Saikosaponin (SS) A is a compound with various pharmacological properties and is easily degraded into SS-B1 and SS-G under acid conditions. In the present work, two new degradation products of SS-A, formed under acid hydrolytic conditions, were detected and isolated using analytical and semi-preparative liquid chromatography technology; furthermore, their structures were characterized as hydrox...

PURPOSE To measure the effects from a single vectored thermal pulsation treatment of the meibomian glands on dry eye signs and symptoms in patients who tested positively versus negatively for novel Sjögren's syndrome (SS) biomarkers. METHODS The retrospective study included the deidentified data of 102 eyes of 59 patients with dry eye and meibomian gland dysfunction (MGD), who were also teste...

Brain derived neurotrophic factor (BDNF) increases the levels of somatostatin (SS) and its mRNA. To test the hypothesis that the regulation of SS synthesis by BDNF occurs at the transcriptional level and requires specific promoter sequences, cerebrocortical and PC12trkB neurons were transiently transfected with different constructs of the SS promoter fused to the luciferase and CAT reporter gen...

this article emphasizes the findings of a survey conducted to find out the views of students on the environmental education (ee) in iranian secondary school (ss) curriculum. a total of six hundred students from forty secondary schools, randomly selected ss from five zones in tehran city responded to the questionnaire. two research questions were asked while two hypotheses were tested in this st...

This study was designed to 6nswer two questions: I) Is the systematic desensitization of test anxiety effective with secondary school students; 2) Is relaxation per se as useful a technique as systematic desensitization. High test anxious secondary school students were assigned to one of two experimental conditions, desensitization or relaxation, and met for 20 minutes daily for a period of 6 w...

The Savannah River National Laboratory has evaluated several options for the disposition of stainless steel (SS)–clad plutonium metal alloy. One technologies under consideration is alloying material with SS. resulting SS-Pu alloy would be a nonproliferable waste form consisting secondary Pu composition region microencapsulated in refractory Two 8-kg ingots were made at SS-1.8Zr-0.4Pu alloys (in...

Abstract Tungsten (W) and stainless steel (SS) are well known for the high melting point good corrosion resistance respectively. Bimetallic W–SS structures would offer potential applications in extreme environments. In this study, a SS?W?SS sandwich structure is fabricated via special laser powder bed fusion (LPBF) method based on an ultrasonic-assisted deposition mechanism. Material characteri...

The impact of aerosol composition on cloud condensation nuclei (CCN) activity were analyzed in this study based on field experiments carried out at downtown Tianjin, China in September 2010. In the experiments, the CCN measurements were performed at supersaturation (SS) of 0.1 %, 0.2 % and 0.4 % using a thermal-gradient diffusion chamber (DMT CCNC), whereas the aerosol size distribution and com...