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1Intrahepatic biliary cystic neoplasms:Surgical results of 9 patients and literature review显示文摘AIM: To investigate the eligible management of the cystic neplasms of the liver. METHODS: The charts of 9 patients who underwent surgery for intrahepatic biliary cystic liver neoplasms between 2003 and 2008 were reviewed retrospectively. Informed consent was obtained from the patients and approval was obtained from the designated review board of the institution. RESULTS: All patients were female with a median (range) age of 49 (27-60 years). The most frequent symptom was abdominal pain in 6 of the patients. Four patients had undergone previous laparotomy (with other diagnoses) which resulted in incomplete surgery or recurrences. Liver resection (n = 6) or enucleation (n = 3) was performed. The final diagnosis was intrahepaticbiliary cystadenoma in 8 patients and cystadenocarcinoma in 1 patient. All symptoms resolved after surgery. There has been no recurrence during a median (range) 31 (7-72) mo of follow up. CONCLUSION: In spite of the improvement in imaging modalities and increasing recognition of biliary cystadenoma and cystadenocarcinoma, accurate preoperative diagnosis may be difficult. Complete surgical removal (liver resection or enucleation) of these lesions yields satisfying long-term results.Ali Emre Kür■at Rahmi Serin Ilgin zden Yaman Tekant Orhan Bilge Ayd■n Alper Mine Güllüoglu Koray Güven 2011World Journal of Gastroenterology2011,17,3:15
2Characterization of monocarboxylate transporter activity in hepatocellular carcinoma显示文摘AIM: To assess the immunoexpression of hypoxiarelated markers in samples from cirrhosis and primary and metastatic hepatocellular carcinoma(HCC).METHODS: From a total of 5836 autopsies performed at the Pathology Department- University of Sao Paulo School of Medicine Hospital- from 2003 to 2009, 188 presented primary liver tumors. Immunohistochemical reactivity for monocarboxylate transporters(MCTs)-1, 2 and 4, CD147 and glucose transporter-1(GLUT1)was assessed in necropsies from 80 cases of HCC. Data were stored and analyzed using the IBM SPSS statistical software(version 19, IBM Company, Armonk, NY). All comparisons were examined for statistical significance using Pearson's χ2 test and Fisher's exact test(when n < 5). The threshold for significant P values was established as P < 0.05.RESULTS: Plasma membrane expression of MCT4 and overall expression of GLUT1 showed progressively higher expression from non-neoplastic to primary HCC and to metastases. In contrast, overall expression of MCT2 was progressively decreased from non-neoplastic to primary HCC and to metastases. MCT1(overall and plasma membrane expression), MCT2 and CD147 plasma membrane expression were associated with absence of cirrhosis, while plasma membrane expression of CD147 was also associated with absence of HBV infection. MCT2 overall expression was associated with lower liver weight, absence of metastasis and absence of abdominal dissemination. Additionally, MCT4 plasma membrane positivity was strongly associated with Ki-67 expression. CONCLUSION: MCT4 and GLUT1 appear to play a role in HCC progression, while MCT2 is lost during progression and associated with better prognosis.Venncio AF Alves Céline Pinheiro Filipa Morais-Santos Aloisio Felipe-Silva Adhemar Longatto-Filho Fátima Baltazar 2014World Journal of Gastroenterology2014,20,33:11
3Beneficiation of the gold bearing ore by gravity and flotation显示文摘Gold concentration usually consists of gravity separation, flotation, cyanidation, or the combination of these processes. The choice among these processes depends on the mineralogical characterization and gold content of the ore. Recently, the recovery of gold using gravity methods has gained attention because of low cost and environmentally friendly operations. In this study, gold pre-concentrates were produced by the stepwise gravity separation and flotation techniques. The Knelson concentrator and conventional flotation were employed for the recovery of gold. Gold bearing ore samples were taken from Gümüshane Region, northern east part of Turkey. As a result of stepwise Knelson concentration experiments, a gold concentrate assaying around 620 g/t is produced with 41.4wt% recovery. On the other hand, a gold concentrate about 82 g/t is obtained with 89.9wt% recovery from a gold ore assaying 6 g/t Au by direct flotation.Alim Gül Olga Kangal Ayhan A. Sirkeci Güven nal 2012International Journal of Minerals,Metallurgy and Materials2012,19,2:10
