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Pablo A. Nepomnaschy
Simon Fraser University
EndocrinologyDemographyPopulationMedicineBiology
28Publications
9H-index
331Citations
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Publications 30
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#1Luseadra McKerracher (SFU: Simon Fraser University)H-Index: 4
#2Pablo A. Nepomnaschy (SFU: Simon Fraser University)H-Index: 9
Last. Mark Collard (SFU: Simon Fraser University)H-Index: 33
view all 5 authors...
Variation in the durations of exclusive breastfeeding (exBF) and any breastfeeding (anyBF) is associated with socioecological factors. This plasticity in breastfeeding behavior appears adaptive, but the mechanisms involved are unclear. With this concept in mind, we investigated whether durations of exBF and anyBF in a rural Maya population covary with markers of a form of socioecological change—market integration—and whether individual factors (individual learning, physiological plasticity) and/...
Source
#1Davide Ponzi (University of Parma)H-Index: 1
#2Mark V. Flinn (Baylor University)H-Index: 1
Last. Pablo A. Nepomnaschy (SFU: Simon Fraser University)H-Index: 9
view all 4 authors...
Abstract Natural selection favors the evolution of mechanisms that optimize the allocation of resources and time among competing traits. Hormones mediate developmental plasticity, the changes in the phenotype that occur during ontogeny. Despite their highly conserved functions, the flexibilities of human hormonal systems suggest a strong history of adaptation to variable environments. Physiological research on developmental plasticity has focused on the early programming effects of stress, the h...
2 CitationsSource
#1Tomas Rapaport (SFU: Simon Fraser University)H-Index: 1
#2Fernando A. Villaseñor (SFU: Simon Fraser University)
Last. Pablo A. Nepomnaschy (SFU: Simon Fraser University)H-Index: 9
view all 4 authors...
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1 CitationsSource
#1Tejaswi Ogirala (SFU: Simon Fraser University)H-Index: 1
#2Ashley Eapen (SFU: Simon Fraser University)H-Index: 1
Last. Ash M. Parameswaran (SFU: Simon Fraser University)H-Index: 9
view all 6 authors...
Biologists frequently collect and analyze biospecimens in naturalistic (i.e., field) conditions to ascertain information regarding the physiological status of their study participants. Generally, field-collected biospecimens need to be stored frozen in the field and then transported frozen to laboratory facilities where traditional biomarker assays, such as enzyme-linked immunosorbent assays (ELISAs), are conducted. As proper storage and transport of frozen specimens is often logistically diffic...
6 CitationsSource
#1Luseadra McKerracher (SFU: Simon Fraser University)H-Index: 4
#2Mark Collard (King's College, Aberdeen)H-Index: 1
Last. Pablo A. Nepomnaschy (SFU: Simon Fraser University)H-Index: 9
view all 5 authors...
AbstractBackground: Economic transitions expose indigenous populations to a variety of ecological and cultural challenges, especially regarding diet and stress. These kinds of challenges are predicted by evolutionary ecological theory to have fitness consequences (differential reproduction) and, indeed, are often associated with changes in fertility dynamics. It is currently unclear whether international immigration might impact the nature of such an economic transition or its consequences for f...
1 CitationsSource
#1Cindy K. BarhaH-Index: 18
#2Katrina G. SalvanteH-Index: 18
Last. Pablo A. NepomnaschyH-Index: 9
view all 7 authors...
Source
#1Luseadra McKerracher (SFU: Simon Fraser University)H-Index: 4
#2Mark Collard (SFU: Simon Fraser University)H-Index: 33
Last. Pablo A. Nepomnaschy (SFU: Simon Fraser University)H-Index: 9
view all 5 authors...
Objectives The causes of variation in breastfeeding duration in humans are poorly understood, but life history factors related to maternal energetics drive much of the variation in lactation duration in nonhuman animals. With this in mind, we investigated whether four energy-related factors influence variation in breastfeeding duration in a non-industrial human population: (1) mortality risk during mother's development (assessed via mother's adult height), (2) reliance on nutrient-dense weaning ...
3 CitationsSource
#2Mark CollardH-Index: 1
Last. Michael P. RichardsH-Index: 8
view all 4 authors...
#1Z Cao (SFU: Simon Fraser University)H-Index: 1
#2H-Y. Tseng (SFU: Simon Fraser University)H-Index: 1
Last. M. Parameswaran (SFU: Simon Fraser University)H-Index: 1
view all 5 authors...
A low cost and highly sensitive fluorescence detection system using smart phone cameras was developed for biological and biochemical detection experiments. The system was designed for standard 96-well plates, which are typically used in life-sciences laboratories. Traditional fluorescence detection is done using specialized optics, filters and ultra-sensitive detectors such as photo-multipliers, which makes the system expensive. In our method, the 96-well plate is imaged using a smart phone came...
1 CitationsSource
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