Fotoluminescencija na sobnoj temperaturi kemijski taloženih (Cd-Zn)S: CdCl2, Ho/Tb tankih slojeva

(Cd-Zn)S: CdCl2, Ho/Tb films were prepared by chemical deposition method on glass and Al substrates at room temperature (RT). The films were characterized by SEM, XRD, optical absorption/specular reflectance and photoluminescence (PL) emission spectral studies. SEM studies show the predominance of layered growth along with cluster of particles. XRD studies show crystalline nature of films with maximum intensity corresponding to the (111) plane of CdS cubic phase. Formation of solid solution of the mixed base is also observed. Diffraction lines corresponding to the impurities indicate the substitution of impurities in the lattice. Optical absorption spectra show absorption transitions within the energy levels of impurities. PL emission is most intense in films prepared on Al substrate, which may be due to greater thickness and better crystallinity of such films. PL emission due to transitions within Ho3+ as well as Tb3+ levels are observed.Tanke slojeve (Cd-Zn)S: CdCl2, Ho/Tb smo pripremali kemijskim taloženjem na staklenu i Al podlogu na sobnoj temperaturi. Te smo slojeve ispitali mjerenjem SEM, XRD, optičke apsorpcije i spektralne odraznosti te fotoluminescentnih emisijskih spectara. Proučavanje SEM pokazuju prevladavanje slojevitog rasta duž nakupina čestica. Mjerenja XRD pokazuju kristaliničnu strukturu slojeva s najjačim vrhom koji odgovara ravnini (111) kubične faze CdS. Opaža se i tvorba čvrste otopine od miješane osnove. Difrakcijske linije od nečistoća ukazuju na zamjene nečistoća u rešetci. Optički apsorpcijski spektri pokazuju apsorpcijske prijelaze među energijskim stanjima nečistoća. Fotoluminescentna emisija je najjača iz slojeva na Al podlozi što je možda posljedica veće debljine i kristaliničnosti tih slojeva. Opažaju se fotoluminescentni prijelazi među stanjima Ho3+ i Tb3+

Fotoluminescencija na sobnoj temperaturi kemijski taloženih (Cd-Zn)S: CdCl2, Ho/Tb tankih slojeva

(Cd-Zn)S: CdCl2, Ho/Tb films were prepared by chemical deposition method on glass and Al substrates at room temperature (RT). The films were characterized by SEM, XRD, optical absorption/specular reflectance and photoluminescence (PL) emission spectral studies. SEM studies show the predominance of layered growth along with cluster of particles. XRD studies show crystalline nature of films with maximum intensity corresponding to the (111) plane of CdS cubic phase. Formation of solid solution of the mixed base is also observed. Diffraction lines corresponding to the impurities indicate the substitution of impurities in the lattice. Optical absorption spectra show absorption transitions within the energy levels of impurities. PL emission is most intense in films prepared on Al substrate, which may be due to greater thickness and better crystallinity of such films. PL emission due to transitions within Ho3+ as well as Tb3+ levels are observed.Tanke slojeve (Cd-Zn)S: CdCl2, Ho/Tb smo pripremali kemijskim taloženjem na staklenu i Al podlogu na sobnoj temperaturi. Te smo slojeve ispitali mjerenjem SEM, XRD, optičke apsorpcije i spektralne odraznosti te fotoluminescentnih emisijskih spectara. Proučavanje SEM pokazuju prevladavanje slojevitog rasta duž nakupina čestica. Mjerenja XRD pokazuju kristaliničnu strukturu slojeva s najjačim vrhom koji odgovara ravnini (111) kubične faze CdS. Opaža se i tvorba čvrste otopine od miješane osnove. Difrakcijske linije od nečistoća ukazuju na zamjene nečistoća u rešetci. Optički apsorpcijski spektri pokazuju apsorpcijske prijelaze među energijskim stanjima nečistoća. Fotoluminescentna emisija je najjača iz slojeva na Al podlozi što je možda posljedica veće debljine i kristaliničnosti tih slojeva. Opažaju se fotoluminescentni prijelazi među stanjima Ho3+ i Tb3+

Proceedings and Recommendations of the Training on Tropical Finfish and Shellfish Stock Assessment cum Brainstorming Session on Indian Marine Capture Fisheries Research and the Way Forward

A training on Tropical Finfish Stock Assessment was conducted by the Finfish Fisheries Division (FFD), ICARCMFRI, for Fisheries Resource Management scientists at ICAR-CMFRI Headquarters, Kochi during 16-27 August 2022, in hybrid mode. The program was inaugurated by Dr. A. Gopalakrishnan, Director, ICAR-CMFRI on 16th August 2022, and was attended by Dr. Sanjay Pandey, Asst. Commissioner (Fisheries), Govt. of India, Heads of Divisions at ICAR-CMFRI Headquarters and scientists of Finfish and Shellfish Fisheries Divisions of ICAR-CMFRI. In the second phase, a training - workshop on 'Stock assessment of shellfish species' was organised from 9 -17 November 2022 by the Shellfish Fisheries Division (SFD), with focus on specific methods for shellfish species. Scientists from the Fishery Resources Assessment, Economics and Extension Division (FRAEED), FFD and SFD were participants and resource persons in the respective programme

XVI Agricultural Science Congress 2023: Transformation of Agri-Food Systems for Achieving Sustainable Development Goals

