Combined U-Pb/Hf isotopic studies and phase equilibrium modelling of HT-UHT metapelites from Kambam Ultrahigh temperature Belt, South India: Constraints on tectonothermal history of the terrain

Lithos ◽  
2021 ◽  
pp. 106531
Author(s):  
J. Amal Dev ◽  
J.K. Tomson ◽  
Nilanjana Sorcar ◽  
V. Nandakumar
Keyword(s):  
Phase Equilibrium ◽  
South India ◽  
Isotopic Studies ◽  
History Of ◽  
Ultrahigh Temperature

scholarly journals High susceptibility to varicella among urban and rural pregnant women in South India: a brief report

2021 ◽  
Vol 149 ◽  
Author(s):  
Leeberk Raja Inbaraj ◽  
Sindhulina Chandrasingh ◽  
Nalini Arun Kumar ◽  
Jothi Suchitra ◽  
Abi Manesh
Keyword(s):  
Pregnant Women ◽  
South India ◽  
Significant Proportion ◽  
Prevalence Ratio ◽  
Epidemiological Studies ◽  
Lethal Outcome ◽  
Factors Associated ◽  
Rural And Urban ◽  
History Of ◽  
Secondary Hospital

Abstract Varicella infection during pregnancy has serious and/or difficult implications and in some cases lethal outcome. Though epidemiological studies in developing countries reveal that a significant proportion of patients may remain susceptible during pregnancy, such an estimate of susceptible women is not known in India. We designed this study to study the prevalence and factors associated with susceptibility to varicella among rural and urban pregnant women in South India. We prospectively recruited 430 pregnant women and analysed their serum varicella IgG antibodies as surrogates for protection. We estimated seroprevalence, the validity of self-reported history of chickenpox and factors associated with varicella susceptibility. We found 23 (95% CI 19.1–27.3) of women were susceptible. Nearly a quarter (22.2%) of the susceptible women had a history of exposure to chickenpox anytime in the past or during the current pregnancy. Self-reported history of varicella had a positive predictive value of 82.4%. Negative history of chickenpox (adjusted prevalence ratio (PR) 1.85, 95% CI 1.15–3.0) and receiving antenatal care from a rural secondary hospital (adjusted PR 4.08, 95% CI 2.1–7.65) were significantly associated with susceptibility. We conclude that high varicella susceptibility rates during pregnancy were noted and self-reported history of varicella may not be a reliable surrogate for protection.

Marriage, monogamy and HIV: a profile of HIV-infected women in south India

2000 ◽  
Vol 11 (4) ◽  
pp. 250-253 ◽  
Author(s):  
S Newmann ◽  
P Sarin ◽  
N Kumarasamy ◽  
E Amalraj ◽  
M Rogers ◽  
...  
Keyword(s):  
Risk Factor ◽  
Hiv Risk ◽  
South India ◽  
Reproductive Age ◽  
Indian Women ◽  
Clinical Presentations ◽  
Vertical Transmission Of Hiv ◽  
History Of ◽  
The Mean ◽  
Heterosexual Sex

A retrospective study was conducted on 134 HIV-infected females evaluated at an HIV/AIDS centre in south India to characterize their socio-demographics, HIV risk factors and initial clinical presentations. The mean age was 29 years; 81% were housewives; 95% were currently or previously married; 89% reported heterosexual sex as their only HIV risk factor; and 88% reported a history of monogamy. The majority were of reproductive age, thus the potential for vertical transmission of HIV and devastating impacts on families is alarming. Nearly half of these women initially presented asymptomatically implying that partner recruitment can enable early HIV detection. Single partner heterosexual sex with their husband was the only HIV risk factor for the majority of women. HIV prevention and intervention strategies need to focus on married, monogamous Indian women whose self-perception of HIV risk may be low, but whose risk is inextricably linked to the behaviour of their husbands.

scholarly journals Neoproterozoic basement history of Wrangel Island and Arctic Chukotka: integrated insights from zircon U–Pb, O and Hf isotopic studies

2017 ◽  
Vol 460 (1) ◽  
pp. 183-206 ◽  
Author(s):  
Eric S. Gottlieb ◽  
Victoria Pease ◽  
Elizabeth L. Miller ◽  
Vyacheslav V. Akinin
Keyword(s):  
Wrangel Island ◽  
Isotopic Studies ◽  
History Of

Ultrahigh-temperature metamorphism and decompression history of sapphirine granulites from Rajapalaiyam, southern India: implications for the formation of hot orogens during Gondwana assembly

2009 ◽  
Vol 147 (1) ◽  
pp. 42-58 ◽  
Author(s):  
T. TSUNOGAE ◽  
M. SANTOSH
Keyword(s):  
Southern India ◽  
Stability Field ◽  
Fine Grained ◽  
History Of ◽  
Peak Metamorphism ◽  
Gondwana Supercontinent ◽  
Isothermal Decompression ◽  
Ultrahigh Temperature ◽  
Late Neoproterozoic ◽  
Uht Metamorphism

