Microsurgical clipping remains a durable treatment for intracranial aneurysms. Despite the low rate of re-treatment, recurrence of subarachnoid hemorrhage is 3% within the first 10 years. This may be caused by rupture of a recurrent or residual aneurysm at the clip site or by rupture of another untreated aneurysm. We investigated the natural history of aneurysms treated with microsurgical clipp...

PURPOSE To determine the rankings of 6 input-output functions for understanding low-level, conversational, and high-level speech in multitalker babble without manipulating volume control for listeners with normal hearing, flat sensorineural hearing loss, and mildly sloping sensorineural hearing loss. METHOD Peak clipping, compression limiting, and 4 wide dynamic range compression (WDRC) input...

In this paper, the performance of a new decision-directed signal reconstruction (DDSR) algorithm with optimal thresholds for use optical orthogonal frequency division multiplexing (OFDM) modulation is investigated. Clipping noise remains one main drawbacks in many practical OFDM transmission systems. It has been shown previous studies that time-domain based DDSR can be used to effectively reduc...

BACKGROUND AND PURPOSE Both endovascular and surgical options are available for treatment of unruptured cerebral aneurysms. We conducted a study to determine the costs versus Medicare reimbursement for hospitalization of these patients, which is important information for understanding the economic impact of these patients on hospitals. MATERIALS AND METHODS Using the NIS, we identified hospit...

We investigate iterative receive algorithms for orthogonal frequency division multiplexing (OFDM) transmission affected by clipping at the transmit power amplifier (PA). One algorithm aims at minimizing the Euclidean distance to the received sequence, while the other reconstructs the clipping noise. Both methods significantly reduce the BER compared to simple zero forcing, even for severe clipp...

Saturation Artifact If a 3-mV peak signal is being amplified at a gain of 5000, the final output will be 15 000 mV or 15 V; however, if the system supply voltage is limited to 10 V, the overall signal amplitude would be limited to about 9.5 V (slightly below the supply voltage). The signal would simply be cut off above 9.5 V, although the amplifiers would attempt to drive themselves up to the r...

BACKGROUND Unruptured saccular intracranial aneurysm (SIA) is associated with an increased prevalence of migraine, but it is unclear whether this is altered by clipping of the aneurysm. The aim of our study was to determine whether remission rate of migraine and other recurrent headaches was greater in patients with SIA after clipping than in controls. METHODS We prospectively studied 87 SIA ...

in this experiment 144 hy-line (w36) laying hens, 65 to 77 weeks of age were separated into 4 treatments with 3 replicates (12 birds per replicate) in a completely randomized design experiment. the grass clipping wastes incorporated into a complete formulated layer diet, consisting on a corn and soybean based diet, were 0, 1.5, 3.0 and 4.5% in 1 to 4 experimental groups. the results showed that...

Peak to Average Power Ratio (PAPR) is one of most detrimental aspects in any wireless communication system using multicarrier modulation technique like OFDM, which cause power degradation and spectral spreading. Due to the simplest way for PAPR reduction, clipping technique has been proposed and seems to be promising for use in commercial system. In this paper, we mainly focus on Amplitude clip...