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238篇 您的检索式:作者名="ALEXIS D"
    题名 作者 年代 出处 被引量
1High-Throughput Measurements of Stem Characteristics to Estimate Ear Density and Above-Ground Biomass显示文摘Total above-ground biomass at harvest and ear density are two important traits that characterize wheat genotypes.Two experiments were carried out in two different sites where several genotypes were grown under contrasted irrigation and nitrogen treatments.A high spatial resolution RGB camera was used to capture the residual stems standing straight after the cutting by the combine machine during harvest.It provided a ground spatial resolution better than 0.2 mm.A Faster Regional Convolutional Neural Network(Faster-RCNN)deep-learning model was first trained to identify the stems cross section.Results showed that the identification provided precision and recall close to 95%.Further,the balance between precision and recall allowed getting accurate estimates of the stem density with a relative RMSE close to 7%and robustness across the two experimental sites.The estimated stem density was also compared with the ear density measured in the field with traditional methods.A very high correlation was found with almost no bias,indicating that the stem density could be a good proxy of the ear density.The heritability/repeatability evaluated over 16 genotypes in one of the two experiments was slightly higher(80%)than that of the ear density(78%).The diameter of each stem was computed from the profile of gray values in the extracts of the stem cross section.Results show that the stem diameters follow a gamma distribution over eachmicroplot with an average diameter close to 2.0mm.Finally,the biovolume computed as the product of the average stem diameter,the stem density,and plant height is closely related to the above-ground biomass at harvest with a relative RMSE of 6%.Possible limitations of the findings and future applications are finally discussed.Xiuliang Jin Simon Madec Dan Dutartre Benoit de Solan Alexis Comar Frédéric Baret 2019Plant Phenomics2019,1,1:5
2Effect of serum γ-glutamyltranferase and albumin levels on the response to cardiac resynchronization therapy in the elderly显示文摘Background Several liver function tests have been identified as predictors of hospitalization for heart failure(HF) and death in patients with chronic HF. The relationship between serum γ-glutamyltranferase(GGT) and albumin(SA) levels with the response to cardiac resynchronization therapy(CRT) has not been reliably determined. The aim of the study was to evaluate the impact of liver function tests on the results of CRT in the elderly. Methods Baseline GGT and SA were assessed before CRT device implantation in the elderly(> 70-year-old) patients. The endpoints were:(1) CRT response defined as > 5% left ventricular ejection fraction improvement and no hospitalization for HF or cardiovascular death;(2) hospitalizations;and(3) mortality. Results Eighty of 138(58%) included patients were responders at nine months. Compared to responders, the SA levels were not significantly different(35.1 ± 5.4 vs. 33.6 ± 5.5 g/L, P = 0.103);but the GGT levels, higher(81.6 ± 69.3 vs. 54.7 ± 49.6 U/L, P = 0.013) in non-responders to CRT. GGT level was independently associated with non-response to CRT(P < 0.001, OR = 0.17;95% CI: 0.08–0.38, P < 0.001). GGT cut-off value ≥ 55 U/L was highly predictive of non-response [AUC = 0.65, 64% Sensitivity, 69% Specificity(95% CI: 0.56–0.74)]. GGT ≥ 55 U/L was also