243 research outputs found

    Comparison of the Population Excess Fraction of <i>Chlamydia trachomatis</i> Infection on Pelvic Inflammatory Disease at 12-months in the Presence and Absence of Chlamydia Testing and Treatment:Systematic Review and Retrospective Cohort Analysis

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    Background: The impact of Chlamydia trachomatis (chlamydia) control on the incidence of pelvic inflammatory disease (PID) is theoretically limited by the proportion of PID caused by chlamydia. We estimate the population excess fraction (PEF) of treated chlamydia infection on PID at 12-months in settings with widespread chlamydia control (testing and treatment) and compare this to the estimated PEF of untreated chlamydia. Methods: We used two large retrospective population-based cohorts of women of reproductive age from settings with widespread chlamydia control to calculate the PEF of treated chlamydia on PID at 12-months. We undertook a systematic review to identify further studies that reported the risk of PID in women who were tested for chlamydia (infected and uninfected). We used the same method to calculate the PEF in eligible studies then compared all estimates of PEF. Results: The systematic review identified a single study, a randomised control led trial of chlamydia screening (POPI-RCT). In the presence of testing and treatment <10% of PID at 12-months was attributable to treated (baseline) chlamydia infections (Manitoba: 8.86%(95%CI 7.15-10.75); Denmark: 3.84%(3.26-4.45); screened-arm POPI-RCT: 0.99%(0.00-29.06)). In the absence of active chlamydia treatment 26.44% (11.57-46.32) of PID at 12-months was attributable to untreated (baseline) chlamydia infections (deferred-arm POPI-RCT). The PEFs suggest that eradicating baseline chlamydia infections could prevent 484 cases of PID at 12-months per 100,000 women in the untreated setting and 13- 184 cases of PID per 100,000 tested women in the presence of testing and treatment. Conclusion: Testing and treating chlamydia reduced the PEF of chlamydia on PID by 65% compared to the untreated setting. But in the presence of testing and treatment over 90% of PID could not be attributed to a baseline chlamydia infection. More information is needed about the aetiology of PID to develop effective strategies for improving the reproductive health of women

    長者學習研究計劃2011-2012 : 計劃介紹及教材冊

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    有見長者的學歷及學習能力日高,長者的需求亦有所不同,對長者需求的研究實是需要的。加上部份長者表示希望參與較高層次的學習活動及貢獻社會,故嶺南大學服務研習處舉辦長者學習研究計劃2011-2012,培訓長者成為研究人員,期望由長者的角度出發,為長者學習 的長遠發展作出研究及提出建議。 計劃目標: • 培養長者對學術研究的興趣; • 提供研究技巧培訓課程; • 分析學苑現有課程的成效; • 探討長者學習的政策及制定長遠發展方向; • 透過長幼參與研究計劃,增加兩代溝通,促進跨代共融。 本手冊收錄了有關計劃詳情以及課程教材。https://commons.ln.edu.hk/osl_book/1002/thumbnail.jp

    A handbook for using elder academy as a platform of other learning experiences

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    This handbook will discuss how school syllabus, Other Learning Experiences (OLE) and Elder Academy (EA) can be integrated. It will provide some structures for schools as a reference and help develop a comprehensive learning plan. Besides, the handbook will mention different roles and responsibilities of stakeholders, as well as the suggestions and guidelines for assessment. The programs and activities in the “Elder Academy at Lingnan” will be taken as examples to demonstrate the guidelines. This can provide a better understanding of the operation mode of the integration between school curricula, OLE and EA. Hence, interested stakeholders can perform their own plans more systematically and effectively.https://commons.ln.edu.hk/osl_book/1000/thumbnail.jp

    Elder academy : curriculum design and operation model = 長者學苑 : 課程設計與運作模式

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    Ever since the launching of the Elder Academy in 2007, numerous schools have joined the fray bringing with them valuable innovations, presenting the elderly and students with a wide variety of educational activities. The experiences of the Elder Academy at Lingnan and other academies are summarized in this handbook, in order to provide a frame of reference and an operation guide for other schools and organizations, so that they may design their own comprehensive teaching and learning plans. In this handbook, the roles and responsibilities of participating organizations are explained, and there are guidelines and suggestions regarding assessment methods. Apart from the instructions on teaching and learning activities, examples of course syllabi and activities are also included to offer some insights into the operation of the schools and their courses, allowing institutions to better carry out similar projects in a more systematic manner.https://commons.ln.edu.hk/osl_book/1001/thumbnail.jp

    長者學習研究計劃2011-2012 : 學員作品集

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    有見長者的學歷及學習能力日高,長者的需求亦有所不同,對長者需求的研究實是需要的。加上部份長者表示希望參與較高層次的學習活動及貢獻社會,故嶺南大學服務研習處舉辦長者學習研究計劃2011-2012,培訓長者成為研究人員,期望由長者的角度出發,為長者學習 的長遠發展作出研究及提出建議。計劃目標:• 培養長者對學術研究的興趣;• 提供研究技巧培訓課程;• 分析學苑現有課程的成效;• 探討長者學習的政策及制定長遠發展方向;• 透過長幼參與研究計劃,增加兩代溝通,促進跨代共融。 本作品集收錄了有關計劃中,長者學員們所撰寫的研究報告。https://commons.ln.edu.hk/osl_book/1003/thumbnail.jp

