生物数学

The main goal of this presentation is to give a theoretical explanation and a mathematical model for computer simulation of mandalas, based on the mechanisms of biochemical reactions in a human brain and on discrete chaotic dynamics.

这个陈述的主要目的是要给出一种理论上的解释和建立一个计算机曼荼罗仿真数学模型，基于人脑的生物化学反应机制和基于在离散、混乱动力学之上。

In this dissertation, after a brief introduction to the biologic background of the primate visual system, the development histor y , the current research status and shortcomings of SC, a simple mathematic description to SC was given also.

本文首先回顾了初级视觉系统的生物背景知识以及 SC 问题的发展历史、研究现状和存在问题，并对 SC 问题进行了简单的数学描述。

Subjects: biotechnology, botany, cell biology, cell physiology, didactic drawing, ecology, evolution and ethology, genetics, ICT, invertebrates, mathematics, life sciences, environmentology, physics, plant anatomy, vertebrates, food and health.

主题：生物技术，植物学，细胞生物学，细胞生理学，教学绘画，生态，进化和动物行为学，遗传学，信息和通信技术，无脊椎动物，数学，生命科学，环境学，物理学，植物解剖学，脊椎动物，食品和保健。

Entropy and biodiversity are mathematically equivalent, making tropical forests the most entropic environments on Earth.

图1：熵和生物多样性在数学上是等价的，它们都使得热带雨林成为地球上的最大熵的环境

Consequently, a mathematical model is established to explain the effects of oil organics on biotreatment of source water.

相应的数学模型较全面地反映了石油污染水源水中石油污染物对水源水的生物处理的影响。

What the logic and mathematics are in the sense of biomedicine?

在生物医学意义下的逻辑学和数学是什么？

There are three main features that characterize beautiful faces: the geometric feature of bilateral symmetry, the mathematical feature of averageness, and the biological feature of secondary sexual characteristics.

美丽的面孔具有三个主要特征：左右对称的几何特征、平均化的数学特征和第二性征的生物特征，这些都表明他们在基因与发展上更健康。

Secondary sexual characteristics. Unlike the geometric concept of bilateral symmetry and the mathematical concept of averageness, the biological concept of secondary sexual characteristics differ for the sexes.

第二性征：与几何上左右对称的概念、数学上平均值的概念不同，生物上的第二性征概念是有性别差异的。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。