Dynamics of Hot QCD Matter -- Current Status and Developments

The discovery and characterization of hot and dense QCD matter, known as Quark Gluon Plasma (QGP), remains the most international collaborative effort and synergy between theorists and experimentalists in modern nuclear physics to date. The experimentalists around the world not only collect an unprecedented amount of data in heavy-ion collisions, at Relativistic Heavy Ion Collider (RHIC), at Brookhaven National Laboratory (BNL) in New York, USA, and the Large Hadron Collider (LHC), at CERN in Geneva, Switzerland but also analyze these data to unravel the mystery of this new phase of matter that filled a few microseconds old universe, just after the Big Bang. In the meantime, advancements in theoretical works and computing capability extend our wisdom about the hot-dense QCD matter and its dynamics through mathematical equations. The exchange of ideas between experimentalists and theoreticians is crucial for the progress of our knowledge. The motivation of this first conference named "HOT QCD Matter 2022" is to bring the community together to have a discourse on this topic. In this article, there are 36 sections discussing various topics in the field of relativistic heavy-ion collisions and related phenomena that cover a snapshot of the current experimental observations and theoretical progress. This article begins with the theoretical overview of relativistic spin-hydrodynamics in the presence of the external magnetic field, followed by the Lattice QCD results on heavy quarks in QGP, and finally, it ends with an overview of experiment results.Comment: Compilation of the contributions (148 pages) as presented in the `Hot QCD Matter 2022 conference', held from May 12 to 14, 2022, jointly organized by IIT Goa & Goa University, Goa, Indi

Nations within a nation: variations in epidemiological transition across the states of India, 1990–2016 in the Global Burden of Disease Study

18% of the world's population lives in India, and many states of India have populations similar to those of large countries. Action to effectively improve population health in India requires availability of reliable and comprehensive state-level estimates of disease burden and risk factors over time. Such comprehensive estimates have not been available so far for all major diseases and risk factors. Thus, we aimed to estimate the disease burden and risk factors in every state of India as part of the Global Burden of Disease (GBD) Study 2016

Water soluble mixed-ligand oxovanadium(IV) complexes of acetylacetone and aldimine ligands

527-529Water soluble mixed-ligand oxovanadium(IV) complexes of sulphonated salicylaldimine Iigands of a-amino acids Na2HL.H2O[1, R=H, CH3, CH(CH3)2 and CH2Ph] and acetylacetone of the. formula Na2[VO(L)(acac)].3H2O have been synthesized and characterized by IR, UV/VIS, EPR, magnetic moments and redox behaviour. The coordination sphere of the complexes are of the type VO(ONO)(OO), where O atoms are phenolic, carboxylic, ketonic and enolic type and N is of azomethine type. The complexes are one electron paramagnetic and show 1:2 electrolytic conductivity. The complexes display irreversible one electron oxidation peaks in H2O in·the range 0.46-0.55 V vs SCE

Water soluble mixed-ligand oxovanadium(IV) complexes of acetylacetone and aldimine ligands

527-529Water soluble mixed-ligand oxovanadium(IV) complexes of sulphonated salicylaldimine Iigands of a-amino acids Na2HL.H2O[1, R=H, CH3, CH(CH3)2 and CH2Ph] and acetylacetone of the. formula Na2[VO(L)(acac)].3H2O have been synthesized and characterized by IR, UV/VIS, EPR, magnetic moments and redox behaviour. The coordination sphere of the complexes are of the type VO(ONO)(OO), where O atoms are phenolic, carboxylic, ketonic and enolic type and N is of azomethine type. The complexes are one electron paramagnetic and show 1:2 electrolytic conductivity. The complexes display irreversible one electron oxidation peaks in H2O in·the range 0.46-0.55 V vs SCE

Models for photosynthetic reaction center: Synthesis, structure and electrochemical properties of a cofacial di-palladium bisporphyrin

