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Different n-6/n-3 polyunsaturated fatty acid ratios affect postprandial metabolism in normal and hypertriglyceridemic rats

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Food Science and Human Wellness 2023年第4期12卷 1157-1166页

作者： Ligang yang Chao yang Zhixiu Song Min Wan Hui Xia Xian yang Dengfeng Xu Da Pan Hechun Liu Shaokang Wang Guiju Sun Key Laboratory of Environmental Medicine and Engineering of Ministry of Education School of Public HealthSoutheast UniversityNanjing 210009China Second Clinical Medical College Nanjing University of Chinese MedicineNanjing 210023China

Postprandial metabolism plays major roles in many pathological *** n-6/n-3 polyunsaturated fatty acid(PUFA)ratio is closely related to various physiological *** study aimed to investigate the effects of high fat meals with different n-6/n-3 PUFA ratios on postprandial metabolism in normal control(NC)and hypertriglyceridemia(HTG)*** postprandial response of triglyceride(TG)in HTG groups was higher than that in NC groups after different n-6/n-3 PUFA ratio *** HTG groups showed higher postprandial total cholesterol(TC)responses than NC groups after 1:1 and 20:1 ratio *** 5:1 n-6/n-3 PUFA ratio elicited lower postprandial responses of tumor necrosis factorα(TNF-α)than 1:1 and 10:1 ratios in HTG *** postprandial malondialdehyde(MDA)response was lower after a 5:1 n-6/n-3 PUFA ratio meal than 1:1 and 20:1 ratio meals in HTG *** 1:1 ratio resulted in a lower postprandial reactive oxygen species(ROS)level than 5:1 and 10:1 n-6/n-3 PUFA ratios in NC *** results showed that a low n-6/n-3 PUFA ratio improved postprandial dysmetabolism induced by a high fat meal in NC and HTG rats.A high n-6/n-3 PUFA ratio increased the difference in postprandial metabolism between NC and HTG rats.

关键词： Polyunsaturated fatty acid n-6 Fatty acids n-3 Fatty acids Postprandial metabolism Hypertriglyceridemia

Localized Optical Waves in Defocusing Regime of Negative-Index Materials

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Chinese Physics Letters 2017年第10期34卷 8-12页

作者： Wen-Hao Xu Zhan-Ying yang Chong Liu Wen-Li yang School of Physics Northwest University Xi'an 710069 Shaanxi Key Laboratory for Theoretical Physics Frontiers Xi'an 710069 Institute of Modern Physics Northwest University Xi'an 710069

We study optical localized waves on a plane-wave background in negative-index materials governed by the defocusing nonlinear Schr6dinger equation with self-steepening effect. Important characteristics of localized waves, such as the excitations, transitions, propagation stability, and mechanism, are revealed in detail. An intrigu- ing sequential transition that involves the rogue wave, antidark-dark soliton pair, antidark soliton and antidark soliton pair can be triggered as the self-steepening effect attenuates. The corresponding phase diagram is estab- lished in the defocusing regime of negative-index materials. The propagation stability of the localized waves is confirmed numerically. In particular, our results illuminate the transition mechanism by establishing the exact correspondence between the transition and the modulation instability analysis.

关键词： In Localized Optical Waves in Defocusing Regime of Negative-Index Materials

Tree ring based streamflow reconstruction for the Upper Yellow River over the past 1234 years

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Chinese Science Bulletin 2010年第36期55卷 4179-4186页

作者： GOU XiaoHua DENG yang CHEN FaHu yang MeiXue FANG KeYan GAO LinLin yang Tao ZHANG Fen Key Laboratory of Western China's Environmental Systems (MOE) Lanzhou University Lanzhou 730000 China State Key Laboratory of Cryospheric Sciences Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China

We established a Juniperus przewalski tree ring width chronology, based on tree ring cores collected from the A’nyêmaqên Mountains. Statistical analysis showed that the chronology was highly correlated with instrumental streamflow records from previous August to current July from the Tangnaihai Station in the upper reaches of the Yellow River, with a correlation coefficient of 0.656. Streamflow for the upper reaches of the Yellow River was reconstructed for the past 1234 years. Low flow periods for the 11-year averaged streamflow reconstruction were definite as lower than mean plus 1 standard deviation, and high flow periods were higher than mean minus 1 standard deviation. Over the past 1234 years, high flows occurred 18 times, and low flows occurred 12 times. The main low flow periods were identified as AD 1140–1156, AD 1295–1309, AD 1473–1500, and AD 1820–1847, and the main high flow periods were identified as AD 846–873, and AD 1375–1400. Extremely low streamflow over the reconstruction period was seen during the late 15th century, coinciding with a widespread drought phenomenon, which took place in the northeastern Tibetan Plateau over the same period. Reconstructed streamflow shows significant low-frequency variability, which is in line with drought variability of neighboring regions, as inferred from tree rings and other proxies. Multi-taper spectral analysis suggests the existence of significant periods of 2–5, 22, 35–38, 55–62, and 114–227 years, particularly significant for cyclic variations of years 159 and 36.

