A New Protection for Android Applications

Today, Smartphones are very powerful, and many of its applications use wireless multimedia communications. Prevention from the external dangers (threats) has become a big concern for the experts these days. Android security has become a very important issue because of the free application it provides and the feature which make it very easy for anyone to develop and published it on Play store. Some work has already been done on the android security model, including several analyses of the model and frameworks aimed at enforcing security standards. In this article, we introduce a tool called PermisSecure that is able to perform both static and dynamic analysis on Android programs to automatically detect suspicious applications that request unnecessary or dangerous permissions

Blockchain & Multi-Agent System: A New Promising Approach for Cloud Data Integrity Auditing with Deduplication

Recently, data storage represents one of the most important services in Cloud Computing. The cloud provider should ensure two major requirements which are data integrity and storage efficiency. Blockchain data structure and the efficient data deduplication represent possible solutions to address these exigencies. Several approaches have been proposed, some of them implement deduplication in Cloud server side, which involves a lot of computation to eliminate the redundant data and it becomes more and more complex. Therefore, this paper proposed an efficient, reliable and secure approach, in which the authors propose a Multi-Agent System in order to manipulate deduplication technique that permits to reduce data volumes thereby reduce storage overhead. On the other side, the loss of physical control over data introduces security challenges such as data loss, data tampering and data modification. To solve similar problems, the authors also propose Blockchain as a database for storing metadata of client files. This database serves as logging database that ensures data integrity auditing function

تطبیقات المناسب المرسل في تكییف عقد التأمین التعاوني كنموذج تطبیقي معاصر للتحول نحو الاقتصاد الإسلامي

Makaleيهدف هذا البحث إلى بيان تطبيقات المناسب المرسل كدليل من أدلة أصول الفقه في تكييف الحكم الشرعي; لعقد التأمين التعاوني كبديل شرعي عن التأمين التجاري الربوي. الاحتجاج بدليل اشتمل البحث على بيان مفهوم المناسب المرسل لغ ً ة واصطلا ً حا, وآراء علماء أصول الفقه في مدى المناسب المرسل, وكذلك الحديث عن أبرز تطبيقات المناسب المرسل في الواقع المعاصر, وبيان مفهوم عقد التأمين التعاوني لغ ً ة وشر ً عا, وتحرير محل النزاع من خلال بيان آراء الفقهاء في تكييف التأمين التعاوني, والضوابط التي وضعها الفقهاء; لكي يكون عقد التأمين التعاوني ضمن دائرة الحلال, وكذلك تحقيق قول الأصوليين في إيضاح أن: دليل المناسب المرسل دليل معتبر عند علماء أصول الفقه, وقادر على استيعاب ومعالجة المسائل المعاصرة, ومن ضمنها: عقد التأمين التعاوني الذي بات المجتمع يحتاج إليه. ثم خاتمة بأهم النتائج التي توصلنا إليهاBu araştırma, fıkıh usulü delillerinden olan münasib-i mürselin, yardımlaşma sgortasının hükmünü belirleme konusundaki uygulamalarını ortaya koymayı hedeflemektedir. Yardımlaşma sigortaları, faizli ticari sigortaların şer’i alternatifi konumundadır. Araştırma, münasib-i mürselin sözlük ve ıstılahi anlamalarını, fıkıh usulcülerinin bu delille istidlale dair görüşlerini, günümüzde münasib-i mürselin kullanıldığı alanları ihtiva etmektedir. Yine yardımlaşma sigortasının sözlük ve ıstılahi anlamını, konuyla ilgili fukahanın ihtilaf sebeplerini ve bu konuda konulan prensipleri, münasib-i mürselin usulcülere göre makbul bir delil oluşu ve çağdaş meselelerde çözüm amaçlı olarak kullanımını ele almaktadı. Makale, varılan sonuçların listelendiği bir sonuç bölümüyle bitmektedir.This research aims to show applications of the approval guide of cooperative insurance contract, as a legitimate alternative for an interest-based commercial insurance one. And the concept of the approval guide, linguistic and idiomatically, and the views of scholars of jurisprudence, in protest, the approval guide, and its most prominent applications in contemporary life, and the concept of cooperative insurance contract, linguistic and religiously, and editing dispute, and controls, developed by scholars, for insurance Cooperative contract ,is approved by the Islamic law, and prove that he approval guide is a significant evidence, and is able to accommodate and address contemporary issues. Then the most important conclusion our findings

Efficient Method Based on Blockchain Ensuring Data Integrity Auditing with Deduplication in Cloud

With the rapid development of cloud storage, more and more cloud clients can store and access their data anytime, from anywhere and using any device. Data deduplication may be considered an excellent choice to ensure data storage efficiency. Although cloud technology offers many advantages for storage service, it also introduces security challenges, especially with regards to data integrity, which is one of the most critical elements in any system. A data owner should thus enable data integrity auditing mechanisms. Much research has recently been undertaken to deal with these issues. In this paper, we propose a novel blockchain-based method, which can preserve cloud data integrity checking with data deduplication. In our method, a mediator performs data deduplication on the client side, which permits a reduction in the amount of outsourced data and a decrease in the computation time and the bandwidth used between the enterprise and the cloud service provider. This method supports private and public auditability. Our method also ensures the confidentiality of a client's data against auditors during the auditing process

Late gadolinium enhancement in Brugada syndrome: A marker for subtle underlying cardiomyopathy?

