Maximum Peak Amplitude Research Articles

"Inadequate Tranquility" as a Latent Form of Anxiety in Children and Adolescents

In the article school anxiety is considered as a component of school disadaptation and as a personal formation. The phenomenon of school disadaptation is getting more widespread nowadays, indicating that there is a disparity between students’ social, psychological and physiological status and the requirements of school environment. It is confirmed that there are 2 risk groups: manifestly anxious and latently anxious or inadequately tranquil children. Aggression is often a specific form of behavior in the case of hidden anxiety. The aim of the study is to find psychophysiological markers of hostility and anger in inadequately tranquil adolescents. The study involved 66 students (23 of them were included in the inadequately tranquil group) of 9th and 10th grades of Moscow secondary school, whose average age was 15.3±0.7 years old. We used Bass-Perry’s Aggression Questionnaire to assess levels of hostility and anger, and recorded EEG in Pz and ECG at rest with closed and open eyes. In the inadequately tranquil group anger correlated with the stress index, the index of autonomic balance, LF% and LF/HF ratio negatively and with HF and HF% positively. Hostility correlated with the stress index, the amplitude of maximum peak of alpha activity and LF% negatively and with HF% positively. Thus, in this group the tension of the regulatory system is not detected. However, over time the inadequate tranquility can change into manifest anxiety. This group requires further observation. In addition, aggression and hostility are seen as a coping strategy, that is realized by the students in order to regulate their condition and reduce mental stress in a stressful situation. Keywords: inadequate tranquility; normative anxiety; explicit anxiety, hostility; stress index; heart rate variability.

Design of ultrasonic fingerprint sensor made of 1–3 piezocomposites by finite element method

In this study, the feasibility of an ultrasonic fingerprint sensor made of a 1–3 piezocomposite material was analyzed using the finite element method, and a fingerprint identification method suitable for the piezocomposite sensor was also determined. Two finite element models were constructed, one without acoustic walls and one with acoustic walls. Two methods for signal analysis were used to identify the ridges and valleys of a fingerprint: comparing (1) maximum peak amplitudes of the reflected waves from the ridges and valleys and (2) flight time differences of the same-ordered peaks. Both methods were applied to the two models. The maximum peak amplitude analysis of the model with acoustic walls showed the best performance in identifying the ridges and valleys. The efficacy of this identification scheme was illustrated using two three-dimensional (3D) fingerprint models: one with concentric circles and one with several concentric semicircles and curves at two corners. Results of this work can lead to the development of more efficient and sensitive ultrasonic fingerprint sensors.

Blood pressure and hemodynamics: Mayer waves in different phases of ovarian and menstrual cycle in women.

The goal of the research is to investigate the special effect of ovarian-menstrual cycle phases on the level of women's blood pressure and characteristics of Mayer waves. 77 women aged 18-19 were tested under condition close to the state of basal metabolism in follicular phase (I), ovulation (II) and luteal phase (III) of ovarian-menstrual cycle. In phases II and III, the increase of mean and diastolic blood pressure level, in comparison with phase I in the prone position at rest and with psycho-emotional loading, were observed. The distinctions between variation parameters of R-R interval duration, stroke volume and its synchronization in phases II and III, in comparison with phase I, were observed in the prone position at rest, during tilt-test and with psycho-emotional loading. The substantial level of relationship between the power of Mayer waves and mean and diastolic blood pressure, mainly in phase I under conditions of all types, is observed. The maximum peak amplitude of stroke volume spectrogram is associated with pressure levels in the range of 0.04-0.15 Hz (rho from -0.33 to -0.64). The obtained results indicate the possible participation of spontaneous baroreflex sensitivity characteristics in keeping blood pressure level in women.

Sound quality evaluation of air-conditioner noise based on factors of the autocorrelation function

The aim of this paper is to clarify the characteristics of air-conditioner noise and determine the factor that is most influential on the subjective annoyance caused by this noise. The A-weighted equivalent continuous sound pressure level (LAeq) and factors extracted from the autocorrelation function (ACF) were analyzed. Subjective annoyance was evaluated using a paired comparison method. Multiple regression analyses were performed using a linear combination of LAeq, the ACF factors, and their standard deviations (SDs). The results indicated that the noise characteristics caused by each air conditioner and each operating level are determined by LAeq, and by the width of the first decay of the ACF, Wϕ(0), which corresponds to the spectral centroid. The multiple regression analyses indicated that the total subjective annoyance caused by air-conditioner noise can be predicted using the delay time and amplitude of the first maximum peak of the ACF (τ1 and ϕ1) and the SD of ϕ1. Annoyance was found to increase with decreasing τ1 and ϕ1, and with increasing ϕ1 SD, suggesting that noise components with higher pitches, weaker pitch strengths, and larger pitch strength variations cause greater levels of annoyance.