关键词：黄河上游径流量树木年轮干旱现象阿尼玛卿山低流量年轮宽度普氏原羚

Thermal Analysis of a Volumetric Solar Receiver

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Journal of Thermal Science 2019年第6期28卷 1176-1185页

作者： CHEN Longfei yang Ming LI Jinping BAI Yakai LI Xiaoxia TANG Wenxue yang Nancong WANG Zhifeng Lanzhou University of Technology Lanzhou 730050China Key Laboratory of Solar Thermal Energy and Photovoltaic Systems Chinese Academy of SciencesBeijing 100190China Institute of Electrical Engineering Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Beijing Engineering Research Center of Solar Thermal Power Beijing 100190China Beijing CSP International Cooperation Centre Beijing 100190China Joint Laboratory Institute of Electrical EngineeringChinese Academy of Sciences and Guangdong Five Star Solar Energy Co.Ltd.Beijing 100190China Guangdong 5 Star Solar Energy CO.LTD Dongguan 523051China

The volumetric receiver has received wide attention due to its high thermal efficiency. This paper studied a new type of a solid-liquid composite volumetric receiver. The heat transfer in a solid-liquid composite volumetric solar receiver was analyzed using a one-dimensional unsteady simulation model of the solid-liquid receiver. The model included absorption of the incident solar radiation by the glass window, the silicon carbide porous ceramic heat absorber panel and the water. The results were verified against experimental data for a volumetric receiver and the error did not exceed 10%. It can be used to predict the heat transfer in solid-liquid composite volumetric receivers.

关键词： solar receiver solid-liquid composite absorber silicon carbide porous ceramic volumetric solar collector

Estimation of generalized soil structure index based on differential spectra of different orders by multivariate assessment

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International Soil and Water Conservation Research 2024年第2期12卷 313-321页

作者： Sha yang Zhigang Wang Chenbo yang Chao Wang Ziyang Wang Xiaobin Yan Xingxing Qiao Meichen Feng Lujie Xiao Fahad Shafiq Wude yang College of Agriculture Shanxi Agriculture UniversityTaiguChina College of Smart Agriculture Shanxi Agriculture UniversityTaiguChina Department of Botany Government College University LahorePakistan

Better soil structure promotes extension of plant roots thereby improving plant growth and *** in soil structure can be determined by changes in the three phases of soil,which in turn affect soil function and fertility *** compare the quality of soil structure under different conditions,we used Generalized Soil Structure Index(GSSI)as an indicator to determine the relationship between the“input”of soil three phases and the“output”of soil *** achieve optimum monitoring of comprehensive indicators,we used Successive Projections Algorithm(SPA)for differential processing based on 0.0–2.0 fractional orders and 3.0–10.0 integer orders and select important wavelengths to process soil spectral *** addition,we also applied multivariate regression learning models including Gaussian Process Regression(GPR)and Artificial Neural Network(ANN),exploring potential capabilities of hyperspectral in predicting *** results showed that spectral reflection,mainly contributed by long-wave near-infrared radiation had an inverse relationship with GSSI *** wavelengths between 404-418 nm and 2193–2400 nm were important GSSI wavelengths in fractional differential spectroscopy data,while those ranging from 543 to 999 nm were important GSSI wavelengths in integer differential spectroscopy ***,non-linear models were more accurate than linear *** addition,wide neural networks were best suited for establishing fractional-order differentiation and second-order differentiation models,while fine Gaussian support vector machines were best suited for establishing first-order differentiation *** terms of preprocessing,a differential order of 0.9 was found as the best *** the results,we propose that when constructing optimal prediction models,it is necessary to consider indicators,differential orders,and model *** all,this study provided a new method for an in-depth analyses of generalized soil *** also fills

关键词： Three-phase soil Generalized soil structure index Hyperspectral Differential spectrum Regression learning model

Red sprites over thunderstorms in the coast of Shandong Province,China

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Chinese Science Bulletin 2008年第7期53卷 1079-1086页

作者： yang Jing QIE XiuShu ZHANG GuangShu ZHAO yang ZHANG Tong Laboratory for Middle Atmosphere and Global Environment Observation (LAGEO) Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China Laboratory for Climate Environment and Disasters of Western China (LCEDWC) Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China

Red sprites, different from lightning flashes occurring in the troposphere, are large and brief dis-charges which appear in the altitude range from about 40 to 90 km above large thunderstorms and are usually caused by cloud-to-ground lightning discharges (CGs). A total of 17 sprites over two thunder-storms were first observed during the summer of 2007. One of the sprites occurred on July 28 above a thunderstorm in Guan County and the center of the storm was about 272 km from the observation site. The other sprites were recorded at the late night of August 1 and in the early morning of August 2, and the storm center was about 315 km away. All of the observed sprites occurred in cluster, and their appearances were very different, including 'columniform sprites', 'columniform sprites' with angel-like wings, 'carrot sprites', 'dancing sprites', etc. The duration of the sprites varied from a minimum of 40 ms to a maximum of 160 ms with a geometric mean (GM) of 61 ms. The time delay between parental positive cloud-to-ground lightning flashes (+CGs) and the associated sprites varied from 3.4 to 11.8 ms with a GM of 7.1 ms. The ratio of the number of +CGs to the total number of CGs during the time period with sprites was 7 times larger than that when no sprites occurred. Sprites did not appear fre-quently at the time when the convective activity is strong but when the thunderstorm starts to become weak.

