Responsivity Enhanced NMOSFET Photodetector Fabricated by Standard CMOS Technology

Increasing the responsivity is one of the important issues for a photodetector. In this paper, we demonstrate an improved NMOSFET photodetector by using deep-n-well (DNW) structure which can improve the responsivity of the photodetector significantly. The experimental results show that the responsivity can be enhanced greatly by the DNW structure and is much larger than the previous work when DNW is biased with 0.5 V, while the dark current exhibits almost no increase. Further characterization indicates that the diode formed by the bulk and DNW can efficiently absorb photons and has a large gain factor of the photocurrent especially under low light condition, which gives a more promising application for the detector to detect the weak light

Challenges and Opportunities in Parent-Teacher Relationships in Contemporary China

This study explores how market economy affects parent-teacher relationships in China. Guided by Bourdieu’s (1986) capital theory, we interviewed twenty-one teachers and twenty parents in China. The study reveals that the market economy has impacted changes in parent-teacher relationships in several aspects. First, modern technology such as the Internet and WeChat has facilitated communication between parents and teachers with fast pace and convenience. Moreover, the study makes an original contribution to the field by challenging stereotyping assumptions towards Chinese parents who are either completely not involved or partially involved in their child’s education at home. The study shows that contemporary Chinese parents are actively involved in their children’s education both at home and at school. Furthermore, the market economy has shaken the high social status that teachers enjoyed in the past. As a result, parents prefer to adopt pragmatic approaches to parent-teacher relationships. Finally, the urban, middle-class parents whose social capital, alongside cultural, symbolic and economic capital enable them to mobilize their social networks in interacting with the school. They appear to be more likely than previous generations of Chinese parents to challenge teachers’ authority, and there have been more serious conflicts between parents and teachers. The study focuses on China, but these rare insights highlight current and emerging dangers to parent-teacher engagement with relevance to many other countries

Effects of verbenalin on prostatitis mouse model

AbstractThe aim of this study was to observe the treatment characteristics of verbenalin on a prostatitis mouse model. Give Xiaozhiling injection in the prostate locally to make a prostatitis mouse model. High, medium and low doses of verbenalin were each given to different mouse groups. The amount of water was determined in 14th, 28th. The number of white cells and lecithin corpuscle density in prostatic fluid were determined. Morphological changes in the prostate, testis, epididymis and kidney were detected. Compared with the model control group, the mice treated with high, medium and low doses of verbenalin had significantly increased amounts of water, and prostate white blood cell count and prostate volume density (Vv) were decreased significantly, the density of lecithin corpuscle score increased, and pathologic prostatitis changes were significantly reduced. Pathological change in the testis was significantly reduced and the change in the epididymis was obviously reduced. The thymic cortex thickness and the number of lymphocytes increased significantly and could reduce the renal pathological changes in potential. Verbenalin has a good therapeutic effect on the prostatitis mouse model

The Influence of Shanghai’s Population Structure on City’s Housing Demand and the Solution for Housing Supply

In a city like Shanghai, where one of the biggest and fastest growing of both the population and quantity of housing demand and supply in the world exists, the need to estimate the influence of population transition on housing demand becomes a vital task. This research presented the characteristics of Shanghai’s population transition in future and then housing demand in future is forecasted; finally, the strategy to control the housing market is presented. The results revealed that the population characteristics, the housing demand and the control strategy has interaction relationship with each other: the population characteristics and trend such as population quantity and structure lay in five points, which decides the housing demand in six ways and then it will decide the six strategies needed to control the housing market in Shanghai; while the latter ones will adapt to the variation of the former ones.Key words: Influence; Population transition; Housing demand and supply; Housing market; Shangha