4“从‘入世治学”角度看本土化管理研究显示文摘首先,本文指出了本土化研究的重要性,这类研究不仅可以建立对于.理解当地现象的特定认识,而且对于跨越文化边界推进一般理论知识具有重要意义。具有挑战性的是,我们提出了一种从事本土化研究的“入世治学”模型和方法。本文分别提供了一个中国和美国的实例,讨论它们如何运用“入世治学”的原则进行本土化管理研究。最后,本文对如何在中国情境下开展本土化管理研究提出了三点建议。Andrew H.Van de Ven 井润田 2020管理学季刊2020,5,1:10
5How to Make Capsules Containing Rejuvenators for Their Use in Asphalt Concrete显示文摘Rejuvenators are products designed to restore original properties to oxidized asphalt binders by restoring the original ratio of asphaltenes to maltenes. But,for a rejuvenator to be successful,it must penetrate the pavement surface. Besides,application of a rejuvenator will also reduce the skid resistance of the pavement. To solve this,these rejuvenators can be encapsulated and mixed in asphalt concrete. Once the stress in the capsules reaches a certain threshold,the particles break and the rejuvenator is released,giving back the original properties of the pavement. The objective of this paper is to show how these capsules behave and define the most appropriate testing methods to find their effect on asphalt concrete. For this,two different types of rejuvenators will be encapsulated and their effect on the properties of the capsules investigated. Besides,the release mechanisms of the capsules will be unravelled.GARCIA A SCHLANGEN E VAN DE VEN M F C 2010武汉理工大学学报2010,32,17:7
6A Review on Surface?Functionalized Cellulosic Nanostructures as Biocompatible Antibacterial Materials显示文摘As the most abundant biopolymer on the earth,cellulose has recently gained significant attention in the development of antibacterial biomaterials.Biodegradability,renewability,strong mechanical properties,tunable aspect ratio,and low density offer tremendous possibilities for the use of cellulose in various fields.Owing to the high number of reactive groups(i.e.,hydroxyl groups)on the cellulose surface,it can be readily functionalized with various functional groups,such as aldehydes,carboxylic acids,and amines,leading to diverse properties.In addition,the ease of surface modification of cellulose expands the range of compounds which can be grafted onto its structure,such as proteins,polymers,metal nanoparticles,and antibiotics.There are many studies in which cellulose nano-/microfibrils and nanocrystals are used as a support for antibacterial agents.However,little is known about the relationship between cellulose chemical surface modification and its antibacterial activity or biocompatibility.In this study,we have summarized various techniques for surface modifications of cellulose nanostructures and its derivatives along with their antibacterial and biocompatibility behavior to develop non-leaching and durable antibacterial materials.Despite the high effectiveness of surface-modified cellulosic antibacterial materials,more studies on their mechanism of action,the relationship between their properties and their effectivity,and more in vivo studies are required.Mandana Tavakolian Seid Mahdi Jafari Theo GMvan de Ven 2020Nano-Micro Letters2020,12,6:7
7Percutaneous radiofrequency ablation for early hepatocellular carcinoma: Risk factors for survival显示文摘AIM: To evaluate outcomes of radiofrequency ablation(RFA) therapy for early hepatocellular carcinoma(HCC) and identify survival- and recurrence-related factors. METHODS: Consecutive patients diagnosed with early HCC by computed tomography(CT) or magnetic resonance imaging(MRI)(single nodule of ≤ 5 cm, or multi-(up to 3) nodules of ≤ 3 cm each) and who underwent RFA treatment with curative intent between January 2010 and August 2011 at the Instituto do Cancer do Estado de S o Paulo, Brazil were enrolled in the study. RFA of the liver tumors(with 1.0 cm ablative margin) was carried out under CT-fluoro scan and ultrasonic image