associated with higher risk of hospitalization for atrial fibrillation(AF)(95% vs. 83%, P = 0.024). Both SA and GGT had no impact on overall(P = 0.220, P = 0.723) mortality. Conclusions Higher level of GGT is an independent predictor of non-response to CRT in patients over age 70 years and is associated with higher risk of hospitalization for AF. Baseline serum levels of albumin and GGT and have no impact on mortality in elderly patients undergoing CRT.Maciej Kubala Alexis Hermida Otilia Buiciuc Pierre-Marc Lallemand Geneviève Bertaina Frédéric Anselme Didier Klug Momar Diouf Jean-Sylvain Hermida 2020Journal of Geriatric Cardiology2020,17,6:3
3Global Wheat Head Detection 2021:An Improved Dataset for Benchmarking Wheat Head Detection Methods显示文摘The Global Wheat Head Detection(GWHD)dataset was created in 2020 and has assembled 193,634 labelled wheat heads from 4700 RGB images acquired from various acquisition platforms and 7 countries/institutions.With an associated competition hosted in Kaggle,GWHD_2020 has successfully attracted attention from both the computer vision and agricultural science communities.From this first experience,a few avenues for improvements have been identified regarding data size,head diversity,and label reliability.To address these issues,the 2020 dataset has been reexamined,relabeled,and complemented by adding 1722 images from 5 additional countries,allowing for 81,553 additional wheat heads.We now release in 2021 a new version of the Global Wheat Head Detection dataset,which is bigger,more diverse,and less noisy than the GWHD_2020 version.Etienne David Mario Serouart Daniel Smith Simon Madec Kaaviya Velumani Shouyang Liu Xu Wang Francisco Pinto Shahameh Shafiee Izzat SATahir Hisashi Tsujimoto Shuhei Nasuda Bangyou Zheng Norbert Kirchgessner Helge Aasen Andreas Hund Pouria Sadhegi-Tehran Koichi Nagasawa Goro Ishikawa Sébastien Dandrifosse Alexis Carlier Benjamin Dumont Benoit Mercatoris Byron Evers Ken Kuroki Haozhou Wang Masanori Ishii Minhajul ABadhon Curtis Pozniak David Shaner LeBauer Morten Lillemo Jesse Poland Scott Chapman Benoit de Solan Frédéric Baret Ian Stavness Wei Guo 2021Plant Phenomics2021,3,1:2
4Clinical applications of advanced magnetic resonance imaging techniques for arthritis evaluation显示文摘Magnetic resonance imaging(MRI) has allowed a comprehensive evaluation of articular disease, increasing the detection of early cartilage involvement, bone erosions, and edema in soft tissue and bone marrow compared to other imaging techniques. In the era of functional imaging, new advanced MRI sequences are being successfully applied for articular evaluation in cases of inflammatory, infectious, and degenerative arthropathies. Diffusion weighted imaging, new fat suppression techniques such as DIXON, dynamic contrast enhanced-MRI, and specific T2 mapping cartilage sequences allow a better understanding of the physiopathological processes that underlie these different arthropathies. They provide valuable quantitative information that aids in their differentiation and can be used as potential biomarkers of articular disease course and treatment response.Teodoro Martín Noguerol Antonio Luna Marta Gómez Cabrera Alexie D Riofrio 2017World Journal of Orthopedics2017,8,9:2
5Effect of catalyst structure on oxidative dehydrogenation of ethane and propane on alumina-supported vanadia显示文摘Morris D Argyle Kaidong Chen Alexis T Bell 2002J Catal2002,208,:2
