Objective Analyzing the distribution of policy attention in policy documents concerning county-level medical community at the provincial level in China,provides insights for enhancing the governance effectiveness and service capacity of these consortiums.Methods Guided by policy instrument theory,it conducted coding and quantitative analysis of county-level medical community policy documents from all provinces(autonomous regions and municipalities)in China using NVivo 11 software.Results The policy instrument structure showed imbalance:environmental,supply-side,and demand-side instruments accounted for 42.2%,36.4%,and 21.2%respectively.Organizational management and human resource support received the highest attention,while innovation environment optimization and performance evaluation mechanisms were significantly inadequate.Pilot regions achieved progress through resource integration and institutional innovation,the overall development trend is positive.Conclusion Optimizing policy attention allocation is key to enhancing county-level medical community effectiveness.Recommendations include strengthening systemic synergy among policy instruments,increasing application of demand-side tools,and formulating differentiated policies based on regional heterogeneity to improve governance capacity and service delivery.

Objective Analyzing the distribution of policy attention in policy documents concerning county-level medical community at the provincial level in China,provides insights for enhancing the governance effectiveness and service capacity of these consortiums.Methods Guided by policy instrument theory,it conducted coding and quantitative analysis of county-level medical community policy documents from all provinces(autonomous regions and municipalities)in China using NVivo 11 software.Results The policy instrument structure showed imbalance:environmental,supply-side,and demand-side instruments accounted for 42.2%,36.4%,and 21.2%respectively.Organizational management and human resource support received the highest attention,while innovation environment optimization and performance evaluation mechanisms were significantly inadequate.Pilot regions achieved progress through resource integration and institutional innovation,the overall development trend is positive.Conclusion Optimizing policy attention allocation is key to enhancing county-level medical community effectiveness.Recommendations include strengthening systemic synergy among policy instruments,increasing application of demand-side tools,and formulating differentiated policies based on regional heterogeneity to improve governance capacity and service delivery.

Positron emission tomography (PET) has become basic support equipment in clinical and many other scientific research fields and has been a hot research field at present. Tomography reconstruction algorithm is a key component of PET, and most PETs use statistical iterative reconstruction algorithms from sinograms data currently. However, tomography reconstruction from list-mode data possesses many unique advantages, and it has caused great attention and is in the process of rapid development and improvementin recently. We eventually achieved list-mode tomography reconstruction in this paper, using experimental data of small animal PET scanner Eplus-166, exploiting S-LMEM algorithm and orthogonal distance-based ray-tracer. The results demonstrated that image resolution and contrast recovery achieved inherent properties of the scanner and on-the-fly ray-tracing methods is feasible for dynamic reconstruction.
Algorithms ; Humans ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional ; methods ; Models, Theoretical ; Positron-Emission Tomography ; methods