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| 1 | Abiotic and Biotic Stresses and Changes in the Lignin Content and Composition in Plants显示文摘Lignin is a polymer of phenylpropanoid compounds formed through a complex biosynthesis route,represented by a metabolic grid for which most of the genes involved have been sequenced in several plants,mainly in the model-plants Arabidopsis thaliana and Populus.Plants are exposed to different stresses,which may change lignin content and composition.In many cases,particularly for plant-microbe interactions,this has been suggested as defence responses of plants to the stress.Thus,understanding how a stressor modulates expression of the genes related with lignin biosynthesis may allow us to develop study-models to increase our knowledge on the metabolic control of lignin deposition in the cell wall.This review focuses on recent literature reporting on the main types of abiotic and biotic stresses that alter the biosynthesis of lignin in plants. | Jullyana Cristina Magalhaes Silva Moura Cesar Augusto Valencise Bonine Juliana de Oliveira Fernandes Viana Marcelo Carnier Dornelas Paulo Mazzafera | 2010 | Journal of Integrative Plant Biology2010，52，4： | 45 |
| 2 | A community-derived classification for extant lycophytes and ferns显示文摘发展史长通知了蕨类植物分类。当我们推断进化的树的能力改善了,针对认出生来的组的分类变得逐渐地预兆、稳定。这里,我们为 lycophytes 和蕨纲植物提供一个现代、全面分类,在下面,利用一条基于社区的途径类水平。我们 monophyly 用作主要标准让 taxa,而且目的识别保存两个广泛地被接受的存在 taxa 和界限并且与我们蕨类植物发展史的理解一致。总共,这个分类对待一在 337 个类, 51 个家庭, 14 目,和二个班估计了 11 916 种类。这个分类没在 lycophyte 和蕨纲植物上作为最后的词被打算分类,而是当前的假设的概括陈述,源于最好的可得到的数据并且在问题由熟悉植物的那些大多数塑造了。我们希望它将在蕨类植物上为最近的文学的那些想要的参考用作一个资源发展史和分类,为指导未来调查的一个框架,和推进讲话的刺激。 | Eric Schuettpelz Harald Schneider Alan R. Smith Peter Hovenkamp Jefferson Prado Germinal Rouhan Alexandre Salino Michael Sundue Thafs Elias Almeida Barbara Parris Emily B. Sessa Ashley R. Field Andre Luis de Gasper Carl J. Rothfels Michael D. Windham Marcus Lehnert Benjamin Dauphin Atsushi Ebihara Samuli Lehtonen Pedro Bond Schwartsburd Jordan Metzgar Li-Bing Zhang Li-Yaung Kuo Patrick J. Brownsey Masahiro Kato Marcelo Daniel Arana Francine C. Assis Michael S. Barker David S. Barrington Ho-Ming Chang Yi-Han Chang Yi-Shan Chao Cheng-Wei Chen De-Kui Chen Wen-Liang Chiou Vinicius Antonio de Oliveira Dittrich Yi-Fan Duan Jean-Yves Dubuisson Donald R. Farrar Susan Fawcett Jose Maria Gabriel y Galan Luiz Armando de Araujo Goes-Neto Jason R. Grant Amanda L. Grusz Christopher Haufler Warren Hauk Hai He Sabine Hennequin Regina Yoshie Hirai Layne Huiet Michael Kessler Petra Korall Paulo H. Labiak Anders Larsson Blanca Leen Chun-Xiang Li Fay-Wei Li Melanie Link-Perez Hong-Mei Liu Ngan Thi Lu Esteban I. Meza-Torres Xin-Yuan Miao Robbin Moran Claudine Massi Mynssens Nathalie Nagalingum Benjamin Ollgaard Alison M. Paul Jovani B. de S. Pereira Leon R. Perrie Monica Ponce Tom A. Ranker Christian Schulz Wataru Shinohara Alexander Shmakov Erin M. Sigel Filipe Soares de Souza Lana da Silva Sylvestre Weston Testo Luz Amparo Triana-Moreno Chie Tsutsumi Hanna Tuomisto IvAn A. Valdespino Alejandra Vasco Raquel Stauffer Viveros Alan Weakley Ran Wei Stina Weststrand Paul G. Wolf George Yatskievych Xiao-Gang Xu Yue-Hong Yan Liang Zhang Xian-Chun Zhang Xin-Mao Zhou | 2016 | Journal of Systematics and Evolution2016，54，6： | 44 |
