Control feedback. Medical search. Frequent questions

Centers for Disease Control and Prevention. (cdc.gov)
The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website. (cdc.gov)
The Centers for Disease Control and Prevention (CDC) and U.S. Food and Drug Administration (FDA) are alerting healthcare providers and facilities about the public health need to properly maintain, clean, and disinfect or sterilize reusable medical devices. (cdc.gov)

This cluster-randomised controlled trial used routinely collected National Health Service (NHS) dental prescribing and treatment claim data to compare the impact of individualised audit and feedback (A&F) interventions on dentists' antibiotic prescribing rates. (org.in)

The fruit fly Drosophila melanogaster relies on feedback from multiple sensory modalities to control flight maneuvers. (caltech.edu)
Although motor reflexes driven by the two modalities have been studied individually, little is known about how the two sensory feedback channels are integrated during flight. (caltech.edu)
This enhanced control of the hand-exoskeleton with brainwave activity is most likely due to higher engagement of subjects facilitated by rich sensory feedback provided by the nature of our exoskeleton," explains Millán. (epfl.ch)
The idea of feedforward control is that the system learns, via overt feedback and correction mechanisms, the motor routines necessary for hitting sensory targets. (talkingbrains.org)
To summarize (in rough terms), the cause of occasional phonemic errors in conduction aphasics may be the same as in postlingually deaf individuals who presumably have intact internal forward model prediction circuitry: the feedforward motor programs for speech are not completely perfect and thus errors will occur without sensory feedback control. (talkingbrains.org)
Ikaros Control System The Ikaros framework (www.ikaros-project.org) provides the robot with features such as real-time sensory processing and motor control, threading, web based monitor interface, and a selection of over 200 modules for various processing and control functions (Balkenius, et al. (lu.se)

This standard provides the minimum requirements for a fire department infection control program to identify and limit the potential of an infectious exposure to fire department members during the performance of their assigned duties and within the fire department working and living environment. (cdc.gov)

The problem is formalized as a stochastic optimal control over the continuous robot kinematic model to minimize a cost function that involves the covariance matrix of the landmark states. (harvard.edu)
Unlike the conventional factorization approach, which extracts synergies from electromyographic data, the proposed method employs a biomechanical model and formally defines the synergies as the solution of an optimal control problem. (uwaterloo.ca)

Feedback loops for discrete processes are generally much simpler than continuous control loops, since discrete processes do not involve as much inertia. (controleng.com)
Once system designers have a good understanding of this relationship, they can focus on mastering the two key areas of influence that they have over the noise behaviors in their angular rate feedback loops: 1. (analog.com)

design a nonlinear controller by means of feedback linearisation. (tuwien.ac.at)

That modification requires only the addition of a single capacitor and resistor in the feedback circuit of the controller IC. (electronicdesign.com)
Referring to Fig. 1 , a typical hysteretic buck controller IC includes a comparator, PMOS driver, one-shot, short-circuit protection and inrush control, and does not require an oscillator to control the switching frequency. (electronicdesign.com)
This reduces V OUT ripple required by the controller because feedback resistors R1 and R2 will not divide the output ripple voltage down. (electronicdesign.com)
The driver controlling the car gets instantaneous results after turning on the lights, whereas the cruise controller sees much more gradual results as the car slowly speeds up or slows down. (controleng.com)
Inertia tends to complicate the design of a continuous control loop, since a continuous controller typically needs to make a series of decisions before the results of its earlier efforts are completely evident. (controleng.com)
A fast-acting PID controller that makes aggressive control decisions works well on a slow process and vice-versa. (controleng.com)
This paper discusses the fault tolerant spatial controller de sign with periodic output feedback for a 540 MWe PHWR. (actapress.com)
This model having 14 inputs and outputs each, is used to design a fault tolerant spatial controller with the periodic output feedback gains. (actapress.com)
After analyzing the open-loop dynamics of this multicellular system, we present two alternative feedback control strategies, one based on a gain-scheduled state feedback controller, the other on a switching control strategy. (biorxiv.org)
This paper describes the implementation of an independent two-channel controller based on absolute velocity feedback and its performance in improving the isolation from base vibration of a mounted rigid equipment structure characterized by two-degrees of freedom. (soton.ac.uk)
We provide agent-level implementation details for the resulting output-feedback state-space controller. (lu.se)

