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| 1 | 农业生态系统中氮的利用效率与氮的管理显示文摘在生产玉米、水稻和小麦的作物系统中既要满足增长的食物需求又要保护环境质量,面对这样一个全球性的挑战,我们不知会成功还是会失败。要使发达国家大规模的作物系统和发展中国家小规模的作物系统中产量、利润和环境保护这三者之间的关系尽可能优化,关键就是要实现氮的供应与作物需求之间的同步性,既不多也不少。为了迎接挑战而制订的研究议程和有效政策,要求我们定量地理解当前这些系统中氮利用的效率及损失的水平、生物物理法控制这些要素的水平和采用改善后的管理措施所获得的经济回报水平。对于这些问题,尽管在基础生物学、生态学和生物地球化学方面的研究进展能提供一些答案,但我们不应该低估科学研究所遇到的重大挑战,因为在全世界很有限的生产耕地上作物系统必须保持产量增加,而对其中氮的控制日益困难。 | Kenneth G.Cassman Achim Dobermann Daniel T.Walters 李红 | 2002 | AMBIO-人类环境杂志2002，31，2： | 31 |
| 2 | Cereal area and nitrogen use efficiency are drivers of future nitrogen fertilizer consumption显示文摘At a global scale, cereal yields and fertilizer N consumption have increased in a near-linear fashion during the past 40 years and are highly correlated with one another. However,large differences exist in historical trends of N fertilizer usage and nitrogen use efficiency (NUE)among regions, countries, and crops. The reasons for these differences must be understood to estimate future N fertilizer requirements. Global nitrogen needs will depend on: (i) changes in cropped cereal area and the associated yield increases required to meet increasing cereal demand from population and income growth, and (ii) changes in NUE at the farm level. Our analysis indicates that the anticipated 38% increase in global cereal demand by 2025 can be met by a 30% increase in N use on cereals, provided that the steady decline in cereal harvest area is halted and the yield response to applied N can be increased by 20%. If losses of cereal cropping area continue at the rate of the past 20 years (-0.33% per year) and NUE cannot be increased substantially, a 60% increase in global N use on cereals would be required to meet cereal demand. Interventions to increase NUE and reduce N losses to the environment must be accomplished at the farm- or field-scale through a combination of improved technologies and carefully crafted local policies that contribute to the adoption of improved N management; uniform regional or national directives are unlikey to be effective at both sustaining yield increases and improving NUE. Examples from several countries show that increases in NUE at rates of 1% per year or more can be achieved if adequate investments are made in research and extension. Failure to arrest the decrease in cereal crop area and to improve NUE in the world's most important agricultural systems will likely cause severe damage to environmental services at local, regional, and global scales due to a large increase in reactive N load in the environment. | Achim Dobermann Kenneth G.Cassman | 2005 | Science China(Life Sciences)2005，48，z2： | 24 |
| 3 | 松辽盆地嫩江组油页岩发育控制因素显示文摘松辽盆地嫩江组一段和二段发育的油页岩是极其优质烃源岩,生物标志化合物参数指示油页岩母质生源主要来自于水生生物其繁盛受温湿气候和湖泊富营养化控制.岩石学、元素地球化学、生物标志化合物等参数表明,高盐和缺氧条件下的稳定水体分层是嫩一段油页岩沉积时期有机质保存的主控因素,而嫩二段油页岩沉积时期水体盐度分层明显减弱,此时藻类个体增大和孤立藻数量增多条件下的高生物生产力有利于有机质富集.为揭示嫩江组不同沉积环境下油页岩发育的控制因素,建立了嫩一段油页岩沉积时期保存条件控制和嫩二段油页岩沉积时期生物生产力控制的两种有机质富集模式,这对含氧淡水大型陆相湖泊的有机质富集成因探讨具有重要借鉴意义. | 贾建亮 刘招君 Achim Bechtel Reinhard F.Sachsenhofer 孙平昌 Susanne A.I.Strobl | 2014 | 地球科学(中国地质大学学报)2014，39，2： | 16 |
| 4 | 涡轮级轮缘封严内非定常流场的准三维LDV测量显示文摘研究涡轮级封严内流动和主流的相互作用、相互影响,进一步认识盘腔内燃气入侵等非定常现象,急需流场实验数据验证。针对轮缘封严内空间狭窄、光路安排困难等问题,本文发展了一种用于测量涡轮级轮缘封严内非定常流场的准三维LDV技术,即测量分两步,首先在机匣上安置二维测速系统用符合方式测出径向、切向速度及湍流度,再在轮毂内安置一维探头重复测量,从两次测量数据中计算出轴向速度;该技术借助锁相采样等技术能测出不同动静叶相对位置情况下封严及盘腔内的周期性非定常流场细节,本文给出了部分典型的动态流场测量结果。 | 马宏伟 Dieter E Bohn Achim Decker Bernd Rudzinski | 2004 | 航空动力学报2004，19，4： | 14 |
