A New ent-Kaurane type Diterpenoid Glycoside from Inula japonica Thunb

Jiang Jiang Qin,Jia Xian Zhu,Wei Dong Zhang1,2,Yan Zhu,Jian Jun Fu,Xiao Hua Liu,Hui Zi Jin 대한약학회 2009 Archives of Pharmacal Research Vol.32 No.10

A new ent-kaurane type diterpenoid glycoside, 17-O-β-D-glucopyranosyl-16α-ent-kauran-19-oic acid (1), together with 17-hydroxy-16α-ent-kauran-19-oic acid (2), 16α,17-dihydroxyl-ent-kauran-19-oic acid (3), and 16α-hydroxy-17-acetoxy-ent- kauran-19-oic acid (4) were isolated from the aerial parts of Inula japonica Thunb. The structure of 1 was determined mainly by use of 1D and 2D NMR spectroscopic techniques including HSQC, 1H-1H COSY, HMBC, and NOESY. In addition, 4 exhibited significant inhibitory activity on NO production in LPS-stimulated RAW264.7 cells with IC50 value of 14.3 μg/mL.

Tracking the movement trajectory of newly emerged adult Chinese citrus flies with insect harmonic radar

Zhang-Zhang He,Jie Luo,Lian-You Gui,Deng-Ke Hua,Tian-Hua Du,Fu-Lian Wang,Peng Liang,Yong-Fang Shi,Xuan Yang 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.3

Previous work reveals that the adult Chinese citrus fly, Bactrocera minax (Enderlein), emerges from the ground in citrus orchards and presumably disperses to alternate food sources in neighboring shrubs and trees, where it stays and becomes reproductively mature, and then later returns to the orchard to lay eggs. We investigated the trajectories of early emerged adult Chinese citrus flies, which were tracked with portable harmonic radar in 2013, 2014, 2015, and 2016 in four different habitats in Hubei province of China that presumably provided food sources for adults. This study we investigated whether early emerged adult Chinese citrus flies migrate into forests. A total of 47 adults were tracked following release in a citrus orchard. Our results showed that a total of 33 adults released in a citrus orchard flew into the forest, and 14 adults that disappeared during the tracking process in the citrus orchard. A total of 10 adults (in 2014) that were tracked and released in the forest flew to the forest. Of the adult flies investigated, 54.5% flew directly into the forest, while the remaining 45.5% finally arrived in the forest after repeatedly adjusting their trajectories. When there were Castanea mollissima Blume (Fagaceae) in the surrounding forest, the proportion of frequency of adult landing on the plant represented 58.3% and 88.5% of landing on all species in 2014 and in 2015, respectively. We conclude that early emerged adult Chinese citrus flies in the mosaic-type citrus orchard of the hilly terrain landform dispersed into adjacent forest.

Risk Factors for Cervical Cancer in Rural Areas of Wuhan China: a Matched Case-control Study

Zhang, Bin,Zhou, Ai-Fen,Zhu, Chang-Cai,Zhang, Ling,Xiang, Bing,Chen, Zhong,Hu, Rong-Hua,Zhang, Ya-Qi,Qiu, Lin,Zhang, Yi-Ming,Xiong, Chao-Du,Du, Yu-Kai,Shi, Yu-Qin Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.12

Cervical cancer is a serious public health problem in developing countries. We investigated possible risk factors for cervical cancer in rural areas of Wuhan China using a matched case-control study with 33 women diagnosed with cervical cancer and 132 healthy women selected from the same area as matched controls. A questionnaire, which included questions about general demography conditions, environmental and genetic factors, the first sexual intercourse, first marriage age, age at first pregnancy, pregnancy first child's age, female personal health history, social psychological factors, dietary habits, smoking and alcohol status and other living habits was presented to all participants. At the same time, HPV infection of every participant was examined in laboratory testing. Results showed HPV infection (P<0.000, OR=23.4) and pregnancy first child's age (P<0.000, OR=13.1) to be risk factors for cervical cancer. Menopause (P=0.003, OR=0.073) was a protective factor against cervical cancer. However, there was no indication of associations of environmental (drinking water, insecticide, disinfectant) genetic (cancer family history), or life-style factors (smoking status, alcohol status, physical training, sleep quality), including dietary habits (intake of fruit and vegetable, meat, fried food, bean products and pickled food) or social psychological factors with cervical cancer. The results suggest that the risk of cervical cancer in Chinese rural women may be associated with HPV infection, menopause and the pregnancy first child's age.

Which Indicator Among Lumbar Vertebral Hounsfield Unit, Vertebral Bone Quality, or Dual-Energy X-Ray Absorptiometry-Measured Bone Mineral Density Is More Efficacious in Predicting Thoracolumbar Fragility Fractures?

