نتایج جستجو برای: مدل ols
تعداد نتایج: 124567 فیلتر نتایج به سال:
کشاورزی در منطقة سیستان نقش بسزایی در درآمدزایی و اشتغال روستاییان این منطقه دارد و بررسی عملکرد و عوامل رفتاری تأثیرگذار بر آن اهمیت ویژه ای دارد. ازاین رو در مطالعة حاضر ضمن بررسی خصوصیات اقتصادی- اجتماعی روستاییان، به بررسی عوامل مؤثر بر عملکرد واحدهای کشاورزی در این منطقه پرداخته شده است. داده ها و اطلاعات لازم از طریق تکمیل 100 پرسشنامه از کشاورزان منطقه به دست آمد. برای تحلیل نتایج و یافت...
In this paper, we study the asymptotic distributions for least-squares (OLS), fully modi ed (FM), and dynamic OLS (DOLS) estimators in cointegrated regression models in panel data. We show that the OLS, FM, and DOLS estimators are all asymptotically normally distributed. However, the asymptotic distribution of the OLS estimator is shown to have a non-zero mean. Monte Carlo results examine the s...
The availability of user-friendly software to annotate biological datasets and experimental details is becoming essential in data management practices, both in local storage systems and in public databases. The Ontology Lookup Service (OLS, http://www.ebi.ac.uk/ols) is a popular centralized service to query, browse and navigate biomedical ontologies and controlled vocabularies. Recently, the OL...
In our previous experiments with rats, ovary lipid from Skipjack Tuna (Katsuwonus pelamis) (OLS) was shown to have a mitigating effect on anxiety and/or fear in elevated T-maze tests. This suggests that OLS has some effect on the central nervous system (CNS) of rats. Thus, we performed experiments to examine the status of CNS in rats given OLS. The effect of OLS on chronic stress was also exami...
Using recently developed panel unit root and panel cointegration tests and the FullyModified OLS (FMOLS) methodology, this paper estimates the impact of remittances on the economic growth of selected upper and lower income Latin American & Caribbean countries. Despite a large flow of remittances to the region, there have been relatively few empirical studies assessing the impact of remittances ...
BACKGROUND The aims of the present study were to investigate the factors affecting one-leg standing (OLS) time in patients with end-stage knee osteoarthritis (OA) and to clarify the age-related recovery process following total knee arthroplasty (TKA) in the early postoperative period. METHODS A total of 80 knees of 40 patients with knee OA were enrolled. They were asked to perform relaxed sta...
This paper is concerned with parameter estimation and inference in a cointegrating regression, where as usual endogenous regressors as well as serially correlated errors are considered. We propose a simple, new estimation method based on an augmented partial sum (integration) transformation of the regression model. The new estimator is labelled Integrated Modi ed Ordinary Least Squares (IM-OLS)...
Oligodendrocyte precursors (OPs) continue to proliferate and generate myelinating oligodendrocytes (OLs) well into adulthood. It is not known whether adult-born OLs ensheath previously unmyelinated axons or remodel existing myelin. We quantified OP division and OL production in different regions of the adult mouse CNS including the 4-month-old optic nerve, in which practically all axons are alr...
این پژوهش با الهام گرفتن از نتایج یک طرح مطالعاتی کاربردی، رویکرد سلسلهمراتبی جهت پیگیری فرایند توسعه تأمینکنندگان و حمایت تصمیمات موجود در هر مراحل آن ارائه میکند. ابتدا، زمینههای تأمین نیازمند سپس واجد شرایط هریک زمینهها به کمک تصمیمگیری چندشاخصه بهترین-بدترین مشخص میگردند. معیارهای شناسایی نیز مرور مطالعات پیشین بهرهگیری نظرات خبرگان حوزهی خرید استخراجشدهاند. درنهایت، مدل ریاضی ...
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