Results 41 to 50 of about 5,287,096 (260)
Traditional agricultural practices and the sex ratio today. [PDF]
PLoS ONE, 2018 We study the historical origins of cross-country differences in the male-to-female sex ratio. Our analysis focuses on the use of the plough in traditional agriculture.
Alberto Alesina +2 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann +8 more
wiley +1 more source
A study on sex ratio at birth in suburban slums of Mumbai
Indian Journal of Public Health, 2011 A cross sectional study was conducted in four selected suburban slums of Mumbai to determine the sex ratio at birth and to assess the various factors related to it.
Ancilla Tragler
doaj +1 more source
Parthenogenesis and the Evolution of Anisogamy
Cells, 2021 Recently, it was pointed out that classic models for the evolution of anisogamy do not take into account the possibility of parthenogenetic reproduction, even though sex is facultative in many relevant taxa (e.g., algae) that harbour both anisogamous and
George W. A. Constable, Hanna Kokko
doaj +1 more source
Patterns of silver eel (Anguilla anguilla L.) sex ratio in a catchment [PDF]
, 2006 Changes in the numbers and size-class structure of European silver eels, Anguilla anguilla, in the River Fre´mur (France) were examined over a 9-year period after installation of downstream eel passes.
Guillouët, Jérôme +9 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Cytomegalovirus (CMV) is a recognized trigger of immune thrombocytopenia (ITP); however, its incidence and impact on disease course in children remain controversial. Therefore, we aimed to characterize the clinical course of pediatric patients with CMV‐associated ITP.
Oded Gilad +9 more
wiley +1 more source
Ecosphere, 2021 A sex ratio is one of the most basic demographic estimates produced because it is easy to collect and provides deeper insight into population dynamics for the species under consideration.
J. E. Kahn +4 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Reduced bone mineral density (BMD) has been reported in survivors of childhood and young adult acute lymphoblastic leukaemia (ALL); however, data from cohorts treated with contemporary protocols and including matched controls remain limited.
Karen Schow Jensen +10 more
wiley +1 more source
BMC Evolutionary Biology, 2010 Background The Y-chromosomal diversity in the African buffalo (Syncerus caffer) population of Kruger National Park (KNP) is characterized by rainfall-driven haplotype frequency shifts between year cohorts.
Greyling Barend J +7 more
doaj +1 more source
Trends and seasonal variations in human secondary sex ratio in Southwest Nigeria: A 10-year survey
Advances in Human Biology, 2022 Introduction: Secondary sex ratio is the number of live male births per 100 female births. In humans, the primary sex ratio, which is the sex ratio at conception, is expected to be 1:1 in natural populations based on the law of independent assortment of ...
Samson Taiwo Fakorede +5 more
doaj +1 more source