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| 1 | Expression and localization of Smadl, Smad2 and Smad4 proteins in rat testis during postnatal development显示文摘Aim:To study the expression and regulation of Smad1,Smad2 and Smad4 proteins(intracellular signaling molecules of transforming growth factor-β family)in rat testis during postnatal development.Methods:The whole testes were collected from SD rats aged 3,7,14,28 and 90(adults)days.The cellular localization and developmental changes were examined by immunohistochemistry ABC method with the glucose oxidase-DAB-nickel enhancement technique.Quantitative analysis of the immunostaining was made by the image analysis system.The Smads proteins coexistence in the adult rat testis was tested by the double immune staining for CD14-Smad4 and Smad2-Smad4.The protein expression of Smad during rat testicular development was examined by means of Western blots.Results: Smadl,Smad2 and Smad4 were present throughout testicular development.The immunostaining of Smad1 and Smad2 were present in spermatogenic cells.A positive immunoreactivity was located at the cytoplasm,but the nucleus was negative,Smadl was immunolocalized at the d14,d28 and adult testes,while Smad2,at the d7,d14,d28 and adult testis.There was positive immunoreaction in the Sertoli cells and Leydig cells as well.The immunolocalization of Smad4 was exclusively at the cytoplasm of Leydig cells and the nuclei were negative throughout the testicular development.No expression was detected in the germ cells.The results of image and statistical analysis showed that generally the expression of Smad1,Smad2 and Smad4 in the testis tended to increase gradually with the growth of the rat.Conclusion;The present data provide direct evidences for the molecular mechanism of TGF-β action in rat testes during postnatal development and spermatogenesis. | JingHU Yuan-QiangZHANG Xin-PingLIU Rui-AnWANG YanJIN Ruo-JunXU | 2003 | Asian Journal of Andrology2003，5，1： | 10 |
| 2 | Spatiotemporal changes in vegetation net primary productivity in the arid region of Northwest China, 2001 to 2012显示文摘网主要生产率(NPP ) 作为生态系统条件和陆上的碳周期的一个关键变量的一个重要索引被认出。它也在陆上的植被上代表气候变化和人为的活动的全面效果。在这研究,为时期的 NPP 的时间空间的模式 20012012 用一个遥远的基于感觉的碳模型被分析(即, Carnegie-Ames-Stanford 途径,房屋) 除了另外的方法,标准差,和林中小丘例如线性趋势分析,索引。时间地, NPP 为西北中国(ARNC ) 的干旱区域显示出一个重要增加趋势,随 2.327 g C 的年度增加。最大、最小的生产率价值分别地出现在 7 月和 12 月。空间地,, NPP 在西北中国的适度、温暖适度的荒芜的区域是相对稳定的时间地,它显示出一个增加的趋势。然而,一些注意应该被给西北的温暖适度的荒芜的区域,在有严重连续降级和一个仅仅细微改进趋势的地方。 | Zhen LI Jinghu PAN | 2018 | Frontiers of Earth Science2018，12，1： | 9 |
| 3 | Numerical simulation of non-Gaussian wind load显示文摘Compared with Gaussian wind loads,there is a higher probability of strong suction fluctuations occurrence for non-Gaussian wind pressures.These instantaneous and intermittent fluctuations are the initial cause of local damage to roof structures,particularly at the edges and corners of long-span roofs.Thus,comparative errors would occur if a Gaussian model is used to describe a non-Gaussian wind load,and structural security would not be guaranteed.This paper presents a simplified method based on the inverse fast Fourier transform(IFFT),in which the amplitude spectrum is established via a target power spectrum.Also,the phase spectrum is constructed by introducing the exponential peak generation(EPG) model.Finally,a random process can be generated via IFFT that meets the specified power spectral density(PSD),skewness and kurtosis.In contrast to a wind tunnel experiment,this method can avoid the coupled relation between the non-Gaussian and the power spectrum characteristics,and lead to the desired computational efficiency.Its fitting accuracy is not affected by phase spectrum.Moreover,the fitting precision of the kurtosis and PSD parameters can be guaranteed.In a few cases,the fitting precision of the skewness parameter is fairly poor,but kurtosis is more important than skewness in the description of the non-Gaussian characteristics.Above all,this algorithm is simple and stable and would be an effective method to simulate a non-Gaussian signal. | YE JiHong DING JingHu LIU ChuanYan | 2012 | Science China(Technological Sciences)2012，55，11： | 3 |
| 4 | Expression of VEGF‐C and VEGF‐D as Significant Markers for Assessment of Lymphangiogenesis and Lymph Node Metastasis in Non‐Small Cell Lung Cancer显示文摘 | YukuanFeng WeiWang JingHu JingMa YafangZhang JianguoZhang | 2010 | Anat Rec2010，，5： | 2 |
| 5 | Spatial Identification of Housing Vacancy in China显示文摘The housing vacancy rate(HVR)is an important index in assessing the healthiness of residential real estate market.In China,it is hardly to take advantage of the basic data of real estate information due to the opaque of those data.In this paper,the HVR is estimated to two scales.At the grid level,urban area ratio was calculated by nighttime images after eliminating outliers of nighttime images and night light intensity of non-residential pixels in mixed pixels by a proposed modified optimal threshold method,and built-up areas in each pixel were extracted from the land-cover data.Then,the HVR is calculated by comparing the light intensity of specific grid with the light intensity of full occupancy rate regions.At the administrative scale,the GCI(‘ghost city’index)is constructed by calculating the ratio of the total light radiation intensity of a city to the total construction land area of the city.The overall spatial differentiation pattern of the vacant houses in the national prefecture level administrative regions is analyzed.The