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相关概念视频

Combinatorial Gene Control02:33

Combinatorial Gene Control

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Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
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Levels of Use of a GIS01:29

Levels of Use of a GIS

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Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
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Thematic Layering in GIS01:30

Thematic Layering in GIS

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In the past, planning projects such as schools or public facilities required extensive manual effort to gather and compile data. Information such as property boundaries, soil characteristics, road networks, zoning regulations, and flood zones had to be sourced individually from courthouses, utility providers, and registry offices. Assembling these datasets into a coherent format often took several months, delaying project timelines.The introduction of Geographic Information Systems (GIS)...
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Multicompartment Models: Overview01:14

Multicompartment Models: Overview

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Multicompartment models are mathematical constructs that depict how drugs are distributed and eliminated within the body. They segment the body into several compartments, symbolizing various physiological or anatomical areas connected through drug transfer processes such as absorption, metabolism, distribution, and elimination.
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
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Introduction to GIS01:28

Introduction to GIS

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Geographic Information Systems (GIS) are tools for storing, analyzing, and displaying spatial data alongside related attributes. Unlike traditional information systems that address general queries, GIS incorporates spatial components, enabling users to answer "where" and "how far." For example, GIS can process housing data linked to geographic locations like zip codes, allowing insights into population density or housing distribution through thematic maps.GIS integrates technologies such as...
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Multi-input and Multi-variable systems01:22

Multi-input and Multi-variable systems

106
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence...
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Updated: Jul 8, 2025

Mycorrhizal Maps as a Tool to Explore Colonization Patterns and Fungal Strategies in the Roots of Festuca rubra and Zea mays
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Mycorrhizal Maps as a Tool to Explore Colonization Patterns and Fungal Strategies in the Roots of Festuca rubra and Zea mays

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组合地图,一个模拟农林系统的新框架.

Laëtitia Lemiere1,2,3, Marc Jaeger2,3, Marie Gosme1

  • 1ABSys, Univ Montpellier, CIHEAM-IAMM, CIRAD, INRAE, Institut Agro, Montpellier, France.

Plant phenomics (Washington, D.C.)
|December 18, 2023
PubMed
概括
此摘要是机器生成的。

本研究引入了一种使用组合图表来表示复杂农林系统的新模型. 这个框架统一了结构,功能和动态,以便更好地分析和预测农业生态系统.

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Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
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Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM
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Mycorrhizal Maps as a Tool to Explore Colonization Patterns and Fungal Strategies in the Roots of Festuca rubra and Zea mays

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Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
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科学领域:

  • 农业生态学 农业生态学
  • 系统生态学 系统生态学
  • 计算生态学计算生态学

背景情况:

  • 农林系统在结构和功能组件之间表现出复杂的,长期的相互作用.
  • 当前的数值模型经常孤立结构或功能,无法捕捉它们的相互依赖.

研究的目的:

  • 开发一个统一的框架来代表农林系统,整合结构和功能.
  • 在农业生态系统规模上概念化结构-功能关系,使用一种新的建模方法.

主要方法:

  • 使用组合图,一种多维图形,用于系统表示.
  • 开发了一个基于Python的框架实现,可在GitHub上使用.
  • 证明了模型能够表示多尺度结构和时间演变的能力.

主要成果:

  • 组合地图框架成功地模拟了农林系统的结构和动态.
  • 该方法允许对农业生态系统复杂性的多尺度和时间表示.
  • Python 实现为农业林业研究提供了一个实用的工具.

结论:

  • 组合地图为描述农林系统提供了统一和通用的方法.
  • 这个框架可以与预测生态系统服务的其他模型集成.
  • 该模型为农业生态系统的不同表示方法之间的翻译提供了便利.