Due to the large increase in the use of data communication and information exchange
services of different types in different environments, the standard and the programming
had to be a language of characterization is ideal for scalability and develo
pment that serve
the growing needs in the best form and in the shortest possible time and was the most
widely used language and the most widely used XML language.
he adoption of graphics architecture sometimes created a problem affecting the
performance of information transmission networks due to the large volume of data
exchanged as well as the need for large storage capacity at both ends of the transmission
and reception.
Effective ways of reducing the amount of data exchanged through the network had to
be found.
There have been many scientific researches and practical experiments on finding
effective ways to reduce the actual size of the data and by adopting different parameters
that affect the process of compressing the files so as to achieve better results by reducing
the volumes of files exchanged with attention to times of compression and decompression
of files.
In this research, we focused on the study and comparison of some compression
algorithms for files and their effect on data communication in networks.
The asymmetric face is common so that increased interest in it .
there are different ways to assess the asymmetry. Computed
tomography is an accurate way that enable the examiner for reading the
face at three planes ,and present three-dimensional
information on the
cranial mandibular Complex whereas (3D) analysis is essential for
making a precise diagnosis of craniofacial morphology . Aim : This
research aims to study the asymmetric at the facial patterns
malocclusion (class I. Class III) using CT .
We conducted a randomized clinical trial on 32 subjects in 2 groups with chronic
diseases of the sphenoid sinus (each consisting of 16 patients) to evaluate CT navigation
during Functional Endoscopic Sinus Surgery. All patients registered in our st
udy met the
widely accepted criteria to be treated with FESS. 16 patients were operated on with FESS
with CT navigation while 16 patients were operated on with FESS without navigation. The
result drawn showed no significant statistical difference in the outcome of the operations
when we used the CT navigation during FESS compared with the time we did not use it.
However, we believe it is an asset to the ENT surgeon in difficult and critical operations
like the sphenoid sinus surgery as it brings precision and peace to the surgeon. We
recommend using CT navigation as a useful adjunct added to the surgeon’s knowledge &
experience but not as a replacement to these necessities.
In the light of the circumstances in the contemporary world of privatization, this research aims to study the effect of the privatization on the technical efficiency of container terminal using Stochastic Frontier Analysis, the study has applied on t
he most important Mediterranean container terminals. The results concluded that the technical efficiency rate was 76.17%. The full private ownership of container terminals does not reflect the high levels of technical efficiency. The full public ownership of container terminals also did not reflect the high levels of technical efficiency, but it is the best of the private sector. However, the technical efficiency of public container terminal can be improved with participation of the private sector, and advised partnership between the public sector and the private sector with rate of 38.5% according to the results of research.
Container terminals are different in the degree of service for container ships, which
increased recently and especially in the Mediterranean, also differ in use of the amount of
inputs required for operational process, which create the problem of d
eclining technical
efficiency of container terminals Mediterranean. Therefore, the researcher measured the
efficiency (12) a major container terminal in the Mediterranean in 2010, using the Data
Envelopment Analysis (DEA). Where the inputs: Number of quay cranes, and space of
terminal, and the output was the annual throughput of containers. The practical results
showed that the rate of technical efficiency – (CRS) was 49%, while the rate of technical
efficiency – (VRS) 69.3%. Tangier container terminal achieved the best level of technical
and scale efficiency, While Mersin, Algeciras, and Tartous achieved the technical
efficiency only, while remaining terminals did not achieve any efficiency, Therefore
advisable to reconsider in their used inputs to improve their efficiency.
Forty one patients with Hodgkin’s disease (HD) were investigated with 67Ga Scintigraphy before and after the completion of chemotherapy. At the same time, all patients underwent computer tomography (CT) scans. Patients were followed up for 28-60 mont
hs (average 40 months). Patients were divided into groups according to the positivity or negativity of the gallium scan after chemotherapy: 32 patients had negative gallium scans, and 9 patients had positive gallium scans. In the gallium–negative group, 18.7% of the patients relapsed and 93.8% were alive at the end of the follow-up. In the gallium positive-group, 88.8% of the patients had recurrent disease and 77.7% were alive after intensive chemotherapy. There was a statistically significant difference in the overall survival between patients with positive gallium results and patients with negative gallium results (P= 0.0041). The disease-free survival differed significantly between patients with positive gallium scan and patients with negative gallium scan at the end of chemotherapy (P< 0.001). The relative risk of death was 4.3 and the relative risk of relapse was 12 for patients with positive gallium scans, in comparison to those with negative gallium scans. The positive and negative predictive value for predicting relapse was 89% and 81% respectively.
Success clinical attempts have been carried out to support fixed functional
appliances by using skeletal anchor plates placed in the symphysis to avoid mandibular incisors
protrusion.
Apical root resorption is a common adverse
effect during orthodontic treatment, specially the intrusion forces. Apical
photographs by using the parallel technique and with the help of some
formulas were the most common approaches to investigate th
e root
resorption. The aim of this study was to study the reliability of periapical
photographs in evaluating of root length shortening during orthodontic
intrusion forces, by comparing with that diagnosed by using the CT-scan
images.
This study included 96 meningiomas treated between the years of 1999 and
2003 .
The age of patients was between 18-80 years ,with a mean age of 49.16 years.
Females constituted 65.6% of the patients ,while males constituted 34.4%.
Large percent o
f cases was between 4th to 6th decade of age, ( 56, 2% of all
patients).
Signs of raised intracranial pressure dominated the clinical picture
presenting in 62% of patients, while epilepsy was the only symptom in 15%
of the patients . MRI was performed in 81% of patients. The other
patients were diagnosed by CT scan.
Tumors were hemispheral in 74% of patients. The operating microscope
and ultrasonic aspirator were used in 85% of cases.15% of tumors were
removed using the classical methods,
Total removal was achieved in 90% of cases. Clinical improvement was seen
in 60.45 of cases while deterioration was seen in only 5.2% of cases.
Complications included cerebral edema in five patients, and tumor
recurrence in 5.2% of cases. Tumors were benign in 88%.Mortality was
2%.