Automated ECG Noise Detection and Classification System for Unsupervised Healthcare Monitoring.

Automatic detection and classification of noises can play a vital role in the development of robust unsupervised electrocardiogram (ECG) analysis systems. This paper proposes a novel unified framework for automatic detection, localization, and classification of single and combined ECG noises. The proposed framework consists of the modified ensemble empirical mode decomposition (CEEMD), the short-term temporal feature extraction, and the decision-rule-based noise detection and classification. In the proposed framework, ECG signals are first decomposed using the modified CEEMD algorithm for discriminating the ECG components from the noises and artifacts. Then, the short-term temporal features such as maximum absolute amplitude, number of zerocrossings, and local maximum peak amplitude of the autocorelation function are computed from the extracted high-frequency and low-frequency signals. Finally, a decision rule-based algorithm is presented for detecting the presence of noises and classifying the processed ECG signals into six signal groups: noise-free ECG, ECG+BW, ECG+MA, ECG+PLI, ECG+BW+PLI, and ECG+BW+MA. The proposed framework is rigorously evaluated on five benchmark ECG databases and the real-time ECG signals. The proposed framework achieves an average sensitivity of 99.12%, specificity of 98.56%, and overall accuracy of 98.90% in detecting the presence of noises. Classification results show that the framework achieves an average sensitivity, positive predictivity, and classification accuracy of 98.93%, 98.39%, and 97.38%, respectively. The proposed framework not only achieves better noise detection and classification rates than the current state-of-the-art methods but also accurately localizes short bursts of noises with low endpoint delineation errors. Extensive studies on benchmark databases demonstrate that the proposed framework is more suitable for reducing false alarm rates and selecting appropriate noise-specific denoising techniques in automated ECG analysis applications.

The effect of water-cement ratio on acousto-ultrasonic characteristics in mortar

A self-improved and debugged acousto-ultrasonic system was used to investigate the effect of water cement ratio (w/c ratio) on ultrasonic pulse wave propagation and find more accurate and effective evaluation parameters than the traditional ultrasonic pulse velocity (UPV). An experimental study on the uniaxial compression test and acousto-ultrasonic test of mortar cylinder with different w/c ratios (0.4, 0.5, 0.6) was presented. The results showed that the increase of w/c ratios deteriorated the mortar mechanical properties with the compressive strength decreased and reduced the UPV. The high w/c ratio also leaded high attention of wave amplitude and energy. Through analysis of the ultrasonic pulse waveforms, the maximum peak amplitude (AE parameter) couldn’t reflect the real change of the waveforms. The parameter energy, which is mainly determined by the average amplitude, showed a higher sensitivity to the mortar w/c ratio and more accurate reflection of the changes of the waveforms with different w/c ratios. Compared with other parameters, the energy could be used to evaluate the cement based material properties changes caused by the changes of composition and external effect.

Passive mode locking and formation of dissipative solitons in electron oscillators with a bleaching absorber in the feedback loop

The mechanisms of passive mode locking and formation of ultrashort pulses in microwave electron oscillators with a bleaching absorber in the feedback loop have been analyzed. It is shown that in the group synchronism regime in which the translational velocity of particles coincides with the group velocity of the electromagnetic wave, the pulse formation can be described by the equations known in the theory of dissipative solitons. At the same time, the regimes in which the translational velocity of electrons differs from the group velocity and the soliton being formed and moving along the electron beam consecutively (cumulatively) receives energy from various electron fractions are optimal for generating pulses with the maximal peak amplitudes.

Evaluation of the Sealing Capability of the Implant Healing Screw by Using Real Time Volatile Organic Compounds Analysis: Internal Hexagon Versus Cone Morse.

