The object of the present paper is to introduce a new subclass of p-valent starlike functions with negative coefficients in the open unit disc which is defiined by a generalized derivative operator. We obtain coefficient inequalities, growth and distortion theorems and extreme points for the subclass of p-valent functions.

Recent developments in both information and communication security have heightened interest in enhancing the embedding capacity for data handling techniques. Although many steganographic techniques, in the literature, have been developed for this purpose, most of them distort the quality of the host-signal during data embedding and the changes will be become visible to the human eye especially for those signals distributed via the Internet which must be processed by a low bit rate compression due to bandwidth limitations. Therefore, the challenge is to create a steganographic technique that is able to hide acceptable amount of data without altering the quality of the host-signal. In this paper, pixel-value differencing (PVD) steganographic scheme and its two modified versions, namely, enhanced pixel-value differencing (EPVD) and tri-way pixel-value differencing (TPVD) were implemented, analyzed and compared in terms of invisibility, fidelity and impact of data hiding on the compression efficiency. Experimental results indicate that the EPVD scheme is capable of providing better performance than other compared schemes.

Abstract: Hypertension is a challenge for public health professionals all-over the world. It is the leading and most important modifiable risk factor for coronary heart disease, congestive heart failure, stroke, renal diseases, retinopathy and many other diseases. The aim of the present study is to evaluate and study the most identifiable risk factors for patients with diseases of hypertension and diabetes mellitus such as age, gender, marital status, tobacco smoking, life style and with associated diseases (dyslipidemia and diabetes) treated at city hospital in Tripoli (Tripoli Medical Centre). This was a cross sectional prospective study which was carried out during October 2013 and January 2014. The study included 200 consecutive patients (102 females and 98 males) who are older than 30 years and who came for a regular follow up at the OPD of Tripoli medical centre. During this study, variables like age, gender, diabetes, smoking and dyslipidemia were taken into account in relation to hypertension. In addition, it is assorted some important biochemical parameters such as total cholesterol, triglycerides, low density lipoprotein, high density lipoprotein and fasting blood glucose in the studied population and compared them with available data. The findings revealed that Libyan population not only old age and male gender are potential threat for an early hypertensive but other variables like diabetes, cardiovascular diseases, dyslipidemia, obesity, migraine and obstructive apnea are also playing an important role in hypertension complications. It is concluded that this population is more prone to hyperglycemia and high pulse pressure with hypertension in the majority of survey population

Abstract Mel Frequency Cepstral Coefficients (MFCCs) are the most widely used features in the majority of the speaker and speech recognition applications. Since 1980s, remarkable efforts have been undertaken for the development of these features. Issues such as use suitable spectral estimation methods, design of effective filter banks, and the number of chosen features all play an important role in the performance and robustness of the speech recognition systems. This paper provides an overview of MFCC's enhancement techniques that are applied in speech recognition systems. The details such as accuracy, types of environments, the nature of data, and the number of features are investigated and summarized in the table combined with the corresponding key references. Benefits and drawbacks of these MFCC's enhancement techniques have been discussed. This study will hopefully contribute to raising …

Abstract: Objective: The present study has been designed to evaluate the histological effects of the daily consumption of omega-3 on submandibular salivary gland of old rats. Material & methods: Forty old white male rats (12-15 month age old), weighing 300 to 350gs, were used in this study. The rats were divided into two groups (20 rats/each). Control group where rats did not receive any dietary supplement. Experimental group where rats received omega-3 (60 mg/Kg) twice daily for three months through intra- gastric intubation. All rats were sacrificed after three months. Soft tissue specimens were obtained from submandibular salivary gland of the rats in all the studied groups. The sections were examined histologically and ultra-structurally. Results: Histopathological changes observed in control group included; distortion and decrease in the overall size of the acini and granular convoluted tubules increase in the amount of fatty tissue, fibrous tissue and inflammatory cell infiltration. In experimental group, the acini and ducts appeared nearly normal and there was marked decrease in the inflammatory cell infiltration. Electron microscopic examination of the control group revealed cytoplasmic vacuolization in acini and ducts, degenerated organelles and pyknotic nuclei. In experimental group, the acini and ducts appeared nearly normal in size, shape and structure. Conclusion: Omega-3 showed significant improvement in many age related changes of submandibular salivary gland.الملخص: الهدف: صممت الدراسة الحالية لتقييم التأثيرات النسيجية لليوم استهلاك أوميغا 3 على الغدد اللعابية تحت الفك السفلي للفئران القديمة. المواد والطرق: أربعون ذكرا أبيض يبلغ من العمر تم استخدام الفئران (12-15 شهرا) ، التي تزن 300 إلى 350 جراما ، في هذه الدراسة. تم تقسيم الفئران إلى مجموعتين (20 جرأ / لكل منهما). المجموعة الضابطة حيث لم تتلق الفئران أي مكمل غذائي. المجموعة التجريبية حيث الفئران تلقى أوميغا 3 (60 مجم / كجم) مرتين يوميا لمدة ثلاثة أشهر من خلال التنبيب داخل المعدة. تم التضحية بجميع الفئران بعد ثلاثة أشهر. تم الحصول على عينات الأنسجة الرخوة من الغدة اللعابية تحت الفك السفلي للفئران في جميع المجموعات المدروسة. تم فحص الأقسام من الناحية النسيجية والهيكلية الفائقة. النتائج: نسيجية مرضية وشملت التغييرات التي لوحظت في المجموعة الضابطة; تشويه وانخفاض في الحجم الكلي للأسيني والحبيبات تزداد الأنابيب الملتوية في كمية الأنسجة الدهنية والأنسجة الليفية وتسلل الخلايا الالتهابية. في المجموعة التجريبية ، بدت الأسيني والقنوات طبيعية تقريبا وكان هناك انخفاض ملحوظ في الالتهابات تسلل الخلايا. كشف الفحص المجهري الإلكتروني للمجموعة الضابطة عن تفريغ السيتوبلازمي في أسيني والقنوات والعضيات المتدهورة والنوى pyknotic. في المجموعة التجريبية ، ظهرت الأسيني والقنوات تقريبا طبيعي في الحجم والشكل والهيكل. الخلاصة: أظهرت أوميغا 3 تحسنا كبيرا في العديد من الأمراض المرتبطة بالعمر تغيرات الغدة اللعابية تحت الفك السفلي.

Abstract— Diagnosing skin cancer in its early stages is a challenging task for dermatologists given the fact that the chance for a patient’s survival is higher and hence the process of analyzing skin images and making decisions should be time efficient. Therefore, diagnosing the disease using automated and computerized systems has nowadays become essential. This paper proposes an efficient system for skin cancer detection on dermoscopic images. It has been shown that the statistical characteristics of the pigment network, extracted from the dermoscopic image, could be used as efficient discriminating features for cancer detection. The proposed system has been assessed on a dataset of 200 dermoscopic images of the ‘Hospital Pedro Hispano’ [1] and the results of cross-validation have shown high detection accuracy.

The aim of this paper is to introduce and study a new class of Bazilevič p-valent function of order β by using the subordination concept between this function and a generalized derivative operator. Some interesting properties are also obtained