The real-time detection of objects in optical microscopy allows their direct manipulation, which has recently become a new tool for the control, e.g., of active particles. (nature.com)
Especially the ability to see dynamic processes opens the possibility to influence these processes in real-time via feedback control. (nature.com)
In both cases, the optical images are analyzed in real-time to extract particle or molecule positions to control electric or temperature fields for positioning purposes. (nature.com)
The authors speculated that the presence of frequent feedback focused attention acutely on minor changes in the output value while at the same time truncating memory of choice behavior over longer time horizons. (scirp.org)
Without some real-time control of the pointing angle, these highly directional antennas may not be able to support continuous communication, while experiencing this type of inertial motion. (analog.com)
In this study, we evaluate the performance of feedback control-based time step adaptivity schemes for the nonlocal Cahn-Hilliard equation derived from the Ohta-Kawasaki free energy functional. (arxiv.org)
The temporal adaptivity scheme is recast under the linear feedback control theory equipped with an error estimation that extrapolates the solution obtained from an energy-stable, fully implicit time marching scheme. (arxiv.org)
The real-time feedback of the SWA can improve individual self-monitoring and, therefore, enhance weight loss outcomes. (nih.gov)
Continuous self-monitoring from wearable technology with real-time feedback may be particularly useful to enhance lifestyle changes that promote weight loss in sedentary overweight or obese adults. (nih.gov)
The obtained control is asymptotically optimal: the ratio of motion time to zero with this control to the minimum one is close to 1, if the initial energy of the system is large. (arxiv.org)
The feedback messages are being sent as RTCP receiver reports, and RFC 4585 specifies timing rules that make the use of those messages practical for time-sensitive codec control. (ietf.org)
Thank you for taking the time to leave us feedback on how we're doing! (flyingpigpest.com)
A controlled interrupted time series analysis was used to compare outcomes in the 12 months before and after the intervention. (medscape.com)

Due to the unique feedback compensation mode of the TL431 along with the optocouplers, tuning the feedback parameters still relies on trial and error. (richtek.com)
In these cases, the speaker relies more heavily on feedforward control because auditory feedback control is unavailable, and this leads to occasional phonemic errors. (talkingbrains.org)

When using any of the previously mentioned methods, the feed-forward capacitor (C FF ) is recommended to reduce output ripple voltage by providing an ac-coupling path from V OUT to the feedback pin. (electronicdesign.com)
Methods: This two-arm randomised control trial recruited 605 New Zealand adults via online advertising to complete a baseline and one-month follow-up survey to reduce daily sugar consumption, measured using a short semi-quantitative Food Frequency Questionnaire. (auckland.ac.nz)

We assessed the impact of an audit and feedback antimicrobial stewardship intervention on antimicrobial use, antimicrobial costs, clinical outcomes and microbiologic outcomes in two ICUs with different patient populations. (medscape.com)
The audit and feedback intervention was implemented in a trauma and neurosurgery ICU (TNICU) and a medical surgical ICU (MSICU) at a 465-bed teaching hospital in Toronto, Canada. (medscape.com)
Audit and feedback antimicrobial stewardship programs can lead to significant reductions in total antimicrobial use in the ICU setting. (medscape.com)

When education/training was combined with performance evaluation/feedback, significant improvement in ESW disinfection practices was reported. (cdc.gov)
Healthcare facilities should provide feedback from audits to personnel regarding their adherence to cleaning, disinfection, and sterilization procedures. (cdc.gov)

When you open Control System Designer from MATLAB ® , you can select one of six possible control architecture configurations. (mathworks.com)
If your control application does not match one of the supported control architectures, you can use block diagram algebra to convert your system to match an architecture. (mathworks.com)
For an example of such an application, see Design Multiloop Control System . (mathworks.com)
If you are unable to match your application to one of the supported control architectures, consider using the Control System Tuner app to design your control system. (mathworks.com)
This approach allows the enhancement of oscillation amplitude of the resonator at a reduced control effort, since the unstable orbit already exists in the system and it is not necessary to spend energy to create it. (hindawi.com)
In this type of function, noise in the angular rate signals (MEMS gyroscope output) can have a direct influence over critical system behaviors, such as platform stability, and is often the defining factor in the level of precision that a control system can support. (analog.com)
Understanding the system's dependence on gyroscope noise behaviors has a number of rewards, such as being able to establish relevant requirements for the feedback sensing element or, conversely, analyzing the system-level response to noise in a particular gyroscope. (analog.com)
Figure 1 offers an example architecture for a motion control system, which breaks the key system elements down into functional blocks. (analog.com)
Example of a motion control system architecture. (analog.com)
Moving from the architectural view of a motion control system in Figure 1, valuable definitions and insights also come from analyzing application-specific, physical attributes. (analog.com)
Furthermore, the weighting structure places greater influence on feedback from the halteres than from the visual system. (caltech.edu)
The right motor cortex is mostly active during control of the left hand, and vice versa, a property of the nervous system called contralateral control, contra for opposite, lateral for side. (epfl.ch)
Effective damping ratios of up to 600% in the modes of the suspended system could be introduced by the two control channels. (soton.ac.uk)
Finally, the control is shown to be robust to changes in the plate support dynamics, since adding masses at various positions on the base plate did not destabilize the system. (soton.ac.uk)
We are looking for a feedback control steering the system to the equilibrium. (arxiv.org)
The routine testing module contains practical information, such as values for performance indicators, a multifactorial approach to understanding test results, and a graphic to help assess how well-controlled a water system is for Legionella based on testing results. (cdc.gov)
It's the part of the brain that controls the endocrine system. (medlineplus.gov)
Each servo system provides feedback about the current position of each joint. (lu.se)
Further analysis in terms of parameter sensitivity reveals that this negative feedback loop in TGF-b signaling renders the system global robustness. (lu.se)

