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| 1 | 利用GOME卫星资料分析北京大气NO_2污染变化显示文摘利用GOME(Global Ozone Monitoring Experiment,全球臭氧监测实验)1996年1月—2002年12月NO2对流层柱浓度月平均卫星遥感资料以及根据北京市2001年1月1日—2002年12月31日NO2污染指数数据计算出的地面NO2日均质量浓度值,分析了北京市城市大气NO2污染变化的季节变化特征以及年际变化,并将2001年1月—2002年12月北京上空GOME NO2对流层柱浓度月平均值变化与北京市地面NO2日均质量浓度月平均值变化进行了比较,结果表明两者随时间的变化趋势具有较好的一致性,据此可以利用GOME NO2对流层柱浓度月平均卫星遥感资料来分析特定区域大气NO2的季节变化和年际变化。 | 江文华 马建中 颜鹏 Andreas Richter John P.Burrows Hendrik Nǖβ | 2006 | 应用气象学报2006,17,1: | 47 |
| 2 | 黄芪植入可控降解胶原支架控释促血管生成的效应显示文摘目的:将中药黄芪载入胶原支架内,通过对胶原支架进行修饰,观察黄芪能否代替生长因子起到促进血管生成疗效,并了解黄芪与生长因子是否有协同作用。方法:实验于2004-07-01/2006-07-01在德国亚琛工业大学生化研究所及江苏省中医院中心实验室进行。首先通过不同的EDC/NHS与肝素钠比例来交链修饰Ⅰ型胶原(EDC与NHS质量比固定为1∶0.6,EDC与肝素钠比例为0.2 ̄4),然后将1mL黄芪注射液(相当于3mg生药黄芪)载入修饰后的胶原内。体外通过甲苯胺蓝法测定修饰后胶原内肝素含量,胶原酶降解法测量胶原体外降解率,同时对胶原的亲水性及自由氨基团进行测定。体内通过鸡胚绒毛尿囊膜模型进行血管计数及血红蛋白测定。结果:①体外实验结果:通过对胶原的修饰程度,可以控制胶原内的肝素含量、体外降解率、自由氨基团含量、亲水性大小。②体内实验结果:黄芪注射液1mL载入修饰后的胶原较载入未修饰的胶原,可以明显促进鸡胚绒毛尿囊膜内微血管生成,提高胶原内血红蛋白含量(P<0.01),其疗效与重组人体血管内皮生长因子载入修饰后的胶原内相当,且与血管内皮生长因子有协同作用的趋势。结论:通过对胶原的修饰来控制胶原的体外降解,载入黄芪后,使黄芪促血管生成疗效增强,达到与血管内皮生长因子载入后的疗效相当,其作用机制有待进一步研究。 | 陈晓虎 姚昶 Andreas Groerge 黄峻 朱永康 潘立群 唐蜀华 许芝银 N Pallua GCM Steffens | 2007 | 中国组织工程研究与临床康复2007,11,31: | 13 |
| 3 | An integrated approach for increasing breeding efficiency in apple and peach in Europe显示文摘Despite the availability of whole genome sequences of apple and peach,there has been a considerable gap between genomics and breeding.To bridge the gap,the European Union funded the FruitBreedomics project(March 2011 to August 2015)involving 28 research institutes and private companies.Three complementary approaches were pursued:(i)tool and software development,(ii)deciphering genetic control of main horticultural traits taking into account allelic diversity and(iii)developing plant materials,tools and methodologies for breeders.Decisive breakthroughs were made including the making available of ready-to-go DNA diagnostic tests for Marker Assisted Breeding,development of new,dense SNP arrays in apple and peach,new phenotypic methods for some complex traits,software for gene/QTL discovery on breeding germplasm via Pedigree Based Analysis(PBA).This resulted in the discovery of highly predictive molecular markers for traits of horticultural interest via PBA and via Genome Wide Association Studies(GWAS)on several European genebank collections.FruitBreedomics also developed pre-breeding plant materials in which multiple sources of resistance were pyramided and software that can support breeders in their selection activities.Through FruitBreedomics,significant progresses were made in the field of apple and peach breeding,genetics,genomics and bioinformatics of which advantage will be made by breeders,germplasm curators and scientists.A major part of the data collected during the project has been stored in the FruitBreedomics database and has been made available to the public.This review covers the scientific discoveries made in this major endeavour,and perspective in the apple and peach breeding and genomics in Europe and beyond. | Francois Laurens Maria JoséAranzana Pere Arus Daniele Bassi Marco Bink Joan Bonany Andrea Caprera Luca Corelli-Grappadelli Evelyne Costes Charles-Eric Durel Jehan-Baptiste Mauroux Hélène Muranty Nelson Nazzicari Thierry Pascal Andrea Patocchi Andreas Peil Bénédicte Quilot-Turion Laura Rossini Alessandra Stella Michela Troggio Riccardo Velasco Eric van de Weg | 2018 | Horticulture Research2018,5,1: | 10 |
