Browsing by Author "S. Agarwal"

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Antistress properties of an indigenous compound and its significance in the management of psychosomatic disorders
(1984) G.P. Dubey; A. Agarwal; S. Agarwal
[No abstract available]
Birth Weight Patterns in Rural Undernourished Pregnant Women
(2002) S. Agarwal; A. Agarwal; A.K. Bansal; D.K. Agarwal; K.N. Agarwal
Objective: To study the birth weight pattern in chronic as well as currently undernourished pregnant women. Design: Prospective study of rural pregnant women by following eligible women. Setting: Two adjoining blocks of rural Varanasi. Methods: 3700 pregnant women from rural areas of Varanasi for whom data for anthropometry, hemoglobin, dietary intake, birth weight, fundal height and abdominal girth at 16±2, 28±2 and 36±2 weeks of gestation were recorded. Outcome measure was birth weight pattern of newborns. Results: Of the births, 7.2% were <2250 g and 27.4% <2500 g. The weekly birth weight increments in gestation 36-42 weeks were 5-53 g, only. The fundal height did not increase during 35-39 weeks of gestation (lower by 5 cm as compared to normal). Nutrition supplement in the third trimester significantly increased fundal height and abdominal girth. Fundal height below 24.5 cm at 28 weeks of gestation (1368 women) was associated with higher low birth weight deliveries. Conclusions: Birth weight and fundal height increments during later pregnancy are low in undernourished pregnant women. Fundal height <24.5 cm at 28 weeks of gestation identified women with higher risk for lowbirth weight infants. The prevalence of low birth weight was 27.4% and of prematurity was 6.6%.
Comparative Study of Pre-Equilibrium Models and Mechanism of Alpha Particle Induced Reactions
(1990) N.L. Singh; S. Agarwal; J. Rama Rao
Excitation functions of (α, xn yp zα) reactions on 93Nb and 169Tm have been measured upto 50 MeV by stacked-foil activation technique with a view to improve the quality of data in the case of 169Tm, which was earlier measured with a poor resolution scintillation detector. Comparisons are presented with the predictions of three pre-equilibrium models (i.e. Exciton, Hybrid and Index Models). While for {α, xn) type of reactions reasonably explainable pre-compound contributions are found, there seem to be indications of direct inelastic scattering effects in (α, αxn) type of reactions in medium and heavy nuclei. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.
Effects of metformin treatment on luteal phase progesterone concentration in polycystic ovary syndrome
(Associacao Brasileira de Divulgacao Cientifica, 2004) K.J. Meenakumari; S. Agarwal; A. Krishna; L.K. Pandey
The causes of luteal phase progesterone deficiency in polycystic ovary syndrome (PCOS) are not known. To determine the possible involvement of hyperinsulinemia in luteal phase progesterone deficiency in women with PCOS, we examined the relationship between progesterone, luteinizing hormone (LH) and insulin during the luteal phase and studied the effect of metformin on luteal progesterone levels in PCOS. Patients with PCOS (19 women aged 18-35 years) were treated with metformin (500 mg three times daily) for 4 weeks prior to the test cycle and throughout the study period, and submitted to ovulation induction with clomiphene citrate. Blood samples were collected from control (N = 5, same age range as PCOS women) and PCOS women during the late follicular (one sample) and luteal (3 samples) phases and LH, insulin and progesterone concentrations were determined. Results were analyzed by one-way analysis of variance (ANOVA), Duncan's test and Karl Pearson's coefficient of correlation (r). The endocrine study showed low progesterone level (4.9 ng/ml) during luteal phase in the PCOS women as compared with control (21.6 ng/ml). A significant negative correlation was observed between insulin and progesterone (r = -0.60; P < 0.01) and between progesterone and LH (r = -0.56; P < 0.05) concentrations, and a positive correlation (r = 0.83; P < 0.001) was observed between LH and insulin. The study further demonstrated a significant enhancement in luteal progesterone concentration (16.97 ng/ml) in PCOS women treated with metformin. The results suggest that hyperinsulinemia/insulin resistance may be responsible for low progesterone levels during the luteal phase in PCOS. The luteal progesterone level may be enhanced in PCOS by decreasing insulin secretion with metformin.
