Preferential solvation of 4-(4-nitrophenylazo) aniline in alcohol-dioxane binary solvent mixture

Electronic spectroscopy is a suitable method for studying solvation. It has been observed that maximum energy of electronic transition of various solutes depends to a great extent on the local environment around the solute. In binary solvent, the composition of liquid mixture around the solute (solvation shell) is different from that of the bulk. The inhomogenecity created by the solute molecule in the solvation shell is known as preferential solvation. Owing to the applicability of various azo dyes and the importance to study solute-solvent interaction, herein we have made an attempt to study the preferential solvation of 4-(4-nitrophenylazo) aniline (NPA) in binary solvent mixtures of alcohol with dioxane. With increase in solvent polarity, the maximum spectroscopic absorption of NPA experience a red shift (bathochromic shift) indicating a positive solvatochromism. These facts can be explained in terms of the greater stabilization of the excited state compared to the ground state by greater solvating power of polar solvents through specific (hydrogen bonding) and nonspecific (dipole-dipole) interaction, which reduces the energy difference between ground and excited state intern reducing the maximum energy of absorption. In all the case, the molecule of solute is preferentially solvated by alcohols over dioxane due to (i) hydrogen bonding (ii) dipole- dipole interaction and (iii) apolar/hydrophobic interaction In some cases, synergism is observed due to higher solvent-solvent interaction than solute-solvent interaction. The balancing of both polar and apolar characetrisitcs in the solvent cage show significant solvatochromism

ECHOCARDIOGRAPHIC ASSESSMENT OF HYPERTENSIVE CHANGES IN ELDERLY PATIENTS OF ISOLATED SYSTOLIC HYPERTENSION WITH SPECIAL REFERENCE TO CARDIOVASCULAR COMPLICATIONS

Objective: The objective of the study was to assess the echocardiographic changes and cardiovascular complications in patients with isolated systolic hypertension (ISH). Methods: This was an observational cross-sectional study done in the Departments of General Medicine, Cardiology, and Radiodiagnosis of MKCG Medical College and Hospital, Berhampur, Odisha, India. Seventy patients above the age of 65 years with systolic blood pressure (BP) ≥140 mm Hg and diastolic BP <90 mm Hg, without any secondary causes of hypertension and antihypertensive drug therapy were selected for this study. Echocardiography and electrocardiography studies were implemented for demonstrating the development of cardiovascular complications. Results: Of 70 cases (41 males and 29 females), 64.3% were asymptomatic and 35.7% were symptomatic, with palpitation being the major symptom, 40% (28 cases) developed retinopathy, 45.71% developed increased left ventricular mass index (p=0.04), 18.57% had increased in LV volume (>90 ml/m2), 30% cases had regional wall motion abnormalities, 27.1% had reduced ejection fraction (<56%), and 52.66% showed LA enlargement in this study (p=0.048). Doppler measurements of diastolic filling were significant in patients with ISH with higher peak atrial velocity (A wave) of 79.71±11.79 cm/s and a lower ratio of peak early to atrial velocity of 0.82±0.29. Conclusion: This study demonstrates that elderly patients with ISH had a prevalence of concentric left ventricular hypertrophy (LVH) which was found to be more in female patients than in male patients followed by left atrial enlargement

EVALUATION OF RENAL CHANGES IN SICKLE CELL DISEASE IN A REFERRAL GOVERNMENT INSTITUTE OF SOUTHERN ODISHA

Objective: The objective of the study was to study various renal manifestations in sickle cell disease (SCD) and to establish a cause and effect relationship with the evaluation of risk factors. Methods: This prospective observational cross-sectional study was conducted on 82 SCD patients belonging to the age group of 15–50 years of both the genders over a period of 2 years from January 2019 to December 2020 in MKCG Medical College and Hospital, Berhampur, Odisha, India. Eighty-two patients, 32 (39.02%) having sickle cell anemia (SCA) and 50 (60.98%) having sickle cell trait (SCT), admitted to medicine and nephrology wards of the hospital were included in this study. SCD patients with other hemolytic anemia and with renal congenital/structural abnormality and patients with systemic diseases such as diabetes mellitus, systemic hypertension, and systemic lupus erythematosus were excluded from the study. Various laboratory investigations such as complete blood count, hemoglobin (Hb), serum sodium, serum potassium, serum urea, serum creatinine, fasting blood sugar, erythrocyte sedimentation rate, liver function test, urine routine, and microscopic test were carried out. Diagnosis of SCD patients was based on sickling test and high-performance liquid chromatography testing. Radiologic imaging (Sonography for renal changes) was done at radiodiagnosis department of the hospital. Results: Glomerular and tubular dysfunction was more in SCA (Hb SS) patients than SCT (Hb AS) patients and the abnormality was more in patients in crisis. Albuminuria in 78.12%, hematuria in 46.87%, cast and crystal in 28.12%, epithelial cell in 31.25%, and hyposthenuria in 56.25% were found in SCA patients. In SCT patients, albuminuria in 38%, hematuria in 16%, cast and crystal in 22%, epithelial cell in 12%, and hyposthenuria in 24% were found. All the above findings were more in percentages in crisis patients of both the groups. In SCA, 37.5% and in SCT, 2% were found to have chronic kidney disease. Conclusion: Renal involvement in the form of glomerular and tubular dysfunction occur in SCD and more in crisis patients, leading to renal complications, and end-stage renal disease

COMPARATIVE EVALUATION OF HYPERBARIC BUPIVACAINE AND LEVOBUPIVACAINE AS SPINAL ANESTHESIA AGENTS IN FEMALES UNDERGOING CESAREAN SECTION: A CLINICAL STUDY.

