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Seedling survival after simulating grazing and drought for two species from the Pamirs,northwestern China

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Plant diversity 2022年第6期44卷 607-616页

作者： Fiona R.Worthy Stefanie d.goldberg Sailesh Ranjitkar Jian-Chu Xu CAS Key Laboratory for Plant diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201YunnanChina CIFOR-ICRAF China Program World Agroforestry(ICRAF)Kunming 650201YunnanChina Honghe Center for Mountain Futures(CMF) Kunming Institute of BotanyChinese Academy of SciencesHonghe County 654400YunnanChina Faculty of Agroforestry Lumbini Buddhist UniversityLumbiniNepal

For plant populations to persist,seedling recruitment is essential,requiring seed germination,seedling survival and *** and grazing potentially reduce seedling recruitment via increased mortality and reduced *** studied these seederelated processes for two species indigenous to the Pamir Mountains of Xinjiang in northwestern China:Saussurea glacialis and Plantago *** collected from Taxkorgan,Xinjiang,had a viability rate of 15.8%for *** but 100%for *** the viable seeds,the highest germination rates were 62.9%for *** and 45.6%for *** a greenhouse experiment,we imposed a series of stressful conditions,involving a combination of simulated grazing and drought *** had the most severe impact on younger *** showed that 89%of *** mortality was due to early simulated grazing,whereas 80%of *** mortality was due to early simulated *** differences could contribute to their differing *** may rely on water storage in leaves to survive drought events,but showed no shifts in biomass allocation that would improve grazing *** appears more reliant on its root system to survive grazing,but the root reserves of younger plants could be insufficient to grow deeper in response to *** applying all mortality factors,17.7 seedlings/parent of *** survived,while onlydlings/parent of *** survived,raising concerns for its capacity to persist in the *** genetic differences may underlie the two species’contrasting grazing and drought ***,differing conservation strategies are required for their utilization and protection.

关键词： Medicinal plant Pastoralist Plantago lessingii Saussurea glacialis Soil moisture Water deficit

Spatial and seasonal variation in soil respiration along a slope in a rubber plantation and a natural forest in Xishuangbanna, Southwest China

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Journal of Mountain Science 2018年第4期15卷 695-707页

作者： ZHAO Yong-li Stefanie d.goldberg XU Jian-chu Rhett d.HARRISON Center for Mountain Ecosystem Studies Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China University of Chinese Academy of Sciences Beijing 100039 China World Agroforestry Centre East and Central Asia Kunming 650201 China World Agroforestry Centre East & Southern Africa Region 13 Elm Road Woodlands Lusaka Zambia

Soil respiration is a key component of the global carbon cycle, and even small changes in soil respiration rates could result in significant changes in atmospheric CO_2 levels. The conversion of tropical forests to rubber plantations in SE Asia is increasingly common, and there is a need to understand the impacts of this land-use change on soil respiration in order to revise CO_2 budget calculations. This study focused on the spatial variability of soil respiration along a slope in a natural tropical rainforest and a terraced rubber plantation in Xishuangbanna, Southwest(SW) China. In each land-use type, we inserted 105 collars for soil respiration *** was conducted over one year in Xishuangbanna during May, June, July and October 2015(wet season) and January and March 2016(dry season). The mean annual soil respiration rate was 30% higher in natural forest than in rubber plantation and mean fluxes in the wet and dry season were 15.1 and 9.5 Mg C ha^(-1) yr^(-1) in natural forest and 11.7 and 5.7 Mg C ha^(-1) yr^(-1) in rubber plantation. Using a linear mixedeffects model to assess the effect of changes in soil temperature and moisture on soil respiration, we found that soil temperature was the main driver of variation in soil respiration, explaining 48% of its seasonal variation in rubber plantation and 30% in natural forest. After including soil moisture, the model explained 70% of the variation in soil respiration in natural forest and 76% in rubber plantation. In the natural forest slope position had a significant effect on soil respiration, and soil temperature and soil moisture gradients only partly explained this correlation. In contrast, soil respiration in rubber plantation was not affected by slope position, which may be due to the terrace structure that resulted in more homogeneous environmental conditions along the slope. Further research is needed to determine whether or not these findings hold true at a landscape level.

