Preferred Language
Articles
/
jeasiq-725
Comparison of Partial Least Squares and Principal Components Methods by Simulation
...Show More Authors

Abstract                                                                                              

The methods of the Principal Components and Partial Least Squares can be regard very important methods  in the regression analysis, where they are used to convert a set of highly correlated variables to a set of new independent variables, known components and those components are be linear and orthogonal independent from each other , the methods are used to reduce dimensions  in regression analysis                                                                            

In this paper , we use Partial Least Squares method with  Non -linear Iterative partial least squares NIPALS(PLS1) algorithm and the principal components method with Singular Value Decomposition(SVD )algorithm  , the simulation experiments are conduct to compare between their methods  assuming that the error is normally  distributed , several combination are supposed in simulation for both sample size, number of observation, dimension, and we find that the partial least squares method is better than the Principal Components method in two case, number of observation is greater than the number of variables(n>p) and the number of variables is greater than the number of observation (p>n).                                       

Crossref
View Publication Preview PDF
Quick Preview PDF
Publication Date
Sat Jan 12 2019
Journal Name
Journal Of The College Of Education For Women
The relationship between the economic structure and the development of the spatial structure Abu Ghraib District
...Show More Authors

The phenomenon of spatial variation in the economic, social and urban development levels is considered prevalent in most of the economic and social systems,this relates to the concentration of most of those activities in certain regions and because of their rarity in other regions , that led to the emergence of the problem of the sharp contrast between the most developed areas and least developed areas within the same region or within the regions of the same country,
Reduction of this variables , in addition to the development of areas through following up and relying on an effective regional development enabling to reduce unemployment as well as to stop the migration of the unplanned for population,
And the ideal use of available

... Show More
View Publication Preview PDF
Publication Date
Sat Apr 01 2023
Journal Name
Baghdad Science Journal
Correlation Expression between P52 and BCL2 among Iraqi Women with Breast Carcinoma
...Show More Authors

View Publication Preview PDF
Scopus (2)
Crossref (1)
Scopus Crossref
Publication Date
Sat Oct 20 2018
Journal Name
Journal Of Economics And Administrative Sciences
Evaluation of the Quality of Health Services from Patients’ Perspective: A Comparative Study between Public and Private Hospitals
...Show More Authors

ASTRACT

The current study aimed to identify the quality of health services provided by the Omani health sector through the comparison between public and private hospitals in Dhofar Governorate, Oman. A questionnaire has been developed to collect data from 360 patients who received health services in one public Hospital (Sultan Qaboos) and three private Hospitals (Badr Al-Sama, Lifeline, and Al-Hakeeim). The data were analyzed using independent samples T-Test and One Way ANOVA. The results of the study showed that the quality levels of health services offered in private hospitals were better than public hospitals. The study results also reveled that there are significant differences between public hospitals and private hos

... Show More
View Publication Preview PDF
Crossref
Publication Date
Tue Dec 16 2008
Journal Name
Iraqi Journal Of Laser
Treatment of Oral Pyogenic Granuloma by 810 nm Diode Laser
...Show More Authors

Pyogenic granuloma is one of the inflammatory hyperplasia seen in the oral cavity. The
present study included 10 patients with pyogenic granuloma, involving 4 males and 6 females with 1:1.5
male to female ratio. Patient ages ranged from 5 to 85 years (mean, 30 years) and half of the lesions had
pedunculated base, with surface ulceration in 10% of cases. Treatment consisted of resection, using 810
nm diode lasers. Eight patients were anesthetized during the surgical operation by local infiltration of
anesthesia. Only three patients reported mild post-operative pain within the first 24 hours of the healing
period. During the surgical operation there was no significant bleeding so clear surgical field. There was
no blee

... Show More
View Publication Preview PDF
Publication Date
Sat Feb 09 2019
Journal Name
Iraqi Journal Of Laser
Treatment of Oral Pyogenic Granuloma by 810 nm Diode Laser
...Show More Authors

