Al-Mustansiriyah Journal of Science

Analysis of the jet stream is diagnostic over Baghdad for period studies 2012 to 2014 using Radiosonde data and synoptic charts. The source of data is the Iraq Meteorological Organization and Seismology (IMOS). The most frequent occurrences of a jet stream are in April and July at 500 hPa equal to 13 times, at 300 hPa the highest frequency of the jet stream is in May equal to 14 times. This study showed that the incidence of jet streams became fluctuating, increasing and decreasing, as the least occurrences were in 2012 and gradually increased in 2014, when the highest incidence of jet streams was recorded in 2014. The most prominent results of the current jet current determination used by the synoptic maps through the fulfillment of all conditions or the fulfillment of part of the conditions. In the event that all conditions are met due to the expansion of the Hadley cell when it hits the middle condition. The results were produced if some conditions were met and in most study cases that the jet stream formed over Europe and continues to move until it reaches the Mediterranean Sea, then there will be a crossroads either over Turkey and it will be strong and in the case of growth or heading towards Iraq, in this case, it will be weak and in Decay condition.

This study aimed to extract urease enzyme from available plant source which was broad beans (Vicia faba L.)using aqueous solution in a ratio1:3(w:v) .The crude extract appeared enzyme activity33.3 U/ml. Results of this study revealed the possibility to precipitate urease enzyme after extraction using different precipitation methods consisted of Acetone precipitation; Alcohol precipitation and Ammonium sulfate precipitation, these ways of urease precipitation gave enzyme activities 74.8; 43.6 and 82.2 U/mlrespectively .The enzyme precipitation using 60% saturation ratio of Ammonium sulfate gave the maximum activity of urease precipitation among other precipitation methods. Enzyme characterization appeared the optimum pH of urease activity was 8.0 and gave enzyme activity 93.8U/ml, while the optimum pH of urease stability was 6.0; the enzyme maintains its activity. On the other side the optimum temperature of precipitated urease activity was 50°C and the enzyme activity reached 99.3U/ml while the optimal temperature of urease stability was 40°C,the precipitated urease maintains100% of activity. The effect of other factors on urease action were studied also, these are consisted of the storage time of enzyme ,urease maintain its activity for 8days and the activity begun to decline after that time; the effect of time reusability was also revealed that the enzyme could be used for six times and maintain its activity. The influence of different mineral salts on precipitated urease were also recorded;these salts were CuSO4, MgSO4, MgCl2,KCl,CaCl2and FeSo4, results appeared that magnesium and calcium salts were activator for the precipitated urease while copper ,potassium and ferrous salts were inhibitor of the precipitated urease. Urea concentration as an enzyme substrate were also examined and results appeared the optimal substrate concentration was 30mM; enzyme activity reached to125.2U/ml

This study was conducted in the botanical garden, Department of biology, College of Science/ Mustansiriyah University in from (15 February to 15 March, 2019) under the natural environmental conditions in the greenhouse in order to evaluate the effectiveness of parsley aqueous extract as a promoter for rooting.The study included the use of aqueous extract of a plant Parsley (Petroselinum crispum) extractwas used in concentrations (1.25, 2.5 g / l),compare with IBA in concentration (100 mg / L) with dipping time 24 hour for all treatments.The cutting stems were included Rosmarinus officinalis, Nerium oleander, Olea europaea,Plumeria alba, Hibiscus rosa, Pelargonium graveolens, and Myrtus communis. The following measurements were taken after 30 days from the beginning ofthe experiment: rooting percentage, (number and length of roots), number of new (leaves and branches). Plant hormone concentrations, oxidative enzyme activity (SOD, POS) and amino acids were also analyzed for the extract that gave the highest values for all traits. The results showed that there were significant differences between treatments, and indicated that parsley extract in the concentration (2.5 g / L) was more exceededcompared with other treatments. The chemical analysis of parsley extract showed the presence of the hormones IAA, GA3, cytokinin and ABA as well as the highest activity of the antioxidant enzymes (POS and SOD), also the analysis of parsley indicated the presence of several types of amino acids, including Tryptophan, Glutamic acid, alanine, valine, Tyrosine, Phenylalanine Histadine, Ornithine, Arginine and other amino acids.In conclusion, the Parsley extract can be used as promoter rooting for stem cuttings as a new method instead of using plant growth regulators, Replace the IBA which used in the rooting of stem cuttingsby some natural extracts which can stimulate the rootingproces

In this research a number of pyrrolidine-2-one derivatives were prepared by lactamization of γ –butyrolactone(GBL) with hydrazine hydrate (80%) to produce (1-aminopyrrolidine-2-one) that undergoes several reactions to afford these derivatives that diagnosed by infrared, nuclear magnetic resonance and mass spectroscopy. Antibacterial activity has also been studied using some types of bacteria, some were found to havegood antibacterial activity.