1436-1442A novel cofacial dipalladium(II) bisporphyrin (Pd2DEP) of Pacman-type is reported herein. Structural characterization suggests very strong π-π interactions between two planar porphyrins that closely mimic the spatial orientation observed in the so called ‘special pair’. The electrochemical response reveals four consecutive ring-centered oxidations in CH2Cl2, indicative of strong through-space electronic communication between two redox-active Pd-porphyrins. At 0.66V, one Pd-porphyrin unit is oxidized to generate a radical cation at a potential much lower than that of monomeric unit (PdOEP), owing to the increased electron density in the bisporphyrin scaffold. However, due to the presence of strong inter-macrocyclic interactions, the second Pd-porphyrin is then oxidized at a significantly higher potential (0.97 V) to produce radical cation species. In the bis(radical cation) state, electrostatic repulsion induces change in the geometry due to flexible spacer which eventually forces an increase in the porphyrin-porphyrin distance. As a result, the second oxidation of both the porphyrin radical cations is observed at 1.42 V as a single reversible two-electron process. The overall oxidation process thus demonstrates strong electrostatic communication between the two macrocycles in Pd2DEP and also provides a means of switching, in a clapping motion, from a closed to an open Pacman structure under electrochemical stimulus

Synthesis, structure and properties of a high-spin Fe(III) porphyrin with non-equivalent axial ligands: Implications for the hemoproteins

432-437The synthesis and X-ray structure of a six-coordinate (porphinato)iron(III) derivative having the mixed-axial ligation of perchlorate and dimethylformamide with no displacement of metal in a nonplanar porphyrinic environment is reported for the first time. The Fe-Np (Np: porphinato nitrogen) distances which range from 2.044(2) to 2.070(2) Å, leaves little doubt that the Fe(III) ion is in high-spin state which is also supported by its characteristic axial EPR spectrum at low temperature. The axial Fe-O(DMF) distance is 2.050(2) Å which is ~0.6 Å shorter than the Fe-OClO3 distance of the complex. In the complex, iron sits in the plane of four porphyrinic nitrogens even when metal coordinates to two non-equivalent axial ligands. The present study suggests that the displacement of iron in proteins is the consequence of non-equivalent axial coordination as well as the protein induced deformations at heme

Chemistry of hydrazonato oxovanadium(V) alkoxides derived from dihydric/monohydric alcohols

The reaction of bis(acetylacetonato)oxovanadium(IV) with benzoylhydrazones of benzoylacetone and salicylaldehyde - H<SUB>2</SUB>babh and H<SUP>2</SUP>sabh, respectively - with ethane-1,2-diol (H<SUB>2</SUB>ed) in acetone solution has afforded the alkoxides V<SUP>V</SUP>O(babh)(Hed) and V<SUP>V</SUP>O(sabh)(Hed) in which the Hed<SUP>-</SUP> ligand is chelated both in the solid state and in solution. In methanol solution (no H<SUB>2</SUB>ed added) five-coordinated V<SUP>v</SUP>O(babh)(OMe) and six-coordinated V<SUP>V</SUP>O(sabh)(OMe)(OHMe) are formed. Aerial oxygen is the oxidant (V<SUP>IV</SUP> &#8594; V<SUP>V</SUP>) in the synthesis. The X-ray structures of VO(babh)(Hed) and VO(sabh)(OMe)(OHMe) are reported. In the VO<SUB>5</SUB>N coordination sphere the alcohol oxygen lies trans to the oxo oxygen. The general V---O bond length order is oxo &lt; alkoxidic &lt; phenoxidic &lt; enolato &lt; alcoholic. The complexes are mononuclear but intermolecular O---H&#183;&#183;&#183;N hydrogen bonding afford dimers. The Hed<SUP>-</SUP> complexes represent authentic examples of rare oxovanadium species incorporating ethane-1,2-diol chelation uncomplicated by alkoxide bridging. The complexes have low V(V)/V(IV) reduction potentials ( E &#189;, -0.3 to -0.2 V) corresponding to stabilization of the pentavalent state. The methylene protons of Hed<SUP>-</SUP> in the complexes are inequivalent in solution (<SUP>1</SUP>H NMR). Crystal data: VO(babh)(Hed): monoclinic, space group P2<SUB>1</SUB>/c, A = 11.260(6), B = 7.672(3), C = 21.072(8) &#197;, &#946; = 91.95(4)&#176;, V = 1820(1.4) &#197;<SUP>3</SUP>, Z = 4, R<SUB>w</SUB> = 4.67%; VO(sabh)(OMe)(OHMe): monoclinic, space group P2<SUB>1</SUB>/c, A = 8.170(4), B = 16.984(10), C = 12.242(7) &#197;, &#946; = 104.24(4)&#176;, V = 1646(1.6) &#197;<SUP>3</SUP>, Z = 4, R = 3.64%, R<SUB>w</SUB> = 4.71%