Excitation functions for radioactive isotopes produced by alpha particle induced reactions with silver
(1987) N.L. Singh; S. Agarwal; L. Chaturvedi; J.Rama Rao
Stacked foil activation technique and Ge(Li) γ-ray spectroscopy have been used for the determination of the excitation functions, up to 50 MeV, of seven reactions, 107Ag(α, n), (α, 2n), (α, αn), (α, α2n); 109Ag(α, 2n), (α, 3n) and (α, 4n). Since, natural as the target has two odd-mass stable isotopes of about equal abundance, 107Ag(51.83%) and 109Ag(48.17%), their activation in some cases gives the same residual nucleus through different reaction channels, but with very different Q-values. In such cases, the individual reaction cross sections are separated with the help of the ratio of the theoretical cross sections. The theoretical predictions based on a pre-equilibrium exciton model, with an initial exciton configuration of n0 = 5 (5p0h), appear to give a good fit to the experimental data. © 1987.
Excitation functions of alpha particle induced reactions in cobalt in the energy range 10-120 MeV using variable energy cyclotrons
(1987) J.Rama Rao; A.V.Mohan Rao; S. Mukherjee; R. Upadhyay; N.L. Singh; S. Agarwal; L. Chaturvedi; P.P. Singh
Alpha particle induced reactions on the target element cobalt were investigated from 10 to 120 MeV, using foil stack activation technique and the Ge(Li) gamma ray spectroscopy method. Ten excitation functions for reaction residues 51Cr, 52,54Mn, 56,57Ni, 59Fe and 56,57,58,60Co were measured, of which 59Co(α, p6n)56Ni reaction was measured for the first time. A comparison with pre-equilibrium hybrid model was made using initial exciton number, n0 = 4 (4pOh). It is observed that for (α, xnypzα) type reactions the agreement is within a factor of 2, while for (α, xnyp) type the disagreement is generally by more than an order of magnitude. © 1987.
Horizons: nuclear astrophysics in the 2020s and beyond
(Institute of Physics, 2022) H. Schatz; A.D. Becerril Reyes; A. Best; E.F. Brown; K. Chatziioannou; K.A. Chipps; C.M. Deibel; R. Ezzeddine; D.K. Galloway; C.J. Hansen; F. Herwig; A.P. Ji; M. Lugaro; Z. Meisel; D. Norman; J.S. Read; L.F. Roberts; A. Spyrou; I. Tews; F.X. Timmes; C. Travaglio; N. Vassh; C. Abia; P. Adsley; S. Agarwal; M. Aliotta; W. Aoki; A. Arcones; A. Aryan; A. Bandyopadhyay; A. Banu; D.W. Bardayan; J. Barnes; A. Bauswein; T.C. Beers; J. Bishop; T. Boztepe; B. Cote; M.E. Caplan; A.E. Champagne; J.A. Clark; M. Couder; A. Couture; S.E. de Mink; S. Debnath; R.J. deBoer; J. den Hartogh; P. Denissenkov; V. Dexheimer; I. Dillmann; J.E. Escher; M.A. Famiano; R. Farmer; R. Fisher; C. Frohlich; A. Frebel; C. Fryer; G. Fuller; A.K. Ganguly; S. Ghosh; B.K. Gibson; T. Gorda; K.N. Gourgouliatos; V. Graber; M. Gupta; W.C. Haxton; A. Heger; W.R. Hix; W.C.G. Ho; E.M. Holmbeck; A.A. Hood; S. Huth; G. Imbriani; R.G. Izzard; R. Jain; H. Jayatissa; Z. Johnston; T. Kajino; A. Kankainen; G.G. Kiss; A. Kwiatkowski; M. La Cognata; A.M. Laird; L. Lamia; P. Landry; E. Laplace; K.D. Launey; D. Leahy; G. Leckenby; A. Lennarz; B. Longfellow; A.E. Lovell; W.G. Lynch; S.M. Lyons; K. Maeda; E. Masha; C. Matei; J. Merc; B. Messer; F. Montes; A. Mukherjee; M.R. Mumpower; D. Neto; B. Nevins; W.G. Newton; L.Q. Nguyen; K. Nishikawa; N. Nishimura; F.M. Nunes; E. O'Connor; B.W. O'Shea; W.-J. Ong; S.D. Pain; M.A. Pajkos; M. Pignatari; R.G. Pizzone; V.M. Placco; T. Plewa; B. Pritychenko; A. Psaltis; D. Puentes; Y.