Securing information has been the most significant process for communication and data store. Orderly to secure information such as data authentication, data integrity, and confidentiality must be verified based on algorithms of cryptography. Where, the most important part of any encryption algorithms is the key which specifies if the system is strong enough or not. The proposal of this paper is a new method to generate keys based on two kinds of chaos theory in order to improve the security of cryptographic algorithms. The base of this proposal is to investigate a new method for generating random numbers by using the 3D Lorenz system and 2DHenon map. The newly generated keys have successfully passed the National Institute of Standards and Technology (NIST) statistical test suite

Today the technology age is characterized by spreading of digital images. The most common form of transfer the information in magazines, newspapers, scientific journals and all types of social media. This huge use of images technology has been accompanied by an evolution in editing tools of image processing which make modifying and editing an image is very simple. Nowadays, the circulation of such forgery images, which distort the truth, has become common, intentionally or unintentionally. Nowadays many methods of copy-move forgery detection which is one of the most important and popular method of image forgery are available. Most of these methods suffer from the problem of producing false matches as false positives in flat regions. This paper presents an algorithm of the Copy-Move forgery detection using SIFT algorithm with effective method to remove the false positives by rejecting all key-points in matches list that own a neighbor less than the threshold. The accuracy of theproposed algorithm was 95 %. The experimental results refer that the proposed method of false positives removing can remove false matches accurately and quickly

Due to the rapid evaluation in the field of communications and multimedia and the increasing use of the Internet, multimedia data security has become very urgent. of the best alternative way to achieve multimedia data security is encryption, which preventsunauthorized entities from accessing confidential data. In recent years, the chaotic system of image encryption becomes an efficient way to encrypt images due to its high security. It has certain special properties like sensitivity to initial conditions, and control parameters, pseudorandom, ergodicity, and non-convergence etc. chaotic dynamics systems became as a promising alternative to traditional encryption algorithms. This paper presents a new algorithm for the image encryption/decryption scheme depended on a novel six-dimensional hyper-chaotic system to achieve High level of security, the chaotic sequence generated from system employ for permutation and diffusion the original image to create an encrypted image. The performance ofthe algorithm has been analyzed through analyzes statistical suchasHistogramAnalysis,CorrelationCoefficientAnalysis,InformationEntropy Analysis, Key Space Analysis, Key Sensitivity Analysis, Number of Pixels Change Rate (NPCR), Unified Average Changing Intensity (UACI), Peak Signal to Noise Ratio, The experimental results show that the algorithm has good encryption performance, large key space equals to 10168and the high sensitivityforsmallchangesinsecret keywhich makesthealgorithmimmuneto Bruteforceattacks,anditcanresistthestatisticalattacks, therefore,the presentedencryptionalgorithm depends on a novel hyper chaotic system is more secure against the statistical and differential attack

The purpose of this paper is to introduced a newconceptof spaceswhich is called minimal ????(????????)-space, namely ℳin????(????????)-space or ℳ????(????????)-space, also given some properties, examples, theorems and the topological property ofℳin????(????????)-spaceare discussed

The nuclear structure for even-even nuclei Yb7016494estimated by using interacting boson model (IBM-1). Also this program was used to determine energy levels of g-state, energy ratios and electric quadrupole transitionsprobability B(E2) which have been calculated. Depending on the follow up of energy ground bands(g, β, and γ).The dynamical symmetry and energy spectrum of selected isotope are determined by B(E2). The electric quadrupole transition probability of the (2ᶢ+-0ᶢ+) transitions for Yb (A=164) isotopes with the dynamical symmetry SU(3)-SU(5) from rotational SU(3) to vibrational SU(5). All obtained results of the study were compared with experimental facts and acceptable agreement obtained.