Severe mechanical stress. Medical search. Frequent questions

Modern exhaust systems must withstand severe cyclic mechanical and thermal loads throughout the whole life cycle. (ac.ir)
Very deteriorated and brittle fibers may not be able to withstand the mechanical stress of this swelling, and may lose their structural stability. (conservation-wiki.com)
These cables are designed to provide high flexibility and have the capacity to withstand weather, oils/greases, mechanical and thermal stresses. (coreheavyduty.com)
Double crimped hoses designed to withstand the most severe thermal and mechanical stresses found in endothermic engine exhaust systems. (abtrasmissioni.it)
HO7RN-F Cable are designed to provide high flexibility and have the capacity to withstand weather, oils/greases and mechanical/ thermal stresses. (armouredcable.net)

The solution needed to be resistant to high temperature variations, vibrations and mechanical shocks, but also mud, break dust, wet with dew and salt spray. (staubli.com)
A sufficient overlap of the contact parts will ensure that even under severe vibration and temperature ﬂuctuations the contact is never interrupted. (staubli.com)
Moreover, large-scale migration of the interfaces between γ- γ'-phases in Ni superalloys occur in response to temperature [9] and mechanical load cycles [10] as a result of the coupling between local chemistry (via point-defect diffusion) and long-range stress. (cecam.org)
Thermal fatigue (TMF) of the engine components easily happens due to excessive temperature gradient and thermal stress. (ac.ir)
The numerical results showed that the temperature and thermal stresses have the most critical values at the confluence region of the exhaust manifolds. (ac.ir)
Rock mechanical properties also change with temperature, pore pressure, stresses and rock deformation. (onepetro.org)
At turn on, the rapid temperature rise and mechanical stress from the inrush can break the filament. (electrical-engineering-portal.com)

As a critical input in determining the maximum steam injection pressure, caprock integrity assessment in thermal operations has become increasingly important because of the potential severe consequences of a caprock integrity breach on the environment, safety and project economics. (onepetro.org)
Because of the complex thermo-poro-mechanical coupling of the thermal stimulation process, numerical simulation is required in evaluating caprock integrity. (onepetro.org)
Thermal stimulation of heavy oil reservoirs significantly alters the pore pressure and in-situ stresses not only in the reservoir, but also in the caprock. (onepetro.org)
Through geomechanical and fluid flow coupled simulation of a steam-assisted gravity drainage (SAGD) case using commercially available reservoir simulator and finite element geomechanical simulator, this paper discusses the physical processes that occur in thermal operations, including stress and strain change, rock volume change, and rock failure, in both the reservoir and the caprock. (onepetro.org)

Ground-glass bilateral pulmonary infiltrates on computed tomography (CT) and positive oropharyngeal swabs for severe acute respiratory-syndrome-coronavirus-2 confirmed COVID-19 pneumonia. (ersjournals.com)
In times of acute stress, our rational brain circuits (centered in the prefrontal cortex) rapidly shut down and our more primitive ones (based in the amygdala and basal ganglia) take over. (nationalgeographic.com)
The RV transcriptomic signature was measured over several time points, ranging from hours to weeks after an acute increase in mechanical stress, and was found to be highly dependent on the severity of the initial insult. (myjournals.org)
This is the first edition of this document for novel coronavirus, an adaption of WHO Clinical management of severe acute respiratory infection when MERS-CoV infection is suspected publication (2019). (who.int)
This document is intended for clinicians taking care of hospitalised adult and paediatric patients with severe acute respiratory infection (SARI) when 2019-nCoV infection is suspected. (who.int)
a history of travel to or residence in the city of Wuhan, Hubei Province, China in the 14 days prior to symptom onset, or · patient is a health care worker who has been working in an environment where severe acute respiratory infections of unknown etiology are being cared for. (who.int)
Although some MIS-C patients have typical manifestations, others appear to have substantial overlap with acute severe COVID-19 infection in other -- and other hyper inflammatory conditions such as Kawasaki disease and toxic shock syndrome. (cdc.gov)