Pyogenic granuloma is one of the inflammatory hyperplasia seen in the oral cavity. The
present study included 10 patients with pyogenic granuloma, involving 4 males and 6 females with 1:1.5
male to female ratio. Patient ages ranged from 5 to 85 years (mean, 30 years) and half of the lesions had
pedunculated base, with surface ulceration in 10% of cases. Treatment consisted of resection, using 810
nm diode lasers. Eight patients were anesthetized during the surgical operation by local infiltration of
anesthesia. Only three patients reported mild post-operative pain within the first 24 hours of the healing
period. During the surgical operation there was no significant bleeding so clear surgical field. There was
no blee

... Show More
View Publication Preview PDF
Publication Date
Wed Mar 18 2020
Journal Name
Baghdad Science Journal
Differentiation of Adipose-Derived Mesenchymal Stem Cells into Neuron-Like Cells induced by using β-mercaptoethanol
...Show More Authors

Background: Adipose derived-mesenchymal stem cells have been used as an alternative to bone marrow cells in this study. Objective: We investigated the in vitro isolation, identification, and differentiation of stem cells into neuron cells, in order to produce neuron cells via cell culture, which would be useful in nerve injury treatment. Method: Mouse adipose mesenchymal stem cells were dissected from the abdominal subcutaneous region. Neural differentiation was induced using β-mercaptoethanol. This study included two different neural stage markers, i.e. nestin and neurofilament light-chain, to detect immature and mature neurons, respectively. Results: The immunocytochemistry results showed that the use of β-mercaptoethanol resulted in

... Show More
View Publication Preview PDF
Scopus (3)
Scopus Clarivate Crossref
Publication Date
Fri Jan 01 2021
Journal Name
E3s Web Of Conferences
Impact of Ozone Used-Alone and Coagulation Aid Treatment on The Reduction of Trihalomethanes Components
...Show More Authors

The whole research paper examines the impact of ozone as either a just use-alone and coagulation benefit, mainly upon the reduction of dissolved organic carbon from the water with a moderate rate of DOC 10.75 mg/land CaCO3 calcium hardness 300 mg/l. A raw water sample has been taken from the Tigris River (Baghdad, Iraq) was being adopted in research work. The performance of ozone therapy has been assessed by calculations of DOC, DOC quantities, UV254, as well as total trihalomethane (TTHM). Research findings have shown that with 0.9 mg O3/mg DOC ozone use-alone, approximately 60% UV254 reduction and approximately 28% DOC reduction will occur.DOC fractionation analysis indicates that within the water samples, ozone could alter the co

... Show More
View Publication
Scopus Crossref
Publication Date
Wed May 24 2017
Journal Name
Ibn Al-haitham Journal For Pure And Applied Sciences
Determination of Phenol Components in Rachis and Leaves of Some Grape Varieties (Vitis vinifera L.)
...Show More Authors

    Total phenols, Proanthocyanidin, Catechin  and Epicatechin wrer extracted and determined in ten rachis and leaves of grape  varieties (Vitis vinifera L.) namely: Shadda Soudda, Rush Meo, Rossi 5, Kamali, Halawani, Black Monica, Dase Al-Anz,  Buhrizi, Rossi 7 and Thompson. through two seasons. The results indicated that the rachis of the tested varieties contain total phenol in concentration (2079.76 and 2557.59), (1458.18 and 2119.89), (2233.01 and 3322.26), (3106.22 and 4613.43), (3251.15 and 4739.05), (1668.88 and 2548.59) and (4163.11 and 6202.90). (3922.22 and 5848.17), (3359.03 and 4915.36) and (1035.45 and 1502.27) mg/kg for the tow seasons, respectively. The rachis of  the white grape varieti

... Show More
View Publication Preview PDF
Publication Date
Sun Jan 01 2006
Journal Name
Journal Of Educational And Psychological Researches
المسرحية بين النقل التلفزيوني والتسجيل في الأستديو (دراسة مقارنة)
...Show More Authors

اهمية البحث والحاجة اليه :

            في بداية ظهور التلفزيون كانت البرامج المقدمة تعتمد على المنوعات والمسرحيات المنقولة من المسرح . وقد استفاد التلفزيون من الفنون التي سبقته مثل المسرح فنرى ان :

" محطات التلفزيون بادرت بتسجيل المسرحيات المتعددة لتملأ بها ساعات الارسال " [1]

            وكذلك

... Show More
View Publication Preview PDF
Publication Date
Mon Dec 30 2002
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
Modeling and Simulation of a Fire Tube Boiler
...Show More Authors

View Publication Preview PDF