Sadhu—On the Pathway of Luxury Sustainable Circular Value Model

Purpose: High-value care is becoming increasingly important as the United States shifts toward a more sustainable health care system. Lifestyle medicine (LM) may be the highest-value model of care. Surprisingly, however, it is taught in a minority of medical schools. In this article, we describe a pilot project of introducing a brief LM course taught within the Mayo Clinic Alix School of Medicine in Arizona. The main purpose of the course was to introduce the students to LM as a specialty practice and to provide students with foundational knowledge of the pillars of LM. Results: Students reported improved personal health habits and increased confidence in LM competencies.

Download Full-text

A Profit Distribution Model of Reverse Logistics Based on Fuzzy DEA Efficiency—Modified Shapley Value

Sustainability ◽

10.3390/su13137354 ◽

2021 ◽

Vol 13 (13) ◽

pp. 7354

Author(s):

Jiekun Song ◽

Xiaoping Ma ◽

Rui Chen

Keyword(s):

Shapley Value ◽

Reverse Logistics ◽

Service Providers ◽

Third Party ◽

Output Data ◽

Profit Distribution ◽

Logistics Service ◽

Input And Output ◽

Value Model ◽

Fuzzy Dea

Reverse logistics is an important way to realize sustainable production and consumption. With the emergence of professional third-party reverse logistics service providers, the outsourcing model has become the main mode of reverse logistics. Whether the distribution of cooperative profit among multiple participants is fair or not determines the quality of the implementation of the outsourcing mode. The traditional Shapley value model is often used to distribute cooperative profit. Since its distribution basis is the marginal profit contribution of each member enterprise to different alliances, it is necessary to estimate the profit of each alliance. However, it is difficult to ensure the accuracy of this estimation, which makes the distribution lack of objectivity. Once the actual profit share deviates from the expectation of member enterprise, the sustainability of the reverse logistics alliance will be affected. This study considers the marginal efficiency contribution of each member enterprise to the alliance and applies it to replace the marginal profit contribution. As the input and output data of reverse logistics cannot be accurately separated from those of the whole enterprise, they are often uncertain. In this paper, we assume that each member enterprise’s input and output data are fuzzy numbers and construct an efficiency measurement model based on fuzzy DEA. Then, we define the characteristic function of alliance and propose a modified Shapley value model to fairly distribute cooperative profit. Finally, an example comprising of two manufacturing enterprises, one sales enterprise, and one third-party reverse logistics service provider is put forward to verify the model’s feasibility and effectiveness. This paper provides a reference for the profit distribution of the reverse logistics.

Download Full-text

Controlling Safety of Artificial Intelligence-Based Systems in Healthcare

Symmetry ◽

10.3390/sym13010102 ◽

2021 ◽

Vol 13 (1) ◽

pp. 102

Author(s):

Mohammad Reza Davahli ◽

Waldemar Karwowski ◽

Krzysztof Fiok ◽

Thomas Wan ◽

Hamid R. Parsaei

Keyword(s):

Artificial Intelligence ◽

Rating Scale ◽

Black Box ◽

Healthcare Industry ◽

Emergency Plans ◽

Controlling System ◽

Box Models ◽

Key Dimensions ◽

Value Model ◽

And Control

In response to the need to address the safety challenges in the use of artificial intelligence (AI), this research aimed to develop a framework for a safety controlling system (SCS) to address the AI black-box mystery in the healthcare industry. The main objective was to propose safety guidelines for implementing AI black-box models to reduce the risk of potential healthcare-related incidents and accidents. The system was developed by adopting the multi-attribute value model approach (MAVT), which comprises four symmetrical parts: extracting attributes, generating weights for the attributes, developing a rating scale, and finalizing the system. On the basis of the MAVT approach, three layers of attributes were created. The first level contained six key dimensions, the second level included 14 attributes, and the third level comprised 78 attributes. The key first level dimensions of the SCS included safety policies, incentives for clinicians, clinician and patient training, communication and interaction, planning of actions, and control of such actions. The proposed system may provide a basis for detecting AI utilization risks, preventing incidents from occurring, and developing emergency plans for AI-related risks. This approach could also guide and control the implementation of AI systems in the healthcare industry.

Download Full-text

Solution of a two-point boundary value model of immobilized enzyme reactions, using an S-system-based root-finding method

Applied Mathematics and Computation ◽

10.1016/s0096-3003(01)00008-x ◽

2002 ◽

Vol 127 (2-3) ◽

pp. 289-310 ◽

Cited By ~ 2

Author(s):

Fumihide Shiraishi ◽

Eberhard O. Voit

Keyword(s):

Immobilized Enzyme ◽

Boundary Value ◽

Point Boundary ◽

Enzyme Reactions ◽

Root Finding ◽

Value Model ◽

Root Finding Method ◽

Finding Method

Download Full-text

The Theory and Prevention of Undamped Aeroplane Nosewheel Shimmy

Aeronautical Quarterly ◽

10.1017/s0001925900010234 ◽

1956 ◽

Vol 7 (3) ◽

pp. 193-220

Author(s):

D. Williams

Keyword(s):

Mathematical Theory ◽

The Other ◽

Linkage Mechanism ◽

Model Experiments ◽

Good Feature ◽

The One ◽

Value Model ◽

Elastic Constraint

SummaryThe mathematical theory of nosewheel shimmy is given, with particular reference to twin nosewheel assemblies. It is shown that a sovereign remedy for shimmy is to make the castor length greater than what is here called the “ creep distance,” which in practice is found to be approximately equal to the tyre radius. Lateral flexibility of the oleo leg is disadvantageous but elastic constraint at the pivot is a good feature. The one necessitates an increased castor for stability while the other allows a smaller castor. It is also shown how, by the use of a compact linkage mechanism, the effective castor length can be made independent of the wheel-leg offset and can have any desired value. Model experiments that confirm the theoretical conclusions are described.

Download Full-text