-Z. Qian; D. Radice; D. Rapagnani; B.M. Rebeiro; R. Reifarth; A.L. Richard; N. Rijal; I.U. Roederer; J.S. Rojo; Y. Saito; A. Schwenk; M.L. Sergi; R.S. Sidhu; A. Simon; T. Sivarani; A. Skuladottir; M.S. Smith; A. Spiridon; T.M. Sprouse; S. Starrfield; A.W. Steiner; F. Strieder; I. Sultana; R. Surman; T. Szucs; A. Tawfik; F. Thielemann; L. Trache; R. Trappitsch; M.B. Tsang; A. Tumino; S. Upadhyayula; J.O. Valle Martinez; M. Van der Swaelmen; C. Viscasillas Vázquez; A. Watts; B. Wehmeyer; M. Wiescher; C. Wrede; J. Yoon; R.G.T. Zegers; M.A. Zermane; M. Zingale
Nuclear astrophysics is a field at the intersection of nuclear physics and astrophysics, which seeks to understand the nuclear engines of astronomical objects and the origin of the chemical elements. This white paper summarizes progress and status of the field, the new open questions that have emerged, and the tremendous scientific opportunities that have opened up with major advances in capabilities across an ever growing number of disciplines and subfields that need to be integrated. We take a holistic view of the field discussing the unique challenges and opportunities in nuclear astrophysics in regards to science, diversity, education, and the interdisciplinarity and breadth of the field. Clearly nuclear astrophysics is a dynamic field with a bright future that is entering a new era of discovery opportunities. © 2022 IOP Publishing Ltd.
Investigation of lymphocyte subpopulations and hypersensitivity skin tests during the menstrual cycle and pregnancy
(1982) S. Agarwal; H.S. Shukla; M. Verma; S.C. Gupta; K. Mukherjee
Cell-mediated immune responses were examined during the menstrual cycle of 10 healthy females and in 90 pregnant females, 10 for each month of gestation, and in 10 females 2-4 weeks after normal delivery. Lymphocytes and their subpopulations and PPD hypersensitivity skin tests were investigated. The lymphocyte subpopulation T-cells showed statistically significant depression at the time of ovulation (P < 0.01) and during the entire period of gestation (P < 0.001) with recovery in the post-partum period. There was borderline PPD skin response during pregnancy which became positive after parturition. These changes were demonstrated to be specific to conception but the exact mechanism of the T-cell depression is not known. There was a corresponding rise in the B-cell count.
ISOT consensus statement for the kidney transplant recipient and living donor with a previous diagnosis of COVID-19
(Wolters Kluwer Medknow Publications, 2022) Vivek Kute; Sandeep Guleria; Anil Bhalla; Ashish Sharma; S. Agarwal; Manisha Sahay; Santosh Varughese; Narayan Prasad; P. Varma; Sunil Shroff; Harsh Vardhan; Manish Balwani; Shruti Dave; Dhamendra Bhadauria; Manish Rathi; Dhananjay Agarwal; Pankaj Shah; Jai Prakash
[No abstract available]
Malignant eccrine spiradenoma: An unusual presentation
(2002) S. Agarwal; R. Khanna; N. Arya; A. Khanna
An unusual case of a 60-year-woman with a progressively increasing painless, ulcerated plaque-like lesion in her right groin is described. The lesion was associated with multiple satellite nodules involving the right thigh with massive lymphoedema oft he involved limb. Histology established the diagnosis of an eccrine spiradenoma with malignant transformation in a satellite nodule. Wide surgical excision was not possible and the patient was subjected to palliative radiotherapy.
