Three-Factor Anonymous Authentication and Key Agreement Scheme for Telecare Medicine Information Systems

Nowadays, with comprehensive employment of the internet, healthcare delivery services is provided remotely by telecare medicine information systems (TMISs). A secure mechanism for authentication and key agreement is one of the most important security requirements for TMISs. Recently, Tan proposed a user anonymity preserving three-factor authentication scheme for TMIS. The present paper shows that Tan’s scheme is vulnerable to replay attacks and Denial-of-Service attacks. In order to overcome these security flaws, a new and efficient three-factor anonymous authentication and key agreement scheme for TMIS is proposed. Security and performance analysis shows superiority of the proposed scheme in comparison with previously proposed schemes that are related to security of TMISs.     

Pharmacological and phytochemical biodiversity of Corchorus olitorius

Corchorus olitorius L. is a nutritious green leafy vegetable that is eaten as a viscous soup in African and Middle Eastern cultures. The purpose of this review is to highlight the nutritional and nutraceutical potential of this plant. The leaves of C. olitorius are rich providers of minerals as calcium and iron in addition to vitamins B1, B2, folic acid C and E. The leaves contain numerous compounds having several biological effects including antidiabetic and antioxidant properties. Besides, the leaves comprise other phytochemicals such as cardiac glycosides, terpenes, flavonoids, fatty acids, hydrocarbons and phenolics. Various extracts of C. olitorius were shown to exhibit antioxidant, anti-inflammatory, hepatoprotective, antihyperlipidemic, immunostimulant, antitumor, antimicrobial, antidiabetic, analgesic, wound-healing properties and cardioprotective activities.

Corchorus olitorius L. is a nutritious green leafy vegetable that is eaten as a viscous soup in African and Middle Eastern cultures.     

Addressing medication errors in an adult oncology department in Saudi Arabia: A qualitative study

ObjectiveThere is a wide range of strategies that could help in minimizing medication errors during healthcare delivery. We undertook a qualitative study to identify recommended solutions to minimize medication errors in an adult oncology department in Saudi Arabia from the perspectives of healthcare professionals.MethodsThis was a qualitative study conducted in an adult oncology department in Saudi Arabia. After obtaining the required ethical approvals and written consents from the participants, seven focus group discussions were carried out for data collection. A stratified purposive sampling strategy was used to recruit medical doctors, pharmacists, and nurses. NVivo Pro version 11 was used for data analyses. Inductive content analysis was adopted in the coding of collected data.ResultOur study showed that improving organizational support, staff education, and communication could help in minimizing medication errors in the adult oncology department.ConclusionThe adoption of multiple strategies is required to improve the safety of the medication process in the adult oncology department. We argue that the availability of supportive leadership should be prioritized as it plays a crucial role in determining the effectiveness and efficiency of both staff education and communication.     

Angiosarcomatous component in gliosarcoma: case report and consideration of diagnostic challenge and hemorrhagic propensity

An angiosarcomatous component in gliosarcoma may be associated with an increased intraoperative hemorrhagic risk and preoperative diagnostic challenge. We report a unique case of gliosarcoma with an angiosarcomatous component in a 61-year-old man. His brain MRI demonstrated a well-demarcated right occipital tumor with multiple flow voids and rim-like enhancement as well as intratumoral strip and nodular enhancements. He underwent a craniotomy for tumor resection. Intraoperatively, significant tumor hemorrhage required greater efforts to control intraoperative bleeding and to maintain hemostasis. Pathological examination of the tumor revealed alternating gliomatous and sarcomatous/angiosarcomatous components with intratumoral hemorrhage. He was postoperatively treated with chemoradiation. The tumor recurred at 9 months, for which the second resection was performed with similarly greater efforts to achieve hemostasis. The recurrent tumor was pathologically similar despite treatment-associated changes. Awareness of this angiosarcomatous component in gliosarcoma with the hemorrhagic risk is important for both the preoperative diagnosis and surgical management.