Results 91 to 100 of about 208,128 (187)

An evaluation of two grassland-based systems of mid-season prime lamb production using prolific ewes of two genotypes [PDF]

open access: yes, 2009
peer-reviewedA 4-year study was undertaken to evaluate the effects of two contrasting management systems [year-round grazing (YRG) and normal seasonal grazing followed by indoor feeding during winter (GWF)] on performance of mid-season lambing ewes. On
Flanagan, S.   +2 more
core  

Cumulative live birth rates in women with endometriosis undergoing ART treatment

open access: yesHuman Reproduction
Abstract STUDY QUESTION How do cumulative live birth rates (CLBRs) in women with endometriosis compare to those with other infertility diagnoses undergoing ART? SUMMARY ANSWER Women with endometriosis as the sole cause of infertility ...
Repon C Paul   +7 more
openaire   +1 more source

Air Pollution and Infant Health: What Can We Learn From California's Recent Experience [PDF]

open access: yes
We examine the impact of air pollution on infant death in California over the 1990s. Our work offers several innovations: First, many previous studies examine populations subject to far greater levels of pollution.
Janet Currie, Matthew Neidell
core  

Impact of a positive Chlamydia trachomatis serology on cumulative IVF live birth rate

open access: yesReproductive BioMedicine Online
Does positive Chlamydia trachomatis serology have an impact on the cumulative live birth rate from IVF?A retrospective matched cohort study compared women with positive Chlamydia trachomatis serology (group A) who underwent IVF treatment between January 2016 and December 2021 with a control group of women with negative Chlamydia trachomatis serology ...
Gadenne, Clara   +5 more
openaire   +3 more sources

Whither human survival and longevity or the shape of things to come [PDF]

open access: yes, 2009
With the continuing increases in life expectancy, populations are ageing rapidly. Governments are concerned for the future of pensions and health care for which population forecasts are an important component for planning purposes. In this paper we focus
Mayhew, L., Smith, D.
core  

Age at Migration, Language and Fertility Patterns among Migrants to Canada [PDF]

open access: yes
This paper explores the fertility decisions of Canadian immigrants using a 20 percent sample of the Canadian Census of Population for the years 1991 through 2006.
Adsera, Alicia, Ferrer, Ana
core  

Trade-off between double cleavage-stage embryos transfer and single blastocyst-stage embryo transfer in patients with few good quality embryos in antagonist cycles: a retrospective study using a propensity score matching analysis

open access: yesBMC Pregnancy and Childbirth
Objective This study aimed to compare the per OPU clinical outcomes for transfer of Day 3 double cleavage-stage embryos (DET) and Day 5 single blastocyst-stage (SBT) in patients with five or fewer good quality embryos on day 3 per occyte pick-up cycle ...
Yan Han   +5 more
doaj   +1 more source

Navigating the teen years: promise and peril for northern New Hampshire youth [PDF]

open access: yes, 2009
This report provides a snapshot of how youth are doing in Carroll, Coos, and Grafton counties and describes some of the difficulties they and their communities face as they negotiate the transition to adulthood.
Shattuck, Anne M.
core   +1 more source

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