关键词： Soil respiration Tropical rain forest Rubber plantation Land-use change Carbon cycle Transect

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BRCA1在人类肿瘤细胞中的表达(英文)

实验生物学报 2001年第1期34卷 55-64页

作者：孟庆慧袁仁起 Itzhak d.goldberg Eliot M Rosen 樊赛军纽约长岛犹太人医学中心放射肿瘤系分子肿瘤学研究室纽约爱因斯坦医学院长岛附属医院

人类乳癌易感基因1(BRCA1)是乳癌,卵巢癌和前列腺癌的危险因素之一,而且表现出许多的生物功能。采用Western Blotting和半定量RT-PCR的方法,我们检测了内源性BRCA1蛋白质和mR-NA在从十一种人类肿瘤组织中建立的四十三种肿瘤细胞系的表... 详细信息

人类乳癌易感基因1(BRCA1)是乳癌,卵巢癌和前列腺癌的危险因素之一,而且表现出许多的生物功能。采用Western Blotting和半定量RT-PCR的方法,我们检测了内源性BRCA1蛋白质和mR-NA在从十一种人类肿瘤组织中建立的四十三种肿瘤细胞系的表达水平。在不同的肿瘤细胞中BRCA1的表达水平是各不一样的。而且并没有发现BRCA1的表达和细胞的内源性p53基因状况有明显的相关性。通过采用细胞转染乳头状瘤病毒-E6致癌基因或采用畸变的p53基因(143Ala→Va1)而导致的p53基因功能失活并不对内源性BRCA1本底表达水平产生任何的影响,但两种与p53功能有关p21(-/-)和Gadd45基因剔除则轻微地增加BRCA1蛋白质的表达。因此,虽然我们目前还不清楚BRCA1在人类肿瘤细胞中不同表达的功能意义,但本文的结果为进一步研究BRCA1在不同肿瘤细胞系的生物功能提供了有价值的背景资料。

关键词： BRCA1 p53 肿瘤细胞基因人类

Soil respiration under three different land use types in a tropical mountain region of China

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Journal of Mountain Science 2016年第3期13卷 416-423页

作者： WU Jun-jie Stefanie daniela goldberg Peter edward MORTIMER XU Jian-chu Center for Mountain Ecosystem Studies Kunming Institute of BotanyChinese Academy of Sciences Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Chinese Academy of Sciences World Agroforestry Centre East and Central Asia

Soil respiration (SR) Wis one of the largest contributors of terrestrial CO_2 to the *** as well as physicochemical parameters influence SR and thus, different land use practices impact the emissions of soil CO_2. In this study, we measured SR, bi-monthly, over a one-year period in a terrace tea plantation, a forest tea plantation and a secondary forest, in a subtropical mountain area in Xishuangbanna, China. Along with the measurement of SR rates, soil characteristics for each of the land use systems were investigated. Soil respiration rates in the different land use systems did not differ significantly during the dry season, ranging from2.7±0.2 μmol m^(-2) s^(-1) to 2.8±0.2 μmol m^(-2) s^(-1). during the wet season, however, SR rates were significantly larger in the terrace tea plantation(5.4±0.5 μmol m^(-2)s^(-1)) and secondary forest(4.9±0.4 μmol m^(-2)s^(-1)) than in the forest tea plantation(3.7±0.2 μmol m^(-2) s^(-1)).This resulted in significantly larger annual soil CO_2 emissions from the terrace tea and secondary forest,than from the forest tea plantation. It is likely that these differences in the SR rates are due to the 0.5times lower soil organic carbon concentrations in thetop mineral soil in the forest tea plantation, compared to the terrace tea plantation and secondary ***, we suggest that the lower sensitivity to temperature variation in the forest tea soil is a result of the lower soil organic carbon concentrations. The higher SR rates in the terrace tea plantation were partly due to weeding events, which caused CO_2 emission peaks that contributed almost 10% to the annual CO_2 flux. Our findings suggest that moving away from heavily managed tea plantations towards low-input forest tea can reduce the soil CO_2 emissions from these systems. However, our study is a casestudy and further investigations and upscaling are necessary to show if these findings hold true at a landscape level.

关键词： Soil respiration Subtropical mountain region Soil temperature Soil moisture Weeding Tea plantation

Sustainable oil-in-water analysis using a supercritical fluid carbon dioxide extraction system directly interfaced with infrared spectroscopy

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Journal of Environmental Sciences 2010年第9期22卷 1462-1468页

作者： edward d.Ramsey School of Chemical Engineering University of Science and Technology Liaoning

A direct aqueous supercritical fluid extraction （SFE） system using carbon dioxide provides a sustainable means by which a vast range of industries may continue to depend on well established infrared （IR） techniques to determine oil-in-water. The SFE-IR method provides an environmentally friendly substitute for current national standard IR reference methods for measuring oil-in-water that rely on using increasingly restricted ozone depleting solvents whose manufacture is being phased out in accordance with international law. The SFE-IR analysis of a 500 mL water sample can be accomplished in 15 min. A rapid on-line SFE-IR calibration method has been implemented. With this calibration method, SFE-IR accuracy for determining diesel oil in 500 mL spiked water samples using single wave number measurement was 86.0%-98.8% with precision （RSd） ranging from 2.5%-7.0%. Using a general purpose calculation which involves measuring infrared absorbance values at three different wave numbers, SFE-IR method accuracy for determining diesel oil in 500 mL spiked water samples was 83.7%-92.2% with RSd 1.0%-9.3%. data is presented that indicates current long established national standard IR reference methods involving three wave number calculations should be reviewed since, without careful consideration, the inclusion of calculated aromatic hydrocarbon species contributions to final oil-in-water concentration values may provide less accurate results.