| 4 | Restoration of energy level in the early phase of acute pediatric pancreatitis显示文摘Acute pancreatitis (AP) is a serious inflammatory disease with rising incidence both in the adult and pediatric populations. It has been shown that mitochondrial injury and energy depletion are the earliest intracellular events in the early phase of AP. Moreover, it has been revealed that restoration of intracellular ATP level restores cellular functions and defends the cells from death. We have recently shown in a systematic review and meta-analysis that early enteral feeding is beneficial in adults; however, no reviews are available concerning the effect of early enteral feeding in pediatric AP. In this minireview, our aim was to systematically analyse the literature on the treatmentof acute pediatric pancreatitis. The preferred reporting items for systematic review(PRISMA-P) were followed, and the question was drafted based on participants, intervention, comparison and outcomes: P: patients under the age of twenty-one suffering from acute pancreatitis; I: early enteral nutrition (per os and nasogastric- or nasojejunal tube started within 48 h); C: nil per os therapy; O: length of hospitalization, need for treatment at an intensive care unit, development of severe AP, lung injury (including lung oedema and pleural effusion), white blood cell count and pain score on admission. Altogether, 632 articles (Pub Med: 131; EMBASE: 501) were found. After detailed screening of eligible papers, five of them met inclusion criteria. Only retrospective clinical trials were available. Due to insufficient information from the authors, it was only possible to address length of hospitalization as an outcome of the study. Our mini-meta-analysis showed that early enteral nutrition significantly(SD = 0.806, P = 0.034) decreases length of hospitalization compared with nil per os diet in acute pediatric pancreatitis. In this minireview, we clearly show that early enteral nutrition, started within 24-48 h, is beneficial in acute pediatric pancreatitis. Prospective studies and better presentation of research are crucially needed to achieve a higher level of evidence. | Dóra Mosztbacher Nelli Farkas Margit Solymár Gabriella Pár Judit Bajor ákos Szucs József Czimmer Katalin Márta Alexandra Mikó Zoltán Rumbus Péter Varjú Péter Hegyi Andrea Párniczky | 2017 | World Journal of Gastroenterology2017,23,6: | 8 |
| 5 | Helicobacter pylori and corpus gastric pathology are associated with lower serum ghrelin显示文摘AIM To evaluate the association of Helicobacter pylori(H. pylori), cag A genotype, and type of gastric pathology with ghrelin, leptin and nutritional status.METHODS Fasted dyspeptic adults(18-70 years) referred for an upper digestive endoscopy were enrolled in this crosssectional study. Height and weight were assessed for body mass index(BMI) calculation. A sociodemographic survey was administered and nutrient intake was evaluated with 24 h dietary recalls. Serum total ghrelin and leptin levels were analyzed by enzymelinked immunosorbent assay. 13 C-Urea Breath Test was performed and four gastric biopsies were obtained during endoscopy for histopathology and H. pylori DNA amplification and genotyping. Data analysis was performed using χ2, Mann-Whitney U, Kruskal-Wallis tests, Spearman's correlation and linear regression.RESULTS One hundred and sixty-three patients(40.8 ± 14.0 years), 98/65 females/males, were included. Overall, persistent H. pylori prevalence was 53.4%(95%CI: 45.7%-65.8%). Neither nutrient intake nor BMI differed significantly between H. pylori positive and negative groups. Serum ghrelin was significantly lower in infected patients [median 311.0 pg/m L(IQR 230.0-385.5)] than in uninfected ones [median 355.0 