Apatinib monotherapy for early non-small cell lung cancer: a case report.

Stage I non-small cell lung cancer (NSCLC) accounts for about 15% of incident cancer cases. Prognosis is poor, with a metastasis and recurrence rate of 38% within 2 years of surgery and an overall 5-year survival rate of 54-60%. Here, we report successful apatinib monotherapy of early NSCLC in a patient who had declined surgery, radiofrequency ablation, and immunotherapy.

Pore Structure Evolution and Failure Mechanism of Limestone in the Taiyuan Formation of the Ordos Basin under High Temperature.

The study on the destruction of the limestone microstructure after high-temperature treatment has a significant value in the airtightness and safety of underground high-temperature geotechnical engineering. In order to truly simulate the influence of the underground high-temperature environment on limestone, taking seven groups of limestones of the Taiyuan Formation in the Ordos Basin as examples, we carried out a high-temperature (25-1200 °C) heating experiment of limestone in an argon atmosphere. The pore structure of limestone after the high temperature is studied based on scanning electron microscopy (SEM), mercury intrusion porosimetry (MIP), porosity, and permeability, and the change in the fractal dimension of the limestone pore structure was discussed based on the thermodynamic fractal theory, combined with X-ray diffraction (XRD) and thermogravimetry differential scanning calorimetry (TG-DSC), the variation of mineral composition with temperature is characterized, and the evolution mechanism of the limestone microstructure under high temperature is discussed.

Dissociation mechanism of methane hydrate by CaCl: an experimental and molecular dynamics study.

The formation of gas hydrate is a serious threat to the safe and effective completion of deepwater drilling and transportation operations, although it is considered as a potential energy resource. The inorganic salts are generally used as thermodynamic inhibitors; CaCl as a common additive in drilling fluids exhibits unique properties. In this study, we explored the dissociation mechanism of CH hydrate in CaCl solutions at the macroscopic and microscopic scale using experiment and molecular dynamics (MD) simulation.

Iterative Cup Overlapping: An Efficient Identification Algorithm for Cage Structures of Amorphous Phase Hydrates.

Molecular dynamics studies have revealed that the nucleation pathway of clathrate hydrates involves the evolution from amorphous to crystalline hydrates. In this study, complete cages are further classified into the standard edge-saturated cages (SECs) and nonstandard edge-saturated cages (non-SECs). Centered on studying the structure and evolution of non-SECs and SECs, we propose a novel and efficient algorithm, iterative cup overlapping (ICO), to monitor hydrate nucleation and growth in molecular simulations by identifying SECs and discuss possible causes of the instability of non-SECs.

Unraveling nucleation pathway in methane clathrate formation.

Methane clathrates are widespread on the ocean floor of the Earth. A better understanding of methane clathrate formation has important implications for natural-gas exploitation, storage, and transportation. A key step toward understanding clathrate formation is hydrate nucleation, which has been suggested to involve multiple evolution pathways.

Controllable syngas production on gold nanowires/nickel foam electrode in non-aqueous system.

A hierarchical electrode is prepared with Au nanowires grown on nickel foam. With large specific active surface area, it is used for producing syngas (H/CO) with controllable ratio, through electrochemical process in DMF. The synthetic innovation lies in the use of 3-cyanopropyltriethoxysilane, to achieve the adsorption of appropriate amount of Au seeds for the one-dimensional growth of ultrathin Au nanowires (d ≈ 5 nm).

Dissipative Particle Dynamics Simulation on Vesicles Self-Assembly Controlled by Terminal Groups.

Block copolymer vesicles have been widely used in the field of drug delivery, microreactors, and cell membrane mimetics. Introducing terminal groups to the block copolymer can control the structures of vesicles, which is important for improving the application of vesicles. In this paper, the effects of terminal groups on the structure of vesicles were studied by dissipative particle dynamics simulation.

The molecular mechanism of the inhibition effects of PVCaps on the growth of sI hydrate: an unstable adsorption mechanism.

The inhibition properties of kinetic hydrate inhibitor (KHI) molecules on the dynamic growth of a hydrate/water interface are investigated by using molecular dynamics simulations. The shape of the hydrate interface is transformed from laminar to funnel by PVCaps. Results indicate that the inhibition effects not only depend on the adsorption capacity which was believed to determine inhibition, but also on the fact that PVCaps must have some non-binding-hydrate sites that don't tend to combine with hydrate.

A molecular dynamic study on the dissociation mechanism of SI methane hydrate in inorganic salt aqueous solutions.

Gas hydrate is not only a potential energy resource, but also almost the biggest challenge in oil/gas flow assurance. Inorganic salts such as NaCl, KCl and CaCl are widely used as the thermodynamic inhibitor to reduce the risk caused by hydrate formation. However, the inhibition mechanism is still unclear.