guidance of the percutaneous ablation probes. Procedure-related complications were recorded. At 1-mo post-RFA and 3-mo intervals thereafter, CT and MRI were performed to assess outcomes of complete response(absence of enhancing tissue at the tumor site) or incomplete response(enhancing tissue remaining at the tumor site). Overall survival and diseasefree survival rates were estimated by the Kaplan-Meier method and compared by the log rank test or simple Cox regression. The effect of risk factors on survival was assessed by the Cox proportional hazard model. RESULTS: A total of 38 RFA sessions were performed during the study period on 34 patients(age in years: mean, 63 and range, 49-84). The mean follow-up time was 22 mo(range, 1-33). The study population showed predominance of male sex(76%), less severe liver disease(Child-Pugh A, n = 26; Child-Pugh B, n = 8), and single tumor(65%). The maximum tumor diameters ranged from 10 to 50 mm(median, 26 mm). The initial(immediately post-procedure) rate of RFAinduced complete tumor necrosis was 90%. The probability of achieving complete response was significantly greater in patients with a single nodule(vs patients with multi-nodules, P = 0.04). Two patients experienced major complications, including acute pulmonary edema(resolved with intervention) and intestinal perforation(led to death). The 1- and 2-year overall survival rates were 82% and 71%, respectively. Sex, tumor size, initial response, and recurrence status influenced survival, but did not reach the threshold of statistical significance. Child-Pugh class and the model for end-stage liver disease score were identified as predictors of survival by simple Cox regression, but only Child-Pugh class showed a statistically significant association to survival in multiple Cox regression analysis(HR = 15; 95%CI: 3-76 mo; P = 0.001). The 1-and 2-year cumulative disease-free survival rates were 65% and 36%, respectively. CONCLUSION: RFA is an effective therapy for local tumor control of early HCC, and patients with preserved liver function are the best candidates.Luciana Kikuchi Marcos Menezes Aline L Chagas Claudia M Tani Regiane SSM Alencar Marcio A Diniz Venncio AF Alves Luiz Augusto Carneiro D’Albuquerque Flair José Carrilho 2014World Journal of Gastroenterology2014,20,6:5
8Isolation and proteomic analysis of the SYP61 compartment reveal its role in exocytic trafficking in Arabidopsis显示文摘endomembrane 系统是建筑群和动态细胞内部的 trafficking 网络。它很正在质问在实时追踪单个泡和他们的货物;然而,亲密关系纯化允许泡处于他们的自然状态被孤立以便他们的成分蛋白质能被识别。在植物开创这条途径,我们孤立 SYP61 trans-Golgi 网络分隔空间并且与从另外的细胞器的仅仅最小的干扰执行了它的内容的全面 proteomic 分析。SYP61 的 proteome 揭示了以前没被归功于到这分隔空间的未知功能的蛋白质的协会。我们识别了完全的 SYP61 圈套建筑群,包括规章的蛋白质并且由显示出在 planta 与 SYP61 联系的几这些蛋白质验证了 proteome 数据。我们进一步识别了 SYP121 复杂并且纤维素 synthases,建议那 SYP61 在 exocytic trafficking 和房间墙部件的运输起一个作用到血浆膜。在包括针鼹鼠的 SYP61 proteome 的未知功能的蛋白质的存在提供机会识别新奇 trafficking 部件和货物。处于他们的自然状态的植物泡的亲密关系纯化为复杂 endomembrane 网络的进一步的分析和解剖提供一个基础。途径是广泛地适用的并且能在植物负担得起几张泡人口的学习,它能与 SYP61 泡 proteome 相比。Georgia Drakakaki Wilhelmina van de Ven Songqin Pan Yansong Miao Junqi Wang Nana F Keinath Brent Weatherly Liwen Jiang Karin Schumacher Glenn Hicks Natasha Raikhel 2012Cell Research2012,22,2:4
9WONCA研究论文摘要汇编——初级医疗连续性服务及其与老年人生存的关系:一项17年的前瞻性队列研究显示文摘背景尽管连续性服务在基层医疗中是被广泛接受的核心原则,但是关于其优势的证据仍然不足。目的探讨全科医学中连续性服务是否与老年人长寿相关。设计与场所数据来源于阿姆斯特丹纵向衰老研究,对荷兰老年人进行不间断队列研究。研究样本包括1 712例年龄≥60岁的老年人,进行3年随访,周期长达17年,随访其死亡率直至2013年。方法连续性服务被定义为患者和全科医生之间不间断的治疗关系的持续过程。采用赫芬达尔-赫希曼指数计算服务的连续性(COC)。COC指数为1代表最大连续性。将COC指数〈1的患者分为3组,COC最大值的参与者为第4组。采用Cox回归分析探讨COC和存活时间之间的关联。结果 742例参与者(43.3%)COC取得最大值。在生存17年的759例参与者中,251例(33.1%)仍有相同的全科医生服务。COC最小值组(指数〉0~0.500)死亡率高于COC最大值组,差异有统计学意义〔HR=1.20,95%CI(1.01,1.42)〕。目前无混杂因素影响该HR。结论该研究表明全科医学中低连续性服务与高死亡风险相关,应强化该案例以鼓励连续性服务。MAARSINGH O R HENRY Y VAN DE VEN P M 本刊编辑部 2016中国全科医学2016,19,27:4
