国際的な食品廃棄物取引のネットワークダイナミクス:COVID-19の混乱からの証拠
Navid Mohammadi1, Mehrdad Maghsoudi2
1College of Management, University of Tehran, Tehran, Iran.
Current research in food science
|February 13, 2026
まとめ
世界的な食品廃棄物管理貿易は,新興経済国が新しい同盟を結ぶことで,COVID-19以降の9%の減少を記録しました. これは,サプライチェーンの再調整と貿易ブロックの再編成を示し,循環経済戦略に影響を与えています.
科学分野:
- 環境経済学 環境経済学
- 国際貿易 国際貿易
- サプライチェーンマネジメント (サプライチェーンマネジメント)
背景:
- 世界的な食品廃棄物管理は,持続可能性にとって極めて重要です.
- COVID-19のパンデミックは,国際貿易パターンを大幅に混乱させた.
- 貿易のシフトを理解することは,レジリエントな食糧システムにとって不可欠です.
研究 の 目的:
- 世界的な食品廃棄物管理の貿易パターンを,COVID-19のパンデミック前後分析する.
- ネットワーク分析を用いて,国際貿易関係の構造的変化を検証する.
- 政策立案者に対して,堅実な食品廃棄物管理戦略に関する洞察を提供すること.
主な方法:
- 2015年から2024年までの世界銀行の輸出データを活用した.
- 貿易分析のための構築された,指向された,加重されたネットワーク.
- 適用された中心性メトリックとコミュニティ検出アルゴリズム.
主要な成果:
- パンデミック後の平均貿易量の9%の減少が観察され,サプライチェーンの再調整を示しています.
- 貿易におけるアメリカとヨーロッパ諸国の支配が継続していることを確認した.
- インドやブラジルのような新興経済を特定し,新たな戦略的同盟を結んだ.
- 貿易ブロックの再編を検知し,明確な新興経済のクラスターを設けました.
結論:
- 世界的な食品廃棄物管理貿易は,パンデミック後の構造的再編成を経験しました.
- 障害にもかかわらず,コアネットワークの完全性は維持されました.
- 発見は,レジリエントな食糧システムと循環経済の枠組みの開発を支援しています.
関連する概念動画
The Evidence for Evolution
48.4K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
48.4K
Internal Energy
36.9K
The total of all possible kinds of energy present in a substance is called the internal energy (U), sometimes symbolized as E. Suppose a system with initial internal energy, Uinitial, undergoes a change in energy (transfer of work or heat), and the final internal energy of the system is Ufinal. Change in internal energy equals the difference between Ufinal and Uinitial.
36.9K
Internal Energy
7.2K
The internal energy of a thermodynamic system is the sum of the kinetic and potential energies of all the molecules or entities in the system. The kinetic energy of an individual molecule includes contributions due to its rotation and vibration, as well as its translational energy. The potential energy is associated only with the interactions between one molecule and the other molecules of the system. Neither the system's location nor its motion is of any consequence as far as the internal...
7.2K
Internal Receptors
74.7K
Many cellular signals are hydrophilic and therefore cannot pass through the plasma membrane. However, small or hydrophobic signaling molecules can cross the hydrophobic core of the plasma membrane and bind to internal, or intracellular, receptors that reside within the cell. Many mammalian steroid hormones use this mechanism of cell signaling, as does nitric oxide (NO) gas.
74.7K
Protein Networks
4.6K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.6K
Network Covalent Solids
16.2K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
16.2K