| 3 | Mirizzi syndrome:History,current knowledge and proposal of a simplified classification显示文摘Chronic complications of symptomatic gallstone disease, such as Mirizzi syndrome, are rare in Western developed countries with an incidence of less than 1% a year. The importance and implications of this condition are related to their associated and potentially serious surgical complications such as bile duct injury, and to its modern management when encountered during laparoscopic cholecystectomy. The pathophysiological process leading to the subtypes of Mirizzi syndrome has been explained by means of a pressure ulcer caused by an impacted gallstone at the gallbladder infundibulum, leading to an inflammatory response causing first external obstruction of the bile duct, and eventually eroding into the bile duct and evolving to a cholecystocholedochal or cholecystohepatic fistula. This article reviews the life of Pablo Luis Mirizzi, describes the earlier and later descriptions of Mirizzi syndrome, discusses the pathophysiological process leading to the development of these uncommon fistulas, reviews the current diagnostic modalities and surgical approaches and finally proposes a simplified classification for Mirizzi syndrome intended to standardize the reports on this condition and to eventually develop a consensual surgical approach to this unexpected and seriously dangerous condition. | Marcelo A Beltrán | 2012 | World Journal of Gastroenterology2012，18，34： | 33 |
| 4 | 地中海沿岸沙丘种子大小对植物及其种子多度的影响显示文摘分析了地中海沿岸沙丘3种微生境(灌丛下、灌丛之间的开阔地、路径)以及整个沙丘生态系统的种子大小与土壤种子库中休眠种子的数量、土壤种子库中总种子的数量、地上植被中各个植物种的个体数量和幼苗数量、每种植物在小样方中的出现频率等方面之间的关系,也分析了种子尺寸(长、宽、高之和的平均值)与土壤种子的长久性、土壤种子库中休眠种子数量之间的关系;还分析了具有不同种子大小的植物在沙丘生态系统和各微生境的分布比率,验证了生活周期短的植物的种子在土壤中更长久和被干扰的微生境具有更多的休眠种子这种假说。结果发现,在地中海沿岸沙丘生态系统中,具有特别大的种子和特别小种子的植物种类都很少,不同植物种子的大小呈现近正态分布,但绝大多数植物的种子重量都不超过10 mg;微生境影响种子尺寸与种子长久性的关系,在灌丛下、开阔地区域等两个微生境以及整个的沙丘生态系统都呈现显著的正向关系(p<0 .0 5 ) ,而在路径这种关系不很明显;种子多度与植被物种出现频率呈现强烈的正相关(p<0 .0 5 ) ,没有发现种子大小与土壤种子库中休眠种子数量、种子库中总的种子数量、植被物种出现频率、植被的物种多度、幼苗植物多度等方面有显著的关系;具有中度大小种子(0 .1~10 mg)的植物在总的土壤种子库、休? | 于顺利 Marcelo Sternberg 蒋高明 刘美珍 Pua Kutiel | 2005 | 生态学报2005，25，4： | 26 |
| 5 | Complications of radiofrequency ablation of hepatic tumors:Frequency and risk factors显示文摘Radiofrequency ablation(RFA)has become an important option in the therapy of primary and secondary hepatic tumors.Surgical resection is still the best treatment option,but only a few of these patients are candidates for surgery:multilobar disease,insufficient liver reserve that will lead to liver failure after resection,extra-hepatic disease,proximity to major bile ducts and vessels,and co-morbidities.RFA has a low mortality and morbidity rate and is considered to be safe.Thus,complications occur and vary widely in the literature.Complications are caused by thermal damage,direct needle injury,infection and the patient’s co-morbidities.Tumor type,type of approach,number of lesions,tumor localization,underlying hepatic disease,the physician’s experience,associated hepatic resection and lesion size have been described as factors significantly associated with complications.The physician in charge should promptly recognize high-risk patients more susceptible to complications,perform a close post procedure follow-up and manage them early and adequately if they occur.We aim to describe complications from RFA of hepatic tumors and their risk factors,as well as a few techniques to avoid them.This way,others can decrease their morbidity rates with better outcomes. | Alexandre Zanchenko Fonseca Stephanie Santin Luiz Guilherme Lisboa Gomes Jaques Waisberg Marcelo Augusto Fontenelle Ribeiro Jr. | 2014 | World Journal of Hepatology2014，6，3： | 24 |
| 6 | Epigenetic regulation of DNA repair machinery in Helicobacter pylori-induced gastric carcinogenesis显示文摘Although thousands of DNA damaging events occur in each cell every day,efficient DNA repair pathways have evolved to counteract them. The DNA repair machinery plays a key role in maintaining genomic stability by avoiding the maintenance of mutations. The DNA repair enzymes continuously monitor the chromosomes to correct any damage that is caused by exogenous and endogenous mutagens. If DNA damage in proliferating cells is not repaired because of an inadequate expression of DNA repair genes,it might increase the risk of cancer. In addition to mutations,which can