Non-equilibrium effects in alpha-particle-induced reactions in light, medium and heavy nuclei up to 120 mev
(1987) J. Rama Rao; A.V. Mohan Rao; S. Mukherjee; R. Upadhyay; N.L. Singh; S. Agarwal; L. Chaturvedi; P.P. Singh
Alpha-particle-induced reactions on the target elements vanadium, niobium and holmium were investigated in the energy range from 10 to 120 MeV, using the foil stack activation technique and Ge(Li) gamma-ray spectroscopy. The excitation functions of six reactions of the (alpha, xn) type were studied, of which three reactions 51V(alpha, n)54Mn, 165Ho(alpha ,2n)167Tm and 165Ho(alpha ,4n)165Tm were measured for the first time in the energy range from 80 to 120 MeV. A preliminary theoretical comparison with the pre-equilibrium hybrid model was made using an initial exciton number of n0=4 (4p0h) and general agreement was found for all except the 51V(alpha , n) and 93Nb(alpha , n) reactions at high energies. © 1987 IOP Publishing Ltd.
Nutritional status of rural non-pregnant non-lactating women in reproductive age
(1998) M. Srivastava; D.K. Agarwal; A. Agarwal; S. Agarwal; K.N. Agarwal
Objective: To find out the degree of current undernutrition in rural reproductive age women. Setting: 43 villages of two adjoining rural blocks of Varanasi. Methods: 6130 non-pregnant and non-lactating rural woman in the age group 18-45 year were studied for sociodemographic characteriatics and anthropometry, i.e., weight, height and midarm circumferance. Their percentiles for age and for weight for hight were calculated by using cubic spline method. Results: The women in 10th centile weghed <38kg and those in >90th centile weighed 47-48 kg; 74.2% had weight <45 kg. The 50th centile height ranged between 148-150 cm; 13.5% were <145 cm. For mid arm circumference 50th and 90th centile values were around 22 and 24 cm, respectively. Mid arm circumference and height had significant linear correlation with weight. Conclusion: Around 50% rural UP women in pre-pregnancy state are undernourished. With age these rural women did not change in wight or mid-arm circumference.
Performance of quantitative CT parameters in assessment of disease severity in COPD: A prospective study
(Wolters Kluwer Medknow Publications, 2018) Ishan Kumar; Ashish Verma; Avinash Jain; S. Agarwal
Background: Both emphysematous destruction of lung parenchyma and airway remodeling is thought to contribute to airflow limitation in cases of chronic obstructive pulmonary disease (COPD). Objective: To evaluate the value of quantitative computed tomography (QCT) parameters of emphysema and airway disease with disease severity in patients with COPD. Materials and Methods: We prospectively studied 50 patients with COPD, which included nonsmokers and patients with different degrees of cumulative smoking exposure. Three QCT parameters namely LAA% (low attenuation area percentage), WA% (Wall area percentage), and pi10 were calculated as per the standard technique. Forced expiratory volume in 1 s (FEV1), BODE score, and MMRC dyspnea scale were used as measures of disease severity. Results: FEV1 was inversely and significantly associated with all three QCT parameters. Receiver operated characteristic curves in prediction of GOLD class 3 COPD yielded cut-off values of 12.2, 61.45, and 3.5 for LAA%, WA%, and pi10, respectively, with high sensitivities and specificities. In multiple linear regression model, however, only LAA% proved to be significantly associated with FEV1, BODE, and dyspnea. Conclusion: QCT indices of both emphysema and airway disease influence FEV1, dyspnea, and BODE score in patients with COPD. Emphysema, however, appears to be more closely related to disease severity. © 2018 Indian Journal of Radiology and Imaging Published by Wolters Kluwer - Medknow.
Role of nandrolone phenylpropionate in the chemotherapy of pulmonary tuberculosis (short course chemotherapy). A controlled clinical trial
(1982) D.C. Roy; S. Agarwal; S.P. Ganguli
Durabolin employed with anti-tuberculous chemotherapy acts as a non-specific therapeutic adjuvant. The administration of the drug did not provoke any hyper-androgenic activity.