| 5 | 近千年青藏高原的温度变化显示文摘通过对昌都树轮δ^(18)C、达索普冰芯δ^(18)O和先前重建的整个高原温度序列的分析,以及与其他气候代用记录的比较,揭示了青藏高原近1000 a来的温度变化特征。依据昌都树轮δ^(18)C年表,指出青藏高原的中世纪暖期发生于1200- 1400AD,该时期的夏季温度比长期平均值或现代(20世纪,下同)约高1.2℃,小冰期(1400-1700AD)的夏季温度比长期平均值或现代约低0.5℃。近1000 a最暖的时期是13世纪,而最冷的时期是1000-1200 AD,温度比现代约低 0.9℃。20世纪的气候变暖主要表现在冬季温度的升高,同期的夏季温度呈微弱的下降趋势。 | 杨保 Achim Braeuning | 2006 | 气候变化研究进展2006，2，3： | 11 |
| 6 | 297例视网膜母细胞瘤的临床病理研究显示文摘目的探讨视网膜母细胞瘤(retinoblastoma,Rb)脉络膜浸润的形态学分期标准,为在统一的标准下进一步对该肿瘤进行临床病理研究。方法对摘除的297例原发性Rb患者的眼球组织标本,进行光镜观察。结果肿瘤侵犯球壁组织在形态学上可分为4期(色素上皮脉络膜分期):Ⅰ期,仅为视网膜色素上皮层受侵犯,玻璃体膜结构完整。Ⅱ期,玻璃体膜结构被破坏,脉络膜毛细血管层尚未被侵犯。Ⅲ期,肿瘤浸润深达脉络膜,靠近毛细血管层的中血管层内的小范围区域。Ⅳ期,大范围脉络膜浸润,巩膜可同时受累。Ⅳ期病死率为115%,Ⅰ~Ⅲ期的病死率为04%。结论色素上皮脉络膜分期可作为研究不同个体肿瘤细胞浸润程度进行比较的统一标准。 | 杨红 HARALD SCHILLING RUDOLF EFFERT ACHIM WESSING | 1999 | 中华眼科杂志1999，35，4： | 9 |
| 7 | Protective effects of ischemic preconditioning and application of lipoic acid prior to 90 min of hepatic ischemia in a rat model显示文摘AIM: To compare different preconditioning strategies to protect the liver from ischemia/reperfusion injury focusing on the expression of pro- and anti-apoptotic proteins. Interventions comprised different modes of ischemic preconditioning (IP) as well as pharmacologic pretreatment by α-lipoic acid (LA). METHODS: Several groups of rats were compared: sham operated animals, non-pretreated animals (nt), animals receiving IP (10 min of ischemia by clamping of the portal triad and 10 min of reperfusion) prior to sustained ischemia, animals receiving selective ischemic preconditioning (IPsel, 10 min of ischemia by selective clamping of the ischemic lobe and 10 min of reperfusion) prior to sustained ichemia, and animals receiving 500 μmol α-LA injected i.v. 15 min prior to the induction of 90 min of selective ischemia. RESULTS: Cellular damage was decreased only in the LA group. TUNEL-positive hepatocytes as well as necrotic hepatocyte injury were also decreased only by LA (19 ± 2 vs 10 ± 1, P < 0.05 and 29 ± 5 vs 12 ± 1, P < 0.05). Whereas caspase 3- activities in liver tissue were unchanged, caspase 9- activity in liver tissue was decreased only by LA pretreatment (3.1 ± 0.3 vs 1.8 ± 0.2, P < 0.05). Survival rate as the endpoint of liver function was increased after IP and LA pretreatment but not after IPsel. Levels of lipid peroxidation (LPO) in liver tissue were decreased in the IP as well as in the LA group compared to the nt group. Determination of pro- and anti-apoptotic proteins showed a shift towardsanti-apoptotic proteins by LA. In contrast, both our IP strategies failed to influence apototic cell death. CONCLUSION: IP, consisting of 10 min of ischemia and 10 min of reperfusion, protects only partly against ischemia/reperfusion injury of the liver prior to 90 min of selective ischemia. IPsel did not influence ischemic tolerance of the liver. LA improved tolerance to ischemia, possibly by downregulation of pro-apoptotic Bax. | Friedrich Duenschede Kirsten Erbes Nina Riegler Patrick Ewald Achim Kircher Stefanie Westermann Arno Schad Imke Miesmer Simon Albrecht-Schck Ines Gockel Alexandra K Kiemer Theodor Junginger | 2007 | World Journal of Gastroenterology2007，13，27： | 8 |
| 8 | EAF Quantum-新型电弧炉炼钢技术显示文摘概述了EAF Quantum电弧炉的最新发展和设计概况。Quantum电弧炉提高了自动化水平,在原料使用、废钢操作、运行和维修等方面进一步增大了灵活性和可靠性,降低了电能成本,在污染物排放和噪声治理方面具有较大优势。通过与现代连铸和轧制技术相结合,EAF Quantum电弧炉是长材和带钢短流程生产的理想选择。 | Apfel Jens Beile Hannes Winkhold Achim | 2018 | 河北冶金2018，，10： | 8 |