be either inherited or somatically acquired,epigenetic silencing of DNA repair genes has been associated with carcinogenesis. Gastric cancer represents the second highest cause of cancer mortality worldwide. The disease develops from the accumulation of several genetic and epigenetic changes during the lifetime. Among the risk factors,Helicobacter pylori(H. pylori) infection is considered the main driving factor to gastric cancer development. Thus,in this review,we summarize the current knowledge of the role of H. pylori infection on the epigenetic regulation of DNA repair machinery in gastric carcinogenesis. | Juliana Carvalho Santos Marcelo Lima Ribeiro | 2015 | World Journal of Gastroenterology2015，21，30： | 19 |
| 7 | Intraoperative cell salvage with autologous transfusion in liver transplantation显示文摘Liver transplant(LT) is the primary treatment for patients with end-stage liver disease. About 25000 LTs are performed annually in the world. The potential for intraoperative bleeding is quite variable. However, massive bleeding is common and requires blood transfusion. Allogeneic blood transfusion has an immunosuppressive effect and an impact on recipient survival, in addition to the risk of transmission of viral infections and transfusion errors, among others.Techniques to prevent excessive bleeding or to use autologous blood have been proposed to minimize the negative effects of allogeneic blood transfusion.Intraoperative reinfusion of autologous blood is possible through previous selfdonation or blood collected during the operation. However, LT does not normally allow autologous transfusion by prior self-donation. Hence, using autologous blood collected intraoperatively is the most feasible option. The use of intraoperative blood salvage autotransfusion(IBSA) minimizes the perioperative use of allogeneic blood, preventing negative transfusion effects without negatively impacting other clinical outcomes. The use of IBSA in patients with cancer is still a matter of debate due to the theoretical risk of reinfusion of tumor cells. However, studies have demonstrated the safety of IBSA in several surgical procedures, including LT for hepatocellular carcinoma. Considering the literature available to date, we can state that IBSA should be routinely used in LT, both in patients with cancer and in patients with benign diseases. | Marcelo A Pinto Marcio F Chedid Leo Sekine Andre P Schmidt Rodrigo P Capra Carolina Prediger Jo?o E Prediger Tomaz JM Grezzana-Filho Cleber RP Kruel | 2019 | World Journal of Gastrointestinal Surgery2019，11，1： | 16 |
| 8 | Xanthogranulomatous cholecystitis mimicking gallbladder cancer and causing obstructive cholestasis显示文摘BACKGROUND: Xanthogranulomatous cholecystitis (XGC) is a destructive inflammatory disease of the gallbladder that can mimic gallbladder carcinoma. METHODS: We present the case of a 35-year-old Hispanic male complaining of right upper quadrant pain and jaundice for 2 months prior to admission. He denied a history of fever, nausea/ vomiting, and weight loss. The past medical history was relevant only for diabetes. He had no previous history of jaundice or previous operations. RESULTS: CA19-9 was slightly elevated (52 U/mL). Abdominal ultrasonography showed an irregular thickening of the gallbladder wall and no gallstones were detected. CT scan also revealed an irregular thickening of the wall of the gallbladder body suggestive of malignancy. At laparotomy, the mass was adherent to the duodenum and colon, and although the frozen section biopsy was negative, the intraoperative findings were suggestive of malignancy, and the patient underwent left liver trisegmentectomy, resection of the common bile duct and Roux-en-Y hepaticojejunostomy. Pathological examination unexpectedly revealed XGC without malignancy. CONCLUSIONS: Preoperative and intraoperative differential diagnosis of XGC from gallbladder carcinoma remains a challenge when it is associated with inflammatory involvement of surrounding tissues. Since gallbladder carcinoma and XGC may coexist, radical resection is justified when malignancy cannot be completely ruled out. | Paulo N Martins Patricia Sheiner Marcelo Facciuto | 2012 | Hepatobiliary & Pancreatic Diseases International2012，11，5： | 15 |
