Xem 1-20 trên 57 kết quả Longitudinal data
  • This paper develops theory missing in the sizeable literature that uses data envelopment analysis to construct return : risk ratios for investment funds. It explores the production possibility set of the investment funds to identify an appropriate form of returns to scale. It discusses what risk and return measures can justifiably be combined and how to deal with negative risks, and identifies suitable sets of measures. It identifies the problems of failing to deal with diversification and develops an iterative approximation procedure to deal with it.

    pdf23p thangbienthai 20-11-2012 26 4   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học thế giới đề tài: Use of the score test as a goodness-of-fit measure of the covariance structure in genetic analysis of longitudinal data

    pdf14p toshiba19 08-11-2011 19 2   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học thế giới đề tài: EM-REML estimation of covariance parameters in Gaussian mixed models for longitudinal data analysis

    pdf0p toshiba19 15-11-2011 15 2   Download

  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : Strong consistency of estimators in partially linear models for longitudinal data with mixingdependent structure

    pdf18p dauphong11 06-02-2012 18 2   Download

  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Modeling longitudinal data in acute illness...

    pdf2p coxanh_4 26-10-2011 21 1   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Estimating covariance functions for longitudinal data using a random regression model

    pdf0p toshiba19 15-11-2011 12 1   Download

  • Preliminary analysis of the data reveals some noteworthy similarities and differences between Chile and the other countries considered. Over this sample period, Chilean interest rates are on average higher, more volatile, and less persistent than the interest rates for the other countries. However, in Chile, the degree of co-movement between retail bank interest rates and the money market rate is essentially the same as in other countries.

    pdf46p taisaovanchuavo 23-01-2013 18 5   Download

  • Piggy Bank allows the user to tag each information item with several keywords, thereby fitting it simultaneously into several organizational schemes. For example, a photograph can be tagged both as “sepia” and “portrait”, as it fits into both the “effect” organizational scheme (among “black & white,” “vivid,” etc.) and the “topic” scheme (among “landscape,” “still life,” etc.).

    pdf0p machuavo 19-01-2013 18 3   Download

  • The aim of this paper is to investigate the use of sample reweighting, in a behavioural tax microsimulation model, to examine the implications for government taxes and expenditure of population ageing in Australia. Tax microsimulation models are based on large-scale cross-sectional surveys containing substantial information about the characteristics of individuals and house- holds.

    pdf11p taisaovanchuavo 26-01-2013 19 3   Download

  • English noun/verb (N/V) pairs (contract, cement) have undergone complex patterns of change between 3 stress patterns for several centuries. We describe a longitudinal dataset of N/V pair pronunciations, leading to a set of properties to be accounted for by any computational model. We analyze the dynamics of 5 dynamical systems models of linguistic populations, each derived from a model of learning by individuals.

    pdf11p hongdo_1 12-04-2013 17 2   Download

  • The annual IRS cross-sections are stratified samples, with the probability of inclusion rising steeply with total income. 6 Variables includemost of the values from the 1040 tax form and associated schedules, as well as data from Social Security records, such as the age and gender of each individual represented on the return. 7 The 1987 cross-sectional sample of about 88,000 returns is the base year of the panel. The panel was constructed by matching, in each subsequent year, the full population of tax returns that appeared in the 1987 sample.

    pdf24p quaivattim 04-12-2012 9 1   Download

  • The latter workshops may not have the capital to buy all the necessary logs. They either use loans from their final buyers or obtain their supplies in a large number of small purchases, or do both. These workshops subcontract the initial sawmilling, just after buying the logs, before bringing the processed logs to their workplace. The sawmilling mainly consists of splitting the logs into planks, which are later used in manufacturing the components. The recovery rate in this initial step is about 94.

    pdf60p can_thai 10-12-2012 21 1   Download

  • Freeform fabrication technology does not require pre-formed mandrels or tooling; instead, it builds physical objects directly from computer graphical data. This type of technology is also known as layer manufacturing, since it constructs the three- dimensional object layer by layer (Jacobs, 1992; Beaman et al., 1997). The technology has proved that it can help to rapidly provide feedback on design concepts, discover inconsistencies in the design, modify the design, and eliminate inconsistency before fabricating the design.

    pdf12p quynho77 13-11-2012 14 0   Download

  • Tham khảo sách 'bacteriophages', khoa học tự nhiên, công nghệ môi trường phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf268p conquynho32 18-09-2012 38 12   Download

  • The typical method used in training and testing assessment conducted in this task will be considered and are as follows. Training in object recognition is often related to the training of an experiment. In the case of object recognition memory, as a measure to declare memory, acquisition is said to occur less exposure to the stimulus is learning / more acceptable in the absence of declared memory (eg a procedure for memory skills). Training in object recognition task involves exposing rodents second stimulus....

    pdf360p lulanphuong 26-03-2012 42 10   Download

  • Wireless networks, especially sensor (WSN) is a promising technology for monitoring and the collection of specific measures in any environment. Many applications have been imagine, in a wide range of areas such as military, commercial, biological, emergency applications of health care. A sensor is a physical component may have to perform three tasks: define a physical quantity, treat any such information, and transmit this information to sink (Kumar et al, 2008; Buford et al, 2009; Olfati-Saber et al, 2007)....

    pdf666p samsungwifi 03-04-2012 48 9   Download

  • In some cases, the larger cells may be further distinguished based on their scattering characteristics (coccolithophorids) or the presence of both PE and chlorophyll (cryptophytes) (Olson et al., 1989; Collier & Campell, 1999). Many authors have reported the distributions and dynamics of each photosynthetic group in the water column in different marine environments (Li, 1995; Campbell & Vaulot, 1993; Vaulot & Marie, 1999).

    pdf256p yeutinh98 22-09-2012 21 8   Download

  • Imagine that you are hired by your state government to evaluate the effectiveness of a publicly funded job training program. Suppose this program teaches workers various ways to use computers in the manufacturing process. The twenty-week program offers courses during nonworking hours. Any hourly manufacturing worker may participate, and enrollment in all or part of the program is voluntary. You are to determine what, if any, effect the training program has on each worker’s subsequent hourly wage....

    pdf819p mikhailduong 17-05-2012 31 6   Download

  • An investor in a forex fund should be sophisticated enough to understand the risks associated with forex trading. Many investors would be interested in forex funds if they had the opportunity. Because advertising of the fund and any other non-personal communications are prohibited, and the media has touted the risks over the benefits, investors must be sought in more direct and creative ways. A trader may find that in addition to family and close friends, many colleagues and casual acquaintances may be potential investors.

    pdf8p quaivatdo 18-11-2012 22 6   Download

  • The current study was undertaken in a new manufactured house set up as a research facility. The plan was to conduct longitudinal measurements of VOC concentrations in the house along with measurements of key physical parameters including house air change rate, indoor and outdoor temperature and relative humidity, and wind conditions over a period of approximately one year. The primary objective was to evaluate changes in the emissions of formaldehyde and other VOCs in response to time, house air change rate, and the other parameters.

    pdf149p ut_hai_can 29-12-2012 25 6   Download

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