| 9 | Effect of human autologous serum and fetal bovine serum on human corneal epithelial cell viability,migration and proliferation in vitro显示文摘AIM: To analyze the concentration-dependent effects of autologous serum(AS) and fetal bovine serum(FBS) on human corneal epithelial cell(HCEC) viability, migration and proliferation.METHODS: AS was prepared from 13 patients with nonhealing epithelial defects Dulbecco's modified eagle medium/Ham's F12(DMEM/F12) with 5% FBS, 0.5% dimethyl sulphoxide(DMSO), 10 ng/m L human epidermal growth factor, 1% insulin-transferrin-selenium, then were incubated in serum media: DMEM/F12 supplemented by 5%, 10%, 15% or 30% AS or FBS. HCEC viability was analyzed using cell proliferation kit XTT, migration using a wound healing assay, proliferation by the cell proliferation enzyme-linked immunosorbent assay(ELISA) Brd U kit. Statistical analysis was performed using the generalized linear model, the values at 30% AS or 30% FBS were used as the baselines.RESULTS: HCEC viability was the highest at 30% AS or 15% FBS and the lowest at 10% AS or 30% FBS application. HCEC migration was the quickest through 30% AS or 30% FBS and the slowest through 5% AS or 5% FBS concentrations. Proliferation was the most increased through 15% AS or 5% FBS and the least increased through 30% AS or 30% FBS concentrations. HCEC viability at 10% and 15% AS was significantly worse(P=0.001, P=0.023) compared to baseline and significantly better at 15% FBS(P=0.003) concentrations. HCEC migration was significantly worse(P≤0.007) and HCEC proliferation significantly better(P<0.001) in all concentration groups compared to baseline.CONCLUSION: For the best viability of HCEC 30% AS or 15% FBS, for HCEC migration 30% AS or 30% FBS, for proliferation 15% AS or 5% FBS should be used. Therefore, we suggest the use of 30% AS in clinical practice. | Ming-Feng Wu Tanja Stachon Berthold Seitz Achim Langenbucher Nóra Szentmáry | 2017 | International Journal of Ophthalmology(English edition)2017，10，6： | 7 |
| 10 | Reduction of ischemia reperfusion injury after liver resection and hepatic inflow occlusion by α-lipoic acid in humans显示文摘AIM: To evaluate the protective effects of precondition- ing by α-lipoic acid (LA) in patients undergoing hepatic resection under inflow occlusion of the liver. METHODS: Twenty-four patients undergoing liver re- section for various reasons either received 600 mg LA or NaCl 15 min before transection performed under inflow occlusion of the liver. Blood samples and liver wedge bi- opsy samples were obtained after opening of the abdo- men immediately after inflow occlusion of the liver, and 30 min after the end of inflow occlusion of the liver. RESULTS: Serum levels of aspartate transferase and alanine transferase were reduced at all time points in patients who received LA in comparison to those who received NaCL. This was accompanied by reduced histo- morphological features of oncosis. We observed TUNEL- positive hepatocytes in the livers of the untreated patients, especially after 30 min of ischemia. LA attenu- ated this increase of TUNEL-positive hepatocytes. Under preconditioning with LA, ATP content was significantly enhanced after 30 min of ischemia and after 30 min of reperfusion. CONCLUSION: This is the first report on the poten- tial for LA reducing ischemia/reperfusion injury (IRI) of the liver in humans who were undergoing liver surgery. Beside its simple and rapid application, side effects did not occur. LA might therefore represent a new strategy against hepatic IRI in humans. | Fritz Dünschede Kirsten Erbes Achim Kircher Stefanie Westermann Joachim Seifert Arno Schad Kempski Oliver Alexandra K Kiemer Junginger Theodor | 2006 | World Journal of Gastroenterology2006，12，42： | 6 |
