Results 181 to 190 of about 148,719 (353)
Test and evaluation of the 2.4-micron photorefractor ocular screening system [PDF]
An improved 2.4-m photorefractor ocular screening system was tested and evaluated. The photorefractor system works on the principal of obtaining a colored photograph of both human eyes; and, by analysis of the retinal reflex images, certain ocular ...
Richardson, J. R.
core +1 more source
Gender &History, EarlyView.Abstract This article deals with anxiety about and the shaming of modern urban mothers and wives on the mines of the late colonial Central African Copperbelt. Women's various labours and public presence lead to ambivalent depictions, such as the ‘careless mother’, that were part of a broader array of anxieties about women's autonomy on the mines ...
Stephanie Lämmert
wiley +1 more source
Combined and interaction effects of outdoor and reading time on myopia onset: evidence from over 210 000 schoolchildren in China. [PDF]
J Glob HealthLi J +10 more
europepmc +1 more source
The predatory behavior of ants: an impressive panoply of morphological adaptations
Insect Science, EarlyView.This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean +6 more
wiley +1 more source
Correlation between perceived air pollution and myopia: an exploration of the mediating effects of healthy lifestyle factors. [PDF]
BMC Public HealthZhang Z, Tang C, Shi P, Feng X.
europepmc +1 more source
Nuclear cataract and myopia during hyperbaric oxygen therapy. [PDF]
, 1984 B.‐M. Palmquist +2 more
openalex +1 more source
Endogenous Technology Spillovers in R&D Collaboration Networks
The RAND Journal of Economics, EarlyView.ABSTRACT We introduce an R&D network formation model where firms choose both R&D efforts and collaboration partners. Neighbors in the network benefit from each other's R&D through technology spillovers, and there exists competition effects reflecting strategic substitutability in R&D.
Chih‐Sheng Hsieh +2 more
wiley +1 more source
Tracking myopia development through axial length progression: a retrospective longitudinal study. [PDF]
Ann MedTao Z +6 more
europepmc +1 more source