Background: Obstetric anesthesia procedures must achieve appropriate muscular relaxation and enough analgesia with not too few side effects on the mother or fetus due to the anesthetic drug utilized. The purpose of the current study was to compare the clinical outcomes of lower-segment cesarean section (LSCS) patients who received hyperbaric bupivacaine with levobupivacaine as a spinal anesthetic agent. Materials and methods: The research study included 240 pregnant women in the American Society of Anesthesiologists (ASA) I–II groups who were scheduled to undergo elective cesarean operations. Two groups of patients were randomly assigned. It took 2.3 cc to administer the mixtures of 10 mg levobupivacaine (0.5%) + 15 cg fentanyl for Group L (n = 60) patients, and 10 mg hyperbaric bupivacaine (0.5%) + 15 cg fentanyl for B (n = 60) patients. Pinprick and Bromage scales were used to evaluate the sensory and motor block features of the groups and side effects and observed hemodynamic alterations were noted. Results: It turned out that Group B had considerably longer times to achieve the maximal dermatome for the sensory block, to regress by two dermatomes, and to regress to the T12 dermatome. It was shown that Group B's motor block evolution progressed more quickly and lasted longer. While hypotension, bradycardia, and nausea were less common in Group L, Group B required more ephedrine (p<0.05). Conclusion: Levobupivacaine and fentanyl together can be a suitable choice for cesarean sections since the motor block time is shorter, the adverse effects of hypotension, bradycardia, and nausea are less common, and it maintains hemodynamic stability at higher sensory block levels

SYNTHESIS & IN-VITRO PROTEIN DENATURATION SCREENING OF 2-[(1, 5-DISUBSTITUTEDPHENYL-4,5-DIHYDRO-1H-PYRAZOL-3-YL)OXY]BENZOIC ACID DERIVATIVES

Abstract Novel 2-[(1,5-diphenyl-4,5-dihydro-1H-pyrazol-3-yl)oxy]benzoic acid (2a) & 2-[5-(2-hydroxyphenyl)-1-Phenyl-4,5-dihydro-1H-pyrazol-3-yl]benzoic acid (2b) were produced and examined for their in-vitro protein denaturation activities. It was discovered that compound 2b showed promise and had more potency than acetylsalicylic acid (NSAID) in inhibiting denaturation of bovine serum albumin. Docking research also supports this. The compound 2b has the highest docking scores with COX1(PDB ID 3N8Z), COX2 (PDB ID 4PH9), and TNF (PDB ID 2AZ5), respectively, of Etotal -233.75, -256.48, and -255.83. TLC and elemental tests were used to determine the compounds' purity. All of the generated molecules' analytical and spectral data (1H NMR, FTIR, and MS) were entirely consistent with the proposed structures

Forward-central two-particle correlations in p-Pb collisions at root s(NN)=5.02 TeV

Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 2GeV/c. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B. V.Peer reviewe

Azimuthal anisotropy of charged jet production in root s(NN)=2.76 TeV Pb-Pb collisions

We present measurements of the azimuthal dependence of charged jet production in central and semi-central root s(NN) = 2.76 TeV Pb-Pb collisions with respect to the second harmonic event plane, quantified as nu(ch)(2) (jet). Jet finding is performed employing the anti-k(T) algorithm with a resolution parameter R = 0.2 using charged tracks from the ALICE tracking system. The contribution of the azimuthal anisotropy of the underlying event is taken into account event-by-event. The remaining (statistical) region-to-region fluctuations are removed on an ensemble basis by unfolding the jet spectra for different event plane orientations independently. Significant non-zero nu(ch)(2) (jet) is observed in semi-central collisions (30-50% centrality) for 20 <p(T)(ch) (jet) <90 GeV/c. The azimuthal dependence of the charged jet production is similar to the dependence observed for jets comprising both charged and neutral fragments, and compatible with measurements of the nu(2) of single charged particles at high p(T). Good agreement between the data and predictions from JEWEL, an event generator simulating parton shower evolution in the presence of a dense QCD medium, is found in semi-central collisions. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).Peer reviewe

Event-shape engineering for inclusive spectra and elliptic flow in Pb-Pb collisions at root(NN)-N-S=2.76 TeV

Peer reviewe

Pseudorapidity and transverse-momentum distributions of charged particles in proton-proton collisions at root s=13 TeV

The pseudorapidity (eta) and transverse-momentum (p(T)) distributions of charged particles produced in proton-proton collisions are measured at the centre-of-mass energy root s = 13 TeV. The pseudorapidity distribution in vertical bar eta vertical bar <1.8 is reported for inelastic events and for events with at least one charged particle in vertical bar eta vertical bar <1. The pseudorapidity density of charged particles produced in the pseudorapidity region vertical bar eta vertical bar <0.5 is 5.31 +/- 0.18 and 6.46 +/- 0.19 for the two event classes, respectively. The transverse-momentum distribution of charged particles is measured in the range 0.15 <p(T) <20 GeV/c and vertical bar eta vertical bar <0.8 for events with at least one charged particle in vertical bar eta vertical bar <1. The evolution of the transverse momentum spectra of charged particles is also investigated as a function of event multiplicity. The results are compared with calculations from PYTHIA and EPOS Monte Carlo generators. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).Peer reviewe