Principal components analysis (PCA) is a popular descriptive multivariate method for handling quantitative data. In PCA of a mixture of quantitative and qualitative data, it requires quantification of qualitative data to obtain optimal scaling data and use ordinary PCA. The extended PCA including such quantification is called nonlinear PCA, see Gifi [Gifi, 1990]. The existing algorithms for non...

Objective: To preliminarily assess the immune status of patients with prostate cancer through detecting various immune indexs and then analyse the relationship between immune status and clinical factors such as clinical stage, pathological classification and endocrine therapy. Methods: Flow cytometry was used to detect the percentage of CD4, CD8and NK cells in peripheral blood lymphocyte (PBL) ...

STUDY OBJECTIVE To assess concentrations of morphine and its metabolites after patient-controlled analgesia (PCA). DESIGN Pilot pharmacokinetic study of morphine and pharmacokinetic simulation. SETTING Post-anesthesia care room and ward of an academic teaching hospital. PATIENTS 10 ASA physical status I, II, and III postoperative surgical patients. INTERVENTIONS Patients received morphi...

AIM To investigate the rates of prostate cancer (PCa) in radical cystoprostatectomy (RCP) specimens for bladder cancer in mainland China. To determine the follow-up outcome of patients with two concurrent cancers and identify whether prostate-specific antigen (PSA) is a useful tool for the detection of PCa prior to surgery. METHODS From January 2002 to January 2007, 264 male patients with bla...

Increased CCL2 expression in prostate cancer (PCa) cells enhanced metastasis via macrophage recruitment. However, its linkage to androgen receptor (AR)-mediated PCa progression remains unclear. Here, we identified a previously unrecognized regulation: targeting AR with siRNA in PCa cells increased macrophage recruitment via CCL2 up-regulation, which might then result in enhancing PCa invasivene...

BACKGROUND While it is known that posterior cerebral artery (PCA) infarction may simulate middle cerebral artery (MCA) infarction, the frequency and localization of this occurrence are unknown. OBJECTIVE To determine the frequency of PCA infarction mimicking MCA infarction and the territory of the PCA most commonly involved in this simulation. DESIGN We studied 202 patients with isolated in...

اندازه‌گیری پرتو گاما در زمینه‌های مختلف تحقیقاتی نیازمند آشکارسازهای کارآمد است. زمینه دزیمتری فوتون آشکارساز جرقه‌ای NaI(Tl) به عنوان یکی از سوسوزن معدنی (غیرآلی)، علت دارا بودن مقدار بالای نور خروجی بسیار حایز اهمیت این پژوهش سعی گردیده است، با کمک کد مونت‌کارلو (MCNPX) مقدمات مشخصه‌یابی توسط و بهره‌گیری روش‌های متفاوت محاسبه دز (تالی‌های 6F، 4*F، 6+F 8*F) انجام شود. طور معمول، یک تابش (شمار...

INTRODUCTION A classification framework for posterior cortical atrophy (PCA) is proposed to improve the uniformity of definition of the syndrome in a variety of research settings. METHODS Consensus statements about PCA were developed through a detailed literature review, the formation of an international multidisciplinary working party which convened on four occasions, and a Web-based quantit...

هدف: پژوهش حاضر با هدف شناسایی و اولویت‌بندی پیشایندها پسایندهای سبک رهبری چابک استفاده از روش دلفی فازی صورت پذیرفت.طراحی/ روش‌شناسی/ رویکرد: این نوع پژوهش‌های آمیخته رویکرد کیفی کمی در پارادایم استقرایی است که نظر هدف، کاربردی لحاظ ماهیت روش، اکتشافی است. جامعه آماری شرکت‌های دانش‌بنیان استان لرستان هستند 30 نفر خبرگان آنها بر اساس اصل کفایت نظری نمونه‌گیری هدفمند انتخاب شده‌اند. ابزار گردآور...