The hysteretic power supply is simpler than the voltage- or current-mode closed-loop-control dc-dc switchers, although its simplicity may be a bit deceiving due to component variations and potential sources of "injected" feedback voltage. (electronicdesign.com)
Arguably, the most basic tool of the control engineering profession is the feedback loop, shown below. (controleng.com)
The feedback loop starts with a MEMS gyroscope, which observes the rate of rotation (φ G ) on the stabilized platform . (analog.com)
We tackle the problem by separately obtaining an open-loop control sequence subject to deterministic dynamics by iterative Covariance Regulation (iCR) and a closed-loop feedback control under stochastic robot and covariance dynamics by Linear Quadratic Regulator (LQR). (harvard.edu)
This result serves as the negative feedback to the loop and then determines the duty cycle of the switching component Q. R S is the resistor for the primary-stage current detection. (richtek.com)

However, it may require a considerable control effort to produce an arbitrary trajectory. (hindawi.com)

Gain is the increase in volume attainable before feedback occurs. (galaxyaudio.com)

The exoskeleton is adaptable by design, so that the control interface can be chosen according to the residual physical ability of the patient. (epfl.ch)
In this note, the small-signal model of Christophe Basso [1] is adapted for our feedback compensation design. (richtek.com)
Longitudinal quasi-experimental controlled study with a pretest/post-test design. (bvsalud.org)
Future studies need to use a randomized controlled design with larger sample sizes to determine a true effect. (cdc.gov)

To examine this, we present three experiments in which people make decisions directly towards controlling a dynamically uncertain output. (scirp.org)
In [ 11 ] an adaptive control is used to control an uncertain model of a MEMS device and to synchronize it with a class of uncertain chaotic oscillators. (hindawi.com)

For participants who completed both surveys, mean daily sugar consumption at baseline for the intervention and control groups was 49.88 grams and 39.81 grams, respectively. (auckland.ac.nz)
This was a significant mean difference of 6.58 grams (p = 0.026) with a small effect size (d = 0.17) between the intervention and control groups. (auckland.ac.nz)
There were no statistically significant differences between the intervention and control groups in the secondary outcomes (mental well-being, self-efficacy, and cravings). (auckland.ac.nz)
Autoregressive model for total antimicrobial use per month measured in defined daily doses per 1000 patient days for intervention and control intensive care units. (medscape.com)

Basic operation requires feedback ripple voltage ( Fig. 2 ) to be compared with an internal V REF (1.242 V) to toggle the high-side PMOS driver whenever the comparator threshold exceeds its 10-mV hysteresis. (electronicdesign.com)

It is observed in recent results concerning the improvement of the output energy in oscillators using MEMS [ 5 ] that controlling MEMS in chaotic mode can be useful to increase the amplitude of the periodic oscillations of these systems. (hindawi.com)
so they are a popular choice to serve as the feedback sensing element in many different types of motion control systems. (analog.com)
The control interface can then be chosen from of vast variety of systems, from eye-movement monitoring for the severely paralyzed, to smartphone-based voice interfaces, residual muscular activity of the damaged limb, all the way to reading brainwave activity with a headset. (epfl.ch)
This approach is motivated by the need for fast and bio-plausible feedback control of musculoskeletal systems, and can have important implications in engineering, motor control, and biomechanics. (uwaterloo.ca)
Feedback-based mechanisms can be employed to monitor the performance of Multiprocessor Systems-on-Chips (MPSoCs) and steer the task execution even if the exact knowledge of the workload is unknown a priori. (whiterose.ac.uk)

