Cloud based mobile learning (m-learning) is emerging as one of the most important branches of cloud computing, and is still in its infancy. These days, there are two emerging archetypes in Information and Communication Technologies (ICT) for learning. The first one is the anytime, anywhere, on-the-move, to be called the mobility archetype, and the second one is the cloud computing. Both archetypes are radically transforming the way we learn, communicate, access, and utilize information resources, and connect with peers and colleagues, thus affecting all aspects of education. This chapter delivers an introduction of the evolution of cloud based m-learning, benefits and characteristics of cloud based m-learning. It also canvasses the current scenario of m-learning utilizing the cloud, various challenges for implementing the m-learning system on the cloud. It further confers technologies used for cloud based m-learning. It also considers a brief look at methods for creating m-learning content and experiences, suggested by various researchers and concluded with the future aspects of the cloud based m-learning.
The incidence of dermoid ovarian cyst is 15-20% of all ovarian neoplasm, which is a common entity. Mesenteric cyst are one of the very rare entities with incidence of 1 in 2, 50, 000. Dermoid cysts rarely present as mesenteric cysts. Mesenteric dermoid cyst have good prognosis. Here, we report a rare abdominal tumor which was initially diagnosed clinically as an ovarian dermoid cyst but operative and histology revealed it to be mesenteric dermoid cyst. A 36 year-old, multiparous presented with abdominal mass, gradually increasing in size since 1 year with recent onset of abdominal pain. Physical examination revealed abdominal mass of 22×20 cm size, globular, non-tender, mobile, and cystic to solid in consistency. Contrast-enhanced computed tomography (CECT) showed 23×21×14.4 cm heterogeneous enhancing mass lesion with areas of fat density and calcifications within, suggestive of neoplastic mass lesion, likely teratoma. Tumor markers were within normal limit. Patient was managed surgically. Laparotomy findings revealed a huge solid mesenteric mass (22×20 cm) weighing 6.5 kgs. Histopathology showed mature cartilage, osteoid formation, fibro-adipose connective tissue, focal lymphoid aggregates, congested blood vessels and focal mature neuronal component and no immature elements seen, confirming dermoid cyst. Mesenteric cyst are rare intra-abdominal tumor found most commonly in ileum (60%) next is ascending colon (40%). However, if a mesenteric cyst locates within the pelvic cavity, as in this case, it may be misdiagnosed as an ovarian cyst.
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