| 9 | 巴西构造应力场的遗传有限单元法反演显示文摘基于观测的主应力方位资料,应用遗传有限单元法对巴西及邻区边界位移和板内力源进行了反演,确认了前人的研究结果:板块边界作用是控制区域应力场的主要因素,山脉和海岸地形造成的扩展力是控制应力场的一个重要因素.同时显示了板块在垂直载荷下的弯曲对局部水平应力场造成相当的影响.反演结果也表明,除了过去公认的东西向挤压作用外,巴西还受到相当明显的南北向构造作用.它的存在与最近GPS资料的分析是一致的.研究还表明遗传有限单元法是偏微分方程反演问题求解的一种有效方法. | 石耀霖 Marcelo Assumpcao | 2000 | 地球物理学报2000，43，2： | 14 |
| 10 | Pancreaticobiliary reflux in patients with a normal pancreaticobiliary junction:Pathologic implications显示文摘Knowledge on pancreaticobiliary reflux in normal pancreaticobiliary junction and its pathologic implications has experienced tremendous progress during the last few years.This editorial reviews the current knowledge on this condition and its pathological implications on gallbladder diseases.The following aspects were def ined appropriate for discussion:(1) Evidence of carcinogenesis associated with pancreaticobiliary reflux;(2) Evidence of pancreaticobiliary reflux in normal pancreaticobiliary junction;and(3) Evidence of sphincter of Oddi(SO) dysfunction as a cause of pancreaticobiliary reflux in normal pancreaticobiliary junction.The articles reviewed were selected and classif ied according to f ive levels of evidence:Level-this condition.Although an important body of research has been published regarding pancreaticobiliary reflux in normal pancreaticobiliary junction and its clinical significance,the current evidence does not fully support what has been suggested.Studies with evidence level Ι have not been undertaken.This is a fascinating subject of study,and if finally supported by evidence level Ι,the importance of this condition will constitute a major breakthrough in biliary pathology. | Marcelo A Beltrán | 2011 | World Journal of Gastroenterology2011，17，8： | 13 |
| 11 | Spontaneous rupture of hepatic hemangiomas:A review of the literature显示文摘Hepatic hemangiomas are congenital vascular malformations,considered the most common benign mesenchymal hepatic tumors,composed of masses of blood vessels that are atypical or irregular in arrangement and size. Hepatic hemangiomas can be divided into two major groups:capillary hemangiomas and cavernous hemangiomas These tumors most frequently affect females (80%) and adults in their fourth and fifth decades of life. Most cases are asymptomatic although a few patients may present with a wide variety of clinical symptoms,with spontaneous or traumatic rupture being the most severe complication. In cases of spontaneous rupture,clinical manifestations consist of sudden abdominal pain,and anemia secondary to ahaemoperitoneum. Disseminated intravascular coagulopathy can also occur. Haemodynamic instability and signs of hypovolemic shock appear in about one third of cases. As the size of the hemangioma increases,so does the chance of rupture. Imaging studies used in the diagnosis of hepatic hemangiomas include ultrasonography,dynamic contrast-enchanced computed tomography scanning,magnetic resonance imaging,hepatic arteriography,digital subtraction angiography,and nuclear medicine studies. In most cases hepatic hemangiomas are asymptomatic and should be followed up by means of periodic radiological examination. Sur gery should be restricted to specific situations. Absolute indications for surgery are spontaneous or trau m atic rupture with hemoperitoneum,intratumoral blee ding and consumptive coagulopathy (Kassabach-Merrit syndrome). In a patient presenting with acute abdo minal pain due to unknown abdominal disease,sponta neous rupture of a hepatic tumor such as a hemangio ma should be considered as a rare differential diagnosis. | Marcelo AF Ribeiro Francine Papaiordanou Juliana M Gonalves Eleazar Chaib | 2010 | World Journal of Hepatology2010，2，12： | 12 |