| 11 | Energy balance closure at FLUXNET sites显示文摘 | Kell Wilson Allen Goldstein Eva Falge Marc Aubinet Dennis Baldocchi Paul Berbigier Christian Bernhofer Reinhart Ceulemans Han Dolman Chris Field Achim Grelle Andreas Ibrom B.E Law Andy Kowalski Tilden Meyers John Moncrieff Russ Monson Walter Oechel John T | 2002 | Agricultural and Forest Meteorology2002，，1： | 4 |
| 12 | Stochastic resonance whole body vibration reduces musculoskeletal pain:A randomized controlled trial显示文摘AIM:To examined the effects of stochastic resonance whole-body vibration training on musculoskeletal pain in young healthy individuals.METHODS:Participants were 43 undergraduate students of a Swiss University.The study was designed as a randomized controlled trial(RCT)with randomized group allocation.The RCT consisted of two groups each given 12 training sessions during four weeks with either 5 Hz-Training frequency(training condition)or 1.5 Hz Training frequency(control condition).Outcome was current musculoskeletal pain assessed in the evening on each day during the four week training period.RESULTS:Multilevel regression analysis showed musculoskeletal pain was significantly decreased in the training condition whereas there was no change in the control condition(B=-0.023,SE=0.010,P=0.021).Decrease in current musculoskeletal pain over four weeks was linear.CONCLUSION:Stochastic resonance whole-body vibration reduced musculoskeletal pain in young healthy individuals.Stochastic resonance vibration and not any other exercise component within training caused pain reduction. | Achim Elfering Jan Thomann Volker Schade Lorenz Radlinger | 2011 | World Journal of Orthopedics2011，2，12： | 4 |
| 13 | Stochastic resonance whole body vibration increases perceived muscle relaxation but not cardiovascular activation:A randomized controlled trial显示文摘AIM To investigate the acute effects of stochastic resonance whole body vibration(SR-WBV), including muscle relaxation and cardiovascular activation.METHODS Sixty-four healthy students participated. The participants were randomly assigned to sham SR-WBV training at a low intensity(1.5 Hz) or a verum SR-WBV training at a higher intensity(5 Hz). Systolic blood pressure(SBP), diastolic blood pressure(DBP), heart rate(HR) and selfreported muscle relaxation were assessed before and immediately after SR-WBV.RESULTS Two factorial analyses of variance(ANOVA) showed a significant interaction between pre- vs post-SR-WBVmeasurements and SR-WBV conditions for muscle relaxation in the neck and back [F(1,55) = 3.35, P = 0.048, η2 = 0.07]. Muscle relaxation in the neck and back increased in verum SR-WBV, but not in sham SR-WBV. No significant changes between pre- and post-training levels of SBD, DBD and HR were observed either in sham or verum SR-WBV conditions. With verum SR-WBV, improved muscle relaxation was the most significant in participants who reported the experience of back, neck or shoulder pain more than once a month(P < 0.05).CONCLUSION A single session of SR-WBV increased muscle relaxation in young healthy individuals, while cardiovascular load was low. An increase in musculoskeletal relaxation in the neck and back is a potential mediator of pain reduction in preventive worksite SR-WBV trials. | Achim Elfering Christian Burger Volker Schade Lorenz Radlinger | 2016 | World Journal of Orthopedics2016，7，11： | 4 |
