نتایج جستجو برای: مدل rfm
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BACKGROUND The long-term outcome of atrial fibrillation (AF) ablation demonstrates attrition. This outcome may be due to failure to attenuate the progressive substrate promoted by cardiovascular risk factors. OBJECTIVES The goal of this study was to evaluate the impact of risk factor and weight management on AF ablation outcomes. METHODS Of 281 consecutive patients undergoing AF ablation, 1...
بخشبندی مشتریان و تحلیل رفتار آنها در صنایع تولید و پخش کالاهای پرگردش، با تعداد کثیری از مشتریان متفاوت در نقاط پراکنده، سبب هدفمندشدن فعالیتهای بازاریابی و ارتباط مؤثر آنها با مشتریان میشود. بخشبندی مشتریان از رویکردهای دادهکاوی که به کشف گروههای مشابه از مشتریان منجر میشود، عمدتاً براساس متغیرهای تازگی، تکرار و حجم خرید در مدل RFM انجام میشود. کیفیت بخشبندی، به انتخاب مناسب متغیرهای ...
Two morphologically distinct, H2- and CO2-utilizing methanogens were isolated from gut homogenates of the subterranean termite, Reticulitermes-flavipes (Kollar) (Rhinotermitidae). Strain RFM-1 was a short straight rod (0.4 by 1.2 micron), whereas strain RFM-2 was a slightly curved rod (0.34 by 1.6 microns) that possessed polar fibers. Their morphology, gram-positive staining reaction, resistanc...
BACKGROUND Maternal perception of reduced fetal movement (RFM) is associated with increased risk of stillbirth and fetal growth restriction (FGR). RFM is thought to represent fetal compensation to conserve energy due to insufficient oxygen and nutrient transfer resulting from placental insufficiency. OBJECTIVE To identify predictors of poor perinatal outcome after maternal perception of reduc...
Multiple studies using various approaches have associated reduced fetal movements (RFM) with stillbirth and small for gestational age infants [1,2]. More recently, RFM has been linked to neurodevelopmental delay and a lack of response to treatment for hypoxicischaemic encephalopathy [3,4]. The relationship between adverse pregnancy or infant outcome is thought to be mediated by placental dysfun...
The physical and generalized sensor models are two widely used imaging geometry models in the photogrammetry and remote sensing. Utilizing the rational function model (RFM) to replace physical sensor models in photogrammetric mapping is becoming a standard way for economical and fast mapping from high-resolution images. The RFM is accepted for imagery exploitation since high accuracies have bee...
OBJECTIVE The aims of this study were evaluation of the association of reduced fetal movements (RFM) and small-for-gestational-age (SGA) birth at term and to explore if fetal and maternal outcomes are different with single vs repeated episodes of RFM and normal fetal assessment test results. STUDY DESIGN This was a retrospective cohort study of all singleton pregnancies referred for RFMs at a...
In recent years, customer lifetime value (CLV) has gained increasing importance in both academia and practice. While many advanced techniques have been proposed, the recency/frequency/monetary value (RFM) segmentation framework, and its related probability models, remain a CLV mainstay. In this article, we demonstrate the de_ciency in RFM as a basis for summarizing customer history (data compre...
Social play and tolerance are positively correlated and playful signals are more freely expressed in egalitarian than in despotic species. Macaque species are organized along a continuum from intolerant to tolerant social systems and, for this reason, they are good models to test some hypotheses about the possible linkage between communication and tolerance. We compared facial playful communica...
INTRODUCTION At present there are no reliable non-traumatic and non- invasive methods to analyse the healing process and loosening status after total hip replacement. Therefore early as well as late loosening of prosthesis and interface component problems are difficult to be found or diagnosed at any time. METHODS In a cadaver study the potential application of Resonance Frequency Monitoring ...
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