Implant sealing capability is a crucial issue in assessment of implant success and peri-implant marginal bone loss. Clinical studies demonstrated presence of viable bacteria in the internal part of functioning implants during tissue healing. For this study, a volatile organic compounds (VOCs) emission test was developed to evaluate the existing "seal" between implant and healing screw. Two kinds of implant-screw connection were compared: 1) internal hexagon; and 2) cone Morse. Fifteen patients were enrolled in the study, three males and 12 females, who required fixed prosthetic rehabilitation. A total of 37 implants was placed, 23 with a cone Morse taper internal connection and 14 with a screw-retained internal hexagon abutment. VOCs real-time measures were performed in the implant site immediately after removing the healing screw. Statistical analysis was carried out. Results showed VOCs maximum peak amplitude in cone Morse versus internal hexagon showed significant difference (P <0.001), whereas VOCs time to peak showed no significant difference (P = 0.7). Use of the new methodology for the VOCs emission test may lead to important new data for understanding how the "failed" attachment of implant components, in two-part assemblies, may contribute to implant losses. In particular, study results support the hypothesis that the microgap of the implant-screw healing junction could cause differences in bacterial penetration. VOCs emission test evaluation represents a new diagnostic tool with an effective approach to quickly analyze, in real time, sealing capability of dental implants with healing screw interfaces.

Investigations on highly sensitive fiber Bragg gratings with different grating shapes for far field applications

The Fiber Brag Grating (FBG) optical sensor is investigated with uniform fiber grating (UFBG), superstructure fiber Bragg grating (SFBG) and tilted fiber Bragg grating (TFBG) using Finite Difference Time Domain (FDTD). The effect of variation in Refractive Index (RI) on the far field pattern of the guided light, reflection and the transmission power spectra of the gratings have been observed. TFBG reported the best performance exhibiting maximum peak amplitude of far field is 0.218 a. u., followed by UFBG is 0.0467 a. u. and SFBG is 0.0383 a. u. Further, the coupling efficiency of the gratings has been calculated from the mode overlap integral. The TFBG reported the highest value of 5.622%. SFBG followed it with 0.466% and UFBG with 0.012%. The SFBG reported the maximum value of reflected power i.e. 1.9456dB which is 3 times to that of UFBG (0.6317dB) and 5.67 times to that of TFBG (0.3433dB).

Effects of tongue pressing effortful swallow in older healthy individuals

IntroductionThe risk of swallowing disorders is increased for older individuals due to weak tongue and pharyngeal muscle strength. This study was appraised the value of a preventative approach by developing the tongue pressing effortful swallow (TPES) applied using a home-based and self-administered procedure. The TPES was developed by combining two swallowing exercises: tongue strengthening exercise and the effortful swallow. The purpose of this study was to examine the effects of the TPES on maximum tongue pressure and peak amplitude of submental muscle activity in older individuals. Material and methods27 older individuals (mean 73 years) performed a 4-week TPES. The exercise program was adapted to a home-based and self-administered procedure. The maximum tongue pressure was measured by the Iowa Oral Performance Instrument and peak amplitude of submental muscle activity by surface electromyography (sEMG). Statistical comparisons were made by a matched pairs t-test (p<0.05). ResultsThe results of this study showed that the TPES had statistically significant and positive effects on increasing maximum tongue pressure, but the peak amplitude of the submental sEMG did not differ between before and after exercises. ConclusionsThe TPES had a positive impact in older individuals. The TPES, a combining exercise, was possible because two exercises had common physiological events. The TPES was a more innovative and efficient approach than the tongue strengthening exercise alone. In addition, older individuals were able to perform the swallowing exercise at home and by themselves with little assistance. Future research needs to refine the TPES and apply it to patients with dysphagia.

89-06: Assessment of vectorcardiographic parameters of the paced QRS complex as prediction of acute hemodynamic response in CRT patients