| 14 | Prostate cancer upgrading or downgrading of biopsy Gleason scores at radical prostatectomy:prediction of'regression to the mean'using routine clinical features with correlating biochemical relapse rates显示文摘Recommendations for managing clinically localized prostate cancer are structured around clinical risk criteria,with prostate biopsy(PB)Gleason score(GS)being the most important factor.Biopsy to radical prostatectomy(RP)specimen upgrading/downgrading is welldescribed,and is often the ratio nale for costly imaging or genomic studies.We prese nt simple,no-cost an a lyses of clinical parametersto predict which GS 6 and GS 8 patients will change to GS 7 at prostatectomy.From May 2006 to December 2012,1590 patientsunderwent robot-assisted radical prostatectomy(RARP).After exclusions,we identified a GS 6 cohort of 374 patients and a GS 8cohort of 91 patients.During this era,>1000 additional patients were enrolled in an active surveillanee(AS)program.For GS 6,265(70.9%)of 374 patients were upgraded,and the cohort included 183(48.9%)patients eligible for AS by the Prostate Cancer ResearchInternational Active Surveillance Study(PRIAS)standards,of which 57.9%were upgraded.PB features that predicted a>90%chanceof upgrading included≥7 cores positive,maximum foci length≥8 mm in any core,and total tumor involvement≥30%.For GS 8,downgrading occurred in 46(50.5%),which was significantly higher for single core versus multiple cores(80.4%vs 19.6%,P=0.011).Biochemical recurre nee(BCR)occurred in 3.4%of GS 6 upgraded versus 0%non upgraded,and in GS 8,19.6%downgraded versus42.2%nondown graded.In coun seling men with clin ically localized prostate can cer,the odds of GS cha nge should be presented,andcertain men with high-volume GS 6 or low-volume GS 8 can be counseled with GS 7-based recommendations. | Muammer Altok Patricia Troncoso Mary F Achim Surena F Matin Graciela N Gonzalez John W Davis | 2019 | Asian Journal of Andrology2019，21，6： | 4 |
| 15 | Bcl-x_L and Myeloid cell leukaemia-1 contribute to apoptosis resistance of colorectal cancer cells显示文摘AIM: To explore the role of Bcl-xL and Myeloid cell leukaemia (Mcl)-1 for the apoptosis resistance of colorectal carcinoma (CRC) cells towards current treat-ment modalities. METHODS: Bcl-xL and Mcl-1 mRNA and protein ex-pression were analyzed in CRC cell lines as well as human CRC tissue by Western blot,quantitative PCRand immunohistochemistry. Bcl-xL and Mcl-1 protein expression was knocked down or increased in CRC cell lines by applying specific siRNAs or expression plas-mids,respectively. After modulation of protein expres-sion,CRC cells were treated with chemotherapeutic agents,an antagonistic epidermal growth factor recep-tor (EGFR1) antibody,an EGFR1 tyrosine kinase inhibi-tor,or with the death receptor ligand TRAIL. Apoptosis induction and cell viability were analyzed. RESULTS: Here we show that in human CRC tis-sue and various CRC cell lines both Bcl-xL and Mcl-1 are expressed. Bcl-xL expression was higher in CRC tissue than in surrounding non-malignant tissue,both on protein and mRNA level. Mcl-1 mRNA expression was significantly lower in ma-lignant tissues. However,protein expression was slightly higher. Viability rates of CRC cells were significantly decreased after knock down of Bcl-xL expression,and,to a lower extent,after knock down of Mcl-1 expression. Furthermore,cells with reduced Bcl-xL or Mcl-1 expression was