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Purpose To evaluate the survival outcomes of abdominal Q-M type B and type C2 radical hysterectomy (RH) for early-stage (IA1 (lymphovascular invasion)-IIA2) cervical cancer. Patients and methods Based on this multicenter, retrospective cohort study on the clinical diagnosis and treatment for cervical cancer in China (Four C), the survival outcomes of abdominal type B and type C2 RH for early-stage cervical cancer were compared under real-world and matched cohort study conditions. Results In total, 46,313 cases were included in the Four C database, among whom 20,018 underwent abdominal type B or type C2 RH. In the real-world study, no differences were found in the 5-year overall survival (OS) between the type B group (n=15,471) and type C2 group (n=4547), but the 5-year disease-free survival (DFS) was lower in the type C2 group (82.1 vs 84.8%, hazard ratio: 1.144). Based on the inclusion criteria, 9135 cases were included and the type C2 group (n=1818) was found to have a lower 5-year OS and DFS (OS: 89.5 vs 92.0%, hazard ratio: 1.393; DFS: 84.3 vs 87.4%, hazard ratio: 1.342). Subsequently, 1799 cases from each group were matched and the type C2 group had a lower 5-year DFS (84.6 vs 88.4%, hazard ratio: 1.332). Upon further analysis of the subgroups, the type C2 group had a lower 5-year OS and DFS (OS: 90.3 vs 93.8%, hazard ratio: 1.522; DFS: 85.2 vs 89.4%, hazard ratio: 1.439). Conclusion Q-M type B RH could be used for the treatment of stage IA1 (lymphovascular invasion)-IIA2 cervical cancer.

The pre-oxidized fibers were carbonized at the temperature ranging from 400 to 1300 °C for 1 h. The microwave absorption properties of carbon fibers (CFs) were examined in the frequency range of 2–...

In this work, the graphite nanoplatelets/carbon composites were fabricated from graphite nanoplatelets and pitch powders by a hot-pressing technology followed by carbonization and graphitization. The XRD and pole figure results show that the incorporation of pitch induces the decrease of size (La) and orientation degree of graphitic crystallites, while the in-plane thermal conductivity of graphitized sample is increased with the increasing pitch content up to 6 wt.%, achieving a maximum value of 405 W/m K. The pitch binders are filled into the voids to bridge two or more graphite nanoplatelets particles together to form extra thermal paths, which makes a great contribution to the enhancement of thermal conductivity. A thermal conductivity model for the graphitized composites is constructed based on a bridging mechanism, and the predicted results fit well with the experimental results.

TiO2/C nanospheres with diameter of 300–400 nm were synthesized by controlled thermal decomposition of titanium glycolate spheres in inert atmosphere. The effect of the calcination temperature and atmosphere on the structure and composition of the product are investigated. The products obtained by calcination of the precursor in nitrogen at 500°C consist of anatase and rutile nanoparticles, and amorphous carbon that is in situ generated from the organic components of glycolate precursor. When used as anode material for lithium-ion batteries, the as-prepared TiO2/C nanocomposite delivers a capacity of 166 mAh/g after 250 charge/discharge cycles at a current rate of 0.2 C and give a good rate capability. The native carbon not only improves the local conductivity but also prevents the aggregation and growth of TiO2 nanoparticles during calcination, allowing efficient electronic conductivity and Li ion diffusion.

In this work, graphite flake-carbon composites were fabricated from natural graphite flake and spinning pitch by a hot-pressing technique at 500°C and 10 MPa. The X-ray pole figure measurements show that the orientation degree of graphitized composite is higher than that of hot-pressed and carbonized composite and presents a descending tendency from 74.4 to 71.2% when the pitch content increases from 4 to 14 wt.%. A reducing trend of d002 and an increasing tendency of the average crystallite diameter (La), crystallite stack height (Lc) and degree of graphitization (g) can also be observed when pitch fraction increases from 4 to 16 wt.%. The apparent density and thermal conductivity in the direction perpendicular to the hot-pressing direction of graphitized composite with 16 wt.% of binder all achieve maximum values, 1.930 g/cm3 and 485 W/m K, respectively.