massive upper gastrointestinal bleeding is a known complication of advanced sepsis in trauma patients and carries a grave prognosis. however, to our knowledge, an important cause of massive gastrointestinal bleeding, arterio-visceral fistula, has not been discussed in the literature. the most common cause of this unique clinical entity is penetrating high velocity abdominal injuries, although b...

the authors report a rare and curious case of massive uveitis with an exudative mass in the anterior chamber rather resembling the crystalline lens. they followed up the case clinically and took a series of photographs showing its rapid evolution. the exudative mass was atfor a dislocation of the lens in the anterior chamber

casimir forces of massive ferrnionic dirac fields are calculated for parallel plates geometry in spatial space with dimension d and imposing bag model boundary conditions. it is shown that in the range of ma>>l where m is mass of fields quanta and a is the separation distance of the plates, it is equal to massive bosonic fields casimir force for each degree of freedom. we argue this equality ex...

introduction transfusion of red blood cells is a key component in the resuscitation of massively hemorrhaging patients post-injury. little is known about the functional status of patients at discharge or the outcome of patients after discharge from acute hospitalization. we assessed the changes among major trauma patients who had received massive transfusions. materials and methods this article...

The present paper aims at investigating the manner of two dissipative massive scalar fields. Two massive scalar fields that interact with a reservoir were considered and a reservoir was modeled by continuum Klein-Gordon fields. The Lagrangian of the total system was canonically quantized and the dynamics of the system was determined using the Euler-Lagrange equation. Then, the explicit form of the...

Gotham's disease or vanishing bone is a rare disease with unknown etiology. Frequently, children and young adults are affected. It is characterized by proliferation of vascular or lymphatic tissue which results in destruction and resorption of bone. In this disease, the destructed bone is replaced either by hemangiomatous or lymphangiomatous tissue ( s) and in a later stage, fibrosis occurs. It...

In three dimensions, there are two distinct mass-generating mechanisms for gauge vector and tensor fields: adding the usual Proca/Pauli-Fierz, or the more esoteric Chern-Simons (CS), terms. Here, we analyze the three-term models where both types are present, and their various limits. Surprisingly, in the tensor case, these seemingly innocuous systems are physically unacceptable. If the sign of ...

A commonly known and widely studied problem of massive open online courses (MOOCs) is the high drop-out rate of students. In this paper we propose and analyze the composition of small learning groups as a solution to this problem. In an experiment, we composed such small learning groups in a MOOC context using two methods: Random grouping and grouping by an algorithm that considers selected stu...

Based on the International Conference on Information Systems’ (ICIS) 2014 senior scholars’ forum, we share insights on the relationship between evolving university business models and the adoption of electronic pedagogy. In recent years, particularly with the initiation of MOOCs, the potential for delivering high-quality and widely distributed coursework has expanded. However, particular instan...

We present AttentiveLearner, an intelligent mobile learning system optimized for consuming lecture videos in both Massive Open Online Courses (MOOCs) and flipped classrooms. AttentiveLearner uses on-lens finger gestures as an intuitive control channel for video playback. More importantly, AttentiveLearner implicitly extracts learners’ heart rates and infers their attention by analyzing learners...