Combining A Cryptography and Steganography Techniques – Based Securing Transmitted Video Through Unsecure Channel

أصبح الإنترنت من أهم الوسائل المستخدمة في نقل المعلومات عبر البريد الإلكتروني ووسائل التواصل الاجتماعي وغيرها. لقد أصبح من المهم حماية هذه المعلومات وإيجاد أفضل الطرق وأكثرها أمانًا لنقلها وحمايتها من محاولات القرصنة والهجمات الشائعة على الإنترنت. في هذا البحث ، يتم استخدام تقنيات التشفير وإخفاء المعلومات لتأمين الإرسال عبر شبكة غير آمنة. في هذا البحث ، اقترحنا طريقة لتشفير الصور باستخدام معادلات من الدرجة الثانية ، ثم يتم تضمين الصورة المشفرة في الفيديو. يتم تضمين الصورة وفقًا للمعادلات بدلاً من تضمينها بالتتابع لزيادة طبقة الأمان. أظهرت النتائج التجريبية أن الطريقة المقترحة تحقق قدرة تضمين عالية. بالإضافة إلى ذلك ، يزيد التشفير والاختيار غير المتسلسل للإطارات والمواقع لإخفاء البتات من سلامة ومتانة النظام المقترح عند مقارنته بالطرق الأخرى لإخفاء المعلومات.      The Internet has become one of the important means used to transfer information via e-mail, social media, and others. It has become important to protect this information and find the best and most secure way to transfer and it to protect it from piracy attempts and common attacks on the Internet. In this paper, the encryption and steganography techniques are used to secure a transmitted through unsecure network. In this paper, we proposed a method for encryption images using second-order equations, then the encrypted image is embedded in the vide. The image is embedded according to the equations rather than embedding it sequentially in order to increase the security layer. The experimental results suggest that the approach proposed is achieves a high embedding ability. In addition, encryption and non-sequential selection of frames and locations for bit hiding increases the safety and robustness of the proposed system when compared to other methods of hiding information

Evaluation of degradation kinetics for abamectin in formulations using a stability indicating method

The aim of this study was to evaluate stability characteristics and kinetics behavior of abamectin (ABM) as a 1 % (m/V) topical veterinary solution. During the study, samples stressed at 55 and 70 °C were regularly analyzed for several parameters over 8 weeks on a chromatographic (HPLC) system, using a Prodigy C18, 250 × 4.6 mm, 5 µm, column eluting with 15 : 34 : 51 (V/V/V) water/methanol/acetonitrile as mobile phase. The HPLC method was validated for precision, accuracy, linearity and specificity, and was found to be stability indicating. The result showed that degradation of ABM followed first-order kinetics and data on loss in assay rate kobs (s–1) and half life (t1/2, days) demonstrated ABM in glycerol formal showing the maximum stability. The degradation behavior of ABM varies from solvent to solvent. The effect of added alkali on pH change and loss in ABM assay was studied and found to be unique for all solvents and very distinct from typical hydrolysis degradation. The present study may serve as a platform to design and develop topical non-aqueous solutions of ABM for veterinary use given there no such comprehensive efforts has been published till date on stability profile of ABM in non-aqueous solvents

Design and Synthesis of Novel Derivatives of 4-(6-(4-Substituted Phenyl)-7H-[1,2,4] Triazolo[3,4-b][1,3,4]Thiadiazin-3- yl) Phenol as a Potent Inhibitor of Tubulin with Antitumor Activity

A new series of 4-(6-(4-substituted phenyl)-7H[1,2,4] triazolo[3,4b][1,3,4]thiadiazin-3-yl) phenol was synthesized and explored for anti-tubulin activity  using in silico and in vitro assay models. The starting nucleus, ethyl-4-hydroxybenzoate was treated with hydrazine hydrated, and converted to 4-hydroxybenzohydrazide (1). Then, (1) was stirred with CS2 and KOH in dry EtOH  to afford 2-(4-. hydroxyl benzoyl)hydrazine-1-carbodithioate, as a potassium salt (2). Compound (2) was used directly and refluxed with hydrazine hydrate to yield a parent nucleus, 4-(4-amino-5-mercapto-4H-1,2,4-triazol-3-yl)phenol (3). The target compounds (4-7), were synthesized by refluxing compound (3) with various substituted phenacyl bromides  using  sodium acetate as  a abase, The new compounds (3-7) were characterized using different spectroscopic analysis  techniques including IR, and 1HNMR.  The anticipated  modes  of binding to α- tubulin were also investigated by means of a molecular docking experiment. The binding mode revealed good agreement with the in vitro work with binding energies of (-38.77 and  -37.50 kcal/ mol) for the most potent compounds 7 and 4, respectively. The effect of synthetic novel compounds on cancer cell lines proliferation was screened  by MTT assay. The ability of the synthetic compounds to induce apoptosis process was tested using acridine orange/ ethidium  bromide staining. The synthetic novel compounds exhibited potent inhibitory effects on the growth and viability of cancer cell lines SKOV-3 and AMJ-13 cells. They inhibited  the proliferation and growth  of cancer cell lines at low concentrations, with IC50 values ranging from10.44 to 19.67 µg/mL against SKOV-3 cells, and for AMJ-13 cells,  the IC50 values were11.35 to 20.52 µg/mL. The effect of  the synthetic compounds on  the cell growth, and proliferation of cancer cell lines was associated with increased apoptosis.Our results demonstrated that the target compounds inhibited cancer cell lines proliferation, with a mechanism of action parallel to that of other tubulin inhibitor

Microsoft Word - 019-Hero Fatih Hamakareem

ABSTRACT: A study was undertaken to evaluate the performance of three chickpea varieties (Flip-1, Flip-2 and Flip-3). Field experiment was performed at research area of Faculty of Agricultural Sciences, University of Sulaimani, during spring season of 2014. Experiment was laid out in randomized complete block design (RCBD). There was a significant genotypic difference with respect to all studied characters except number of branches/plant and dry shoot weight. Chickpea variety Flip-2 showed best performance as it gave significantly higher total weight (8.84 g), dry shoot weight (1.52 g), dry root weight (0.91g), and weight of pods. The highest seed yield (3.86 g per plant) was recorded in Flip-2. The associations of different characters have been assessed. There was significant positive correlation of plant height with fresh shoot weight (r=0.75*) and fresh root weight (r=0.79*). On the others hand, the correlation between plant height and dry root weight was negative (r=-0.81*). The result showed a significant negative correlation of total weight with fresh shoot weight (r=-0.79*) and fresh root weight (r=-0.79*). There was significant positive relationship between dry shoot weight and weight of pods (r=0.67*). The maximum correlation was observed by fresh shoot weight and fresh root weight (r=0.99**)