We manipulate the framing of incentives (gains and losses) and the form of the incentives (financial, social), and measure their impact on decision-making performance (both in frequent and intermittent output feedback conditions). (scirp.org)
Relative to social rewards, financial rewards generally improved control performance, and a gains framing (financial, social) leading to better performance than a losses framing (financial, social). (scirp.org)
The direct velocity feedback (DVFB) control implemented here is shown to be very stable, however, so that high control gains could be applied. (soton.ac.uk)
It is also shown that if the feedback gains are equal for the two control channels, the control effect is the same as adding equal damping terms to the two modal responses of the mounted equipment. (soton.ac.uk)

The present work addresses the problem of chaos control in an electrostatic MEMS resonator by using an output-feedback control scheme. (hindawi.com)
This paper addresses the problem of chaos control in an electrostatic MEMS resonator with parametric uncertainties and constraints in the measure of its state. (hindawi.com)
Chaos control in MEMS is reported recently in [ 1 , 11 ]. (hindawi.com)
Nevertheless, the enhancement of oscillation amplitude for MEMS resonators by appropriate control techniques remains an interesting and open research subject. (hindawi.com)
There are some constraints that must be considered in a practical implementation of a chaos control scheme applied to MEMS. (hindawi.com)

In [ 1 ] a fuzzy control algorithm is applied to control the chaotic motion and track a sinusoidal orbit. (hindawi.com)
The ubiquitous proportional-integral-derivative (PID) control algorithm can foresee the future if it is configured or tuned to complement the behavior of the process. (controleng.com)

Feedback interventions to improve care are attractive because they are relatively cheap to widely implement. (bmj.com)

Welcome to the Angular feedback portal. (syncfusion.com)
If you have feedback on how to improve the Angular, we'd love to hear it! (syncfusion.com)

The two active arms receive different forms of prescribing safety data feedback, with rates of high-risk prescribing compared with a 'usual care' arm. (bmj.com)
On completion of the baseline survey, participants were either randomly selected to the intervention group to receive a personalized feedback report with self- help resources, or to a control group that received a basic feedback sheet with screening scores related to their mean daily sugar consumption, mental well-being, self-efficacy, and sugar craving. (auckland.ac.nz)
Feature papers are submitted upon individual invitation or recommendation by the scientific editors and must receive positive feedback from the reviewers. (mdpi.com)
This study aimed to evaluate whether a short and simple training improves the quality of feedback residents receive from their clinical supervisors in daily practice. (bvsalud.org)

Modifying the conventional hysteretic converter circuit's feedback network results in a predictable switching frequency with less variation relative to external components. (electronicdesign.com)
For predictable switching frequency operation within a desired range, the IC's comparator needs a reasonably clean and well-controlled triangular ramp voltage superimposed on the dc feedback voltage, which essentially matches the comparator's hysteresis. (electronicdesign.com)
Board layout is critical with any switching supply, and this is perhaps even more important with hysteretic controllers due to high sensitivity to ground and voltage feedback noise that can directly affect switching frequency. (electronicdesign.com)
found that increasing the frequency of output feedback regarding the return on investment decisions, though not informative of decision-quality in their task, unnecessarily focused participants' attention on the success of the outputs achieved, and to no good effect on their decision- making performance. (scirp.org)
They compared the impact on decision-making by varying the frequency of presentation of output feedback (every 6th trial, every 3rd trial, every trial) when participants were required to make decisions regarding retailing decisions on the amount of products to be sold prior to each selling period. (scirp.org)
The experimental results also show a global improvement in the vibration caused by the resonances of the base plate over the frequency range of control [0-200 Hz]. (soton.ac.uk)
The control effect decreases with frequency as a consequence of the increasing efficiency of the passive isolation. (soton.ac.uk)

When the comparator feedback voltage exceeds the internal reference voltage (V REF ) plus its hysteresis, the comparator output turns off the main power switch. (electronicdesign.com)
Then, when the feedback voltage drops below V REF minus V HYS , the power switch turns on and the cycle repeats itself. (electronicdesign.com)
Unfortunately, this feedback signal can vary significantly due to the input-supply voltage, output capacitance (C OUT ), C OUT equivalent series resistance (ESR), inductor value and board layout. (electronicdesign.com)
By controlling the voltage applied as the conductance varies it is possible to keep the voltage at a critical level for electromigration. (wikipedia.org)