关键词：雷暴海岸山东中国

Genetic biosensors for small-molecule products： Design and applications in high-throughput screening

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Frontiers of Chemical Science and Engineering 2017年第1期11卷 15-26页

作者： Qingzhuo Wang Shuang-Yan Tang Sheng yang Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Shanghai 200025 China University of the Chinese Academy of Sciences Beijing 100049 China CAS Key Laboratory of Microbial Physiological and Metebolic Engineering Institute of Microbiology Chinese Academy of Sciences Beijing 100101 China Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 China

Overproduction of small-molecule chemicals using engineered microbial cells has greatly reduced the production cost and promoted environmental protection. Notably, the rapid and sensitive evaluation of the in vivo concentrations of the desired products greatly facilitates the optimization process of cell factories. For this purpose, many genetic components have been adapted into in vivo biosensors of small molecules, which couple the intracel- lular concentrations of small molecules to easily detectable readouts such as fluorescence, absorbance, and cell growth. Such biosensors allow a high-throughput screen- ing of the small-molecule products, and can be roughly classified as protein-based and RNA-based biosensors. This review summarizes the recent developments in the design and applications of biosensors for small-molecule products.

关键词： biosensor small molecule product transcrip-tion factor riboswitch high-throughput screening

Liquorice-induced severe hypokalemic rhabdomyolysis with Gitelman syndrome and diabetes: A case report

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World Journal of Clinical Cases 2019年第10期7卷 1200-1205页

作者： Lu-yang yang Jin-Hua Yin Jing yang Yi Ren Chen-Yu Xiang Chun-Yan Wang Department of Endocrinology First Hospital of Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Endocrinology First Hospital of Shanxi Medical UniversityShanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina

BACKGROUND Licorice-induced severe hypokalemic rhabdomyolysis is clinically rare. Gitelman syndrome(GS) is the most common inherited renal tubular disease, while diabetes is one of the most prevalent diseases in the world. Recently, some studies have found that GS patients had higher diabetic morbidity. However, the coexistence of these three diseases has yet to be *** SUMMARY We report the case of a 62-year-old Chinese man who was admitted with weakness in the extremities, muscle pain, and dark-colored urine. He had consumed liquorice water daily for seven days prior to admission. The laboratory tests revealed a serum potassium level of 1.84 mmol/L, magnesium 0.68 mmol/L, creatinine phosphokinase(CK) 10117 IU/L, and marked hemoglobinuria. Fractional chloride excretion and fractional magnesium excretion were increased. Plasma renin activity and aldosterone concentration were within the normal ranges. Sequence analysis of the SLC12 A3 gene revealed that he had compound heterozygous mutations. The diagnosis of liquoriceinduced severe hypokalemic rhabdomyolysis with GS and diabetes was thus genetically confirmed. Serum potassium and CK quickly improved with potassium replacement therapy, hydration, and discontinuation of liquorice ingestion. Upon follow-up at 3 mo, the levels of CK, myoglobin, and potassium remained normal, and magnesium was above 0.6 mmol/*** This case emphasizes that liquorice consumption and GS should be considered causes of hypokalemia and that the diabetic status of GS patients should be noted in the clinic.

关键词： Hypokalemia Rhabdomyolysis Liquorice Gitelman syndrome Diabetes Case report

Slippery quartz surfaces for anti‐fouling optical windows

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Droplet 2023年第1期2卷 47-55页

作者： Minjing Li Tongzhen yang Qing yang Shaokun Wang Zheng Fang yang Cheng Xun Hou Feng Chen School of Mechanical Engineering Xi'an Jiaotong UniversityXi'anChina State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information School of Electronic Science and EngineeringXi'an Jiaotong UniversityXi'anChina

The surface of camera‐based medical devices is easily smeared by blood and fog during the surgical procedure,causing visual field loss and bringing great distress to both doctors and *** this article,a slippery liquid‐infused porous surface(SLIPS)on a quartz window surface that can repel various liquids,especially blood droplets is reported.A femtosecond laser pulse train was used to create periodic microhole structures on the silica *** subsequent low surface energy treatment and lubricant infusion led to the successful preparation of a slippery *** blood‐repellent windows exhibited high transparency,great antifogging,and antibacterial *** addition,the slippery ability of the as‐prepared surface exhibited outstanding stability since the surface could withstand harsh treatments/environments,such as repeated pipette scratches and immersion in different pH *** as‐prepared millimeter‐sized quartz samples with SLIPS were attached to the endoscope lens as a protective coating and could maintain high visibility after repeated immersion in *** believe that the coating developed in this study will provide inspiration for the design of next‐generation endoscopes or other camera‐guided devices that will resist fouling,keep clear vision,and reduce operation time,thus offering great potential applications in lesion diagnosis and therapy.

关键词： quartz fouling visibility