关键词： oil-in-water supercritical fluid extraction infrared spectroscopy sustainable green technology

Cardiovascular disease and male sexual dysfunction

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Asian Journal of Andrology 2015年第1期17卷 3-4,I0006页

作者： Martin Miner edward d Kim Miriam Hospital Men's Health Center Warren Alpert School of Medicine Brown University Providence RI USA department of Surgery Division of Urology University of Tennessee Graduate School of Medicine Knoxville Tennessee 37920 USA

Erectile dysfunction （Ed） is a form of sexual dysfunction that is estimated to affect 〉 30% of men between the ages of 40 and 70. As a result of an improved understanding about the pathophysiology of Ed and improved treatment options, an increasing number of men are presenting for evaluation than several decades ago. In fact, many of these men are visiting their health care professional for the first time with Ed as their primary complaint. Most of these men are unaware of the link between Ed and cardiovascular disease （CVd）.

关键词：性功能障碍心血管疾病男性勃起功能障碍病理生理医疗保健 CVd

Azoospermia:vasal agenesis

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Asian Journal of Andrology 2022年第1期24卷 1-4页

作者： J Sam Fisher edward d Kim department of Urology University of TennesseeKnoxvilleTN 37920USA

SPECIFIC GENETIC TESTS(CFTR ANd INTRON 8 SPLICE VARIANT TESTING)ANd THEIR SIGNIFICANCE Congenital bilateral absence of the vas deferens(CBAVd)and cystic fibrosis(CF)began as separate entities with an apparent clinical *** occurs in 1%–2%of men presenting with infertility at urological departments and has an incidence of 1:1000–1:2000 in Caucasian *** example of this anatomic variant is shown in Figure 1.

关键词： correlation. clinical Figure

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科学钻探新技术—随“取心”测井技术

测井与射孔 2004年第2期7卷 21-23页

作者： d.goldberg 李明厚闵家华不详胜利测井公司胜利石油管理局

近期开发的随“取心”测井(logging-while—coring)系统是在Oregon海岸Hydrate Ridge204区块进行海洋钻井工程时实施和试验的。系统主要由两套现有设备改进而成：斯仑贝谢公司的随钻电阻率测井仪和德克萨斯大学研制的电缆式可回收取心... 详细信息

近期开发的随“取心”测井(logging-while—coring)系统是在Oregon海岸Hydrate Ridge204区块进行海洋钻井工程时实施和试验的。系统主要由两套现有设备改进而成：斯仑贝谢公司的随钻电阻率测井仪和德克萨斯大学研制的电缆式可回收取心筒与锁具。这种组合结构可以保证在单个井筒中准确地确定测井取心深度和方位，而且无需起下管柱，节省了作业时间，具有其独特的优越性．2002年7月在Hydrate Ridge南部水深788．5m处进行了试验，以平均32．9％的收获率从1249B井45m长的井段中取出8筒岩心，其中1筒岩心的收获率为67．8％。井下仪详尽记录了钻开的74．9m层段的高质量测井与成像数据。测井数据经过处理之后可以与邻近的1249A井的常规测井数据进行对比．在204区块的成功试验表明可以同时完成取心与随钻测井工艺。2003年，海洋钻井工程将在坚硬的高电阻率地层中应用随“取心”测井技术。预计在这些区域采用随“取心”测井技术会变得越来越普遍，否则在这些钻井条件困难的地区，会因为钻井时间的限制而取消取心作业。

关键词： “取心”测井技术随钻测井岩心收获率钻井工程电缆

The efforts are worth the benefits for laparoscopic liver resection

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Hepatobiliary Surgery and Nutrition 2023年第5期12卷 813-814页

作者： edward Willems Mathieu d’Hondt department of digestive and Hepatobiliary/Pancreatic Surgery Groeninge HospitalKortrijkBelgium

Last year,Hepatobiliary Surgery and Nutrition published an interesting analysis performed by Ratti and colleagues(1).This study aimed to understand if the efforts associated with the laparoscopic approach in liver surgery are always worthwhile,specifically in high-complexity *** endpoint was to analyse the degree of benefit of laparoscopy over open liver surgery(OLS)in different levels of technical *** endpoint was to confirm that advantages of minimally invasive techniques over open are detectable within all levels of complexity.

关键词： Laparoscopic liver surgery(LLS) minimally invasive liver surgery learning curve differential benefit