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| 1 | 基础及周期雄激素水平与体外受精刺激参数有关,但不能预测妊娠结局显示文摘Objective: To evaluate androgen levels before and during IVF. To assess for an association between androgen levels and IVF stimulation parameters or IVF pregnancy outcome. Design: Prospective cohort study. Setting: Residency-based IVF program. Patient(s): One hundred seventeen infertility patients. Intervention(s): Androgen levels were evaluated on basal day 3 and during the IVF stimulation cycle. Main Outcome Measure(s): Pregnancy outcome rates and IVF stimulation parameters. Result(s): Mean serum androgen levels did not differ among different pregnancy outcomes. Multiple linear regression analysis revealed that body mass index (BMI) and oocyte number had a significant positive association with basal testosterone levels. Mean ovarian volume correlated negatively and follicle number correlated positively with testosterone levels on day 6 of stimulation. Peak E2 and BMI correlated positively with testosterone on day of hCG administration. The interval change in androgen levels throughout the IVF cycle was not associated with outcome rates. Likewise, threshold analysis did not reveal any significant androgen level that affected pregnancy outcome. Conclusion(s): Serum androgen levels during IVF correlate with IVF stimulation parameters. However, these data do not support an influence of serum androgen levels on IVF pregnancy outcome rates. | Frattarelli J.L Gerber M.D. 朱晓明 | 2006 | 世界核心医学期刊文摘(妇产科学分册)2006，0，11： | 4 |
| 2 | Modelling sulphate-enhanced cadmium uptake by Zea mays from nutrient solution under conditions of constant free Cd^(2+) ion activity显示文摘A controlled hydroponic experiment was undertaken to investigate Cd uptake in relation to the activity of Cd species in solution other than the free ion(Cd2+) by maintaining a constant Cd2+ activity under variable SO42-and Cl-concentrations exposed to maize(Zea mays var.Cameron) plants.The objectives of these experiments were:(1) to distinguish and quantify the different uptake rates of free and inorganic-complexed Cd from nutrient solution,and(2) to model the uptake of Cd by maize with a Biotic Ligand Model(BLM) in a system which facilitates the close examination of root characteristics.Results of the current experiments suggest that,in addition to the free ion,CdSO40 complexes are important factors in determining Cd uptake in nutrient solution by maize plants.Higher nominal SO42-concentrations in solution generally resulted in a greater Cd accumulation by maize plants than predicted by the Cd2+ activity.A better integration of the complete dataset for the 3 harvest times(6,9 and 11 days after treatment) was achieved by including consideration of both the duration of Cd exposure and especially the root surface area to express Cd uptake.Similarly,the fit of the BLM was also improved when taking into account exposure time and expressing uptake in terms of root morphological parameters. | Ulrico J.López-Chuken Scott D.Young | 2010 | Journal of Environmental Sciences2010，22，7： | 3 |
| 3 | 中国四川2008年5月12日汶川地震的地质与地球物理背景显示文摘2008年5月12日,在青藏高原东缘的龙门山,发生了Mw7.9地震。这一地震是在青藏高原长期隆升和向东推挤的背景下形成的。发生地震的区域有以下典型的地质特征:不是陡峭山前的活动汇聚造山带(包括地形起伏大于4km的情况),而是缺少高活动强度的低角度逆冲断层;虽拥有年轻的高地形(距今15Ma)和加厚的地壳,但是却只有低的GPS缩短率(小于3mm/a),并且缺少同时代的前陆沉积。在我们看来,青藏高原东部下面的地壳加厚不是因为上部地壳的大范围缩短,而是由于位于软弱层(低速层)中的深部地壳的韧性增厚。横跨龙门山的晚新生代缩短量可能仅有10—20km。且伴有主要造成青藏高原和四川盆地差异抬升的褶皱和断裂。5月12日的地震可能反映了青藏高原东部相对四川盆地的带有缓慢的汇聚和右旋走滑的长期抬升。5月12日地震邻区内GPS确定的速率表明,该地震的平均复发间隔大约为2000~10000年。 | B.C.Burchfiel L.H.Royden R.D.Vander Hilst B.H.Hager Z.Chen R.W.King C.Li J.L H.ao E.Kirby 任俊杰 | 2008 | 国际地震动态2008，，8： | 3 |
| 4 | 基于改进型蒙特卡洛模拟的腐蚀管线可靠性分析显示文摘考虑到系统可靠性的影响,研究了腐蚀管道的可靠性分析。通过利用改进型蒙特卡罗模拟方法进行分析,表明该方法在具有任意相关性的多个分量的情况下,对于量化系统可靠性非常有效。文章所研究的实例包括具有独立和相关的腐蚀缺陷的系统。 | 马小芳 BERNT J.L ARVID N BRANDRUD N | 2019 | 石油管材与仪器2019，5，3： | 2 |
