The pupil can be excited to sustained oscillations under high gain feedback conditions. The period of these oscillations (cycle time) is reduced by increased average light level by an amount commensurate with reductions in phase lag reported in the companion paper (Myers et al. 1991b). A mathematical model of this phenomenon is used to unify and clarify experimental data presented here and in the literature.
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http://dx.doi.org/10.1007/BF00224858 | DOI Listing |
Front Vet Sci
January 2025
College of Animal Science, Xinjiang Agricultural University, Urumqi, China.
Introduction: This study examines the effects of steam-flaked corn starter on pre-weaned Simmental calves' growth, immunity, and metabolism. Despite benefits shown in adult cattle, research on calves is limited. The goal is to optimize calf feeding for better growth, health, and nutrient use.
View Article and Find Full Text PDFProc Biol Sci
January 2025
Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564, Japan.
Diadromous fishes exhibit latitudinal clines of ocean dependency at inter- and intra-species levels. A pattern of ocean dependence at high latitudes and river dependence at low latitudes is explained by relative aquatic productivity. Such latitudinal productivity clines may induce geographical variations in life-history diversity within migratory phenotypes.
View Article and Find Full Text PDFMatern Child Nutr
January 2025
Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, USA.
Feeding behaviours are established early in life, with lifelong influences on children's appetite, growth and health, emphasizing the importance of understanding how parent-child feeding interactions relate to children's eating and growth patterns. The objective was to examine reciprocity between parent-reported feeding practices and children's observed willingness-to-try-new-foods in childcare settings without parental presence, thereby assessing independence from context and parental influence. The sample included parent-child dyads (n = 436) recruited from 51 childcare centres across 10 counties.
View Article and Find Full Text PDFWave mixing (WM) techniques are crucial for applications such as supercontinuum generation, frequency conversion, and high-dimensional quantum encoding. However, their efficiency is often limited by complex phase-matching requirements, and current insights into phase-matching mechanisms for high-order WM remain limited. To address this, compact optical path configurations with high-peak-power, synchronous, multicolor ultrafast laser sources are needed to enhance high-order wave-mixing efficiency.
View Article and Find Full Text PDFA three-sectioned, bidirectionally coupled, tunable, optical comb source is presented. The photonic integrated circuit (PIC) consists of a gain section, a slotted mirror section and a Fabry-Perot (FP) section. Optical frequency combs (OFCs) are produced by gain switching the FP section via a high power radio frequency (RF) signal.
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