| 12 | Impacted Lower Third Molar Fused with a Supernumerary Tooth—Diagnosis and Treatment Planning Using Cone-Beam Computed Tomography显示文摘This paper reported a case of fusion between an impacted third molar and a supernumerary tooth, in which a surgical intervention was carried out, with the objective of removing the dental elements. The panoramic radiography was complemented by the Donovan's radiographic technique; but because of the proximity of the dental element to the mandibular ramus, it was not possible to have a final fusion diagnosis. Hence, the Cone-Beam Computed Tomography―which provides precise threedimensional information―was used to determinate the fusion diagnosis and also to help in the surgical planning. In this case report we observed that the periapical, occlusal and panoramic were not able to show details which could only be examined through the cone-beam computed tomography. | Osny Ferreira-Junior Luciana Dorigatti de .&.Aila Marcelo Bonifacio da Silva Sampieri Eduardo Dias- Ribeiro Wei-liang Chen Song Fan | 2009 | International Journal of Oral Science2009，1，4： | 11 |
| 13 | Follicular dendritic cell sarcoma of the liver:unusual presentation of a rare tumor and literature review显示文摘BACKGROUND:Hepatic follicular dendritic cell (FDC) sarcoma is an extremely rare neoplasm.Most commonly,FDC sarcoma presents as a solitary mass in lymph nodes,however,several extra-nodal locations have been identified.METHODS:We report a case of a 53-year-old female who presented with symptoms of abdominal pain,fever,anemia,and jaundice.After an extensive review of the literature,we have found only 12 cases of hepatic FDC sarcoma.RESULTS:The tumor was 11.5 cm in diameter and composed of spindle and epithelioid cells with ovoid nuclei and associated with mixed inflammatory infiltrate.Immunohistochemical stains were positive for CD35 and CD21.The patient underwent a left hepatic lobectomy.CONCLUSIONS:Liver follicular dendritic cell sarcoma is a very rare tumor.Most cases present with abdominal pain and weight loss,and most of them can be managed by hepatic resection with excellent short-term outcomes. | Paulo N Martins Sanjay Reddy Ann-Britt Martins Marcelo Facciuto | 2011 | Hepatobiliary & Pancreatic Diseases International2011，10，4： | 11 |
| 14 | The Role of Phytochrome in Stress Tolerance显示文摘It is well-documented that phytochromes can control plant growth and development from germination to flowering.Additionally,these photoreceptors have been shown to modulate both biotic and abiotic stress.This has led to a series of studies exploring the molecular and biochemical basis by which phytochromes modulate stresses,such as salinity,drought,high light or herbivory.Evidence for a role of phytrochromes in plant stress tolerance is explored and reviewed. | Rogério Falleiros Carvalho Marcelo Lattarulo Campos Ricardo Antunes Azevedo | 2011 | Journal of Integrative Plant Biology2011，53，12： | 11 |
| 15 | Going beyond 1000000 resolved points in a Brillouin distributed fiber sensor: theoretical analysis and experimental demonstration显示文摘Distributed fiber sensing possesses the unique ability to measure the distributed profile of an environmental quantity along many tens of kilometers with spatial resolutions in the meter or even centimeter scale.This feature enables distributed sensors to provide a large number of resolved points using a single optical fiber.However,in current systems,this number has remained constrained to a few hundreds of thousands due to the finite signal-to-noise