Background: Tympanometry findings are considered by many investigators to be associated with passive and active smoking.
Patients and methods: One hundred forty healthy adult men aged (20-50 years). 70 smokers and 70 nonsmokers were recruited for the study. The examination included otoscopy, and screening tympanometry. Smoking history was ascertained by self –report. For each subject, age, smoking status and number of cigarettes per day were noted.
Results: There is a tendency for more negative middle ear pressure in smokers than in non-smokers though this difference may not clinically significant. There were no significant differences in ear canal volume, middle ear compliance and presence of Staped

Background: prednisolone is a corticosteroid with a very bitter taste acts as anti- anti-inflammatory and immune suppressant drug and it is used at any age.

Objective: To improve patient compliance by masking the bitter taste of the drug to be delivered as an orodispersible tablet.

Methods: External ionic gelation using sodium alginate (0.5%w/v) and calcium chloride (1% w/v) in presence of 0.5% w/v carbopol 940 was used to prepare taste masked beads loaded with prednisolone to be compressed as orodispersible tablets.  

Results:  The bitter taste of was masked by preparing beads composed of 1:1:1 (sodium alginate: Carbopol 940: prednisolone) which r

Routing protocols are responsible for providing reliable communication between the source and destination nodes. The performance of these protocols in the ad hoc network family is influenced by several factors such as mobility model, traffic load, transmission range, and the number of mobile nodes which represents a great issue. Several simulation studies have explored routing protocol with performance parameters, but few relate to various protocols concerning routing and Quality of Service (QoS) metrics. This paper presents a simulation-based comparison of proactive, reactive, and multipath routing protocols in mobile ad hoc networks (MANETs). Specifically, the performance of AODV, DSDV, and AOMDV protocols are evaluated and analyz

In this paper, thirty six samples of canned vegetables were collected randomly from
different markets in Baghdad city from October 2013 till March 2014. The study
includes identifying the concentration of some heavy metals (lead, nickel, zinc and iron)
by flameless atomic absorption spectrophotometery. It was found that the higher
concentrations of heavy metals in canned vegetables, was lead 1.179 ppm in olive,
nickel 0.9078 ppm in olive, while zinc 10.143 ppm green peas and iron 90.601ppm in
white asparagus; but the lower concentrations represents with lead 0.0021 ppm in green
asparagus, nickel 0.0202 ppm in mushroom, while zinc 0.528 ppm in white asparagus
and iron 4.061 ppm in green peas. Canned food has been r

Purpose: To validate a UV-visible spectrophotometric technique for evaluating niclosamide (NIC) concentration in different media across various values of pH. Methods: NIC was investigated using a UV-visible spectrophotometer in acidic buffer solution (ABS) of pH 1.2, deionized water (DW), and phosphate buffer solution (PBS), pH 7.4. The characterization of NIC was done with differential scanning calorimeter (DSC), powder X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The UV analysis was validated for accuracy, precision, linearity, and robustness. Results: The DSC spectra showed a single endothermic peak at 228.43 °C (corresponding to the melting point of NIC), while XRD and FTIR analysis confirmed the identit

    The effect of local Lactobacillus gasseri filtrate against Pseudomonas aeruginosa infection in mice was studied . 0.25 ml of concentrated filtrate Lactobacillus gasseri was injected in intraperitoneally ( I.P.) 5 days before challenge with 0.2 ml  viable  P. aeruginosa ( 10 8  cell/ ml).       Animals were sacrificed after 12 h. from challenge by cutting the femoral artery . To follow bacterial growth in the peritoneal cavity , its contents were washed out with 5 ml of  PBS .The fluid was diluted, 0.1 ml from each dilution and was spread on culture media. The number of colonies in 5 ml of harvested fluid was expressed as Log 10 CFU ,and the percentage of Macrophage in t

A number of pulsed experiments have been carried out using a high-voltage circuit containing R,L, and C in certain arrangements. A spherical spark gap of steel electrodes was used as a high-current switch operated by a voltage of up to 8kV and triggered in both self-triggering and third-electrode triggering modes. Current measurements were carried out by using both current-viewing resistor and Rogowski coils designed for this purpose. Typical current waveforms have shown obvious dominating inductance effect of the circuit components in an underdamped oscillation. The behavior of the circuit impedance was studied by recording both pulsed current peaks and the charging voltages when currents of up to 2.5kA were recorded. The dur

The aim of this research is to shed some light on the level of

serum total sialic acid (TSA) in individuals with typhoid fever. The individuals were at age of (35-45) years old and (TSA) was measured by resorcinol reagents. The results showed significant reduction in (TSA) compared to control or normal individuals.

Baker’s yeast (Saccharomyces cerevisiae) has been genetically engineered to
ferment the pentose sugar xylose present in lignocellulosic biomass. One of the
reactions controlling the rate of xylose utilization is catalyzed by xylose reductase
(XR).The current study describes xylose reductase from Spathasporapassalidarum
with NADH preference. According to JGI site the gene coding for this enzyme
contains 954 nucleotides and it consists of 317 amino acids. The restriction sites for
the enzymes SacII and NotI located on the 5P
´
Ptermini for both the forward and
reverse specific primers were designed using Lasergen 9.0 program. The genomic
DNA was isolated and purified from S .passalidarum. Polymerase chain r