of Development Economics.
No full textChakravarty, S., M. Lundberg, P. Nikolov and J. Zenker. 2019. Vocational training programs and youth labor market outcomes: Evidence from Nepal. Journal of Development Economics. https://doi.org/10.1016/j.jdeveco.2018.09.00
Inverse Scattering Transform for 3-level coupled Maxwell-Bloch equations with inhomogeneous broadening
No full textIn this paper we study the propagation of optical pulses in an optical medium with coherent three level atomic transitions. The interaction between the pulses and the medium is described by the coupled
Maxwell–Bloch equations, which we investigate by applying the method of inverse scattering transform. The details of the inverse scattering method and the non-trivial evolution of the associated scattering data are discussed. The one- and two-soliton solutions, polarization shifts due to two-soliton interactions, and the explicit form of the transmission matrix associated with pure soliton solutions are also derived
Anatomical leg length discrepancy in children: Can it be accurately determined using 3-D motion capturing?
No full textsj-pdf-1-jcb-10.1177_0271678X211035625 - Supplemental material for Preclinical <i>in vivo</i> longitudinal assessment of KG207-M as a disease-modifying Alzheimer’s disease therapeutic
No full textSupplemental material, sj-pdf-1-jcb-10.1177_0271678X211035625 for Preclinical in vivo longitudinal assessment of KG207-M as a disease-modifying Alzheimer’s disease therapeutic by Min Su Kang, Monica Shin, Julie Ottoy, Arturo Aliaga Aliaga, Sulantha Mathotaarachchi, Kely Quispialaya, Tharick A Pascoal, D Louis Collins, M. Mallar Chakravarty, Axel Mathieu, Åsa Sandelius, Kaj Blennow, Henrik Zetterberg, Gassan Massarweh, Jean-Paul Soucy, A Claudio Cuello, Serge Gauthier, Michael Waterston, Nathan Yoganathan, Etienne Lessard, Arsalan Haqqani, Kerry Rennie, Danica Stanimirovic, Balu Chakravarthy and Pedro Rosa-Neto in Journal of Cerebral Blood Flow & Metabolism</p
A lung organotypic coculture reveals a role for tfeb-lysosomal axis in the survival of disseminated dormant cancer cells
No full text(1) Background: metastatic relapse following a prolonged period of disease-free survival is a common cause of mortality for many cancer patients. Disseminated dormant cancer cells (DDCCs) lie below the radar before waking up years, or even decades, after the removal of the primary tumor. This implies that they are able to survive in a latent state in a foreign environment for an extended period of time supported by intrinsic and extrinsic factors still to be elucidated. (2) Methods: we employed a coculture of DDCCs with lung epithelial cells together with RNA sequencing analysis to understand the overlap in gene transcription between in vivo and cocultured DDCCs. (3) Results: we found a significant overlap between the processes activated in DDCCs from lungs and in the coculture, as well as in alveolar type I cells in vivo and in coculture. We identified the transcription factor EB (TFEB)-lysosomal axis as a relevant process activated in DDCCs upon dissemination to the lung and confirmed the results in our lung coculture. Interestingly, breast cancer patients with a higher expression of TFEB targets show increased likelihood of developing relapses. (4) Conclusions: we propose that lysosomal accumulation following TFEB activation is an important feature of breast cancer DDCCs that might be exploited for future therapeutic interventions
Two-dimensional analysis of a 16-m m CO2 downstream-mixing gasdynamic laser
No full textA theoretical analysis of a 16-\mu m downstream-mixing gasdynamic laser, where a cold , stream is mixed with a vibrationally excited stream, tangentially downstream of the nozzle exit, is presented. The flowfield is analyzed numerically using 2-dimensional, unsteady, laminar, and viscous flow modeling, including the appropriate finite-rate vibrational kinetic equations. The effect of variation of different flowfield parameters on 16-mm small-signal gain is studied, and results are discussed in detail. The anal. shows that the presence of gas is detrimental to small-signal gain. The velocity ratio 1:1 between the , , and mixing streams is the best choice rendering local small-signal gain as high as 21.75 and corresponding av. small-signal gain of 16.7 for reservoir temp. of 2000 K. These high values of small-signal gain clearly underscore the high potential which a downstream-mixing scheme has over the conventional methods for a 16-\mu m laser source
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