在计算复杂度理论内, ZPP（zero-error probabilistic polynomial time，零错误概率多项式时间）是一个与 机率图灵机 有关的的复杂度类。 这机器永远会给出正确的"是"或者"否"的答案。 这个机器平均运作的时间是多项式时间以内。 换句话说，有一个算法会在运作时使用一个完美随机的硬币，并且永远回传正确的答案（这种算法被称作 拉斯维加斯算法 （Las Vegas algorithm））。 对一个输入大小为n的问题，存在一个多项式p(n)，令平均的运作时间小于p(n)（有可能偶尔会超 …

Zinc protoporphyrin (ZPP) refers to coordination complexes of zinc and protoporphyrin IX. It is a red-purple solid that is soluble in water. The complex and related species are found in red blood cells when heme production is inhibited by lead and/or by lack of iron. [1]

Elevated ZPP results are seen in early and late iron deficiency, the anemia of chronic disease, chronic lead poisoning, and erythropoietic protoporphyria. Elevated bilirubin or riboflavin and hemolyzed, clotted, or improperly aliquoted specimens …

2009年12月4日 · The lag in ZPP elevation and decline compared to blood lead levels makes ZPP measurements useful for distinguishing between acute and chronic lead intoxication and may help to determine whether a mid-range blood lead level is likely to reflect prior higher-level exposure.

In this lecture we will look at some randomized complexity classes: RP, co RP, ZPP, and BPP. We begin with a (very brief) review of P and NP. Pointers are given to the appropriate sections of Motwani & Raghavan, denoted M&R, where

In complexity theory, ZPP (zero-error probabilistic polynomial time) is the complexity class of problems for which a probabilistic Turing machine exists with these properties: It always returns the correct YES or NO answer. The running time is polynomial in expectation for every input.

1999年9月1日 · The zinc protoporphyrin/heme (ZPP/H) ratio is a simple, accurate, and sensitive laboratory screening test that detects early iron depletion before the onset of anemia. The objective of this work was to evaluate this test in a primary pediatric practice setting.Methods..

Zinc Protoporphyrin (ZPP) - Zinc protoporphyrin (ZPP) accumulates in erythrocytes as a result of chronic lead absorption or iron deficiency anemia.

ZPP tries to wrap the Zephyr C-API in C++20 without causing to much runtime and/or memory overhead. The current state of ZPP is experimental/early alpha, things are still changing a lot, and the API is not stable what so ever. To add zpp to your own project just add the git repo to your west.yml manifest file like this;

The ZPP blood test measures the amount of zinc protoporphyrin that is present. There are two primary reasons why this test is ordered. 1. To determine if there has been lead exposure in adults. 2. To determine if there is an iron deficiency in children. Red blood cells generally contain a small amount of ZPP.