10Mitochondrial quality control in amyotrophic lateral sclerosis:towards a common pathway?显示文摘Amyotrophic lateral sclerosis(ALS)is a devastating neurodegenerative disorder characterized by loss of upper and lower motor neurons.Different mechanisms contribute to the disease initiation and progression,including mitochondrial dysfunction which has been proposed to be a central determinant in ALS pathogenesis.Indeed,while mitochondrial defects have been mainly described in ALS-linked SOD1 mutants,it is now well established that mitochondria become also dysfunctional in other ALS conditions.In such context,the mitochondrial quality control system allows to restore normal functioning of mitochondria and to prevent cell death,by both eliminating and replacing damaged mitochondrial components or by degrading the entire organelle through mitophagy.Recent evidence shows that ALS-related genes interfere with the mitochondrial quality control system.This review highlights how ineffective mitochondrial quality control may render motor neurons defenseless towards the accumulating mitochondrial damage in ALS.Bilal Khalil Jean-Charles Liévens 2017Neural Regeneration Research2017,12,7:4
11Characterisation of pH decline and meat color development of beef carcasses during the early postmortem period in a Chinese beef cattle abattoir显示文摘This study investigated the pH/temperature decline of beef carcasses in a typical Chinese abattoir and color development as pH declined during rigor onset. A natural cubic spline model was used to model the pH/temperature decline for those carcasses which passed through pH 6.0. Six of the 97 carcasses that exhibited a high(≥6.10) ultimate pH(pHu)(darkcutting) in the M. longissimus lumborum(LL) were sampled, along with the same numbers of normal pHu and intermediate pHu carcasses(5.40–5.79; 5.80–6.10, respectively), to examine color development within 24h postmortem. It was shown that 66.7% of the modeled carcasses were outside the ideal pH/temperature window with a temperature@pH6.0 lower than ideal, suggesting the need for acceleration of the pH decline. The stable and low a~*, b~* and chroma values of high pHu beef within the first 12h indicated dark-cutting beef might be detected earlier than expected.ZHANG Yi-min David L.Hopkins ZHAO Xiao-xiao Remy van de Ven MAO Yan-wei ZHU Li-xian HAN Guang-xing LUO Xin 2018Journal of Integrative Agriculture2018,17,7:4
12Different approaches to assessment of design and management of sustainable urban water systems显示文摘Michiel A. Rijsberman Frans H.M. van de Ven 2000Environmental Impact Assessment Review2000,,3:3
13德国Optosol仪器的准确性与生产应用——真空集热管的涂层太阳吸收比显示文摘1993年我与尤哈(Juh VEN)在澳大利亚悉尼大学应用物理系认识.10年来相互有着联系.2003年9月我们在瑞典哥德堡世界太阳能大会上相遇,尤哈介绍了Optosol仪器用于生产真空集热管吸收涂层的测量.随后,尤哈两次来京,第二次于9月10日带着Optosol仪器访问了九龙山清华阳光真空集热管生产线.殷志强 Juha VEN 2003太阳能2003,,5:2
14Different approaches to assessment of design and management of sustainable urban water systems显示文摘Michiel A. Rijsberman Frans H.M. van de Ven 2000Environmental Impact Assessment Review2000,,3:2
15Endometrial receptivity in an in vitro fertilization program as assessed by spiral artery blood flow, endometrial thickness, endometrial volume, and uterine artery blood flow显示文摘Ralf L Schild Christine Knobloch Christoph Dorn Rolf Fimmers Hans van der Ven Manfred Hansmann 2001Fertility and Sterility2001,,2:2
16Synergistic effect of IL-1,IFN-γ,and TNF-α on RANTES production by human renal tubular epithelial cells in vitro显示文摘Deckers JG Van Der Woude FJ Ven Der Kooij SW 1998J Am Soc Nephrol1998,9,2:2
17Machine-learning the configurational energy of multicomponent crystalline solids显示文摘Machine learning tools such as neural networks and Gaussian process regression are increasingly being implemented in the development of atomistic potentials.Here,we develop a formalism to leverage such non-linear interpolation tools in describing properties dependent on occupation degrees of freedom in multicomponent solids.Symmetry-adapted cluster functions are used to differentiate distinct local orderings.These local features are used as input to neural networks that reproduce local properties such as the site energy.We apply the technique to reproduce a synthetic cluster expansion Hamiltonian with multi-body interactions,as well as the formation energies calculated from first-principles for the intercalation of lithium into TiS2.The formalism and results presented here show that complex multi-body interactions may be approximated by non-linear models involving smaller clusters.Anirudh Raju Natarajan Anton Van der Ven 2018npj Computational Materials2018,,1:2