There is an Arduino Mega that is used to control the LED strip around the body of the robot. (lu.se)

We analyze the problem of controlling the dilution rate in a chemostat to regulate the ratio between the concentrations of two microbial populations growing in continuous culture. (biorxiv.org)
Controlling the feedback of off-line flyback converters has often perplexed power engineers because it involves the continuous conduction mode (CCM) and discontinuous conduction mode (DCM) small signal models. (richtek.com)

Feedback control of active particles introduces the possibility to respond to external events or neighboring active particles by complex behavioral rules allowing a completely new approach to study the consequences of sensorial interactions in biological species. (nature.com)
Explore upcoming changes, share valuable feedback, and see our modernized approach to delivering health information. (cdc.gov)

In order to increase the amplitude of periodic oscillations of the device with a low energy consumption, we consider in the present work controlling the resonator in chaotic mode to stabilize an orbit which is part of the chaotic attractor. (hindawi.com)
PHWR, Periodic output feedback, Spatial Control. (actapress.com)

Overall, performance suffered under intermittent output feedback. (scirp.org)
They found that when output feedback (i.e. number of orders made, and the resulting profit/loss) was presented on every trial, participants adjusted their decisions frequently, which in turn led to poorer decision-making performance as compared to those experiencing less (intermittent) feedback. (scirp.org)

Finally, numerical simulations are carried out to confirm the validity of the developed control scheme and to demonstrate the effect of controlling orbits immersed in the chaotic attractor. (hindawi.com)

The scientists decided to pursue brainwave-control of the exoskeleton via an EEG headset that measures the users' brainwaves as they used the exoskeleton. (epfl.ch)

If the monitor is powered with the same amp used to run the main speakers, feedback problems will result. (galaxyaudio.com)
That, in turn, will send the main speakers into feedback. (galaxyaudio.com)

This functional definition of synergies results in a low-dimensional control space, in which every force in the operational space is accurately created by a unique combination of synergies. (uwaterloo.ca)

Feedback-controlled electromigration (FCE) is an experimental technique to investigate the phenomenon known as electromigration. (wikipedia.org)

Non- stationary environments are especially difficult to make decisions because we often face uncertainty regarding the source of change to the output, and this uncertainty is exacerbated when the output feedback itself is only experienced infrequently. (scirp.org)

You do not have to lose your hearing if you CAP ( control , avoid, and protect) the noise. (cdc.gov)

This analysis discriminates between different biological mechanisms to achieve a transient signal from a sustained TGF-b input, where one mechanism is to use a negative feedback to turn the signal off. (lu.se)

Problem of damping of an arbitrary number of linear oscillators under common bounded control is considered. (arxiv.org)

The developed framework is shown to control self-thermophoretic active particles in a heterogeneous ensemble selectively. (nature.com)

But they also noticed that, when the subjects were asked to control the hand-exoskeleton with their brainwaves, consistent same-side patterns also emerged in the brainwave data. (epfl.ch)
However, they make phonemic errors more often than control subjects do. (talkingbrains.org)

To eliminate the problem, the monitors should have their own volume control (like the HOT SPOT HS7), or be connected to a separate amp. (galaxyaudio.com)
Introduction and Problem Statement RFC 4585 [RFC4585] and RFC 5104 [RFC5104] specify a number of payload-specific feedback messages which a media receiver can use to inform a media sender of certain conditions, or make certain requests. (ietf.org)

Anatomy10

Chemicals and Drugs9

Analytical, Diagnostic and Therapeutic Techniques and Equipment13

Psychiatry and Psychology18

Phenomena and Processes29

Disciplines and Occupations2

Anthropology, Education, Sociology and Social Phenomena5

Technology, Industry, Agriculture1

Information Science13

Named Groups1

Health Care3

Centers for Diseas3

Cluster randomised contr1

Sensory6

Infection control1

Optimal control2

Loops2

Nonlinear1

Controller11

Time13

Relies2

Methods2

Audit3

Disinfection2

System19

Loop5

Trajectory1

Attainable1

Design4

Uncertain2

Intervention and control4

Toggle1

Systems5

Gains4

MEMS5

Algorithm2

Interventions1

Angular2

Receive4

Frequency7

Voltage4

Robot1

Continuous2

Approach2

Periodic2

Performance2

Demonstrate1

Measures1

Main2

Results1

Experimental1

Output feedback1

Noise1

Mechanisms1

Oscillators1

Framework1

Subjects2

Problem2