pg/m L(IQR 253.8-547.8)](P = 0.025), even after adjusting for BMI and gender(P = 0.03). Ghrelin levels tended to be lower in patients carrying cag A positive strains both in the antrum and the corpus; however, differences with those carrying cag A negative strains did not reach statistical significance(P = 0.50 and P = 0.49, respectively). In addition, the type and severity of gastric pathology in the corpus was associated with lower serum ghrelin(P = 0.04), independently of H.pylori status. Conversely, leptin levels did not differ significantly between infected and uninfected patients [median 1.84 ng/m L(0.80-4.85) vs 1.84 ng/m L(0.50-5.09),(P = 0.51)]. CONCLUSION H. pylori infection and severity of gastric corpus pathology are associated with lower serum ghrelin. Further studies could confirm a lower ghrelin prevalence in cag A-positive patients. | Paula Mantero Gonzalo Sebastián Matus Rodolfo Ernesto Corti Ana María Cabanne Gerardo Gabriel Zerbetto de Palma Liliana Marchesi Olid María Marta Piskorz Marcela Beatriz Zubillaga Mariana Andrea Janjetic Cinthia Gabriela Goldman | 2018 | World Journal of Gastroenterology2018,24,3: | 8 |
| 6 | 黄芪对肝素修饰后胶原促血管再生的影响显示文摘目的:血管再生已经成为治疗心脏搭桥手术不能完全缓解的严重冠状动脉疾病的新型治疗措施。本研究主要探讨中药黄芪、血管内皮生长因子载入修饰后的胶原促血管再生的疗效,并探求黄芪与生长因子有无协同作用。方法:以定量计数胶原周围微血管再生数量、胶原内血红蛋白含量、胶原干重、对胶原内血管生长的病理免疫组化标记等指标来考察黄芪对肝素修饰后胶原促血管再生的作用。结果:黄芪联合肝素修饰后的胶原能够产生与血管内皮生长因子相当的疗效,联合运用黄芪和血管内皮生长因子具有协同作用的趋势。结论:就血管再生疗效而言,黄芪在本胶原中可以替代或增加血管内皮生长因子的疗效。 | 陈晓虎 姚昶 Andreas Groerge 黄峻 N Pallua GCM Steffens | 2007 | 中国天然药物2007,5,5: | 6 |
| 7 | Hemobilia as the initial manifestation of cholangiocarcinoma in a hemophilia B patient显示文摘Hemobilia is a rare manifestation of hemophilia and is usually iatrogenic following liver biopsy. There are only few reports of spontaneous hemobilia in hemophilia patients. Cholangiocarcinoma is a well-established cause of hemobilia. We describe a case of a 70-year-old male, with known haemophilia B and a past history of papillotomy, who presented with classical symptoms of hemobilia. The initial diagnostic work-up failed to demonstrate a potential cause of bleeding other than the coagulopathy. Three months later, he was readmitted to our hospital with a second episode of hemobilia. During the second work-up, a cholangiocarcinoma was diagnosed both by imaging studies and by a significant elevation of cancer antigen 19-9. Although hemobilia could be attributed to hemophilia, especially in a patient with previous papillotomy, an underlying malignancy of the biliary tree should be suspected. | Anastassios C Manolakis Andreas N Kapsoritakis Antonis D Tsikouras Fotis D Tsiopoulos Athanassios K Psychos Spyros P Potamianos | 2008 | World Journal of Gastroenterology2008,14,26: | 5 |
| 8 | Hot deformation of Mg-Y-Zn alloy with a low content of the LPSO phase studied by in-situ synchrotron radiation diffraction显示文摘The compressive deformation behavior of the extruded WZ42(Mg98.5Y1Zn0.5 in at.%)magnesium alloy containing a low amount of long-period stacking ordered(LPSO)phase was studied by in-situ synchrotron radiation diffraction technique.Tests were conducted at temperatures between room temperature and 350℃.Detailed microstructure investigation was provided by scanning electron microscopy,particularly the backscattered electron imaging and electron backscatter diffraction technique.The results show that twinning lost its dominance and kinking of the LPSO phase became more pronounced with increasing deformation temperature.No cracks of the LPSO phase and no debonding r at the interface between the LPSO phase and the Mg matrix were observed at temperatures above 200℃.At 350℃,the LPSO phase lost its strengthening effect and the deformation of the alloy was mainly realized by the dynamic recrystallization of the Mg matrix. | Klaudia Horváth Fekete Daria Drozdenko Jan Capek Kristián Máthis Domonkos Tolnai Andreas Stark Gerardo Garcés Patrik Dobron | 2020 | Journal of Magnesium and Alloys2020,8,1: | 5 |