ratio(SNR)of the measurements,which imposes significant challenges in the development of more performing sensors.Here,we propose and experimentally demonstrate an ultimately optimized distributed fiber sensor capable of resolving 2100000 independent points,which corresponds to a one-orderof-magnitude improvement compared to the state-of-the-art.Using a Brillouin distributed fiber sensor based on phase-modulation correlation-domain analysis combined with temporal gating of the pump and time-domain acquisition,a spatial resolution of 8.3 mm is demonstrated over a distance of 17.5 km.The sensor design addresses the most relevant factors impacting the SNR and the performance of medium-to-long range sensors as well as of sub-meter spatial resolution schemes.This step record in the number of resolved points could be reached due to two theoretical models proposed and experimentally validated in this study:one model describes the spatial resolution of the system and its relation with the sampling interval,and the other describes the amplitude response of the sensor,providing an accurate estimation of the SNR of the measurements. | Andrey Denisov Marcelo A Soto Luc Thévenaz | 2016 | Light(Science & Applications)2016，5，1： | 11 |
| 16 | Relaxin prevents the development of severe acute pancreatitis显示文摘瞄准:为了调查尖锐胰腺炎(AP ) 的严厉,被联系到白血球激活,煽动性的起来规定和联系到 ischemia-reperfusion 损害的微循环混乱的紧张。支持 inflammatory 调停人的 Microvascular 完整和抑制在 AP 的进化是关键因素的。松弛激素是被归因的像胰岛素的荷尔蒙经由氮的氧化物小径的 vasorelaxant 性质当作为糖皮质激素受体收缩筋表现时。方法:AP 被 bilio 胰腺的 duct-outlet-exclusion closed-duodenal-loops 模型导致。有松弛激素的处理在不同时间点被做。由由 mifepristone 的阻塞被考虑的 L 名字和糖皮质激素受体(GR ) 的氮的氧化物 synthase 抑制。AP 严厉被生物化学、组织病理学说的分析估计。结果:有松弛激素的处理减少了浆液淀粉酶,脂肪分解酵素, C 反应的蛋白质, IL-6, IL-10, hsp72, LDH 和 8-isoprostane 象一样胰腺并且肺 myeloperoxidase。腺泡和脂肪坏死,出血和 neutrophil 渗透也被减少。当 caspases 2-3-8 和 9 项活动被增加时, ATP 弄空和 ADP/ATP 比率被减少。L 名字和 mifepristone 减少了松弛激素的效率。结论:松弛激素结果在当保存微发行量并且在坏死上赞成 apoptosis 时,联合 GR 收缩筋的性质的 AP 的处理有益。 | Laura Iris Cosen-Binker Marcelo Gustavo Binker Rodica Cosen Gustavo Negri Osvaldo Tiscornia | 2006 | World Journal of Gastroenterology2006，12，10： | 10 |
| 17 | Acute pancreatitis:The stress factor显示文摘Acute pancreatitis is an inflammatory disorder of the pancreas that may cause life-threatening complications.Etiologies of pancreatitis vary,with gallstones accounting for the majority of all cases,followed by alcohol.Other causes of pancreatitis include trauma,ischemia,mechanical obstruction,infections,autoimmune,hereditary,and drugs.The main events occurring in the pancreatic acinar cell that initiate and propagate acute pancreatitis include inhibition of secretion,intracellular activation of proteases,and generation of inflammatory mediators.Small cytokines known as chemokines are released from damaged pancreatic cells and attract inflammatory cells,whose systemic action ultimately determined the severity of the disease.Indeed,severe forms of pancreatitis may result in systemic inflammatory response syndrome and multiorgan dysfunction syndrome,characterized by a progressive physiologic failure of several interdependent organ systems.Stress occurs when homeostasis is threatened,and stressors can include physical or mental forces,or combinations of both.Depending on the timing and duration,stress can result in beneficial or harmful consequences.While it is well established that a previous acute-short-term stress decreases the severity of experimentally-induced pancreatitis,the worsening effects of chronic stress on the exocrine pancreas have received relatively little attention.This review will focus on the influence of both prior acute-short-term and chronic stress in acute pancreatitis. | Marcelo G Binker Laura I Cosen-Binker | 2014 | World Journal of Gastroenterology2014，20，19： | 10 |