| 5 | Assessing the estrogenic potency in a Portuguese wastewater treatment plant using an integrated approach显示文摘The estrogenic potency of a wastewater treatment plant(WWTP) was evaluated using chemical and biological analyses,which showed that after the station treatment processes some of the selected endocrine disruptor compounds(EDCs) were still present in the treated effuent(e.g.,bisphenol A,alkylphenols,estrone) .Thus,the most common endocrine EDCs were identified and quantified and the overall estrogenicity of the treated effuent assessed by integrating the results.Male goldfish(Carassius auratus) were used as biological indicators in a 28-day experiment.Vitellogenin(Vtg) ,gonadosomatic and hepatosomatic indices,steroids(17β-estradiol and 11-ketotestosterone) and histopathology were biomarkers used in fish to evaluate WWTP treated effuent estrogenicity,in combination with instrumental analyses.The results showed a significant increase(P<0.01) in plasma and liver Vtg,which were significantly correlated(r=0.66;P<0.01) .The gonadosmatic index was significantly(P<0.01) reduced in exposed fish.The steroid analyses revealed significant elevations in 17β-estradiol and depressed 11-ketotestosterone concentrations.The histological examinations show changes in exposed fish gonads,such as regressed testes and in some cases(43%to 75%) the development of ovo-testis in fish exposed to 50% and 100% treated effuent. | Mário S.Diniz Rita Maurício Mira Petrovic Maria J.López De Alda Leonor Amaral Isabel Peres Damiá Barceló Fernando Santana | 2010 | Journal of Environmental Sciences2010，22，10： | 2 |
| 6 | Effect of no-tillage on some soil physical properties of a structural degraded Petrocalcic Paleudoll of the southern “Pampa” of Argentina显示文摘 | L.A Ferreras J.L Costa F.O Garcia C Pecorari | | Soil & Tillage Research0，，： | 2 |
| 7 | Wheat response and residual soil properties following subsoiling of a sandy loam in eastern Montana显示文摘 | J.L Pikul J.K Aase | 1999 | Soil & Tillage Research1999，，1： | 2 |
| 8 | Activity-based disaggregate travel demand model system with activity schedules显示文摘 | J.L Bowman M.E Ben-Akiva | 2000 | Transportation Research Part A2000，，1： | 2 |
| 9 | Biomaterial developments for bone tissue engineering显示文摘 | Karen J.L Burg Scott Porter James F Kellam | 2000 | Biomaterials2000，，23： | 2 |
| 10 | Customer Power,Strategic Investment and the Failure of Leading Firms显示文摘 | Christensen C.M Bower J.L | | 0，，03： | 1 |
| 11 | 查看详情显示文摘 | del Olmo E Barboza B Ybarra M.I Lopez-Perez J.L Carron R Sevilla M.A Boselli C Feliciano A.S | | 0，，： | 1 |
| 12 | Health risks of genetically modified foods:Many opinions but few data显示文摘 | Domingo J.L | | 0，，： | 1 |
| 13 | Reflection on the determinants of voluntary turnover显示文摘 | Price J.L | | 0，，07： | 1 |
| 14 | Conscientiousness and the incidence of Alzheimer disease and mild cognitive impairment显示文摘 | Wilson R.S Schneider J.A Arnold S.E Bienias J.L & Bennett D.A | | 0，，10： | 1 |
| 15 | Insights into the repeat vacation phe-nomenon显示文摘 | Gitelson R.J Crompton J.L | | 0，，11： | 1 |
| 16 | Loyalty to supervisor versus organizational commitment:Relationships to employee performance in China显示文摘 | Chen Z.X Tsui A.S Farh J.L | | 0，，03： | 1 |
| 17 | Designing to learn about complex systems显示文摘 | Hmelo C.E Holton D.L Kolodner J.L | | 0，，03： | 1 |
| 18 | Effects of propylene glycol drenching on energy balance, plasma glucose, plasma insulin, ovarian function and conception in dairy cows显示文摘 | S Miyoshi J.L Pate D.L Palmquist | 2001 | Animal Reproduction Science2001，，1： | 1 |
| 19 | DNA methylation is a primary mechanism for silencing postmigratory primordial germ cell genes in both germ cell and somatic cell lineages显示文摘 | Maatouk D.M Kellam L.D Mann M.R W Lei H Li E Bartolomei M.S Rcsnick J.L | | 0，，17： | 1 |
| 20 | 查看详情显示文摘 | Vina D del Olmo E Lopez-Perez J.L Feliciano A.S | | 0，，： | 1 |
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