Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"Early stages of pregnancy"”.
-
Air Pollution and Fetal Loss in the Global Tropics
… However, only a few studies explore the effects of in-utero exposure to air pollution on fetal loss, and none of the studies has been done in developing countries. In this study, we examine the impact of naturally caused CO and PM 2.5 on reproductive outcomes in 40 developing countries from 1997 …
-
ΜΕΛΕΤΗ ΕΠΙ ΤΗΣ ΚΡΥΣΤΑΛΛΩΣΕΩΣ ΤΟΥ ΑΜΝΙΑΚΟΥ ΥΓΡΟΥ
THE CRYSTALLIZATION OF THE AMNIOTIC FLUID IN VARIOUS STAGES OF PREGNANCY WAS STUDIED. THERE WERE TAKEN 61 SAMPLES OF AMNIOTIC FLUID (43 WITH AMNIOCENTESIS AND 16 FROM THE POSTERIOR CUL-DE-SAC AFTER SPONTANEOUS RUPTURE OF THE MEMBRANES. IT WAS NOTICED THAT THE CRYSTALS WHICH WERE FORMED IN A DRY …
-
Development of an Interferon Bioassay and Primitive Endoderm Cell Lines to Study Lineage Specification During Early Bovine Embryogenesis
Embryonic wastage is rampant in cattle during early stages of pregnancy, particularly the first few weeks of gestation, a time recognized for significant remodeling of the embryo. Of particular interest to this laboratory are the first two lineage specification events, trophectoderm (TE) and …
-
Evidence for the formation of supplementary corpora lutea in the pregnant and pseudopregnant rat
In a series of experiments investigating a possible post-coitum contraceptive, it was observed that the numbers of corpora lutea (CL) of pregnant Sprague-Dawley (CD) rats were greater than in cyclic, unmated control females (p<0.001). The ontogeny of these supplementary CL (SCL) was established by …
-
Need conflicts of pregnancy and the learning of need related stimuli
This research studied pregnancy and marital status in relation to stimuli connoting needs related to mothering. The particular needs under investigation were the need to give nurturance (to mother) and the need to receive succorance (to be mothered). In the formulation of this study, pregnancy was …
-
Three Essays on Analysis of U.S. Infant Mortality Using Systems and Data Science Approaches
… interventions that can reduce IM. However, death of an infant is the result of the interplay between many risk factors, which in some cases can be traced to the infancy of their parents. Consequently, these complex interactions challenge the effectiveness of many interventions. The long-term goal …
-
Maternal Chlamydia trachomatis and Neisseria gonorrhoeae Infections and the Outcome of Preterm Birth: The Impact of Early Detection
<p>Preterm birth is the leading cause of perinatal morbidity and mortality. The risks of preterm birth are heterogeneous and there remains much to elucidate regarding etiology and epidemiology of this perinatal condition. Maternal genitourinary tract infection may reduce the length of gestation …
-
Molecular mechanisms regulating implantation
Implantation, a critical early event during pregnancy, is a three stage process. It starts with apposition and adhesion of the blastocyst to a receptive uterine epithelium which is then followed by invasion of the blastocyst into a decidualizing stroma. These stages are tightly regulated by steroid …
-
The role of ERα in the uterus during embryo implantation and in the ovary during ovarian tumorigenesis
… the steroid hormone estrogen elicit a multitude of biological effects in physiological and pathophysiological processes. Estrogen acts via its cognate steroid hormone receptor, estrogen receptor alpha (ERalpha) or beta (ERalpha, to fulfill these biological processes. This dissertation …