BACKGROUND: There is increasing evidence that the Brugada ECG pattern is a marker of subtle structural heart disease. OBJECTIVE: We characterised Brugada syndrome (BrS) patients using cardiovascular magnetic resonance (CMR) with late gadolinium enhancement (LGE). METHODS: BrS was diagnosed according to international guidelines. 26% BrS patients carried SCN5A mutations. CMR data from 78 BrS patients were compared with 78 healthy controls (44±15 vs 42±14 years; p=0.434 and 64% vs 64% male; p=1.000). RESULTS: Right ventricular (RV) ejection fraction was slightly lower (61±8% vs 64±5%; p=0.004) and RV end-systolic volume slightly greater (31±10mL/m(2) vs 28±6mL/m(2); p=0.038) in BrS compared with controls. These values remained within the normal range. LGE was demonstrated in 8% BrS patients (left ventricular (LV) midwall LGE in 5%) but not in controls (p=0.028). In BrS patients with midwall LGE there were no other features of cardiomyopathy at the time of CMR but genetic testing and follow-up has revealed a desmoplakin mutation in one patient and evolution of T-wave inversion throughout all precordial ECG leads in another. Neither patient fulfils diagnostic criteria for arrhythmogenic right ventricular cardiomyopathy. CONCLUSION: Some BrS patients have LV midwall LGE consistent with an underlying cardiomyopathic process. Even cases without LGE show greater RV volumes and reduced RV function. These findings lend further support to the presence of subtle structural abnormalities in BrS. The BrS pattern with LGE may serve as early markers for evolution of a cardiomyopathic phenotype over time. CMR is a potentially useful adjunct investigation in the clinical evaluation of BrS

Pituitary apoplexy can mimic acute meningoencephalitis or subarachnoid haemorrhage

Pituitary apoplexy is an uncommon but life-threatening condition that is often overlooked and underdiagnosed. We report a 45-year-old man who presented to our emergency department with a sudden onset headache, acute confusion, signs of meningeal irritation and ophthalmoplegia. An initial diagnosis of acute meningoencephalitis was made, which was amended to pituitary apoplexy following thorough investigation within the emergency department

Clean birth kits to improve birth practices: development and testing of a country level decision support tool

Background: Clean birth practices can prevent sepsis, one of the leading causes of both maternal and newborn mortality. Evidence suggests that clean birth kits (CBKs), as part of package that includes education, are associated with a reduction in newborn mortality, omphalitis, and puerperal sepsis. However, questions remain about how best to approach the introduction of CBKs in country. We set out to develop a practical decision support tool for programme managers of public health systems who are considering the potential role of CBKs in their strategy for care at birth. Methods: Development and testing of the decision support tool was a three-stage process involving an international expert group and country level testing. Stage 1, the development of the tool was undertaken by the Birth Kit Working Group and involved a review of the evidence, a consensus meeting, drafting of the proposed tool and expert review. In Stage 2 the tool was tested with users through interviews (9) and a focus group, with federal and provincial level decision makers in Pakistan. In Stage 3 the findings from the country level testing were reviewed by the expert group. Results: The decision support tool comprised three separate algorithms to guide the policy maker or programme manager through the specific steps required in making the country level decision about whether to use CBKs. The algorithms were supported by a series of questions (that could be administered by interview, focus group or questionnaire) to help the decision maker identify the information needed. The country level testing revealed that the decision support tool was easy to follow and helpful in making decisions about the potential role of CBKs. Minor modifications were made and the final algorithms are presented. Conclusion: Testing of the tool with users in Pakistan suggests that the tool facilitates discussion and aids decision making. However, testing in other countries is needed to determine whether these results can be replicated and to identify how the tool can be adapted to meet country specific needs

Differential effects of bile acids on the postprandial secretion of gut hormones: a randomized crossover study.

Bile acids (BA) regulate postprandial metabolism directly and indirectly by affecting the secretion of gut hormones like glucagon-like peptide-1 (GLP-1). The postprandial effects of BA on the secretion of other metabolically active hormones are not well understood. The objective of this study was to investigate the effects of oral ursodeoxycholic acid (UDCA) and chenodeoxycholic acid (CDCA) on postprandial secretion of GLP-1, oxyntomodulin (OXM), peptide YY (PYY), glucose-dependent insulinotropic peptide (GIP), glucagon, and ghrelin. Twelve healthy volunteers underwent a mixed meal test 60 min after ingestion of UDCA (12-16 mg/kg), CDCA (13-16 mg/kg), or no BA in a randomized crossover study. Glucose, insulin, GLP-1, OXM, PYY, GIP, glucagon, ghrelin, and fibroblast growth factor 19 were measured prior to BA administration at -60 and 0 min (just prior to mixed meal) and 15, 30, 60, 120, 180, and 240 min after the meal. UDCA and CDCA provoked differential gut hormone responses; UDCA did not have any significant effects, but CDCA provoked significant increases in GLP-1 and OXM and a profound reduction in GIP. CDCA increased fasting GLP-1 and OXM secretion in parallel with an increase in insulin. On the other hand, CDCA reduced postprandial secretion of GIP, with an associated reduction in postprandial insulin secretion. Exogenous CDCA can exert multiple salutary effects on the secretion of gut hormones; if these effects are confirmed in obesity and type 2 diabetes, CDCA may be a potential therapy for these conditions. NEW & NOTEWORTHY: Oral CDCA and UDCA have different effects on gut and pancreatic hormone secretion. A single dose of CDCA increased fasting secretion of the hormones GLP-1 and OXM with an accompanying increase in insulin secretion. CDCA also reduced postprandial GIP secretion, which was associated with reduced insulin. In contrast, UDCA did not change gut hormone secretion fasting or postprandially. Oral CDCA could be beneficial to patients with obesity and diabetes