Purpose of the study: Vectorcardiography (VCG) has been recently reported as a promising tool to predict acute hemodynamic response in CRT patients. We evaluated the ability of 9 VCG parameters in addition to QRS duration of the biventricular (BV) paced QRS complex to predict acute hemodynamic CRT response. Methods: VCG parameters from 753 BV paced electrocardiograms (25 patients, in each patient 5 BV, 1 multispot, 1 multivein setting and each setting at 5 different atrioventricular delays) were calculated according to Frank orthogonal lead system using custom made software. Maximum vector amplitude (VA) and maximum QRS area (AREA) in the frontal (X), horizontal (Y) and left sagittal plane (Z) and in 3D projection (3D) were measured. Additionally global QRS duration (QRSD) and time from maximum peak amplitude to the end of the QRS complex were assessed (TMax). For every VCG parameter the difference (Δ) between the BV paced and atrial paced QRS-complex was calculated. VCG-parameters were compared to changes in left ventricular pressure, expressed as dP/dt max. An increase of 10% in dP/dt max was considered as acute hemodynamic response (AHR). Results: All patients had an indication for CRT according to current ESC/AHA guidelines (84% male, 100% LBBB, mean QRSD 180 ± 25ms, 40%/60% NYHA II/III). Hemodynamic response was observed in 655 (84%) of the BV paced electrocardiograms. From all vectorcardiographic parameters VA3D, ΔVA3D, AREAZ, ΔAREAZ, ΔAREA3D, TMax and ΔQRSD differentiated AHR response from non-response (Table 1). The diagnostic accuracy to predict response was the highest for ΔAREAZ (AUC = 0.799), and ΔAREA3D (AUC = 0.723) (Table 1). Conclusion: Reduction in QRS area, measured in the left sagittal plane or in 3D projection, during BV pacing seems a useful VCG parameter to predict acute hemodynamic response in CRT patients. This method may be an easy, non-invasive tool for CRT optimization.

Subjective Preference for Air-Conditioner Sounds inside A Car In Summer and Winter

The aim of this paper was to clarify the relationship between subjective preference for air-conditioner sounds and sound quality indices, such as factors extracted from the autocorrelation function (ACF) inside a car in summer and winter. We evaluated subjective preference using a paired comparison method. Specifically, we performed multiple regression analyses with scale values of preference as the outcome variable using a linear combination of LAeq, the ACF factors, and their standard deviations. The results indicated that total subjective preference for air-conditioner sound can be predicted using LAeq, the amplitude of the first maximum peak of the ACF, φ1, which corresponds to the pitch strength, and the width of the first decay of the ACF, Wφ(0), which corresponds to the spectral centroid. We found preference to increase with a decrease in LAeq and φ1, and an increase in Wφ(0). Thus, air-conditioner sounds with quieter levels, weaker pitch strength, and lower spectral centroid were associated with higher levels of preference. The temperature of the atmosphere had no effect on subjective preference for air-conditioner sounds.

2D AMESING multi-echo 31P-MRSI of the liver at 7T allows transverse relaxation assessment and T2-weighted averaging for improved SNR

PurposeLiver diseases are a major global health concern often requiring invasive assessment by needle biopsy. 31P magnetic resonance spectroscopic imaging (MRSI) allows non-invasive probing of important liver metabolites. Recently, the adiabatic multi-echo spectroscopic imaging sequence with spherical k-space sampling (AMESING) was introduced at 7T, enabling acquisition of T2 information. T2-weighed averaging of the multiple echoes improves signal-to-noise ratio (SNR). The purpose of our study was to implement AMESING MRSI of the liver at 3T and 7T, derive localized T2 information and compare T2-weighted average spectra in terms of SNR. MethodsTen male volunteers underwent 2D AMESING MRSI at 3T and 7T after a minimum four-hour fast. SNR was calculated for PC, PE, Pi, GPE, GPC and α-ATP using maximum peak amplitudes and the SD of the noise. Metabolite peak ratios were calculated after fitting in jMRUI. SNR values and peak ratios were compared with the Wilcoxon signed-rank test. ResultsFor the first time liver metabolites' T2 values at 7T were measured: PE (55.6±3.5ms), PC (51.2±2.3ms), Pi (46.4±1.1ms), GPE (44.0±0.8ms), GPC (50.4±0.8ms) and α-ATP (18.2±0.4ms). SNR gain using T2-weighted averaging at 7T resulted in a 1.2× SNR gain. In conjunction with higher field strength and improved coil set-up T2-weighted averaging at 7T allowed a total 3.2× SNR gain compared to 3T FID-only. ConclusionAMESING 2D MRSI of the liver at 7T provides T2 values that allow T2-weighted averaging of data from multiple echoes resulting in improved SNR.