| 9 | Subcycle control of terahertz waveform polarization using all-optically induced transient metamaterials显示文摘Coherent radiation with frequencies ranging from 0.3 to 30 THz has recently become accessible using femtosecond laser technology.These terahertz(THz)waves have already been applied in spectroscopy and imaging and can be manipulated using static optical elements such as lenses,polarizers and filters.However,ultrafast modulation of THz radiation is required as well,for instance,in short-range wireless communication or for preparing shaped THz transients for the coherent control of numerous material excitations.Here,we demonstrate an all-optically created transient metamaterial that allows us to manipulate the polarization of THz waveforms with subcycle switch-on times.The polarization-modulated pulses are potentially interesting for controlling elementary motions such as the vibration of crystal lattices,the rotation of molecules and the precession of spins. | N Kamaraju Andrea Rubano Linke Jian Surajit Saha T Venkatesan Jan Notzold R Kramer Campen Martin Wolf Tobias Kampfrath | 2014 | Light(Science & Applications)2014,3,1: | 5 |
| 10 | Adjuvant therapy sparing in rectal cancer achieving complete response after chemoradiation显示文摘AIM:To evaluate the long-term results of conventional chemoradiotherapy and laparoscopic mesorectal excision in rectal adenocarcinoma patients without adjuvant therapy.METHODS:Patients with biopsy-proven adenocarcinoma of the rectum staged cT3-T4 by endoscopic ultrasound or magnetic resonance imaging received neoadjuvant continuous infusion of 5-fluorouracil for five weeks and concomitant radiotherapy.Laparoscopic surgery was planned after 5-8 wk.Patients diagnosed with ypT0N0 stage cancer were not treated with adjuvant therapy according to the protocol.Patients with ypT1-2N0 or ypT3-4 or N+were offered 5-fluorouracil-based adjuvant treatment on an individual basis.An external cohort was used as a reference for the findings.RESULTS:One hundred and seventy six patients were treated with induction chemoradiotherapy and 170underwent total mesorectal excision.Cancer staging of ypT0N0 was achieved in 26/170(15.3%)patients.After a median follow-up of 58.3 mo,patients withypT0N0 had five-year disease-free and overall survival rates of 96%(95%CI:77-99)and 100%,respectively.We provide evidence about the natural history of patients with localized rectal cancer achieving a complete response after preoperative chemoradiation.The inherent good prognosis of these patients will have implications for clinical trial design and care of patients.CONCLUSION:Withholding adjuvant chemotherapy after complete response following standard neoadjuvant chemoradiotherapy and laparoscopic mesorectal excision might be safe within an experienced multidisciplinary team. | Xabier García-Albéniz Rosa Gallego Ralf Dieter Hofheinz Gloria Fernández-Esparrach Juan Ramón Ayuso-Colella Josep Antoni Bombí Carles Conill Miriam Cuatrecasas Salvadora Delgado Angels Ginés Rosa Miquel Mario Pagés Estela Pineda Verónica Pereira Aarón Sosa Oscar Reig Iván Victoria Luis Feliz Antonio María de Lacy Antoni Castells Iris Burkholder Andreas Hochhaus Joan Maurel | 2014 | World Journal of Gastroenterology2014,20,42: | 5 |
