A bstractWe provide an ultraviolet (UV) complete model for the R(D(∗)) anomalies, in which the additional contribution to semi-tauonic b → c transitions arises from decay to a right-handed sterile neutrino via exchange of a TeV-scale SU(2)L singlet W′. The model is based on an extension of the Standard Model (SM) hypercharge group, U(1)Y , to the SU(2)V × U(1)′ gauge group, containing several pairs of heavy vector-like fermions. We present a comprehensive phenomenological survey of the model, ranging from the low-energy flavor physics, direct searches at the LHC, to neutrino physics and cosmology. We show that, while the W′ and Z′-induced constraints are important, it is possible to find parameter space naturally consistent with all the available data. The sterile neutrino sector also offers rich phenomenology, including possibilities for measurable dark radiation, gamma ray signals, and displaced decays at colliders.

This paper presents the method of creating Expert system for decision support on the Android platform. The system knowledge base for the given area of expertise is generated by inductive learning methods based on examples from the WEKA data research system. The system was realized using the Expert System shell for the e2gDroid lite mobile device, based on the application area and a set of training examples, specifically based on the Covertype Data Set qualification problem.

Abstract This video demonstrates the microsurgical resection of brainstem hemangioblastoma. The patient is a 32-yr-old woman with Von Hippel Lindau syndrome who presented with quadriparesis and inability to swallow. Magnetic resonance imaging (MRI) of the neuroaxis revealed a brainstem cystic lesion with contrast-enhancing tumor nodule right along the posterior aspect of the lower part of medulla oblongata. The surgery was performed in the prone position with suboccipital craniectomy and partial C1 posterior arch removal. The aim of the surgery was to remove the tumor nodule.1-12 The tumor was separated from the right dorsal nerve roots, and then progressively dissected with coagulation of arterial feeders and draining vein and division of the pia circumferentially. Postoperative MRI revealed complete resection. The patient completely recovered from her quadriparesis and difficulty swallowing.

Introduction: The aim of this study was to assess effects of strength, stretching and balance home exercise program (moderate intensity, performed once a day, five times a week) on quality of life of people with knee osteoarthritis. Methods: Participants with knee osteoarthritis performed physical therapy for a period of two weeks at the Department for Physical Medicine and Rehabilitation. The study group (n=30) continued to perform exercise program at home while the control group (n=30) did not continue the exercise program. The participants in the study group performed strength, stretching and balance exercises of moderate intensity, once a day, five times a week, for a total of eight weeks. The Short Form-36 Health Questionnaire (SF-36) was used to examine the effects of exercise program. Results: There was no the difference between the average value of quality of life in all examined areas (physical functioning, role limitations due to physical problems, role limitations due to emotional problems, vitality/energy, mental health, social functioning, physical pain, perception of general health) at the beginning of the study between the study group and control group (p>0.05 in all eight areas). The difference between the average value of quality of life at the beginning and end of the study was statistically significantly higher in the study group compared to the control group (physical functioning p=0.0001; role limitations due to physical problems p=0.0001; role limitations due to emotional problems p=0.0001; vitality/energy p=0.0001; mental health p=0.0001; social functioning p=0.0001; bodily pain p=0.0001; perception of general health p=0.0001). Conclusion: Home exercise program consisting of strength, stretching and balance exercises, of moderate intensity, performed once a day, five times a week is effective in improving quality of life of people with knee osteoarthritis.

The fast increment in the number of IoT (Internet of Things) devices is accelerating the research on new solutions to make cloud services scalable. In this context, the novel concept of fog computing as well as the combined fog-to-cloud computing paradigm is becoming essential to decentralize the cloud, while bringing the services closer to the end-system. This article surveys e application layer communication protocols to fulfill the IoT communication requirements, and their potential for implementation in fog- and cloud-based IoT systems. To this end, the article first briefly presents potential protocol candidates, including request-reply and publish-subscribe protocols. After that, the article surveys these protocols based on their main characteristics, as well as the main performance issues, including latency, energy consumption, and network throughput. These findings are thereafter used to place the protocols in each segment of the system (IoT, fog, cloud), and thus opens up the discussion on their choice, interoperability, and wider system integration. The survey is expected to be useful to system architects and protocol designers when choosing the communication protocols in an integrated IoT-to-fog-to-cloud system architecture.

Introduction: Benign and malignant tumors can arise from each of the eyelid layers. Our aim was to investigate the frequency and distribution of the eyelid tumors in tertiary health institution in Tuzla Region in Bosnia and Herzegovina.             Methods: We analyzed medical records for all the patients treated for eyelid malignancies in University Clinical Center Tuzla, from January 2012 to December 2016. Demographic, clinical and pathological data were collected and analyzed.           Results: A total of 89 patients were treated during the 5 year period. Forty seven of the patients were male (52 %) and 42 (48 %) were female. Patient age ranged from 11 to 92 years, with the mean age of 66.6 years. The most common eyelid malignancy was basal cell carcinoma (80.95%), followed by squamous cell carcinoma (14.29%), merkel cell carcinoma (3.17%) and melanoma (1.59%). Conclusion: The annual incidence of eyelid tumors in Tuzla region is about 3.73/100 000 population. Majority of the malignant tumors were basal cell carcinoma, while melanoma was the least frequent. Most frequent benign lesions were seborrheic keratosis and benign nevi.