6Structural Flexibility Enables Alternative Maturation, ARGONAUTE Sorting and Activities of miR168, a Global Gene Silencing Regulator in Plants显示文摘在优核质, RNase-III Dicer 经常生产长度 / 顺序 microRNA (miRNA ) 变体,叫的 isomiRs,由于 miRNA 先锋(pre-miRNAs ) 的内在的 structural/sequence 决定因素。在这研究,我们联合了学习 Arabidopsis miR168 的生物物理学,遗传和生物化学途径,中央植物 silencing 受动器蛋白质 ARGONAUTE1 (AGO1 ) 的关键反馈管理者。我们识别了在植物 pre-miR168 orthologs 之中保存的一个主题,它启用灵活内部基础配对的位于 \O 下面至少三种亚稳的结构的配置。这些配置支持与行动的特殊以前排序的性质和模式产生长度和结构的 isomiR168 变体的其他的、精确 Dicer 劈开事件。在这些 isomiR168s 之中,一与 22-nt 指南海滨双为 AGO10 展出惊人地优先的亲密关系,最靠近的 AGO1 paralog。22-nt miR168-AGO10 建筑群反对 AGO1 累积在 ? 经由及物的 RNAi 的部分,一个沉默扩大过程,维持 ? 适当 AGO1 细胞的动态平衡。而且,我们发现 tombusviral P19 silencing-suppressor 蛋白质在它的 isomiR168 货物之中为 22-nt 形式显示显著地更弱的亲密关系,从而支持调停 AGO1 的抗病毒的 silencing 的指导 AGO10 的抑制。一起拿,这些调查结果显示那结构的灵活性, pre-miRNAs 的一个以前俯看的性质,更加增加通用性和单个 MIRNA 基因,和病原体可能发展了的那一些的规章的潜力能力或机制篡夺这个性质。Taichiro Iki Antoine Cléry Nicolas G. Bologna Alexis Sarazin Christopher A. Brosnan Nathan Pumplin Frédéric H.T. Allain Olivier Voinnet 2018Molecular Plant2018,11,8:2
7Steady-state studies显示文摘Michael D Rhodes Bell Alexis T The effects of zirconia morphology on methanol synthesis from CO and H2 over Cu/ZrO2 catalysts Part I 2005Journal of Catalysis2005,233,:1
8Epithelioid angiosarcoma of the adrenal gland associated with chronic arsenical intoxication? 显示文摘Livaditou A Alexiou G Floros D 1991Pathol Res Pract1991,187,23:1
9Expression patterns of the novel catenin p120cas in gastrointestinal cancers显示文摘Karayiannakis AJ Syrigos KN Alexiou D 1999Anticancer Res1999,19,5:1
10Synthesis of Tungsten Oxide Thin Film by Liquid Phase Deposition显示文摘Shigehito D Alexis B B Yuki K 2010Materials Chemistry and Physics2010,123,:1
11Clinical significance of Serum levels of E-selectin,intercellular adhesion molecule-l,and vascular cell adhesion molecule-1 in gastric cancer patients显示文摘Alexiou D Karayiannakis AJ Syrigos KN 2003Am J Gastroenterol2003,98,2:1
12Do women live longer following lung resection for carcinoma 显示文摘Alexiou C Onyeaka CV Beggs D 2002Eur J Cardliothorae Surg2002,21,:1
13Chronic stress induces upregulation of brain-derived neurotrophic factor (BDNF) mRNA and integrin α- expression in the rat pineal gland 显示文摘ALEXIES DS RODRIGO Z C GABRIELA D V 2006Brian Res2006,1086,:1
14Serum levels of E-selectin,ICAM-1 and VCAM-1 in colorectal cancer patients:correlations with clinicopathological features,patieht survival and tumour surgery显示文摘Alexiou D Karayiannakis AJ Syrigos KN 2001EurJ Cancer2001,37,18:1
15Clinical significance of8emm levels of E-seleetin,intercellular adhesion molecule-1 and vascular cell adhesiOn moleeule-1 in gastric c Ⅱ ncer patlent显示文摘Alexiou D Karayiannakis AJ Syrigos KN 2003Am J Gastroenterol2003,98,2:1
16Poly (vinyl alcohol) stabilization in thermoplastic processing 显示文摘ALEXY P KACHOVA D KRSIAK M 2002Polym Degrad Stab2002,78,:1
17Novel n-demethylation of ketolide:application to the solution phase paralld synthesis of N-desosaminyl-substituted ketolides using ion exchange resins显示文摘ALEXIS D CHRISTELLE R 2002Tetrahedron Letters2002,43,:1
182-D laser scanners for automobile applications显示文摘Alexis D Nicolas T Eric L 2004生産研究2004,56,1:1
19Cooperative and Noncooperative R&D in Duopoly with Spillovers显示文摘D'Asprement Claude and Alexis Jaquemin 1988American Economic Review1988,,:1
20Serum levels of E-selectin, ICAM-1 and VCAM-1 in colorectal cancer patients: correlations with clinicopathological features, patient survival and tumour surgery 显示文摘Alexiou D Karayiannakis A J Syrigos K N 2001Eur J Cancer2001,37,18:1
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