نقدم من خلال هذا المشروع دراسة عملية عن خدمات البث عبر الشبكة نحاكي من خلالها البث الإذاعي عبر الإنترنت ونتعرف على هذه الخدمة ضمن بيئة Shoutcast Server و تحليل أدائها عبر Wireshark و من ثم إجراء دراسة تقريبية لاستهلاك الطاقة ضمن الهواتف الذكية
و بعض الحلول المتبعة للتخفيف من هذه المشكلة .
انطلاقاً من التعرف على مفهوم Streaming و أنواع البروتوكولات المستخدمة في هذه العملية و من ثم كيفية تحقيقها عن طريق Shoutcast server و مشغل الموسيقا Winamp وذلك بعد التعرف بشكل نظري مفصل على الـ Shoutcast server ,انتهاءاً باستقبال الخدمة عبر أجهزة استقبال(Mobiles ) .
عن طريق برنامج Wireshark نقوم بتحليل بروتوكول الخدمة السابقة وماهي أية عمله وما هو شكل البيانات التي يتعامل معها و من ثم تحليل أداء الخدمة وفق نماذج متعددة تشمل عدة حالات ( مستقبل واحد أو عدة مستقبلين ) مع تحديد قيم بارامترات التأخير والإنتاجية وغيرها من بارامترات جودة الخدمة .
في القسم الأخير نقدم دراسة لمفهوم حفظ الطاقة ضمن البيئة المستخدمة من أجل الإضاءة على هذه المشكلة التي تعتبر تحدياً كبيراً أمام الهواتف الذكية عند استعراض Video أو Audio عبر الشبكات اللاسلكية مع تقديم بعض الاستراتيجيات التي تساهم في الحد من استهلاك الطاقة من قبل بطاريات الهواتف الذكية .
تجدر الإشارة أن جميع القياسات تمّت ضمن بيئة شبكة حقيقية ( كما سنرى لاحقاً ) وليست عبر برامج محاكاة ، حيث فضلنا اتباع طريقة Measurement في تحليل الخدمة وذلك من أجل تقديم نتائج دقيقة و حقيقية قدر الإمكان .
Gestational Diabetes Mellitus (GDM) is one of the most common complications
during pregnancy. The prevalence of gestational diabetes (GDM) is increasing all over the
world. Hence, the impact of GDM on maternal and infant health is an important topi
c of
research.
Objective:
The aim of the study was to determine the prevalence of GDM, and to assess the
impact of universal screening to detect Gestational diabetes mellitus.
Subjects and methods:
A representative sample of 760 pregnant women who attended the antenatal
department of Al Assad Hospital in Lattakia were surveyed during the period from June
1st, 2013 to December 1st, 2014. The questionnaire covered variables related maternal age,
gestational age, BMI, and women underwent the diagnostic tests for GDM. 73 pregnant
women had positive results.
Background: Diabetes mellitus type2 (T2DM) and thyroid dysfunction (TD) are the
two most common endocrine disorders in clinical practice. The unrecognized TD may
adversely affect the metabolic control and add more risk to an already predisposing
s
cenario for cardiovascular diseases. The objective of this study was to investigate the
prevalence of TD in patients with type2 diabetes mellitus.
Objective: To determine the prevalence and patterns of thyroid dysfunction in
patients with type2 diabetes mellitus.
Material and methods: Study included total 362 subjects (204 type2 diabetic patients
and 158 healthy non diabetic subjects). Agroup of type2 diabetic patients and control group
were evaluated for thyroid dysfunction by testing TSH and FT4 when TSH was abnormal.
The correlation of prevalence of thyroid disorder with gender distribution, age distribution,
duration of diabetes, BMI, treatment, fasting plasma glucose (FPG), serum triglyceride and
serum cholesterol was then done in diabetic patients. The observations and interpretations
were recorded and results obtained were statistically analyzed.
Results: The prevalence of thyroid dysfunction among type2 diabetic patients was
found to be 13,2%. In the control group, the prevalence of thyroid dysfunction was 6,3%.