more sensitive towards oxaliplatin-and irinotecan-induced apoptosis,and in the case of Bcl-xL also towards 5-FU-induced apoptosis. On the other hand,upregulation of Bcl-xL by transfec-tion of an expression plasmid decreased chemothera-peutic drug-induced apoptosis. EGF treatment clearly induced Bcl-xL and Mcl-1 expression in CRC cells. Apop-tosis induction upon EGFR1 blockage by cetuximab or PD168393 was increased by inhibiting Mcl-1 and Bcl-xL expression. More strikingly,CD95-and TRAIL-induced apoptosis was increased by Bcl-xL knock down. CONCLUSION: Our data suggest that Bcl-xL and,to a lower extent,Mcl-1,are important anti-apoptotic factors in CRC. Specific downregulation of Bcl-xL is a promising approach to sensitize CRC cells towards chemotherapy and targeted therapy. | Henning Schulze-Bergkamen Roland Ehrenberg Lothar Hickmann Binje Vick Toni Urbanik Christoph C Schimanski Martin R Berger Arno Schad Achim Weber Steffen Heeger Peter R Galle Markus Moehler | 2008 | World Journal of Gastroenterology2008，14，24： | 4 |
| 16 | Isolated subcutaneous implantation of a borderline ovarian tumor:A case report and review of the literature显示文摘Laparoscopy-related tumor implantations of gynecological malignancies into the subcutaneous tissue are rarely diagnosed.We report an interesting case of a 46-year-old female who presented with an abdominal subcutaneous metastasis of a borderline ovarian tumor.The patient received a laparoscopic unilateral adnexectomy for a solid-cystic tumor of the right ovary.Histopathological workup showed a papillary borderline tumor of mucinous type.Nine days later she underwent a hysterectomy,left adnexectomy,appendectomy and omentectomy.Exploration of the peritoneum revealed no intraperitoneal implants.Further exploration showed a non-invasive implant of a borderline tumor in the subcutaneous tissue above the fascia that had no contact to the peritoneum.It is hypothesized that tumor cells may have been implanted during a previous laparoscopy,the most recent of which had been fourteen years prior to her current presentation.Various risk factors for port-site malignancies have been identified.Tumor manipulation and extraction of tumor tissue without a protective bag may contribute to development of trocarsite metastasis. | Malgorzata Banys-Paluchowski Borsu Yeganeh Jutta Luettges Achim Maibach Ruediger Langenberg Natalia Krawczyk Peter Paluchowski Holger Maul Gerhard Gebauer | 2016 | World Journal of Clinical Oncology2016，7，2： | 4 |
| 17 | 圆锥角膜穿透性角膜移植术后缝线相关的角膜规则程度的动态变化显示文摘目的分析圆锥角膜(KC)手术前后角膜规则程度的变化,以及角膜缝线拆除对角膜规则程度的影响,对激光穿透性角膜移植手术(PK)在KC治疗中的作用进行评价。方法回顾分析了236例圆锥角膜使用激光环钻技术进行的穿透性角膜移植手术手术,使用角膜曲率计(Ophthalmometer,Type-H,190071Zeiss,Jena,Germany)对手术前后的角膜规则程度进行检测,并结合所测出的角膜曲率(K)值和角膜映光图像分成4组:(0)规则组,K〈50D;(1)轻度不规则组,K〈60;(2)中度不规则组,K≥60;(3)重度不规则组,K值不能读出,共4组。手术后第12、18个月依次拆除连续缝线,并同时随访记录各组别角膜规则程度,动态分析以上三个时间点角膜规则程度的变化特点。结果在三个时间点,规则组比例的递增趋势为4%-37%-61%轻度不规则组的变化趋势为12%-51%-33‰中度不规则组的递减趋势为38%-10%-4%;重度不规则组的变化趋势为46%-2%-2%。结论使用激光环钻和16针双线连续缝合的圆锥角膜手术病例中,穿透性角膜移植手术能有效改善病人的角膜表面规则程度,与缝线拆除相关的角膜规则程度呈动态变化,该变化主要发生在轻、中度组,缝线拆除本身并不会导致术后角膜规则程度下降。 | 刘毅 Berthold Seitz Achim Langenbucher Nhung X.Nguyen Gottfried O.H.Naumann | 2007 | 中国实用眼科杂志2007，25，4： | 3 |
