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Ethical Standards I

Ethical Standards I

The American Nurses Association (ANA) created and implemented the first nationally accepted Code of Ethics for Nurses with Interpretive Statements. The Code of Ethics is a living document regularly updated by the ANA and establishes an ethical standard that is non-negotiable for nurses in all roles and settings.
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The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
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Ethical Standards II

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Related Experiment Videos

A privacy-preserving distributed protocol for secure data sharing in untrusted supply chain.

Maryam Shafiei¹, Alireza Hashemi Golpayegani²

¹Department of Computer Engineering, Amirkabir University of Technology, Tehran, Iran.

Scientific Reports

|May 18, 2026

Summary

This study introduces a novel hierarchical model for secure data sharing in supply chains, enhancing operational efficiency through balanced privacy and visibility. The approach ensures secure collaboration without central authorities, improving data integrity and confidentiality.

Keywords:

Data access Privacy-preserving Secure information sharing Supply chain management

Related Experiment Videos

Area of Science:

Supply Chain Management
Information Security
Distributed Systems

Background:

Modern supply chains demand robust information sharing and collaboration.
Existing solutions struggle to balance privacy, visibility, and control in distributed environments.
Centralized or blockchain-based systems present scalability and integration challenges.

Purpose of the Study:

To propose a hierarchical model for secure data storage, access, and sharing in distributed supply chains.
To develop a protocol for managing authentication, authorization, and distributed access control.
To enable private yet visible information exchange while preserving confidentiality, integrity, and anonymity.

Main Methods:

A hierarchical data storage and sharing model.
A secure protocol for authentication, authorization, and distributed access control.
Formal analysis (AVISPA verification) and simulation-based experimental evaluations.

Main Results:

The proposed design enables secure information exchange via metadata and hash propagation.
Protocol feasibility and security properties were formally verified.
Scalability is linked to balanced node connectivity, ensuring stable throughput and low latency.

Conclusions:

The approach offers a favorable balance between security, functionality, and costs.
It provides a robust architectural and protocol foundation for secure distributed supply chain information sharing.
This model addresses limitations of existing centralized and blockchain-based systems.