Regeneration of the endometrium in each menstrual cycle is required for reproduction. Endogenous endometrial stem cells reside in the basalis layer and serve as a source of cells that differentiate ...to form the endometrium. Bone marrow-derived cells have been shown to take on functions outside the hematopoietic system.
To investigate the possibility that cells of extrauterine origin could repopulate the endometrium.
Endometrium from 4 HLA-mismatched bone marrow transplant recipients (1998-2002) was evaluated for donor HLA expression. Each recipient had a bone marrow donor with an HLA type that enabled determination of the origin of any cell. Endometrial biopsies also were obtained from 4 healthy control women.
HLA type was determined by immunohistochemistry and by reverse transcription-polymerase chain reaction.
Donor-derived endometrial cells were detected in endometrial biopsy samples from all bone marrow recipients and accounted for 0.2% to 48% of epithelial cells and 0.3% to 52% of stromal cells. None of the controls demonstrated HLA mismatch in endometrial samples.
These findings demonstrate that endometrial cells can originate from donor-derived bone marrow cells and suggest that nonuterine stem cells contribute to the regeneration of endometrial tissue.
The India Migration Report 2023: Student Migration is one of the first books that attempts to comprehensively explore the various nuances of Indian international student migration factoring in ...multiple factors that influence the migration journey of Indian students. It also looks into other migration stories including internal and international returnees, various impacts of remittances, and migration in the context of the pandemic.
This volume:
Inspect the factors driving the student migration from India, accounting for both the historical and current happenings influencing these factors. Following the pandemic, the book highlights the challenges faced by Indian international students in accessing healthcare and other related services which goes on to push them into vulnerable situations.
Outlines the reasoning behind Indian students' decision to emigrate and how families play an important role in influencing key migration decisions made by students and the different patterns of student migration observed in India.
Examines the employment challenges experienced, particularly following the COVID-19 pandemic, by the highly skilled Indian migrants and Indian international students.
Describes the role that recruitment and consultancy agencies play in international student mobility (ISM) and examines the intricate relationship between migrant agencies and migration facilitation.
Investigates the psychological, economic, and social challenges faced by Indian international students during their migration journey both during and after the completion of their course abroad.
Provides a critical overview of the conditions of both internal and international returnees to different parts of India.
Studies the impact of remittances on migrant households including their consumption patterns and human capital investment.
Analyses interstate migration networks through the prism of gender and critically assesses how gender migration patterns have altered throughout time.
Scholars, students, researchers, academicians, policymakers, or anyone with an interest in migration, migration politics, economics, social psychology, migration policies, development studies, sociology, social anthropology, and gender studies will find this book on Indian student migration extremely informative. The book is a comprehensive collection of various studies that look into the multiple aspects of student migration but also extend to other pertinent issues of Indian migration that are extremely relevant at this given point in time.
We present time-of-arrival (TOA) measurements and timing models of 47 millisecond pulsars observed from 2004 to 2017 at the Arecibo Observatory and the Green Bank Telescope by the North American ...Nanohertz Observatory for Gravitational Waves (NANOGrav). The observing cadence was three to four weeks for most pulsars over most of this time span, with weekly observations of six sources. These data were collected for use in low-frequency gravitational wave searches and for other astrophysical purposes. We detail our observational methods and present a set of TOA measurements, based on "narrowband" analysis, in which many TOAs are calculated within narrow radio-frequency bands for data collected simultaneously across a wide bandwidth. A separate set of "wideband" TOAs will be presented in a companion paper. We detail a number of methodological changes, compared to our previous work, which yield a cleaner and more uniformly processed data set. Our timing models include several new astrometric and binary pulsar measurements, including previously unpublished values for the parallaxes of PSRs J1832−0836 and J2322+2057, the secular derivatives of the projected semimajor orbital axes of PSRs J0613−0200 and J2229+2643, and the first detection of the Shapiro delay in PSR J2145−0750. We report detectable levels of red noise in the time series for 14 pulsars. As a check on timing model reliability, we investigate the stability of astrometric parameters across data sets of different lengths. We also report flux density measurements for all pulsars observed. Searches for stochastic and continuous gravitational waves using these data will be subjects of forthcoming publications.
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