| 11 | Extensive reworking of Archaean crust within the Birimian terrane in Ghana as revealed by combined zircon U-Pb and Lu-Hf isotopes显示文摘Located in the southeastern parts of the BaouléMossi domain of the West African Craton,the Birimian terrane in Ghana is known to consist of predominantly juvenile crust emplaced during the Eburnean orogeny.Here we present novel coupled zircon U-Pb and Lu-Hf isotope data from nine Birimian granitoids intruding different domains from northwestern,western and southeastern Ghana.Sub-chondriticε_(Hf)-values indicating reworking of Archaean crust are recorded in zircon from both northwestern and southeastern Ghana.As a conservative estimate 71%of all analysed zircon grains spanning in age from2220 Ma to 2130 Ma require contribution from a reworked Archaean source,contradicting the common belief that the Birimian terrane consist of predominantly juvenile crust.A minimumε_(Hf)-value of-10.5 at2139 Ma suggests a Palaeoarchaean to late Mseoarchaean component as the contributing ancient source.Combined with previously reported heavy zirconδ^(18)O signatures from Birimian river zircon in Ghana,our new data suggests reworking of Archaean aged sediments during subduction initiated crustal growth in the vicinity of one,or possibly in between two Archaean aged cratons. | Andreas Petersson Anders Scherstén Axel Gerdes | 2018 | Geoscience Frontiers2018,9,1: | 3 |
| 12 | Chronic kidney disease severely deteriorates the outcome of gastrointestinal bleeding: A meta-analysis显示文摘AIM To understand the influence of chronic kidney disease(CKD) on mortality, need for transfusion and rebleeding in gastrointestinal(GI) bleeding patients.METHODS A systematic search was conducted in three databases for studies on GI bleeding patients with CKD or endstage renal disease(ESRD) with data on outcomes of mortality, transfusion requirement, rebleeding rate and length of hospitalization(LOH). Calculations were performed with Comprehensive Meta-Analysis software using the random effects model. Heterogeneity was tested by using Cochrane's Q and I2 statistics. Mean difference(MD) and OR(odds ratio) were calculated.RESULTS1063 articles(EMBASE: 589; PubM ed: 459; Cochrane: 15) were found in total. 5 retrospective articles and 1 prospective study were available for analysis. These 6 articles contained data on 406035 patients, of whom 51315 had impaired renal function. The analysis showed a higher mortality in the CKD group(OR = 1.786, 95%CI: 1.689-1.888, P < 0.001) and the ESRD group(OR = 2.530, 95%CI: 1.386-4.616, P = 0.002), and a rebleeding rate(OR = 2.510, 95%CI: 1.521-4.144, P < 0.001) in patients with impaired renal function. CKD patients required more unit red blood cell transfusion(MD = 1.863, 95%CI: 0.812-2.915, P < 0.001) and spent more time in hospital(MD = 13.245, 95%CI: 6.886-19.623, P < 0.001) than the controls.CONCLUSION ESRD increases mortality, need for transfusion, rebleeding rate and LOH among GI bleeding patients. Prospective patient registries and observational clinical trials are crucially needed. | Roland Hágendorn Nelli Farkas Aron Vincze Zoltán Gyongyi Dezso Csupor Judit Bajor Bálint Eross Péter Csécsei Andrea Vasas Zsolt Szakács László Szapáry Péter Hegyi Alexandra Mikó | 2017 | World Journal of Gastroenterology2017,23,47: | 3 |