AbstractSapphirine-bearing Mg–Al granulites from Rajapalaiyam in the southern part of the Madurai Block provide critical evidence for Late Neoproterozoic–Cambrian ultrahigh-temperature (UHT) metamorphism in southern India. Poikiloblastic garnet in quartzo-feldspathic and pelitic granulites contain inclusions of fine-grained subidioblastic to xenoblastic sapphirine associated with quartz, suggesting that the rocks underwent T > 1000°C peak metamorphism. Quartz inclusions in spinel within garnet are also regarded as clear evidence for a UHT condition. Inclusions of orthopyroxene within porphyroblastic garnet in the sapphirine-bearing rocks show the highest Al2O3 content of up to 10.3 wt%, suggesting T = 1050–1070°C and P = 8.5–9.5 kbar. Temperatures estimated from ternary feldspar and other geothermometers (T = 950–1000°C) further support extreme thermal metamorphism in this region. Xenoblastic spinel inclusions in sapphirine coexisting with quartz suggest that the spinel + quartz assemblage pre-dates the sapphirine + quartz assemblage, probably implying a cooling from T ~ 1050°C or an anticlockwise P–T path. The FMAS reaction sapphirine + quartz + garnet → orthopyroxene + sillimanite indicates a cooling from the sapphirine + quartz stability field after the peak metamorphism. Corona textures of orthopyroxene + cordierite (± sapphirine), orthopyroxene + sapphirine + cordierite, and cordierite + spinel around garnet suggest subsequent near-isothermal decompression followed by decompressional cooling toward T = 650–750°C and P = 4.5–5.5 kbar. The sapphirine–quartz association and related textures described in this study have an important bearing on the UHT metamorphism and exhumation history of the Madurai Block, as well as on the tectonic evolution of the continental deep crust in southern India. Our study provides a typical example for extreme metamorphism associated with collisional tectonics during the Late Neoproterozoic–Cambrian assembly of the Gondwana supercontinent.

Taḥqīq vs. Taqlīd in the Renaissances of Western Early Modernity

2018 ◽  
Vol 3 (1-2) ◽  
pp. 193-249 ◽  
Author(s):  
Matthew Melvin-Koushki
Keyword(s):  
Early Modern ◽  
Intellectual History ◽  
South India ◽  
Analytical Framework ◽  
Western Civilization ◽  
Early Modernity ◽  
Existential Crisis ◽  
History Of ◽  
European Renaissance ◽  
New Framework

Abstract This essay reviews a major new study of European Renaissance Arabist-humanist philology as it was actually practiced, humanist neoclassicizing anti-Arabism notwithstanding. While definitive and philologically magisterial, that study nevertheless falls prey structurally and conceptually to the very eurocentrism whose ideological-textual genesis it chronicles. Situating it within the comparative global early modern philologies framework that has now been proposed in the volume World Philology and the present journal is a necessary remedy—but only a partial one; for that framework too still obscures the multiplicity of specifically genetically Western early modernities, thus hobbling comparative history of philology. I therefore propose a new framework appropriate to the study of Greco-Arabo-Persian and Greco-Arabo-Latin as the two parallel and equally powerful philosophical-philological trajectories that together defined early modern Western—i.e., Hellenic-Abrahamic, Islamo-Judeo-Christian, west of South India—intellectual history: taḥqīq vs. taqlīd, progressivism vs. declinism. But a broadened and more balanced analytical framework alone cannot save philology, much less Western civilization, from the throes of its current existential crisis: for we philologists of the Euro-American academy are fevered too by the cosmological ill that is reflexive scientistic materialism. As antidote, I prescribe a progressivist, postmodern return to early modern Western deconstructive-reconstructive cosmic philology as prerequisite for the discipline’s survival, and perhaps even triumph, in the teeth of totalitarian colonialist-capitalist modernity.

An Epidemiological Assessment of Endometrial Carcinoma Including Demographics and Histopathological Correlation, from a Tertiary Care Teaching Hospital in South India

2021 ◽  
Vol 8 (30) ◽  
pp. 2751-2756
Author(s):  
Jeenu Babu ◽  
Reeba George Pulinilkunnathil ◽  
Bindu R. Kumar
Keyword(s):  
Risk Factors ◽  
Endometrial Carcinoma ◽  
Teaching Hospital ◽  
South India ◽  
Tertiary Care ◽  
Endometrial Biopsy ◽  
Prognostic Indicators ◽  
Histopathological Correlation ◽  
History Of ◽  
The Mean

BACKGROUND Endometrial cancer (EC) is also the second most common gynaecologic malignancy in developing countries, with an incidence of 5.9 per 100,000 women. Due to the multiple modifiable factors, a better understanding of the prognostic indicators can lead to early detection and treatment. The purpose of this study was to evaluate the frequency and the distribution of various risk factors, epidemiological factors, and histological patterns of patients diagnosed with endometrial carcinoma in a tertiary teaching hospital in south India and compare them with similar studies. The compiled findings of 60 consecutive cases that presented to our tertiary care teaching hospital in Kerala, south India, over oneand-a-half-year period were studied. METHODS This study was essentially an ex post facto retrospective study done on 60 patients for one and half years. Retrospective data collection and compilation were done with previously prepared structured questionnaires in patients with histologically proven endometrial carcinoma. All cases were subjected to hysterectomy with post-surgical histopathology correlation. A study of the risk factors, general epidemiological characteristics, endometrial biopsy findings, and post-surgical histopathology was done. RESULTS The mean age at presentation was 59.83 years. The mean age of menarche was 13.72 years, and menopause was 49.42 years. The majority of patients were married, multiparous, and presented with bleeding per vaginum (77 %). 61.7 % of the patients had a history of hypertension, 31.7 % had a history of hypothyroidism, and 43.3 % had a history of diabetes mellitus in the study population. The most common histopathological type by endometrial biopsy and histopathological correlation was endometrioid adenocarcinoma (88.3 %). CONCLUSIONS Postmenopausal age group, with early menarche and late menopause, high body mass index (BMI), thickened endometrium on ultrasound, and atrophic uterus were some of the features associated with endometrial carcinoma. The most common histological subtype was found to be endometrioid carcinoma KEYWORDS Endometrial Carcinoma, Risk Factors, Prognostic Indicators

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