(E)-2-{3-[4-(Diphenyl­amino)styr­yl]-5,5-dimethyl­cyclo­hex-2-enyl­idene}­malono­nitrile

In the title compound, C31H27N3, the cyclo­hexene ring has an envelope configuration. In the crystal structure, there is an 34 Å3 void around the inversion center, but the low electron density (0.13 e Å−3) in the difference Fourier map suggests no solvent mol­ecule occupying this void. No hydrogen bonding is found in the crystal structure

非甾体抗炎药相关的消化性溃疡并发上消化道出血

Through discussion of 1 elderly case with multiple drug application of upper gastrointestinal bleeding (UGIB), we have summarized non-steroidal anti-inflammatory drugs (NSAIDs) are responsible for peptic ulcer bleeding, then discussed the relationship between drugs and peptic ulcer bleeding, suggested current researches of the factors such as age and Helicobacter pylori infection are bleeding risk to recurrent peptic ulcer complicated with UGIB. At last, we suggested the specifec therapeutic schedule and treat focus in different periods.通过讨论1例有应用多种药物病史的老年上消化道出血病例，分析了导致该患者发生消化性溃疡进而发生上消化道出血的致病因素主要与非甾体类消炎药密切相关，同时讨论了多种药物在致病中的主要作用与促发作用。该患者年龄大，既往有胃溃疡病史，同时有幽门螺杆菌感染则是易于再发消化性溃疡并发上消化道出血的易发因素。根据上述分析提出了具体的治疗方案以及不同时期的治疗重点

Zeolite Thin Film-coated Long Period Fiber Grating Sensor for Measuring Trace Chemical

This paper reports the development of a new zeolite thin film-coated long period fiber grating (LPFG) sensor for direct measurement of trace organic vapors. The sensor was fabricated by growing pure silica MFI-type zeolite thin film on the optical fiber grating by in situ hydrothermal crystallization. The sensor measures chemical vapor concentration by monitoring the molecular adsorption-induced shift of LPFG resonant wavelength in near infrared (IR) region. Upon loading analyte molecules, the zeolite\u27s refractive index changes in the close vicinity of the fiber index where the LPFG has a large response to achieve high sensitivity

Review on the development of kelp industry in Shandong province: A comparative perspective

Shandong and Fujian are two important provinces regarding the development of the seaweed industry, which shared three-fourths of the national seaweed yield in the year 2020. The present study has analyzed the overall situation of the seaweed industry in Shandong and Fujian provinces by comparing annual output, farming area, and species structure. The current status of Laminaria japonica cultivation in two provinces is also compared to the production process, industrial organization, progress, and innovation. On this foundation, the following development strategies are proposed for the seaweed industry in Shandong Province: (1) change the mindset based on the present industrial basis, (2) retain and transform innovative achievements, (3) enhance the services of associations and organizations and (4) construct brands based on current market share

Four new isoflavanones from Tadehagi triquetrum

Four new isoflavanones with isoprenoid units, named triquetrumones E-H (1–4), were isolated from the whole plants of Tadehagi triquetrum. The structures were elucidated on the basis of spectroscopic analyses, including application of MS, UV, IR, 1D and 2D NMR spectroscopic techniques. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: Supplementary material is available for this article at 10.1007/s13659-011-0033-5 and is accessible for authorized users