| 13 | Human immune cells' behavior and survival under bioenergetically restricted conditions in an in vitro fracture hematoma model显示文摘骨头骨折愈合的起始的煽动性的阶段为愈合的过程的结果代表关键步。然而,开始这个煽动性的阶段的机制和在破裂地点在场的有免疫力的房间的功能糟糕被理解。以便在破裂 hematoma 以内学习早事件,我们建立了一在里面 vitro 破裂 hematoma 模型:我们有教养的 hematomas 在 bioenergetically 控制的条件下面在 vitro 在全部的新潮的关节造形术(THA ) 期间在腿节的截骨术(人工的骨头破裂) 期间形成。这个模型允许我们在跟随破裂的早阶段期间监视有免疫力的房间人口,房间幸存和 cytokine 表示。而且,这个模型使我们能改变 bioenergetical 条件以便模仿在里面 vivo 状况,它被假定被组织缺氧描绘并且限制了营养素的数量。用这个模型,我们发现有免疫力的房间经由 angiogenic 因素, chemoattractants 和支持 inflammatory 分子的表示适应组织缺氧。另外,联合了氧的限制,滋养的供应与 myeloid 的比较提高了淋巴细胞的选择幸存导出的房间(即, neutrophils ) 。笔记,非限制的 bioenergetical 条件没关于 cytokine 表示或有免疫力的房间子集的不同幸存率显示出任何类似的效果。在结论,我们发现 bioenergetical 条件在导致骨折愈合的起始的煽动性的阶段的关键因素之中并且因此是为在早破裂 hematoma 影响有免疫力的房间的幸存和功能的一个关键步骤。 | Paula Hoff Patrick Maschmeyer Timo Gaber Tabea Schiitze Tobias Raue Katharina Schmidt-Bleek Rene Dziurla Saskia Schellmann Ferenz Leonard Lohanatha Eric Rohner Andrea Ode Gerd-Riidiger Burmester Georg N Duda Carsten Perka Frank Buttgereit | 2013 | Cellular & Molecular Immunology2013,10,2: | 3 |
| 14 | Direct characterization of a nonlinear photonic circuit’s wave function with laser light显示文摘Integrated photonics is a leading platform for quantum technologies including nonclassical state generation1–4,demonstration of quantum computational complexity5 and secure quantum communications6.As photonic circuits grow in complexity,full quantum tomography becomes impractical,and therefore an efficient method for their characterization7,8 is essential.Here we propose and demonstrate a fast,reliable method for reconstructing the two-photon state produced by an arbitrary quadratically nonlinear optical circuit.By establishing a rigorous correspondence between the generated quantum state and classical sum-frequency generation measurements from laser light,we overcome the limitations of previous approaches for lossy multimode devices9,10.We applied this protocol to a multi-channel nonlinear waveguide network and measured a 99.28±0.31%fidelity between classical and quantum characterization.This technique enables fast and precise evaluation of nonlinear quantum photonic networks,a crucial step towards complex,largescale,device production. | Francesco Lenzini Alexander N Poddubny James Titchener Paul Fisher Andreas Boes Sachin Kasture Ben Haylock Matteo Villa Arnan Mitchell Alexander S Solntsev Andrey A Sukhorukov Mirko Lobino | 2018 | Light(Science & Applications)2018,7,1: | 2 |
| 15 | 22-gauge core vs 22-gauge aspiration needle for endoscopic ultrasound-guided sampling of abdominal masses显示文摘AIM To compare the aspiration needle(AN) and core biopsy needle(PC) in endoscopic ultrasound-guided fine needle aspiration(EUS-FNA) of abdominal masses.METHODS Consecutive patients referred for EUS-FNA were included in this prospective single-center trial. Each patient underwent a puncture of the lesion with both standard 22-gauge(G) AN(Echo Tip Ultra; Cook Medical, Bloomington, Indiana, United States) and the novel 22 G PC(Echo Tip Pro Core; Cook Medical, Bloomington, Indiana, United States) in a randomized fashion; histology was attempted in the PC group only. The main study endpoint was the overall diagnostic accuracy, including the contribution of histology to the final diagnosis. Secondary outcome measures included material adequacy, number of needle passes, and complications.RESULTS Fifty six consecutive patients(29 men; mean age 68 years) with pancreatic lesions(n = 38), lymphadenopathy(n = 13), submucosal tumors(n = 4), or others lesions(n = 1) underwent EUS-FNA using both of the needles in a randomized order. AN and PC reached similar overall results for diagnostic accuracy(AN: 88.9 vs PC: 96.1, P = 0.25), specimen adequacy(AN: 96.4% vs PC: 91.1%, P = 0.38), mean number of passes(AN: 1.5 vs PC: 1.7, P = 0.14), mean cellularity score(AN: 1.7 vs PC: 1.1, P = 0.058), and complications(none). A diagnosis on the basis of histology was achieved in the PC group in 36(64.3%) patients, and in 2 of those as the sole modality. In patients with available histology the mean cellularity score was higher for AN(AN: 1.7 vs PC: 1.0, P = 0.034); no other differences were of statistical significance.CONCLUSION Both needles achieved high overall diagnostic yields and similar performance characteristics for cytological diagnosis; histological analysis was only possible in 2/3 of cases with the new needle. | William Sterlacci Athanasios D Sioulas Lothar Veits Pervin G?nüllü Guido Schachschal Stefan Groth Mario Anders Christos K Kontos Theodoros Topalidis Andrea Hinsch Michael Vieth Thomas R?sch Ulrike W Denzer | 2016 | World Journal of Gastroenterology2016,22,39: | 2 |
| 16 | A study of projections for key point based registration of panoramic terrestrial 3D laser scan显示文摘This paper surveys state-of-the-art image features and descriptors for the task of 3D scan registration based on panoramic reflectance images.As modern terrestrial laser scanners digitize their environment in a spherical way,the sphere has to be projected to a two-dimensional image.To this end,we evaluate the equirectangular,the cylindrical,the Mercator,the rectilinear,the Pannini,the stereographic,and the z-axis projection.We show that the Mercator and the Pannini projection outperform the other projection methods. | Hamidreza HOUSHIAR Jan ELSEBERG Dorit BORRMANN Andreas NÜCHTER | 2015 | Geo-Spatial Information Science2015,18,1: | 2 |
| 17 | Melena:A rare complication of duodenal metastases from primary carcinoma of the lung显示文摘Small bowel metastases from primary carcinoma of the lung are very uncommon and occur usually in patients with terminal stage disease. These metastases are usually asymptomatic, but may present as perforation, obstruction, malabsorption, or hemorrhage. Hemorrhage as a first presentation of small bowel metastases is extremely rare and is related to very poor patient survival. We describe a case of a 61- year old patient with primary adenocarcinoma of the lung, presenting with melena as the first manifestation of small bowel metastasis. Both primary tumor and metastatic lesions were diagnosed almost simultaneously. Upper gastrointestinal endoscopy performed with a colonoscope revealed active bleeding from a metastatic tumor involving the duodenum and the proximal jejunum. Histological examination and immunohistochemical staining of the biopsy specimen strongly supported the diagnosis of metastatic lung adenocarcinoma, suggesting that small bowel metastases from primary carcinoma of the lung occur usually in patients with terminal disease and rarely produce symptoms. Gastrointestinal bleeding from metastatic small intestinal lesions should be included in the differential diagnosis of gastrointestinal blood loss in a patient with a known bronchogenic tumor. | Chrysoula Kostakou Lubna Khaldi Andrew Flossos Andreas N Kapsoritakis Spiros P Potamianos | 2007 | World Journal of Gastroenterology2007,13,8: | 2 |
| 18 | Risks and Predictors of Blood Transfusion in Pediatric Patients Undergoing Open Heart Operations显示文摘 | Andrea Székely Zsuzsanna Cserép Erzsébet Sápi Tamás Breuer Csaba A. Nagy Péter Vargha István Hartyánszky András Szatmári András Treszl | 2009 | The Annals of Thoracic Surgery2009,,1: | 2 |
