JOURNAL OF MADENAT ALELEM COLLEGE

Morphological description and histological structure of olfactory organ in rabbit (Oryctolagus cuniculus) have been studied from specimens collected from local markets at Bagdad city. Results of the present study showed that the olfactory organ in rabbit consist of pair of nasal chamber which located inside the nose and situated above the upper lip. The nasal cavities opened to outside through the external nares which is appears as an oval shaped opening with fleshy end at the apex of rostrum ,while they are opened to the nasopharynx region through the internal nares which are located at the upper region of soft palate. The nasal cavities are separated by the nasal septum and there are many internal and three external chonchae in each cavity. The Results of the present study revealed that the nasal cavity in rabbit is lined by two types of epithelium which are represented by the olfactory (sensory) and respiratory (non sensory) epithelium .The respiratory epithelium lines the lateral wall of the nasal cavity and covers the surface of external chonchae. It contains ciliated and non-ciliated columnar cells in addition to the goblet cells. The microscopic examination revealed that the olfactory epithelium in rabbit is a pseudostratified columnar epithelium with three types of cells :(Basal, supporting and receptor cells).The olfactory epithelium covers the upper part of nasal cavity within the internal chonchae. The lamina properia contains blood vessels, fibers and branched tubulo-alveolar glands with duct lined by simple columnar epithelium. The present study revealed that in rabbit there is vomeronasal organ which represented an accessory olfactory organ.

There are three basic encryption methods: hashing, symmetric cryptography, and asymmetric cryptography. Each of these encryption methods has their own uses, advantages, and disadvantages. All the three of these encryption methods use cryptography or the science of scrambling data. Although there are several pieces to an encryption process, the two main pieces are the algorithms and the keys. Blowfish, a symmetric block cipher and a Feistel network which follows simple Enciphering and Deciphering functions of 16 times each. The strength of the Blowfish algorithm relies on its sub-key generation and its basic confusion and diffusion based design. The proposed method are generate key drawn from parts of the image and by the size of key used with Blowfish.

The wide spread looting of the Tuwaitha Nuclear Facilities as well as damaging of some buildings in 2003, had offered possibilities of contamination of soil environment inside the Site. The objective of the present work was to investigate soil contamination to help in future decontamination programs. A total of 25 soil surface samples (including one reference sample) covered different locations in the Site were collected in March 2011. High purity Ge detector was used for gamma spectrometry of soil samples. Data of total and spectral gamma for U series, Th series, 40K and 137Cs are presented. Slight variations were observed in specific activity of the U series (214Bi or 214Pb and 226Ra) among measured soil samples where the range was 10.3-12.7 for 214Bi as compared with 12.2-33.4 Bq/kg for 226Ra. Values of both 214Bi and 226Ra are in the range of reference sample specific activity indicating that no evidence of contamination had occurred in the investigated area. Results of activity concentrations of thorium series (228Ac or 208Tl, 212Pb, and 212Bi) are in the range of reference sample and close to those values given worldwide for natural uranium in soil. The levels of 40K in soil are within the natural abundance of this isotope in the soil where the range was 207.6-266.1 with 220.3 Bq/kg for the reference sample. On the other hand, 137Cs specific activities showed great variation among measured samples. The minimum value for 137Cs was 0.6 and the maximum 7.6 compared with 0.8 Bq/kg for the control soil sample. The non-uniformity of radioactivity concentration of 137Cs suggest the presence of contamination in some locations although this level is considered as an acceptable level and no hazardous effect will be generated

An experiment was conducted in botanical garden of the Department of biology, College of Education, Ibn Al-Haitham, University of Baghdad during winter season of 2010-2011. The aim of the present study is to investigate the effect of 20 and 40 ppm of Aspirin (Acetyl Salcylic acid) and also the extract of two concentration 5% and 10% of Eucalyptyus incrassta on growth and yield of Pea Pisum sativum L. The results showed that both treatments increased plant height, stem diameter, Crop Growth Rate (CGR), Leaves Growth Rate (RGR), Leaves Surface Area (LAR), Leaf Area Relative (LAR), Leaves Relative Growth Rate (LRGR), number of pods, seeds yield, average seed weight, biological yield, Harvest Index (HI), carbohydrate and protein percentages in seeds and Net Assimilation Rate (NAR), in comparison with the control plants.

Characteristic X-ray of 35KV (Mo-Tube) was used to determine the attenuation coefficients of x-ray for some of aluminum alloys with different thicknesses after oxidized them at different times and temperatures. By graphic figures and the phases formation on each sample's surfaces, we studied the effect of oxidation circumstance on absorption. The phases (θ- Al2O3) and (GeO2 ) were formatted on alloy A, (θ- Al2O3), (GeO2 ) and (AlGe0.0435) on alloy B, (MgO) and (Al2SiO5) on alloy C hence we found direct proportion between absorption logarithm with thickness and equivalent thickness for alloy C , while we got inverse proportions for alloys A and B which was due to the phases formation on their surfaces, we found absorption logarithm for alloy C increased with ratio 0.178% after 4 hours later comparing with the same sample at same circumstances after the first half hour. The relation between the half value thickness and mean free path with attenuation coefficients were determined also.

