Orthogonal frequency division multiple-xing (OFDM) is an effective transmission method for cognitive radio system. This method provides high bandwidth and robustness against time dispersive channel. But OFDM inherits the high side lobe power and peak to average power ratio. High side lobe power of primary user (PU) distorts the signal of the secondary user (SU). In this paper we reduce the side...

A 67-year-old woman with multiple myeloma and recently treated left upper pneumonia was admitted to the hospital for acute-onset shortness of breath. Chest radiography showed a left upper lobe infiltrate. CT angiography revealed right-sided pulmonary embolus. IV heparin was started through a new right subclavian central venous catheter. The patient was then transferred to the Methodist Hospital...

To investigate early head turning, we retrospectively studied videotapes of 262 seizures from 82 patients who were seizure free after temporal lobectomy. Early head movements were arbitrarily classified into non-tonic turning, tonic turning, and absence of turning. Among the 222 seizures which showed early head turning, 168 (75.7%) had non-tonic turning and 54 (24.3%) had tonic turning. The dir...

Beside advanced age, cerebral amyloid angiopathy (CAA) and hypertension (HTA) are the two most important risk factors for haemorrhagic stroke. Inflammatory changes of amyloid-laden vessels have been reported only in rare sporadic CAA cases. We present the case of a 78-year-old woman with a history of hypertension, dementia and haemorrhagic stroke of the right frontal lobe 2 years before admissi...

amoebic liver abscess is a complication of amoebiasis that needs early diagnosis and proper treatment before further complications occur. we report a-35 year old female presented by fever and dyspnea due to huge liver abscess complicated by massive right side empyema. the patient was effectively treated by percutaneous drainage for both the right lobe abscess and empyema together with pharmaco-...

BACKGROUND AND PURPOSE Unilateral mesial temporal lobe epilepsy and hippocampal sclerosis have structural and functional abnormalities in the mesial temporal regions. To gain insight into the pathophysiology of the epileptic network in mesial temporal lobe epilepsy with hippocampal sclerosis, we aimed to clarify the relationships between hippocampal atrophy and the altered connection between th...

The article presents a case of 57-year-old woman with the infiltration of rare small lymphocytic B cell lymphoma in the thyroid gland. Initially, the patient was followed-up due to chronic lymphocytic B-cell leukemia diagnosed on the basis of histopathological examination of cervical lymph node. Eight months later, general symptoms occurred along with lymphocytosis and exacerbation of lesions i...

While the noise reduction performance of the Generalized Sidelobe Canceller (GSC) depends on the validity of a priori assumptions about the signal model, the recently developed multi-channel Wiener filter technique does not rely on any such a priori information. This provides a potential benefit of the latter over GSC. However, both techniques also rely on a speech detection algorithm. In this ...

Usually the generalized sidelobe canceller (GSC) beamformer requires additional highpass pre-filtering due to insufficient suppression of low frequency directional interference, and it deteriorates the bandwidth quality of speech enhancement, especially for small size microphone array. This paper proposes a new GSC beamformer with multiple frequency dependent norm-constrained adaptive filters (...