18Controlling the gelation temperature of biomimetic polyisocyanides显示文摘Thermosensitive polymers show an entropy-driven transition from a well-solvated to a poorly solvated polymer chain, resulting in a more compact globular conformation. The transition at the lower critical solution temperature(LCST) is often sharp, which allows for a wide range of smart material applications.At the LCST, oligo(ethylene glycol)-substituted polyisocyanides(PICs) form soft hydrogels, composed of polymer bundles similar to biological gels, such as actin, fibrin and intermediate filaments. Here, we show that the LCST of PICs strongly depends linearly on the length of the ethylene glycol(EG) tails; every EG group increases the LCSTand thus the gelation temperature by nearly 30 ℃. Using a copolymerisation approach, we demonstrate that we can precisely tailor the gelation temperature between 10 ℃ and 60 ℃and, consequently, tune the mechanical properties of the PIC gels.Paul H.J. Kouwer Paula de Almeida Onno ven den Boomen Zaskia H. Eksteen-Akeroyd Roel Hammink Maarten Jaspers Stijn Kragt Mathijs F.J. Mabesoone RoelandJ.M. Nolte Alan E. Rowan Martin G.T.A. Rutten Vincent A.A. Le Sage Daniel C. Schoenmakers Chengfen Xing Jialiang xu 2018Chinese Chemical Letters2018,29,2:2
19Recent advances on quasi-solid-state electrolytes for supercapacitors显示文摘Solid-state and quasi-solid-state electrolytes have been attracting the scientific community’s attention in the last decade. These electrolytes provide significant advantages, such as the absence of leakage and separators for devices and safety for users. They also allow the assembly of stretchable and bendable supercapacitors. Comparing solid-state to quasi-solid-states, the last provides the most significant energy and power densities due to the better ionic conductivity. Our goal here is to present recent advances on quasisolid-state electrolytes, including gel-polymer electrolytes. We reviewed the most recent literature on quasi-solid-state electrolytes with different solvents for supercapacitors. Organic quasi-solid-state electrolytes need greater attention once they reach an excellent working voltage window greater than 2.5 V.Meanwhile, aqueous-based solid-state electrolytes have a restricted voltage window to less than 2 V. On the other hand, they are easier to handle, provide greater ionic conductivity and capacitance. Recent water-in-salt polymer-electrolytes have shown stability as great as 2 V encouraging further development in aqueous-based quasi-solid-state electrolytes. Moreover, hydrophilic conductive polymers have great commercial appeal for bendable devices. Thus, these electrolytes can be employed in flexible and bendable devices, favoring the improvement of portable electronics and wearable devices(376 references were evaluated and summarized here).Murilo M.Amaral Raissa Venâncio Alfredo C.Peterlevitz Hudson Zanin 2022Journal of Energy Chemistry2022,31,4:2
20Durable Asphalt Pavements Are Self Healing显示文摘The traffic volume and the number of heavy vehicles are growing continuously. Considering the continuous traffic flow and the limited time available for road maintenance,it is very important to design a durable pavement system. Asphalt pavements with a healing capability are believed to be very useful since they can extend the pavement service life thanks to rest periods and hot summers. In order to design durable asphalt pavements,research in understanding and upgrading the self-healing capability of bituminous materials in time is of major importance. The self healing capability of bituminous mastic was evaluated in this research with a direct tension healing test. In the test program,different healing times,crack status and modifications were applied. The results indicate that elastic recovery and flow capacity are important factors for the self healing capability of bituminous materials at different crack phases as simulated with the direct tension test.QIU J VAN DE VEN M F C WU S P YU J Y MOLENAAR A A A 2010武汉理工大学学报2010,32,17:2
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