Publications by authors named "Sachin"

A Ru(II)-catalyzed C(sp)-H trifluoromethylthiolation and thioarylation of indolines using bench-stable reagents have been explored. Diversely substituted indolines were functionalized at C7 position in good to excellent yields. Radical quenching, deuterium labeling, KIE, and reaction order determination experiments were performed to support the proposed reaction pathway.

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A sustainable photocatalytic approach has been established for trifluoroalkylation of isoquinoline via a three-component Minisci-type reaction using a green solvent. The polarity reversal radical cascade strategy renders the selective addition of an electrophilic CF radical to an olefin to forge a nucleophilic -centered radical. This multicomponent approach is operationally simple and environmentally benign with various functional groups, viz.

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Stress is derived from the Latin word "stringers" manifests as the body's response to various demands and pressures, affecting individuals' health and well-being. Therefore, it is of interest to evaluate stress levels in employed and unemployed women, recognizing the differential stress experiences in various life domains. A quantitative non-experimental comparative research design was employed, with data collected through structured questionnaires from 120 women in Visnagar, Gujarat.

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The complexation behavior of tri--amyl phosphate (TiAP) and tri--butyl phosphate (TBP) ligands with U(VI), Th(IV), and Nd(III) was investigated using density functional theory (DFT). Quantum chemical calculations yielded identical coordination geometries for TBP and TiAP complexes. Calculated complexation energies indicated a preferential extraction of U(VI) followed by Th(IV) over Nd(III), aligning with solvent extraction experiments conducted in the cross-current mode.

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A sustainable protocol for Ru(II)-catalyzed regioselective C(sp)-H methylation of indolines in the presence of ethanol has been explored. A wide array of substituted indolines were successfully methylated the developed protocol with good to excellent yields. Deuterium labeling experiments suggested the reversible nature of the C-H activation step.

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School health and nutrition programmes are effective strategies to address the health problems among school-going children and adolescents. We examined the policy environments, successes and bottlenecks associated with school health and nutrition programmes in Tanzania. We used the 'policy triangle framework' to examine 22 national and regional school health and nutrition policies and programmes in Tanzania.

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Article Synopsis
  • - Acute pyogenic meningitis is a serious medical condition primarily caused by bacteria, with common culprits including Streptococcus pneumoniae, Haemophilus influenzae, and Neisseria meningitidis.
  • - The text discusses a unique case of bacterial meningoencephalitis caused by Streptococcus porcinus, marking it as the first documented instance of this in medical literature.
  • - The patient received treatment with ceftriaxone along with supportive care to manage the condition.
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Article Synopsis
  • A novel method has been introduced for Co(III)-catalyzed C(sp)-H alkenylation, targeting less reactive -protected isoquinolones with 1,4-naphthoquinones.
  • The protocol is effective for a variety of isoquinolone substitutions, and studies suggest a five-membered cobaltacycle is formed as an intermediate, indicating a unique reaction pathway.
  • The scalability of the reaction has been demonstrated, and the resulting product was successfully used as a chemosensor to detect iron ions.
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Organic fluorescent molecules have received considerable attention owing to their various optoelectronic applications. Herein, we report the design and synthesis of two cholesterol-functionalized cyanostyrene-phenothiazine-based D-π-A systems that are emissive in both the solution and solid states. The newly synthesized cholesterol-appended phenothiazine-cyanostyrene diads and vary in the -alkylation of phenothiazine, respectively, with─ and─ chains.

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Co(III)-catalysed site-selective C8-allylation and vinylation of isoquinolones with allyl acetate and vinyl acetates has been accomplished. The oxo group of isoquinolone has been utilised as an inherent directing group. Based on preliminary mechanistic studies, a plausible mechanism for the developed reaction has also been delineated.

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In this paper, a multiuser medical image encryption algorithm is proposed. The proposed algorithm utilizes polar decomposition, which enables multiuser features in the proposed algorithm. A computer-generated hologram (CGH) improves the security of the proposed algorithm in the gyrator domain.

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The complexation behavior of carbamoylmethylphosphine oxide ligands (CMPO), a bifunctional phosphine oxide, and their substituted derivatives with Ce(III), Eu(III), Th(IV), U(VI), and Am(III) was probed at the density functional theory (DFT) level. The enhanced extraction of trivalent rare earth elements by the 2-diphenylphosphinylethyl derivative over the conventional CMPO ligand is identified due to the availability of an additional P═O donor group in the former. In addition, the orbital and dispersive interactions play a vital role in the preference of Th(IV) over U(VI) during extraction using CMPO ligands.

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Transition metal dichalcogenides (TMD) based heterostructures have gained significant attention lately because of their distinct physical properties and potential uses in electronics and optoelectronics. In the present work, the effects of twist on the structural, electronic, and optical properties (such as the static dielectric constant, refractive index, extinction coefficient, and absorption coefficient) of vertically stacked TMD heterostructures, namely MoSe/WSe, WS/WSe, MoSe/WS and MoS/WSe, have been systematically studied and a thorough comparison is done among these heterostructures. In addition, the absence of negative frequency in the phonon dispersion curve and a low formation energy confirm the structural and thermodynamical stability of all the proposed TMD heterostructures.