Bo Zhang,Lu-Ping Zhou,Xian-Liang Zhang,Dui Li,Jia-Qi Wang,Chong-Yu Jia,Hua-Qing Zhang,Liang Kang,Ren-Jie Zhang,Cai-Liang Shen 대한척추신경외과학회 2023 Neurospine Vol.20 No.4

Objective: Hounsfield units (HU), vertebral bone quality (VBQ), and bone mineral density (BMD) can all serve as predictive indicators for thoracolumbar fragility fractures. This study aims to explore which indicator provides better risk prediction for thoracolumbar fragility fractures. Methods: Patients who have received medical attention from The First Affiliated Hospital of Anhui Medical University for thoracolumbar fragility fractures were selected. A total of 78 patients with thoracolumbar fragility fractures were included in the study. To establish a control group, 78 patients with degenerative spinal diseases were matched to the fracture group on the basis of gender, age, and body mass index. The lumbar vertebral HU, the VBQ, and the BMD were obtained for all the 156 patients through computed tomography, magnetic resonance imaging, and dual-energy x-ray absorptiometry (DEXA). The correlations among these parameters were analyzed. The area under curve (AUC) analysis was employed to assess the predictive efficacy and thresholds of lumbar vertebral HU, VBQ, and BMD in relation to the risk of thoracolumbar fragility fractures. Results: Among the cohort of 156 patients, lumbar vertebral HU exhibited a positive correlation with BMD (p < 0.01). Conversely, VBQ showed a negative correlation with HU, BMD (p < 0.05). HU and BMD displayed a favorable predictive efficacy for thoracolumbar fragility fractures (p < 0.01), with HU (AUC = 0.863) showcasing the highest predictive efficacy, followed by the DEXA-measured BMD (AUC = 0.813). VBQ (AUC = 0.602) ranked lowest among the 3 indicators. The thresholds for predicting thoracolumbar fragility fractures were as follows: HU (88),VBQ (3.37), and BMD (0.81). Conclusion: All 3 of these indicators, HU, VBQ, and BMD, can predict thoracolumbar fragility fractures. Notably, lumbar vertebral HU exhibits the highest predictive efficacy, followed by the BMD obtained through DEXA scanning, with VBQ demonstrating the lowest predictive efficacy.

Expression of the Arabidopsis vacuolar $H^+$-pyrophosphatase gene AVP1 in peanut to improve drought and salt tolerance

Qin, Hua,Gu, Qiang,Kuppu, Sundaram,Sun, Li,Zhu, Xunlu,Mishra, Neelam,Hu, Rongbin,Shen, Guoxin,Zhang, Junling,Zhang, Yizheng,Zhu, Longfu,Zhang, Xianlong,Burow, Mark,Payton, Paxton,Zhang, Hong 한국식물생명공학회 2013 Plant biotechnology reports Vol.7 No.3

The Arabidopsis gene AVP1 encodes an $H^+$-pyrophosphatase that functions as a proton pump at the vacuolar membranes, generating a proton gradient across vacuolar membranes, which serves as the driving force for many secondary transporters on vacuolar membranes such as $Na^+/H^+$-antiporters. Overexpression of AVP1 could improve drought tolerance and salt tolerance in transgenic plants, suggesting a possible way in improving drought and salt tolerance in crops. The AVP1 was therefore introduced into peanut by Agrobacterium-mediated transformation. Analysis of AVP1-expressing peanut indicated that AVP1-overexpression in peanut could improve both drought and salt tolerance in greenhouse and growth chamber conditions, as AVP1-overexpressing peanuts produced more biomass and maintained higher photosynthetic rates under both drought and salt conditions. In the field, AVP1-overexpressing peanuts also outperformed wild-type plants by having higher photosynthetic rates and producing higher yields under low irrigation conditions.

ACCURACY OF LAMOST DR1 STELLAR PARAMETERS

GAO, HUA,ZHANG, HUA-WEI,XIANG, MAO-SHENG,HUANG, YANG,LIU, XIAO-WEI,LUO, A-LI,ZHANG, HAO-TONG,WU, YUE,ZHANG, YONG,LI, GUANG-WEI,DU, BING The Korean Astronomical Society 2015 天文學論叢 Vol.30 No.2

We adopt the PASTEL catalog combined with SIMBAD radial velocities as a testing standard to validate the stellar parameters (effective temperature $T_{eff}$, surface gravity log g, metallicity [Fe/H] and radial velocity $V_r$) from the first data release (DR1) of The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) survey. After applying data reduction and temperature constraints to the sample obtained by cross-identification, we compare the stellar parameters from DR1 and PASTEL. The results show that the DR1 results are reliable under certain conditions. We derive a dispersion of 110 K, 0.19 dex, 0.11 dex and $4.91kms^{-1}$ in specified effective temperature ranges, for $T_{eff}$, log g, [Fe/H] and $V_r$ respectively. Systematic errors are negligible except for those of $V_r$. In addition, for stars with PASTEL [Fe/H] < -1:5, the metallicities in DR1 are systematically higher than those in PASTEL.