    Lupus nephritis in Chinese children--a territory-wide cohort study in Hong Kong

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    We report a multicenter study of Chinese children in Hong Kong with systemic lupus erythematosus (SLE) nephritis. Children were included if: they fulfilled the ACR criteria, had significant proteinuria or casturia, were Chinese and younger than 19 years and had been diagnosed with SLE between January 1990 and December 2003. Investigators in each center retrieved data on clinical features, biopsy reports, treatment and outcome of these patients. There were 128 patients (eight boys, 120 girls; mean age: 11.9+/-2.8 years). About 50% presented with multisystem illness and 40% with nephritic/nephrotic symptoms. Negative anti-dsDNA antibodies were found in 6% of the patients. Renal biopsy revealed WHO Class II, III, IV and V nephritis in 13 (10%), 22 (17%), 69 (54%) and 13 (10%) patients, respectively. The clinical severity of the nephritis did not accurately predict renal biopsy findings. The follow-up period ranged from 1 to 16.5 years (mean+/-SD: 5.76+/-3.61 years). During the study five patients died (two from lupus flare, one from cardiomyopathy, two from infections). Four patients had endstage renal failure (ESRF) (one died during a lupus flare). All deaths and end-stage renal failure occurred in the Class IV nephritis group. Chronic organ damage was infrequent in the survivors. The actuarial patient survival rates at 5, 10 and 15 years of age were 95.3, 91.8, and 91.8%, respectively. For Class IV nephritis patients, the survival rates without ESRF at 5, 10, and 15 years were 91.5, 82.3 and 76%, respectively. The survival and chronic morbidity rates of the Chinese SLE children in the present study are comparable to those of other published studies.postprin

    CoNLL 2017 Shared Task : Multilingual Parsing from Raw Text to Universal Dependencies

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    The Conference on Computational Natural Language Learning (CoNLL) features a shared task, in which participants train and test their learning systems on the same data sets. In 2017, one of two tasks was devoted to learning dependency parsers for a large number of languages, in a real world setting without any gold-standard annotation on input. All test sets followed a unified annotation scheme, namely that of Universal Dependencies. In this paper, we define the task and evaluation methodology, describe data preparation, report and analyze the main results, and provide a brief categorization of the different approaches of the participating systems.Peer reviewe

    Protein alterations associated with temozolomide resistance in subclones of human glioblastoma cell lines

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    Temozolomide (TMZ) is the standard chemotherapeutic agent for human malignant glioma, but intrinsic or acquired chemoresistance represents a major obstacle to successful treatment of this highly lethal group of tumours. Obtaining better understanding of the molecular mechanisms underlying TMZ resistance in malignant glioma is important for the development of better treatment strategies. We have successfully established a passage control line (D54-C10) and resistant variants (D54-P5 and D54-P10) from the parental TMZ-sensitive malignant glioma cell line D54-C0. The resistant sub-cell lines showed alterations in cell morphology, enhanced cell adhesion, increased migration capacities, and cell cycle arrests. Proteomic analysis identified a set of proteins that showed gradual changes in expression according to their 50% inhibitory concentration (IC50). Successful validation was provided by transcript profiling in another malignant glioma cell line U87-MG and its resistant counterparts. Moreover, three of the identified proteins (vimentin, cathepsin D and prolyl 4-hydroxylase, beta polypeptide) were confirmed to be upregulated in high-grade glioma. Our data suggest that acquired TMZ resistance in human malignant glioma is associated with promotion of malignant phenotypes, and our reported molecular candidates may serve not only as markers of chemoresistance but also as potential therapeutic targets in the treatment of TMZ-resistant human malignant glioma, providing a platform for future investigations

    Demographics of cauda equina syndrome: a population based incidence study

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    Introduction: Cauda Equina Syndrome (CES) has significant medical, social and legal consequences. Understanding the number of people presenting with CES and their demographic features is essential for planning healthcare services to ensure timely and appropriate management. We aimed to establish the incidence of CES in a single country and stratify incidence by age, gender, and socioeconomic status. As no consensus clinical definition of CES exists, we compared incidence using different diagnostic criteria. Methods: All patients presenting with radiological compression of the cauda equina due to degenerative disc disease and clinical CES requiring emergency surgical decompression during a one-year period were identified at all centers performing emergency spinal surgery across Scotland. Initial patient identification occurred during the emergency hospital admission, and case ascertainment was checked using ICD-10 diagnostic coding. Clinical information was reviewed and incidence rates for all demographic and clinical groups were calculated. Results: We identified 149 patients with CES in one year from a total population of 5.4 million, giving a crude incidence of 2.7 (95% CI: 2.3-3.2) per 100,000 per year. CES occurred more commonly in females and in the 30-49 year age range, with an incidence per year of 7.2 (95% CI 4.7-10.6) per 100,000 females age 30-39. There was no association between CES and socioeconomic status. CES requiring catheterisation had an incidence of 1.1 (95% CI: 0.8-1.5) per 100,000 adults per year. The use of ICD-10 codes alone to identify cases gave much higher incidence rates, but was inaccurate, with 55% (117/211) of patients with a new ICD-10 code for CES found not to have CES on clinical notes review. Conclusion: CES occurred more commonly in females and in those between 30-49 years, and had no association with socioeconomic status. The incidence of CES in Scotland is at least four times higher than previous European estimates of 0.3-0.6 per 100,000 population per year. Incidence varies with clinical diagnostic criteria. To enable comparison of rates of CES across populations, we recommend using standardised clinical and radiological criteria and standardisation for population structure
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