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Sensor-based decision tools provide a quick assessment of nutritional and physiological health status of crop, thereby enhancing the crop productivity. Therefore, a 2-year field study was undertaken with precision nutrient and irrigation management under system of crop intensification (SCI) to understand the applicability of sensor-based decision tools in improving the physiological performance, water productivity, and seed yield of soybean crop. The experiment consisted of three irrigation regimes [I: standard flood irrigation at 50% depletion of available soil moisture (DASM) (FI), I: sprinkler irrigation at 80% ET (crop evapo-transpiration) (Spr 80% ET), and I: sprinkler irrigation at 60% ET (Spr 60% ET)] assigned in main plots, with five precision nutrient management (PNM) practices{PNM-[SCI protocol], PNM-[RDF, recommended dose of fertilizer: basal dose incorporated (50% N, full dose of P and K)], PNM-[RDF: basal dose point placement (BDP) (50% N, full dose of P and K)], PNM-[75% RDF: BDP (50% N, full dose of P and K)] and PNM-[50% RDF: BDP (50% N, full P and K)]} assigned in sub-plots using a split-plot design with three replications.

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Background: The rapid development of coronavirus disease 2019 vaccines during the pandemic has left their long-term effects largely unknown. Instances of autoimmune and subacute thyroiditis showing features of autoimmune/inflammatory syndrome induced by adjuvants have been reported post-vaccination. This case report aims to highlight the autoimmune/inflammatory syndrome induced by adjuvants syndrome after coronavirus disease 2019 vaccination, drawing attention to a possible connection with thyroid dysfunction and urging for further thorough research.

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Climate change is altering ecological systems and poses a serious threat to human life. Climate change also seriously influences on livestock production by interfering with growth, reproduction, and production. Livestock, on the other hand, is blamed for being a significant contributor to climate change, emitting 8.

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The asymmetrical distribution of the cellular organelles inside the cell is maintained by a group of cell polarity proteins. The maintenance of polarity is one of the vital host defense mechanisms against pathogens, and the loss of it contributes to infection facilitation and cancer progression. Studies have suggested that infection of viruses and bacteria alters cell polarity.

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The conventional argument that extraction efficiency depends on the "basicity of the phosphoryl oxygen" is thoroughly examined in this study. The analysis involves studying the electronic structures of various ligands, such as phosphate, phosphonate, phosphinate, and phosphine oxide, as well as variations in their alkyl chain length, and their corresponding uranium complexes. The studies revealed a significant amount of destabilizing strain and steric repulsion for ligands having longer alkyl chains upon complexation.

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The effect of cyclic and aromatic substituents on the complexation behavior of phosphine oxide ligands with Am(III) and Eu(III) was investigated at density functional theory (DFT) and domain-based local pair natural orbital coupled-cluster (DLPNO-CC) levels. Combining DFT with accurate coupled cluster methods, we have evaluated the dispersion energy contributions to the complexation energies for trivalent Am and Eu complexes for the first time. Irrespective of the nature of substituents on the P atom, the electronic structure of the P═O group remains identical in all of the ligands.

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Synthetic dyes are considered toxic compounds and as such are not easily removed by conventional water treatment processes. This study demonstrated the synthesis of pure and manganese- (Mn), silver- (Ag), and iron- (Fe) doped zinc oxide (ZnO) nanoparticles via the wet chemical route. In particular, it investigated the batch adsorption studies and physiochemical properties of synthesized pure and doped ZnO materials for removing toxic congo red (CR) dye.

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Background: Inflammatory Breast Cancer (IBC) is a rare but aggressive subtype of breast cancer accounting for only 1% to 5% of cases but comprising 7% to 10% of breast cancer deaths. Diagnosis of IBC can be challenging which can lead to delays in diagnosis and treatment. We formed a multidisciplinary IBC program to address the unique challenges of diagnosing and treating patients with IBC.

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Introduction: Honey bee gut microbiota have an important role in host health, nutrition, host-symbiont interaction, and interaction behavior with the surrounding environment. Recent discoveries of strain-level variation, characteristics of protective and nutritional capabilities, and reports of eco-physiological significance to the microbial community have emphasized the importance of honey bee gut microbiota. Many regions of Asia and Africa are inhabited by the dwarf honey bee, .

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Aims: To measure and compare length, width and luminal diameters of semi-circular canals (SCC) on Multiplanar reformatted CT images in individuals without any features of vestibular dysfunction.

Materials And Methods: A prospective, cross sectional, observational study was conducted in a tertiary care hospital in October - November 2021. Multiplanar reformatted CT temporal bone images of 50 participants without features of vestibular dysfunction were used to measure the curved lengths, widths and luminal diameters of the three semi-circular canals.

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