Computational Investigation of Meso-Substituted, Heavy Atom-Free BODIPY Derivatives as Photosensitizers: Insights From TDDFT and Dynamics Studies.

This study investigates the structural and electronic properties of BODIPY (BDP) derivatives featuring meso-substituted donors arranged orthogonally, leveraging Time-Dependent Density Functional Theory (TD-DFT). These deriva-tives, selected based on experimental evidence of their quantum yield towards singlet oxygen generation, exhibit intricate excited-state dynamics, transitioning from fluorescence to intersystem crossing (ISC), thereby presenting a promising avenue for applications in photodynamic therapy. Emphasizing heavy-atom-free organic triplet photosensitizers, with BDP dyes highlighted for their exceptional adaptability in photophysical characteristics, our analysis contributes to a deeper understanding of the fundamental design principles governing such photosensitizers.

Contribution of veterinary sector to antimicrobial resistance in One Health compendium: an insight from available Indian evidence.

The application of antibiotics in the poultry and veterinary sectors is very common practice in India. Owing to the seriousness of antimicrobial resistance (AMR), the present study has illustrated the overall scenario of AMR in the poultry and veterinary sectors in India through an in-depth scoping review and key informant interview (KII). In the poultry sector, most of the studies reviewed have reported resistant bacteria isolated from chicken meat, eggs, cloacal swabs, and fecal samples, and only a few have reported the presence of resistant bacteria in and around the environment of poultry farms.

Selective synthesis of the missing tiara-like Ni, Ni and Ni thiolates by the C-S bond cleavage of bis(thioether) molecules with a DFT study.

A series of new bis(phenylthioether) and bis(benzylthioether) compounds (L1-L5) having hexahydropyrimidine, imidazolidine and dihydroperimidine backbones were synthesized. Instead of giving NHC complexes, these compounds undergo facile C-S bond cleavages upon treatment with Ni(II) salts to selectively give new toroidal Ni(II) thiolates: [Ni(SPh)] (1) and [Ni(SCHPh)] (5), and the known [Ni(SCHPh)] (8), as confirmed by single crystal X-ray diffraction studies. By-products such as RSSR (R = Ph and CHPh) and partially C-S bond cleaved starting compounds were isolated or detected as well from these reactions.

Existing Policies/Guidelines on the Environmental Dimension of Antimicrobial Resistance in India: An Insight into the Key Facets through Review and SWOT Analysis.

Background: Antimicrobial resistance (AMR) is a multidimensional phenomenon. The environment acts as a mixing pot of drug-resistant bacteria from many sources such as pharmaceutical, biomedical, veterinary, and agricultural sectors. In this study, we analysed the existing AMR-related policies/guidelines/legislations in India in the above domains and how the current practices are being guided by them.

Economic incentives drive the conversion of agriculture to aquaculture in the Indian Sundarbans: Livelihood and environmental implications of different aquaculture types.

Expansion of aquaculture in the Sundarbans Biosphere Reserve (SBR) is irreversibly replacing agricultural land and the drivers of this change are disputed. Based on in-depth interviews with 67 aquaculture farmers, this paper characterizes major aquaculture types in the SBR, their impacts, and identifies drivers of conversion from agricultural land. Aquaculture types included traditional, improved-traditional, modified-extensive, and semi-intensive systems.

Role of tide and lunar phases on the migration pattern of juvenile Hilsa shad (Tenualosa ilisha) within a meso-macrotidal estuary.

Tide and lunar phases often influence the behaviour and life cycle of different fishes, especially migratory species. In the Hooghly River estuary, Hilsa shad is an anadromous fish species that migrates from the adjacent sea to the estuary and rivers for spawning. After spawning, the juveniles remain in the rivers and estuary for few months then start their downstream migration towards the adjacent sea.

Dorsal Vertebral Enhancement Mimicking Sclerosing Metastases in Lung Cancer.

We report cases of vertebral body enhancement in patients with superior vena cava and brachiocephalic venous obstruction appearing as sclerotic metastases in post-contrast CT.A 58-year-old male presented with right lung mass compressing the superior vena cava.Sclerotic areas seen involving few vertebrae in post-contrast scans.

The clinical conundrum of a catecholamine secreting giant adrenal myelolipoma.

Adrenal myelolipomas are uncommon tumours of unknown aetiology. They arise from the adrenal cortex and comprise lipomatous and myeloid elements. They are considered to be functionally inert, and metabolic evaluation is not mandatory for them.

Rare Case of Metastatic Pleomorphic Liposarcoma of Thigh Presenting as Ewing's Sarcoma.

Liposarcoma is an uncommon group of tumors in the pediatric population. Of the various known subtypes,pleomorphic liposarcoma is the most infrequent in children.We present the case of a 7-year old child coming to the radiology department for evaluation of a right knee swelling.

CO fluxes from aquaculture ponds of a tropical wetland: Potential of multiple lime treatment in reduction of CO emission.

Partial pressure of CO in water [pCO(water)] and air-water CO flux were estimated in two aquaculture ponds (one received no lime treatment (NTP) and in the other lime treatment was performed (LTP) four times a year) every month throughout an annual cycle, situated in East Kolkata Wetlands, a Ramsar Site in eastern India. It was hypothesized that lime treatment can potentially lower the pCO(water) in aquaculture ponds and hence make these aquatic bodies sinks for CO. The results portrayed that NTP acted as a source of CO throughout the year (annual mean: 1929 ± 1397 μmol m h), whereas, LTP acted as CO sinks post lime addition (monthly mean ranged from -366 ± 16 to -449 ± 32 μmol m h), though the effect of lime addition was found to diminish by the next month and it acted as source for CO in the months when no lime treatment was done (LTP annual mean: 1010 ± 1617 μmol m h).

An index for discrimination of mangroves from non-mangroves using LANDSAT 8 OLI imagery.

Over the last few decades several vegetation indices were used to map Mangrove forest using satellite images. Difficulty still persists in discrimination of mangroves from non-mangrove vegetation, especially in areas where mangrove species are mixed with other vegetation types. In the present study we have attempted to develop an improved index, which utilizes the information from the Normalized Difference Vegetation Index (NDVI) and the Normalized Difference Water Index (NDWI) of Bhitarkanika mangrove forest of Odisha, India.