Calibration Technique for Maximum Power Harvest of Passive Wireless Microsystems

A calibration technique for maximizing radio-frequency power harvest of passive wireless microsystems with a step-up transformer is proposed. We show that both the impedance and resonant frequency of the step-up transformer matching network can be adjusted by varying the capacitance of a shunt varactor placed at the secondary winding of the transformer to maximize power transfer from the antenna to the transformer and the output voltage of the transformer subsequently the power efficiency of the voltage multiplier. A low-power current-mode tuning technique and a maximum peak amplitude detection technique to allocate the optimal tuning capacitance at which the maximum power harvest exists are introduced. The transformer matching network has been designed in IBM CMRF8SF 130-nm 1.2-V CMOS technology, and its performance is validated using both simulation and on-wafer measurement results.

Reference respiratory waveforms by minimum jerk model analysis.

CyberKnife(®) robotic surgery system has the ability to deliver radiation to a tumor subject to respiratory movements using Synchrony(®) mode with less than 2 mm tracking accuracy. However, rapid and rough motion tracking causes mechanical tracking errors and puts mechanical stress on the robotic joint, leading to unexpected radiation delivery errors. During clinical treatment, patient respiratory motions are much more complicated, suggesting the need for patient-specific modeling of respiratory motion. The purpose of this study was to propose a novel method that provides a reference respiratory wave to enable smooth tracking for each patient. The minimum jerk model, which mathematically derives smoothness by means of jerk, or the third derivative of position and the derivative of acceleration with respect to time that is proportional to the time rate of force changed was introduced to model a patient-specific respiratory motion wave to provide smooth motion tracking using CyberKnife(®). To verify that patient-specific minimum jerk respiratory waves were being tracked smoothly by Synchrony(®) mode, a tracking laser projection from CyberKnife(®) was optically analyzed every 0.1 s using a webcam and a calibrated grid on a motion phantom whose motion was in accordance with three pattern waves (cosine, typical free-breathing, and minimum jerk theoretical wave models) for the clinically relevant superior-inferior directions from six volunteers assessed on the same node of the same isocentric plan. Tracking discrepancy from the center of the grid to the beam projection was evaluated. The minimum jerk theoretical wave reduced the maximum-peak amplitude of radial tracking discrepancy compared with that of the waveforms modeled by cosine and typical free-breathing model by 22% and 35%, respectively, and provided smooth tracking for radial direction. Motion tracking constancy as indicated by radial tracking discrepancy affected by respiratory phase was improved in the minimum jerk theoretical model by 7.0% and 13% compared with that of the waveforms modeled by cosine and free-breathing model, respectively. The minimum jerk theoretical respiratory wave can achieve smooth tracking by CyberKnife(®) and may provide patient-specific respiratory modeling, which may be useful for respiratory training and coaching, as well as quality assurance of the mechanical CyberKnife(®) robotic trajectory.

Possible effects of inhibition of IKr and IKs on field-potential waveforms in the human iPS cell-derived cardiomyocytes sheet

In order to investigate how IKr and IKs inhibitions affect waveforms of the field potential in the human iPS cell-derived cardiomyocytes sheet, we analyzed the effects of E-4031 and chromanol 293B on the maximum upslope and peak amplitude of its second wave (n = 7 for each drug). E-4031 in 10–100 nM as well as chromanol 293B in 3–30 μM prolonged the field-potential duration, whereas E-4031 decreased the upslope in 10–100 nM and amplitude at 100 nM, which was not observed by chromanol 293B. Thus, the decrease of the upslope can be used as a supplemental marker of drug-induced IKr inhibition.

Bridge Load Rating Using Dynamic Response

Proposed herein is a method for load rating of prestressed box beam (PSBB) bridges based on their dynamic response collected using wireless sensor networks (WSNs). The hypothesis states that the health of a bridge is associated with its vibration signatures. Two WSNs were deployed on a 25-year-old PSBB bridge, and trucks were run with variable loads and speeds for collecting its real-time dynamic response at current condition. Also performed were finite-element (FE) simulations of 3D bridge models under vehicular loads to acquire the representative dynamic response at its newest condition. The bridge model was validated by field testing and numerical analysis. The fast Fourier transform and peak-picking algorithms were used to find maximum peak amplitudes and their corresponding frequencies. The in-service stiffness of the bridge was calculated to determine its load rating, which resembles the actual load rating of the bridge. The application software developed from this research can instantly determine the load rating of a PSBB bridge by collecting its real-time dynamic response. The research outcome will help reduce bridge maintenance costs and increase public safety.

