Comparable long-term survival outcomes after endoscopic and gastrectomy treatment of pT1acN0M0 gastric adenocarcinoma in patients who met the expanded criteria.

Background: Whether the Western pT1acN0M0 gastric cancer (GC) patients who met the Japanese expanded criteria could be the candidates for endoscopic treatment (ET) remains unclear because of unknown long-term survival outcomes.

Methods: A retrospective cohort study using data from the Surveillance, Epidemiology, and End Results (SEER) program was performed. The survival differences between pT1acN0M0 gastric adenocarcinoma patients who received ET or gastrectomy treatment (GT) were evaluated using multivariate survival analysis.

An anionic Zn-MOF composed of 1D columnar SBUs for highly CH/CH selective adsorption, dye adsorption and fluorescence sensing.

An anionic three-dimensional framework {(MeNH)[Zn(L)(ad)(μ-O)]·10DMF·11HO}(Zn-MOF, L = 4,4'-(3-aminopyridine-2,5-diyl)dibenzoic acid; ad = adeninate) with a column-layered structure was synthesized. Structural studies show that the Zn-MOF has octahedral cages [Zn(ad)(μ-O)], the adjacent cages are connected by O atoms to form 1D columnar SBUs, and every four SBUs are connected by L to form a square channel 3D framework. Gas adsorption studies show that the BET and Langmuir surface areas of Zn-MOF are 1370.

4D-printed pH sensing claw.

As an example of extending the functionality of analytical devices manufactured using four-dimensional printing (4DP), in this study we employed acrylonitrile butadiene styrene (ABS) thermoplastic filaments, poly(4-vinylpyridine) (P4VP)-incorporated ABS filaments, and multi-material fused deposition modeling three-dimensional printing (3DP) to fabricate a pH measurement device that underwent pH-dependent geometric changes. Upon immersion in a solution having a pH close to the value of pK of P4VP (ca. 5.

Solution Foaming-Treated 3D-Printed monolithic packing for enhanced solid phase extraction of trace metals.

Post-printing treatment is a promising means of enhancing the performance of devices manufactured using conventional three-dimensional printing (3DP) technologies. In this study we developed a post-printing solution foaming process-involving respective treatment with formic acid (60%, v/v) and sodium bicarbonate (5%, w/v) solutions to generate CO as a foaming agent-to increase the surface roughness and porosity of the polyamide 6 (PA6) monolithic packing in a multimaterial fused deposition modeling 3D-printed solid phase extraction (SPE) column, thereby enhancing the extraction of Mn, Co, Ni, Cu, Zn, Cd, and Pb ions from complicated real samples prior to their determination using inductively coupled plasma mass spectrometry. After optimizing the column fabrication process, the solution foaming treatment process, the extraction conditions, and the automatic analytical system, the 3D-printed SPE column incorporating the solution foaming-treated PA6 monolithic packing extracted these metal ions with 18.

[Improvement and application for ecological networks using landscape pattern and connectivity methods.].

In landscape ecology, the target species ecological network is often constructed by the least-cost path model (hereafter LCPM) to improve landscape connectivity among discrete habitats and to mitigate the negative impacts of habitat fragmentation. Nevertheless, the traditional ecological network method based on LCRM has insufficient understanding of landscape structure changes and ecological processes of research site. We used landscape pattern index and connectivity probability index to quantitatively evaluate the landscape structure and connectivity characteristics of the research area before and after the construction of the ecological network.

Safety and efficacy of computed tomography-guided dye localization using patent blue V for single lung nodule for video-assisted thoracoscopic surgery: a retrospective study.

Background: For invisible or impalpable lung nodules, video-assisted thoracoscopic surgery (VATS) has some limitations; some preoperative localization has been developed to overcome this limitation. This study aimed to assess the safety and efficacy of preoperative computed tomography (CT)-guided localization with patent blue V dye.

Methods: In this retrospective study, we examined patients with solitary pulmonary nodule undergoing preoperative CT-guided patent blue V dye localization from 2013 to 2015.