The XVI Agricultural Science Congress being jointly organized by the National Academy of Agricultural Sciences (NAAS) and the Indian Council of Agricultural Research (ICAR) during 10-13 October 2023, at hotel Le Meridien, Kochi, is a mega event echoing the theme “Transformation of Agri-Food Systems for achieving Sustainable Development Goals”. ICAR-Central Marine Fisheries Research Institute takes great pride in hosting the XVI ASC, which will be the perfect point of convergence of academicians, researchers, students, farmers, fishers, traders, entrepreneurs, and other stakeholders involved in agri-production systems that ensure food and nutritional security for a burgeoning population. With impeding challenges like growing urbanization, increasing unemployment, growing population, increasing food demands, degradation of natural resources through human interference, climate change impacts and natural calamities, the challenges ahead for India to achieve the Sustainable Development Goals (SDGs) set out by the United Nations are many. The XVI ASC will provide an interface for dissemination of useful information across all sectors of stakeholders invested in developing India’s agri-food systems, not only to meet the SDGs, but also to ensure a stable structure on par with agri-food systems around the world. It is an honour to present this Book of Abstracts which is a compilation of a total of 668 abstracts that convey the results of R&D programs being done in India. The abstracts have been categorized under 10 major Themes – 1. Ensuring Food & Nutritional Security: Production, Consumption and Value addition; 2. Climate Action for Sustainable Agri-Food Systems; 3. Frontier Science and emerging Genetic Technologies: Genome, Breeding, Gene Editing; 4. Livestock-based Transformation of Food Systems; 5. Horticulture-based Transformation of Food Systems; 6. Aquaculture & Fisheries-based Transformation of Food Systems; 7. Nature-based Solutions for Sustainable AgriFood Systems; 8. Next Generation Technologies: Digital Agriculture, Precision Farming and AI-based Systems; 9. Policies and Institutions for Transforming Agri-Food Systems; 10. International Partnership for Research, Education and Development. This Book of Abstracts sets the stage for the mega event itself, which will see a flow of knowledge emanating from a zeal to transform and push India’s Agri-Food Systems to perform par excellence and achieve not only the SDGs of the UN but also to rise as a world leader in the sector. I thank and congratulate all the participants who have submitted abstracts for this mega event, and I also applaud the team that has strived hard to publish this Book of Abstracts ahead of the event. I wish all the delegates and participants a very vibrant and memorable time at the XVI ASC

SARS-CoV-2 B.1.617.2 Delta variant replication and immune evasion

Abstract: The B.1.617.2 (Delta) variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first identified in the state of Maharashtra in late 2020 and spread throughout India, outcompeting pre-existing lineages including B.1.617.1 (Kappa) and B.1.1.7 (Alpha)1. In vitro, B.1.617.2 is sixfold less sensitive to serum neutralizing antibodies from recovered individuals, and eightfold less sensitive to vaccine-elicited antibodies, compared with wild-type Wuhan-1 bearing D614G. Serum neutralizing titres against B.1.617.2 were lower in ChAdOx1 vaccinees than in BNT162b2 vaccinees. B.1.617.2 spike pseudotyped viruses exhibited compromised sensitivity to monoclonal antibodies to the receptor-binding domain and the amino-terminal domain. B.1.617.2 demonstrated higher replication efficiency than B.1.1.7 in both airway organoid and human airway epithelial systems, associated with B.1.617.2 spike being in a predominantly cleaved state compared with B.1.1.7 spike. The B.1.617.2 spike protein was able to mediate highly efficient syncytium formation that was less sensitive to inhibition by neutralizing antibody, compared with that of wild-type spike. We also observed that B.1.617.2 had higher replication and spike-mediated entry than B.1.617.1, potentially explaining the B.1.617.2 dominance. In an analysis of more than 130 SARS-CoV-2-infected health care workers across three centres in India during a period of mixed lineage circulation, we observed reduced ChAdOx1 vaccine effectiveness against B.1.617.2 relative to non-B.1.617.2, with the caveat of possible residual confounding. Compromised vaccine efficacy against the highly fit and immune-evasive B.1.617.2 Delta variant warrants continued infection control measures in the post-vaccination era

A guide to being the elephant in the room : a study on the residual behaviours stemming from bodyweight stigma

Body weight and its accompanying stigma in society has always been a personal point of contention for me. From a very young age, I was hyper-aware of the fact that traversing this world in a bigger body would result in lower social capital, hyper visibility and sexual invisibility. In today’s society, albeit the many activistic and effective initiatives in place to combat body-weight biases, the internal mental struggle that comes along with inhabiting a body that society does not seem to accommodate while trying to undo one’s internalised paranoia, is often overlooked. In publicly displaying signs of fatness every day, perceived stereotypes placed upon fat people are reinforced and thus bring about a sense of shame from within. As a result, residual behaviours or ‘by-products of shame’ are performed in an effort to lessen the effect of possessing such mass. My project aims to create a narrative experience for viewers to view the often constricting and debilitating mental processes behind these behaviours. I aim to do so by creating a personal code of conduct titled ‘A Guide To Being The Elephant In The Room’ consisting of three sections each corresponding to a specific ‘by-product of shame’. Brimming with instructional illustrations and texts, this mammoth manual will outline the seemingly absurd sequence of rules that govern my thoughts and actions. The content will work in tandem with deliberate editorial design choices such that the process of flipping through and reading the book in itself will convey the intended ‘by-products’ in each section.Bachelor of Fine Arts in Visual Communicatio