Ação da dopamina na secreção do hormônio do crescimento em novilhas pré-púberes da raça Nelore

The aim of this study was to evaluate the response of dopamine in the growth hormone secretion (GH) during Nellore heifer’s sexual maturation. The animals were randomly assigned into two experimental groups: Sulpiride group (dopamine D2 antagonist, 0.59 mg/kg, S.C.) and control group (saline solution S.C.) at 8, 12 and 16 months of age. Blood samples were collected every 15 min for 10h after drug injection. Growth hormone was quantified by RIA, sensitivity (0.25 ng/mL) and intra and inter-assay variation coefficients were 15% and 17%, respectively. GH concentration was higher in sulpiride group than control group at 8 mo (10.1 ± 0.38 ng/mL vs 4.3 ± 0.34 ng/mL; P &lt;0.05) and 12 mo of age (9.46 ± 0.35 vs 3.74 ± 0.19 ng/mL; P &lt;0.05). In sulpiride group GH average concentration was greater at 8 and 12 mo compared to 16 mo of age (10.10 ± 0.38 ng/mL and 9.46 ± 0.35 ng/mL vs 4.87 ± 0.35 ng/mL; P &lt; 0.05) respectively. There was no difference between groups (P &gt; 0.05) in total GH secretion area, total peak area and maximum peak amplitude. These results suggested an inhibitory dopamine effect on GH secretion in pre-pubertal Nellore heifers that decreases according to age.

Surface electromyographic analysis of the biceps brachii muscle of cricket bowlers during bowling

Cricket bowling generates forces with torques on the upper limb muscles and makes the biceps brachii (BB) muscle vulnerable to overuse injury. The aim of this study was to investigate whether there are differences in the amplitude of the EMG signal of the BB muscle during fast and spin delivery, during the seven phases of both types of bowling and the kinesiological interpretation of the bowling arm for muscle contraction mechanisms during bowling. A group of 16 male amateur bowlers participated in this study, among them 8 fast bowlers (FB) and 8 spin bowlers (SB). The root mean square (EMGRMS), the average sEMG (EMGAVG), the maximum peak amplitude (EMGpeak), and the variability of the signal were calculated using the coefficient of variance (EMGCV) from the BB muscle of each bowler (FB and SB) during each bowling phase. The results demonstrate that, (i) the BB muscle is more active during FB than during SB, (ii) the point of ball release and follow-through generated higher signals than the other five movements during both bowling categories, (iii) the BB muscle variability is higher during SB compared with FB, (iv) four statistically significant differences (p<0.05) found between the bowling phases in fast bowling and three in spin bowling, and (v) several arm mechanics occurred for muscle contraction. There are possible clinical significances from the outcomes; like, recurring dynamic contractions on BB muscle can facilitate to clarify the maximum occurrence of shoulder pain as well as biceps tendonitis those are medically observed in professional cricket bowlers, and treatment methods with specific injury prevention programmes should focus on the different bowling phases with the maximum muscle effect. Finally, these considerations will be of particular importance in assessing different physical therapy on bowler's muscle which can improve the ball delivery performance and stability of cricket bowlers.

L-, S-, and C-Band EMI Measurement and Characterization of Spacecraft ESD Events

Built upon existing electric thruster pulse emission research capabilities, time-domain techniques were employed to capture the electromagnetic interference (EMI) emission in simulated spacecraft electrostatic discharges. The test setup included custom-built four-channel data acquisition instrumentation anchored by a 15-GHz digital oscilloscope, and a dedicated fiberglass vacuum chamber inside a semianechoic shielded room. The test article was designed to simulate a solar cell array and was irradiated with an electron gun. Emission pulse waveforms and frequency spectra of EMI emission pulses obtained via Fourier transform are presented for both conducted and radiated emissions. Statistical analyses were made of the radiated emission of 100 discharge events each for eight experimental modes that varied electron gun potential from 10 to 20 kV and substrate bias conditions of 0 V, 5 kV, and floating for a normal gradient configuration. The peak of the amplitudes distributions were near 70, 60, and 50 dBìV/m/MHz for the L-, S-, and C-band, respectively, with maximum peak amplitudes of 80, 75, and 65 dBμV/m/MHz for these three bands.