following conclusions were drawn:vacant housing is rare in certain eastern coastal cities and regions in China with relatively fast economic development.Cities based on exhausted resources,some mountainous cities,and cities with relatively backward economic development more typically showed high levels of housing vacancy.The GCI of prefecture-level administrative units gradually declined from north to south,whereas the east-west distribution showed a parabolic shape.As city level decreased,the GCI registered a gradual upward trend.China’s urban housing vacancy can be divided into five categories:industry or resources driven,government planned,epitaxy expansionary,environmental constraint and speculative activate by combining the spatial distribution of housing vacancy with the factors of natural environment,social economic development level,and population density into consideration. | PAN Jinghu DONG Leilei | 2021 | Chinese Geographical Science2021，31，2： | 2 |
| 6 | Angiogenesis and osteogenesis enhanced by bFGF ex vivo gene therapy for bone tissue engineering in reconstruction of calvarial defects显示文摘 | DanQu JihuaLi YubaoLi YingGao YiZuo YuchunHsu JingHu | 2011 | J Biomed Mater Res2011，，3： | 2 |
| 7 | Measurement for coordinated development of"four modernizations" and its efficiency ofprefecture level cities or above in China显示文摘The efficient and coordinated development of industrialization, urbanization, informatization and agricultural modernization(so called 'Sihua Tongbu' in China, and hereinafter referred to as 'four modernizations') is not only a practical need but also an important strategic direction of integrating urban-rural development and regional development in recent China. This paper evaluated the comprehensive, coupling and coordinated developmental indices of 'four modernizations' of China's 343 prefecture-level administrative units, and calculated their efficiency of 'four modernizations' in 2001 and 2011. The efficiency evaluation index system was established. The efficiencies and their changing trend during the period 2001–2011 were investigated using the data envelopment analysis(DEA) model. Spatial-temporal pattern of the efficiency of China's prefecture-level units was explored by using exploratory spatial data analysis(ESDA). Finally, the main influencing factors were revealed with the aid of geographically weighted regression(GWR) model. Results indicate that the comprehensive, coupling and coordinated developmental indices and efficiency of 'four modernizations' of China's prefecture-level administrative units have obvious spatial differences and show diverse regional patterns. Overall, the efficiency is relatively low, and only few units with small urban populations and economic scale are in DEA efficiencies. The efficiency changing trends were decreasing during 2001–2011, with a transfer of high efficiency areas from inland to eastern coastal areas. The difference between urban and rural per capita investment in fixed assets boasts the greatest influence on the efficiency. | jinghu pan yanxing hu | 2016 | Research in Cold and Arid Regions2016，8，2： | 2 |
| 8 | Reduced-complexity decoding of LDPC codes显示文摘 | Jinghu Chen A Dholakia E Eleftheriou M P C Fossorier Xiao-Yu Hu | 2005 | IEEE Transactions on Communications2005，53，8： | 1 |
| 9 | Near optimum uni- versal belief propagation based decoding of low-density parity check codes显示文摘 | Jinghu Chen Marc P C Fossorier | 2002 | IEEE Trans on Communica tions2002，50，3： | 1 |
| 10 | Near optimum universal belief propagation based decoding of low density parity check codes显示文摘 | Jinghu Chen Marc P C Fossorier | 2002 | IEEE Transactions on communications2002，50，3： | 1 |
| 11 | Extracting desertification from Landsat TM imagery based on spectral mixture analysis and Albedo- Vegetation feature space显示文摘 | Jinghu Pan Tianyu Li | 2013 | Nat Hazards2013，，68： | 1 |
| 12 | Density evolution for two improved BP-Based decoding algorithms of LDPC codes显示文摘 | Jinghu C and Fossorier M P C | 2002 | IEEE Communications Letters2002，6，5： | 1 |
| 13 | Reduced-complexity decoding of LDPC codes 显示文摘 | CHEN Jinghu DHOLAKIA A ELEFTHERIOU E | 2005 | IEEE Trans on Communications2005，53，8： | 1 |
| 14 | Density evolution for two improved BP-based decoding algorithms of LDPC codes 显示文摘 | CHEN Jinghu Fossorier M P C | 2002 | IEEE Communication Letters2002，6，5： | 1 |
| 15 | Near optimum universal belief propagation-based decoding of low density parity check codes 显示文摘 | CHEN Jinghu Fossorier M P C | 2002 | IEEE Trans Commun2002，50，3： | 1 |
| 16 | Near optimum universal belief propagation based decoding of low-density parity check codes 显示文摘 | CHEN Jinghu FOSSORIER P C | 2002 | IEEE Transcation on Communication2002，50，3： | 1 |
| 17 | Density evolution for two improved BP-based decoding algorithms of LDPC codes显示文摘 | Jinghu Chen FOSSQRIER M | 2002 | iEEE on Commun letters2002，6，5： | 1 |
| 18 | Near optimum universal belief propagation based decoding of low-density parity check codes显示文摘 | Chen Jinghu and Fossorier M P C | 2002 | IEEE Transactions on Communications2002，50，3： | 1 |
| 19 | Near optimum univer- sal belief propagation based decoding of low-density par-ity check codes 显示文摘 | Chen Jinghu Fossorrier M P C | 2002 | IEEE Trans Communications2002，50，3： | 1 |
| 20 | Density evolution for BP-based decoding algorithms of LDPC codes and their quantized versions显示文摘 | Chen Jinghu Fossorrier M P C | 2002 | IEEE Commun Lett2002，6，5： | 1 |
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