| 19 | Molecular mechanisms underlying the neuroprotection of environmental enrichment in Parkinson’s disease显示文摘Parkinson’s disease is the most common movement disorder,affecting about 1%of the population over the age of 60 years.Parkinson’s disease is characterized clinically by resting tremor,bradykinesia,rigidity and postural instability,as a result of the progressive loss of nigrostriatal dopaminergic neurons.In addition to this neuronal cell loss,Parkinson’s disease is characterized by the accumulation of intracellular protein aggregates,Lewy bodies and Lewy neurites,composed primarily of the proteinα-synuclein.Although it was first described almost 200 years ago,there are no disease-modifying drugs to treat patients with Parkinson’s disease.In addition to conventional therapies,non-pharmacological treatment strategies are under investigation in patients and animal models of neurodegenerative disorders.Among such strategies,environmental enrichment,comprising physical exercise,cognitive stimulus,and social interactions,has been assessed in preclinical models of Parkinson’s disease.Environmental enrichment can cause structural and functional changes in the brain and promote neurogenesis and dendritic growth by modifying gene expression,enhancing the expression of neurotrophic factors and modulating neurotransmission.In this review article,we focus on the current knowledge about the molecular mechanisms underlying environmental enrichment neuroprotection in Parkinson’s disease,highlighting its influence on the dopaminergic,cholinergic,glutamatergic and GABAergic systems,as well as the involvement of neurotrophic factors.We describe experimental pre-clinical data showing how environmental enrichment can act as a modulator in a neurochemical and behavioral context in different animal models of Parkinson’s disease,highlighting the potential of environmental enrichment as an additional strategy in the management and prevention of this complex disease. | Tamara Andrea Alarcón Sarah Martins Presti-Silva Ana Paula Toniato Simões Fabiola Mara Ribeiro Rita Gomes Wanderley Pires | 2023 | Neural Regeneration Research2023,18,7: | 2 |
| 20 | FRAME: femtosecond videography for atomic and molecular dynamics显示文摘Many important scientific questions in physics,chemistry and biology require effective methodologies to spectroscopically probe ultrafast intra-and inter-atomic/molecular dynamics.However,current methods that extend into the femtosecond regime are capable of only point measurements or single-snapshot visualizations and thus lack the capability to perform ultrafast spectroscopic videography of dynamic single events.Here we present a laser-probe-based method that enables two-dimensional videography at ultrafast timescales(femtosecond and shorter)of single,non-repetitive events.The method is based on superimposing a structural code onto the illumination to encrypt a single event,which is then deciphered in a post-processing step.This coding strategy enables laser probing with arbitrary wavelengths/bandwidths to collect signals with indiscriminate spectral information,thus allowing for ultrafast videography with full spectroscopic capability.To demonstrate the high temporal resolution of our method,we present videography of light propagation with record high 200 femtosecond temporal resolution.The method is widely applicable for studying a multitude of dynamical processes in physics,chemistry and biology over a wide range of time scales.Because the minimum frame separation(temporal resolution)is dictated by only the laser pulse duration,attosecondlaser technology may further increase video rates by several orders of magnitude. | Andreas Ehn Joakim Bood Zheming Li Edouard Berrocal Marcus Aldén Elias Kristensson | 2017 | Light(Science & Applications)2017,6,1: | 2 |