| 18 | 地中海沿岸沙丘土壤种子库的异质性(英文)显示文摘应用自然萌发法和物理筛选法相结合的方法 ,调查了地中海沿岸沙丘三种微生境土壤总种子库和永久种子库特征 ,用功能群的方法分析了微生境之间的土壤总种子库和永久土壤种子库的组成和结构差异 ,也分析了主要物种土壤种子库的微生境分布格局 ,分析了种子大小和土壤种子库中的种子永久性关系。发现地中海沿岸沙丘土壤种子库具有明显的空间异质性 ,即使在相同的微生境内 ,土壤种子库的分布也不是均匀的 ,甚至具有很大的差异 ;微生境对总的土壤种子库和各功能群的土壤种子库的分布格局具有显著的影响 ,开阔地区域具有最大的种子密度 ,而灌丛下和路径具有较小的种子密度 ;在永久土壤种子库中 ,豆科类植物种子在休眠种子中占有最大的比例 ,约为 76 % ,而一年生和多年生禾草未发现休眠种子 ,豆类、伞形科类、多年生阔草、菊科类、一年生阔叶草和十字花科类等种子在土壤中的永久性比例依次下降 ,分别为 5 0 %、4 6 %、4 1%、6 %、6 %和 1% ,微生境影响各功能群种子在土壤中的永久性。微生境显著影响大部分主要物种的土壤种子库分布 ;种子大小与其在土壤中的永久性为正相关 ,即大种子具有较高的永久性 。 | 于顺利 Marcelo STERNBERG 蒋高明 Pua KUTIEL | 2003 | Acta Botanica Sinica2003，45，5： | 9 |
| 19 | Open abdomen in gastrointestinal surgery:Which technique is the best for temporary closure during damage control?显示文摘AIM To compare the 3 main techniques of temporary closure of the abdominal cavity,vacuum assisted closure(vacuum-assisted closure therapy- VAC),Bogota bag and Barker technique,in damage control surgery.METHODS After systematic review of the literature,33 articles were selected to compare the efficiency of the three procedures.Criteria such as cost,infections,capacity of reconstruction of the abdominal wall,diseases associated with the technique,among others were analyzed.RESULTS The Bogota bag and Barker techniques present as advantage the availability of material and low cost,what is not observed in the VAC procedure.The VAC technique is the most efficient,not only because it reduces the tension on the boarders of the lesion,but also removes stagnant fluids and debris and acts at cellular level increasing cell proliferation and division.Bogota bag presents the higher rates of skin laceration and evisceration,greater need for a stent for draining fluids and wash-ups,higher rates of intestinal adhesion to the abdominal wall.The Barker technique presents lack of efficiency in closing the abdominal wall and difficulty on maintaining pressure on the dressing.The VAC dressing can generate irritation and dermatitis when the drape is applied,in addition to pain,infection and bleeding,as well as toxic shock syndrome,anaerobic sepsis and thrombosis.CONCLUSION The VAC technique,showed to be superior allowing a better control of liquid on the third space,avoiding complications such as fistula with small mortality,low infection rate,and easier capability on primary closure of the abdominal cavity. | Marcelo A F Ribeiro Junior Emily Alves Barros Sabrina Marques de Carvalho Vinicius Pereira Nascimento José Cruvinel Neto Alexandre Zanchenko Fonseca | 2016 | World Journal of Gastrointestinal Surgery2016，8，8： | 9 |
| 20 | Growth mechanism of octahedron-like BaMoO_4 microcrystals processed in microwave-hydrothermal:Experimental observations and computational modeling显示文摘Octahedron-like BaMoO4 microcrystals were synthesized by the co-precipitation method at room temperature and processed in microwave-hydrothermal at 413 K for different times (from 30 min to 5 h). These microcrystals were analyzed by X-ray diffraction (XRD),field-emission gun scanning electron microscopy (FEG-SEM) and transmission electron microscopy (TEM). XRD patterns showed that this material presents a tetragonal structure without the presence of deleterious phases. FEG-SEM and TEM micrographs revealed that the BaMoO4 microcrystals present an octahedron-like morphology with agglomerate nature and poly-disperse particle size distribution. These micrographs also indicated that the microcrystals grow along the [0 0 1] direction. The observed crystallographic planes in these structures were modeled computationally and a crystal growth model was proposed in order to explain the morphological changes as a function of processing time. | Laécio Santos Cavalcante Júlio César Sczancoski Rircado Luis Tranquilin José Arana Varela Elson Longo Marcelo Ornaghi Orlandi | 2009 | Particuology2009，7，5： | 9 |
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