There was a significant difference between diabetics and control subjects p= 0,031.The
most frequently TD in type2 diabetic patients was subclinical hypothyroidism (8,3%).
Thyroid dysfunction was significantly correlated with gender (women > man), age < 60
years, FPG > 130mg/dl, TG > 150mg/dl and insulin treatment in type2 diabetic patients.
Conclusion: Screening of thyroid dysfunction shoud be done in all Type2 diabetic
patients.
Background: Diabetes mellitus is a leading public health problem with increasing
incidence and long term complications. These complications are mainly a consequence of
macro-vascular and microvascular damages of the target organs. The incidence of
several
pulmonary abnormalities during the course of Diabetes Mellitus because the presence of
an extensive microvascular circulation and abundant connective tissue in the lungs , raises
the possibility that lung tissue may be a target organ in diabetic patients.
Objectives: This research is designed to study the impact of DM and both the
duration of the disease and the glycemic control on pulmonary function tests.
Methodology: This is a cross-sectional study carried out on 75 patients with type II
diabetes mellitus patients at Tishreen University Hospital in the period between October
2015 and October 2016 .We compared with a control group consisted of 75 non diabetic
healthy persons . Measurement of HbA1C , fasting plasma glucose
(FPG) , and spirometry were made to all subjects and the following pulmonary function
parameters were recorded: Forced Expiratory Volume in the first second (FEV1), Forced
Vital Capacity (FVC), and Forced Expiratory Volume percent (FEV1/ FVC%) . Results
were analyzed by calculating Mean ± SD, using X2 test , Karl Pearson correlation and
ANOVA test.
Results: The mean FEV1, FVC, FEV1/FVC% values were low in diabetics (p value
<0.05) compared to healthy non-diabetics (control group). Also, uncontrolled diabetics
show a greater decrease in these values than controlled diabetics. There was a greater
decrease in these values in patients with long period of disease .
Conclusion: The findings of the present study suggest that, the lung is a target organ
for damage in DM and diabetics show a decrease in PFTs with a restrictive pattern lesion
compared with non-diabetics . And this deterioration is exaggerated in uncontrolled
diabetics and with the long duration of DM .
Introduction : The main role of fine needle aspiration cytology (FNAC) lies in the
differentiating between a malignant and benign thyroid nodule. It greatly influences the
treatment decision.
Aim : This study aimed to evaluate the accuracy of fine
needle aspiration cytology
(FNAC) in the diagnosis of thyroid nodules by evaluating the cytology–histopathology
correlation .
Materials and Methods : This is a prospective study of 49 diagnosed cases of thyroid
nodules who underwent FNAC and histological study of surgical biopsies for diagnosis at
Tishreen University Hospital , during the period between march 2017 – march 2018 .The
results were categorized according to Betheseda classification into:
insufficient for diagnosis, benign, follicular lesion of undetermined significance, follicular
neoplasm, suspicious for malignancy, and malignant sampling. The final histologic
diagnosis was considered the gold standard.
Results : The study included 49 cases presented with thyroid nodules who underwent
diagnostic thyroid FNAC. Female to male ratio was 7.2:1, and the mean age was 43.6
years.
Thirty –nine cases (79.6%) were diagnosed as benign, 3 cases (6.1%) as unsatisfactory , 2
cases (4.1%) as follicular neoplasm, 2 cases (4.1%) as suspicious for malignancy, 2 cases
(4.1%) as malignant, and 1 case (2%) as follicular lesion of undetermined significance.
Nodular goitre represented the majority of benign cases (62.8%), while papillary
carcinoma was the most frequent malignant lesion (83.3%).
Cytologic diagnoses were compared with their corresponding final histologic ones. FNAC
achieved a sensitivity of 83.3%, a specificity of 97.4%, a positive predictive value of
83.3%, a negative predictive value of 97.4%, a false positive rate of 2.5% , a false negative
rate of 16.6% , and a total accuracy of 95.5%.
Conclusion : FNA cytology is a sensitive, specific, and accurate initial diagnostic test for
the evaluation of patients with thyroid nodules.
