The Impact of China's Family Floating Population on the Participation of Medical Insurance in the Inflow Areas.

Background: With the transformation of China's economy and society, the floating population has also shown a new development trend, from individual migration to co-migration with family members. In 2020, among the 376 million floating population, the population flowing to cities and towns was 330 million, accounting for nearly 88.1%. The family mobility of the floating population is not just a simple personal gathering or geographical migration, but a profound adjustment of the living environment, social interaction and the interests of family members. Migrants no longer simply play the role of " urban passers-by", but gradually move with spouses, children, parents, and even settle in the city, which will inevitably produce different public service and social security needs. Objective: To explore the impact of floating population's familyization on the participation of medical insurance in the inflow areas. Methods: This study adopted the form of non-systematic literature review. The key words were floating population and medical insurance. The related analysis of PubMed, Embase, CNKI, Wanfang, and VIP databases were reviewed and summarized. Results: Due to the flow between domestic immigrants and regions, their medical insurance is difficult to be guaranteed. The domestic floating population's demand for health services is increasing, but the coverage of medical services provided by medical insurance is not comprehensive enough. Conclusion: It is necessary to integrate the medical insurance system and improve the adaptability of medical insurance to family mobility; protect the welfare needs of migrant families and increase their willingness to participate in medical insurance at the destination; pay attention to the interaction and integration of floating population families, understand and guide them to participate in the status quo of medical insurance, and improve the status quo.

Multiphase contrast-enhanced computed tomography imaging features of salivary duct carcinoma: differentiation from other salivary gland malignancies.

OBJECTIVE: The aim of this study was to investigate the imaging features of salivary duct carcinoma (SDC) with multiphase contrast-enhanced computed tomography (CECT) and to compare them with those of mucoepidermoid carcinoma (MEC), adenoid cystic carcinoma (ACC), and acinic cell carcinoma. STUDY DESIGN: A total of 63 patients with histologically diagnosed salivary gland malignancies underwent preoperative multiphase CECT. Clinical information, location, size, mass pattern, enhancement pattern, borders, invasion of adjacent tissues, and lymph node metastasis were evaluated. Computed tomography (CT) number attenuation patterns were calculated. RESULTS: SDCs were significantly more common in males and in the parotid gland (P ≤ .018). They were more likely to invade into adjacent tissues and metastasize to lymph nodes (P ≤ .032). Six SDCs (66.7%) had comedonecrosis, as detected on histopathologic examination, and 3 lesions presented cribriform necrosis on CECT. CT numbers during delayed-phase scanning were significantly higher in SDC than in ACC (P = .031). Significant differences were discovered between MEC and ACC for CT numbers during arterial-phase scanning (P = .047) and in the ratio of CT numbers (P = .018). CONCLUSIONS: SDC exhibits some specific CT features, and multiphase CECT imaging is useful in the differential diagnosis of salivary gland malignancies.

Radiological imaging of florid intravascular papillary endothelial hyperplasia in the mandibule: case report and literature review.

Intravascular papillary endothelial hyperplasia was a rare benign vascular proliferative process as a result of papillary proliferation of the endothelial cells within the vessels. To our knowledge, we reported the second case occurring in the madibule, and the first reported in 1984 in the literature. We discussed manifestations of multislice computed tomography and panoramic radiography about the lesion and relevant literature was reviewed.

Morphology transformation via pH-triggered self-assembly of peptides.

Three flexible peptides (P1: (C(17)H(35)CO-NH-GRGDG)(2)KG; P2: (Fmoc-GRGDG)(2)KG; P3: (CH(3)CO-NH-GRGDG)(2)KG) self-assembled to form a variety of morphologically distinct assemblies at different pHs. P1 formed nanofibers at pH 3, then self-assembled into nanospheres with pH up to 6 and further changed to lamellar structures when the pH value was further increased to 10. P2 aggregated into an entwined network structure at pH 3, and then self-assembled into well-defined nanospheres, lamellar structures, and vesicles via adjusting the pH value. However, P3 did not self-assemble into well-ordered nanostructures, presumably due to the absence of a large hydrophobic group. The varying self-assembly behaviors of the peptides at different pHs are attributed to molecular conformational changes. These self-assembled supramolecular materials might contribute to the development of new peptide-based biomaterials.