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涩北一号气田安全钻井技术 被引量:2
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作者 蒲继才 朱佩红 +1 位作者 赵玉生 张玉冰 《青海石油》 2011年第4期69-71,共3页
涩北一号气田是第四系不成岩地层,地层岩性疏松、欠压实、成岩性差、气层埋藏浅、分布井段长、气水界面复杂;地层承压能力低,易漏、易喷、易缩径;易漏井段为1110~1120m、1250~1300m及1300m以下。随着气田的开发,近年来在钻井中发现原... 涩北一号气田是第四系不成岩地层,地层岩性疏松、欠压实、成岩性差、气层埋藏浅、分布井段长、气水界面复杂;地层承压能力低,易漏、易喷、易缩径;易漏井段为1110~1120m、1250~1300m及1300m以下。随着气田的开发,近年来在钻井中发现原属正常地层压力层系的浅部,因发生异常高压,造成钻井中"上吐下泄"的复杂及事故,给开发过程中的钻井作业带来了极大的复杂和风险。 展开更多
关键词 压力紊乱 钻井难点 技术措施
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Serotonin as a key regulator of fear memory
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《Bulletin of the Chinese Academy of Sciences》 2008年第4期210-211,共2页
Serotonin (5-HT), an important neurotransmitter, has been implicated in a wide range of disorders such as depression, anxiety, post-traumatic stress disorder (PTSD), and learning and memory disorders. Recent work of ... Serotonin (5-HT), an important neurotransmitter, has been implicated in a wide range of disorders such as depression, anxiety, post-traumatic stress disorder (PTSD), and learning and memory disorders. Recent work of CAS researchers has shown that mice lacking serotonin are less anxious compared to control animals but retain fearful memories for much longer time. A study conducted by CAS researchers may contribute towards developing treatments for PTSD, where long lasting fearful memories bring constant pain and sufferings to individuals who cannot forget them. 展开更多
关键词 复合胺 神经递质 记忆混乱 压力紊乱
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Early recognition of abdominal compartment syndrome in patients with acute pancreatitis 被引量:32
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作者 Zilvinas Dambrauskas Audrius Parseliunas +2 位作者 Antanas Gulbinas Juozas Pundzius Giedrius Barauskas 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第6期717-721,共5页
AIM: To assess the value of widely used clinical scores in the early identification of acute pancreatitis (AP) patients who are likely to suffer from intra-abdominal hypertension (IAH) and abdominal compartment s... AIM: To assess the value of widely used clinical scores in the early identification of acute pancreatitis (AP) patients who are likely to suffer from intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS).METHODS: Patients (η = 44) with AP recruited in this study were divided into two groups (ACS and non-ACS) according to intra-abdominal pressure (IAP) determined by indirect measurement using the transvesical route via Foley bladder catheter. On admission and at regular intervals, the severity of the AP and presence of organ dysfunction were assessed utilizing different multifactorial prognostic systems: Glasgow-Imrie score, Acute Physiology and Chronic Health Evaluation Ⅱ (APACHE-Ⅱ) score, and Multiorgan Dysfunction Score (MODS). The diagnostic performance of scores predicting ACS development, cut-off values and specificity and sensitivity were established using receiver operating characteristic (ROC) curve analysis.RESULTS: The incidence of ACS in our study population was 19.35%. IAP at admission in the ACS group was 22.0 (18.5-25.0) mmHg and 9.25 (3.0-12.4) mmHg in the non-ACS group (P 〈 0.01). Univariate statistical analysis revealed that patients in the ACS group had significantly higher multifactorial clinical scores (APACHE Ⅱ, Glasgow-Imrie and MODS) on admission and higher maximal scores during hospitalization (P 〈 0.01). ROC curve analysis revealed that APACHE Ⅱ, Glasgow-Imrie, and MODS are valuable tools for early prediction of ACS with high sensitivity and specificity, and that cut-off values are similar to those used for stratification of patients with severe acute pancreatitis (SAP).CONCLUSION: IAH and ACS are rare findings in patients with mild AR Based on the results of our study we recommend measuring the IAP in cases when patients present with SAP (APACHE Ⅱ 〉 7; MODS 〉 2 or Glasgow-Imrie score 〉 3). 展开更多
关键词 Acute pancreatitis Abdominal compartment syndrome Intra-abdominal pressure Intra-abdominal hypertension Organ dysfunction
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