| 18 | Spatial metabolomics for evaluating response to neoadjuvant therapy in non-small cell lung cancer patients显示文摘Background:The response to neoadjuvant chemotherapy(NAC)differs substantially among individual patients with non-small cell lung cancer(NSCLC).Major pathological response(MPR)is a histomorphological read-out used to assess treatment response and prognosis in patientsNSCLC afterNAC.Although spatial metabolomics is a promising tool for evaluating metabolic phenotypes,it has not yet been utilized to assess therapy responses in patients with NSCLC.We evaluated the potential application of spatial metabolomics in cancer tissues to assess the response to NAC,using a metabolic classifier that utilizes mass spectrometry imaging combined with machine learning.Methods:Resected NSCLC tissue specimens obtained after NAC(n=88)were subjected to high-resolution mass spectrometry,and these data were used to develop an approach for assessing the response to NAC in patients with NSCLC.The specificities of the generated tumor cell and stroma classifiers were validated by applying this approach to a cohort of biologically matched chemotherapy-naive patients with NSCLC(n=85).Results:The developed tumor cell metabolic classifier stratified patients into different prognostic groups with 81.6%accuracy,whereas the stroma metabolic classifier displayed 78.4%accuracy.By contrast,the accuracies of MPR and TNM staging for stratification were 62.5%and 54.1%,respectively.The combination of metabolic and MPR classifiers showed slightly lower accuracy than either individual metabolic classifier.In multivariate analysis,metabolic classifiers were the only independent prognostic factors identified(tumor:P=0.001,hazards ratio[HR]=3.823,95%confidence interval[CI]=1.716-8.514;stroma:P=0.049,HR=2.180,95%CI=1.004-4.737),whereasMPR(P=0.804;HR=0.913;95%CI=0.445-1.874)and TNM staging(P=0.078;HR=1.223;95%CI=0.977-1.550)were not independent prognostic factors.Using Kaplan-Meier survival analyses,both tumor and stroma metabolic classifiers were able to further stratify patients as NAC responders(P<0.001)and non-responders(P<0.001).Conclusions:Our findings indicate that the metabolic constitutions of both tumor cells and the stroma are valuable additions to the classical histomorphology-based assessment of tumor response. | Jian Shen Na Sun Philipp Zens Thomas Kunzke Achim Buck Verena M.Prade Jun Wang Qian Wang Ronggui Hu Annette Feuchtinger Sabina Berezowska Axel Walch | 2022 | Cancer Communications2022，42，6： | 3 |
| 19 | Stability analysis of a thin-walled cylinder in turning operation using the semi-discretization method显示文摘In this work, the stability of a flexible thin cylindrical workpiece in turning is analyzed. A process model is derived based on a finite element representation of the workpiece flexibility and a nonlinear cutting force law. Repeated cutting of the same surface due to overlapping cuts is modeled with the help of a time delay. The stability of the so obtained system of periodic delay differential equations is then determined using an approximation as a time-discrete system and Floquet theory. The time-discrete system is obtained using the semi-discretization method. The method is implemented to analyze the stability of two different workpiece models of different thicknesses for different tool positions with respect to the jaw end. It is shown that the stability chart depends on the tool position as well as on the thickness. | Arnab Chanda Achim Fischer Peter Eberhard Santosha Kumar Dwivedy | 2014 | Acta Mechanica Sinica2014，30，2： | 3 |
| 20 | Vitamin E:non-antioxidantroles显示文摘 | Angelo Azzi Achim Stocker | 2000 | Progress in Lipid Research2000，39，： | 3 |
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