Compton profile of transition metal (β-Mn) was calculated employing the renormalized-free-atom (RFA) and free electron models, choosing 3d6-x-4s1-x configuration, whereas (x=0 to 1 step 0.1). This result was compared with experiment values. It is seen that the RFA calculation in 3d64s1 gives a better agreement with the experiment. This theoretical Compton profile data have been used to compute the cohesive energy of Manganese for the first time and compared it with available data.

The concept of wideband coded modulation has been in existence for many years. It was predominately utilized in many applications due to its inherent resistance to noise, including jamming and low probability of intercept. For this reason, it was the communication method of choice in various situations. The TTCM has been shown to be more efficient than TCM for transmissions over AWGN channels and narrowband fading channels. The multi-path channel model is characterized by its discretized symbol-spaced COST207 Typical Urban (TU) channel impulse response. The Rayleigh multipath channel is also discretized. Therefore, OTHMA can be applied as a multiple access scheme for low power, large scale, and low activity networks in UWB impulse radio communications. The performance of TTCM Burst-by-Burst Adaptive Wideband Coded Modulation system is tested in a Semi-realistic channel model that is based on an extensive set of outdoor channel measurements. Through semi-analytical evaluations of the bit error probability, we show that the TTCM Burst-by-Burst Adaptive Wideband Coded Modulation system is almost has good BER performance. Also, a comparison between the BER performances of many channels has been done

This paper proposes a novel technology for image Cryptography, steganography system and embedded high capacity data at the same time. The proposed technologic first encrypted the information by using Zigzag Order Block Permutation (ZOBP), which divides the image into sub-block of size (8*8), then permutated the Blocks depend on Cipher Key. The permutation blocks pixels by zigzag order. The Encrypted information has been converted by Discrete Wavelet Transform (DWT) series of bits in order to increase the power coefficients. The secret information bits embedded into Binary of the cover image after converted by Multi-level DWT. The secret bits replace by bits in cover coefficients. The image results after Inverse Discrete Wavelet Transformation (IDWT) called stego-image. This embedded information casing statistically significant modification to the cover image. The simulation results calculate Peak Signal to Noise Ratio (PSNR), and Correlation test (Cor) as parameters of robustness, and quality of reconstruct image. The proposed system hides high capacity of data depends on the level of DWT to cover image that hiding Capacity parameter calculated by Bit per Pixel (BPP). The proposed method hidden high capacity information with most security and quilility system.
Keywords: Imgesteganography, Image Cryptography, Multi-level Discrete wavelet Transform, Zigzag order Block Permutation (ZOBP), Peak Signal to Noise Ratio (PSNR), Correlation test (Cor.), Bit per pixel (Bpp).

In this paper, we studied viscous non –Newtonian fluid of third order flowing in a helical pipe with circular cross-section under action of the pressure gradient. Particular consideration is given to fluid flow which can be represented by the equation of state of the form:
T=〖μA_1+α〗_1 A_2+α_2 〖A_1〗^2+β_1 A_3+β_2 (A_1 A_2+A_2 A_1 )+β_3 (tr〖A_1〗^2 ) A_1.
where α_i (i=1,2),β_i (i=1,2,3) are material moduli and〖 A〗_i(i =1-3) are the first three Rivlin-Ericksen tenser. The cylindrical coordinates have been used to describe the fluid motion. It is found that motion equations are controlled by the dimensionless numbers namely Dean number L, non-Newtonian parameter β, and material moduli (γ_1,γ_3). The motion equations are solved analytically. The analytic solutions of the secondary velocity and the axial velocity are obtained. The effects of each of the dimensionless numbers upon the components of the secondary and the axial velocity are analyzed.

Educational Virtual Reality (VR) is an improved multimedia tool that creates a computer simulation learning environment which is very close to reality. It is realized a sufficient improvement level in several applications, such as education, research, and training. The implementation of virtual reality offers numerous educational benefits which leads to use it for more than the traditional instructions. But, the main limitation of using this technology is the cost. In this paper, the main concepts, bases, approaches, requirements, and components that are essential to create an educational virtual reality program and its main strength and weakness points are explored. In addition, the design making process of the virtual reality program and the use of fuzzy logic in the building of educational virtual reality program are described.

The activity of ADA was evaluated in the serum of (40) individuals (15 patients with cataract, 15 patients with glaucoma and 10 individuals as a control). The results showed significant reduction in ADA activity value in individuals with cataract and glaucoma comparing with control (147.86±2.4 Iu/mg), (164.06±2.5 Iu/mg) and (211.29±7.4 Iu/mg) respectively also there is a significant reduction in ADA activity value in individuals with cataract (147.86 ± 2.4) Iu/mg comparing with those with glaucoma (164.06 ± 2.5) Iu/mg that refer the effect of cataract on ADA activity is more than the glaucoma .

The effects of (Najanaja) snake cobra venom on some liver enzymes in albino male rats have been investigated. The effects of a single sublethal dose of Najanaja snake venom (0.04μg/g) body weight on the activities of certain serum enzymes levels: aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALP) were studied. Samples from the serum were collected 3 and 24 h following venom dose intraperitonealy injected in male albino rats. The activities of these enzymes showed significant elevation compared to the control. Najanaja snake venom caused damage and hepatic dysfunction in enevomated male rats.