B-HMAX: A fast binary biologically inspired model for object recognition

Zhang, Hua-Zhen,Lu, Yan-Feng,Kang, Tae-Koo,Lim, Myo-Taeg Elsevier BV 2016 Neurocomputing Vol.218 No.-

<P><B>Abstract</B></P> <P>The biologically inspired model, Hierarchical Model and X (HMAX), has excellent performance in object categorization. It consists of four layers of computational units based on the mechanisms of the visual cortex. However, the random patch selection method in HMAX often leads to mismatch due to the extraction of redundant information, and the computational cost of recognition is expensive because of the Euclidean distance calculations for similarity in the third layer, S2. To solve these limitations, we propose a fast binary-based HMAX model (B-HMAX). In the proposed method, we detect corner-based interest points after the second layer, C1, to extract few features with better distinctiveness, use binary strings to describe the image patches extracted around detected corners, then use the Hamming distance for matching between two patches in the third layer, S2, which is much faster than Euclidean distance calculations. The experimental results demonstrate that our proposed B-HMAX model can significantly reduce the total process time by almost 80% for an image, while keeping the accuracy performance competitive with the standard HMAX.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The binary HMAX model (B-HMAX) is proposed for object categorization. </LI> <LI> The B-HMAX can be processed much faster than HMAX in merit of proposed Binary S2 layer. </LI> <LI> The B-HMAX exhibits competitive recognition performance with HMAX. </LI> <LI> The B-HMAX exhibits much better recognition performance than SIFT and FREAK. </LI> </UL> </P>

'O BAG'을 통한 이탈리아 디자인의 수공예 정신 연구

Zhang, Xiao-Hua,고정훈 한국상품문화디자인학회 2019 상품문화디자인학연구 Vol.56 No.-

As a recently-released bag brand after a variety of famous Italian ones, O BAG (Fullspot), a brand that allows consumers to accessorise in a free way to finally finish products on their own, is a design of emotional experience integrating sentimental entertainment and rational thinking. All that the brand presents, including interpretation of DIY game spirit, freedom and transcendence of module concept, individualized presentation of self customization, experience of human emotions and system design thinking of brand style, belongs to the core connotation of Italian handicraft spirit. In this way, the handicraft spirit of machine products in post-industrial era is interpreted with a new look, the differences of O BAG are highlighted, and the diversity and differences of design wisdom are deeply integrated. 다양한 유명 이탈리아 브랜드들 후, 최근 출시 된 가방 브랜드인 O BAG (Fullspot)은 소비자들이 그들 스스로 제품의 마 무리를 할 수 있게 하였다. 이것은 소비자들의 정서적인 여흥으로 통합되는 감성적 경험과 합리적 사고의 디자인이라 할 수 있다. 브랜드가 제시하는 모든 것은 DIY 게임 정신, 모듈 개념의 자유와 초월성, 자체 맞춤화의 개별화 인간 감정의 경 험 및 브랜드 스타일에 대한 시스템적 디자인 사고를 포함한 이탈리아 수공예 정신의 핵심 의미를 포함한다. 이에, 산업화 시대의 기계 제품의 수공예 정신이 새로운 모습으로 해석되고 O BAG의 차이점이 강조되며 디자인 지혜의 다양성과 차이 가 깊이 통합된다고 본다.

Benchmarking CENDL-3.1 with Critical Benchmarks

Hua. Zhang,Haicheng. Wu 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23

In the frame of criticality safety, the new release of China Evaluated Nuclear Data Library, version 3.1, were validated with hundreds of critical benchmarks from the International Handbook of Evaluated Criticality Safety Benchmark Experiments. These benchmarks were selected to cover fast spectrum, intermediate spectrum and thermal spectrum. Criticality calculations were performed by using Monte Carlo transport code MCNP4C. Continuous-energy point-wise libraries were prepared with nuclear data processing code NJOY99.259 The calculated eigenvalues for CENDL-2.1 and CENDL-3.1 were compared with the benchmark values. The validation showed that evaluations from CENDL-3.1 gave better predictions of k_eff values than those from CENDL-2.1 in whole respect, especially in fast energy range.

Efficient Production and Molecular Identification of Tetraploid Watermelons Using Colchicine and Oryzaline in Vitro

Zhang Ming-Fang,Zhang Quan-Mei,Yang Jing-Hua,Yang Jia-Fu,Lin Yi,Rao Li-Bing 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-