How many edge-colors for almost-rainbow $K_5$s? 来自 学术范 喜欢 0 阅读量: 29 作者: E Krop 摘要: Let f(n) f(n) be the minimum number of colors necessary to color the edges of K_n K_n so that every path or cycle with four edges is at least three-colored. We show that...
Trout have their best visual acuity at about 3 inches—right about the distance when many of our flies are rejected. At 12 inches, the fly becomes a blur, and silhouette becomes more important than color. At both these distances, humans have superior visual acuity and can observe far more ...
The lifespans listed above are possible with good care and a healthy specimen, buttropical fishoften live a much shorter lifespan than you might expect. There are many factors that can determine your pet’s longevity, and many of them are in your control as a fish keeper. Continue reading ...
With a massive farming sim indie game likeStardew Valley, there are so many secrets and obscure characters that players are still finding out about. We wouldn’t blame you if you played the game for a while and only now found out about the Trash Bear. Here’s everything you need to kno...
Interbreeding between animals of different lineages is widespread in nature—and may reveal some of the mysteries of evolution.
Dutch John is in the Flaming Gorge National Recreation Area. Below a massive dam erupts the Green River looking as perfect a western trout river as you could imagine. Above the dam is an equally massive reservoir. Weather systems are funky here as the east west Uinta mountain range butts in...
Like log crafting, they echo the work of the hand, and their colors are the colors of the forest, suiting them perfectly for log and timber rooms. Wealth in the Wilderness At the height of the Victorian age, before the Arts & Crafts movement blossomed, the barons of the Industrial ...
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Although few studies have directly elucidated the effects of high-temperature stress on mitochondrial genome expression levels, as an essential component of cellular metabolism, mitochondria should play a crucial role in this process. Indeed, the heart of rainbow trout (Oncorhynchus mykiss) held at ...