ABSTRACT

The goal of this study was to investigate the occurrence and distribution of hyperdontia, hypodontia (which

includes mesiodens and fused teeth), talon cusps, microdontia (which includes peg-shaped lateral incisors), and

macrodontia in patients attending private dental clinics in Gharyan, Libya. During ordinary patient

examinations, the inquiry was undertaken clinically and radiographically. A total of 1219 participants were

included in the study (358 males and 861 females). 57 of patients had dental anomalies in the percentage of

(4.67%), 21 patients (1.72%) had missing teeth, 15 of them had one missing permanent tooth and 6 patients had

two missing permanent teeth (the lower 2nd premolar was the most tooth loss 0.49%). In addition, the study

showed that 16 patients had supernumerary teeth, 10 patients had microdontia and 7 patients had macrodontia,

whereas, two patients had talon cusp. Early detection of a treatable abnormality is critical in developing a

thorough treatment strategy for the patient. Some of the unpleasant impact should be avoidable. In some

circumstances; functional, cosmetic, and occlusal discord can be detected early enough to warrant interpret of

sessional consultation and treatment.

KEYWORDS: dental anomalies; hypodontia; microdontia; macrodontia

Abstract

The rock units of Wadi El-shati were classified to group of clusters to explain the concentration of iron ore by using enhanced satellite image. The several images of single band of Thematic Mapper (TM7) of Landsat were combined to produce multispectral image bands. It was processed by group of filters after the false color image has been made. The filtered image was classified with unsupervised classification after the image ratio has been done by dividing band 3 on band1. Finally, we reached the classified image has concentration of iron tone.

Single carrier with frequency domain equalization (SC/FDE) substantially out performs OFDM in BER performance for Ultra Wideband (UWB), a result already reported. In this paper we provide an explanation and justify this superiority. We showed besides, by only a proper selection of both cyclic prefix duration and the period of fast Fourier transform an extra gain is obtainable. This performance enhancement is in favor of SC/FDE's superiority for UWB in the context of internet of things.

Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) are among the common biomarkers which have been investigated in serum of patients suffering from end-stage renal disease (ESRD) and infections of hepatitis B virus (HBV) and hepatitis B virus (HBC). The present study aimed to statistically investigate whether serum levels of those enzymes and their ratio (AST/ALT) vary between hepatitis B and C patients with or without ESRD. Serum levels of AST and ALT were measured in 228 subjects of both genders, and those subjects were included in these groups: HBV and HCV patients, patients suffering from comorbidity of HBV/ESRD and HCV/ESRD as well as healthy subjects representing a control group. Means of serum level of ALT and AST for both genders in all patient groups were higher than that of control group and higher than the upper limit of ALT and AST reference intervals. MANOVA results revealed that group effect on the three variables, AST, ALT and AST/ALT, was significant (p < 0.05). The highest mean difference for ALT, AST and AST/ALT variables were, respectively, control and HBV/ESRD comorbidity groups; control and HCV/ESRD comorbidity groups; control and HBV infection groups. Moreover, it was found that the effect of the interactions between the three independent variables (group, age and gender) was not significant in all patient groups. Patients suffering from viral hepatitis and kidney failure disease will suffer from severe liver failure in an early time.

Keywords:AST, ALT, ESRD, HCV, HBV, MANOVA 

• Experimental and theoretical comparisons have been performed for natural convection heat transfer over rectangular fins array at different fin parameters. This investigation includes the effect of fin length, fin spacing, fin height, orientation angle, and temperature difference between the heat sink and the surrounding environment. To understand the general flow patterns dominating flows from the heat sink, the three dimensionless elliptic governing equations were solved using finite volume computational fluid dynamics (CFD) code, and the experimental work was carried for the system at different orientations. A new empirical correlation (modified of McAdam's correlation) was derived to correlate the mean Nusselt number as a function of the Rayleigh number. The average heat transfer coefficient has a maximum value at an orientation angle equal to zero degrees, and it decreases with an increasing orientation angle. The heat transfer rate per unit base area increases as fin spacing increase until it reaches a maximum value (6.5 mm), then it decreases with a further increase of fin spacing. The results of these investigations between the experimental and theoretical study were showing good agreements with similar international works.