The primary outcome of the study was 4-week survival without invasive mechanical ventilation (IMV). (ersjournals.com)
Because intubation and mechanical ventilation alter first-line patient defenses, they greatly increase the risk for nosocomial bacterial pneumonia. (cdc.gov)
The Drinker and Shaw tank-type ventilator of 1929 was one of the first negative-pressure machines widely used for mechanical ventilation. (medscape.com)
Intensive use of positive-pressure mechanical ventilation gained momentum during the polio epidemic in Scandinavia and the United States in the early 1950s. (medscape.com)
Many factors affect the decision to begin mechanical ventilation. (medscape.com)
Because no mode of mechanical ventilation can cure a disease process, the patient should have a correctable underlying problem that can be resolved with the support of mechanical ventilation. (medscape.com)
Anxiety was also associated with increased risk for intensive care unit admission, invasive mechanical ventilation, and death. (cdc.gov)
Outcomes were intensive care unit (ICU) admission, invasive mechanical ventilation (IMV), 30-day same-hospital readmission (all-cause), in-hospital death (all-cause), and LOS. (cdc.gov)

B-type natriuretic peptide (BNP) may be a good biomarker to risk-stratify patients who have asymptomatic severe aortic stenosis and no left ventricular dysfunction. (medpagetoday.com)
Until now, TAVR use has been restricted to patients with severe aortic stenosis at high/intermediate surgical risk, but these new studies open the procedure up to the much larger population of patients at low surgical risk. (medscape.com)

Mechanical properties and deformation behaviour of ultra-fine grained nickel. (science24.com)
Mechanical properties and deformation behaviour of ultra-fine grained (UFG) Ni subjected to severe plastic deformation (SPD) are investigated. (science24.com)
Swelling of fibers may result in mechanical stress, such as planar deformation. (conservation-wiki.com)
For example, early rayons swell dramatically when wet, resulting in severe fiber deformation. (conservation-wiki.com)
Arthritis mutilans involves severe inflammation that damages the joints in the hands and feet, resulting in deformation and movement problems. (medlineplus.gov)

2 weeks after the outbreak of COVID-19 in our region (Liguria, Italy), we systematically started using CPAP in patients with moderate-to-severe AHRF, following an ad hoc algorithm. (ersjournals.com)
Surgical indications for cervical spondylotic myelopathy remain somewhat controversial, but most clinicians recommend operative therapy over conservative therapy for moderate-to-severe myelopathy. (medscape.com)
Echocardiogram showed moderate to severe mitral valve regurgitation. (asn-online.org)

Our objective is to evaluate mechanisms of fatigue in bulk silicon, a material that has been traditionally considered to be immune to degradation of mechanical properties in cyclic loading. (nist.gov)

Herniated discs and severe disc degeneration inevitably change the biomechanical forces on tissues and structures in and near the back. (berkeley.edu)
We want to understand the mechanical function of these tissues and how they change with age, degeneration and injury," O'Connell says. (berkeley.edu)
As disk degeneration occurs, mechanical stresses result in osteophytic bars, which form along the ventral aspect of the spinal canal. (medscape.com)

Shear bands propagated along GBs that are parallel to the plane of maximal shear stress. (science24.com)
Recurrent, or residual valvular regurgitation can cause serious mechanical hemolysis as regurgitant flow creates high shear stress that results in fragmentation of red blood cells. (asn-online.org)

severe manifestations included hemophagocytic lymphohistiocytosis, myocarditis, and septic shock. (cdc.gov)
Early identification of those with severe manifestations (see Table 2) allows for immediate optimized supportive care treatments and safe, rapid admission (or referral) to intensive care unit according to institutional or national protocols. (who.int)

Because telogen effluvium is triggered by stress on the body, it may be that patients who were hospitalized with COVID or placed on a mechanical ventilator experience more shedding than patients with mild cases, she added. (go.com)
Any joint in the body may be affected in these forms of the disorder, and symptoms range from mild to severe. (medlineplus.gov)

Experiments on explanted hearts suggested a trigger for coronary artery inflammation: Where flow is perturbed, hemodynamic stress results in local mechanical injury allowing the entry of blood cells into the arterial intima, triggering inflammation-driven atherogenesis . (medpagetoday.com)

A MUC5B Gene Polymorphism, rs35705950-T Confers Protective Effects Against COVID-19 Hospitalization but not Severe Disease or Mortality. (cdc.gov)
Persons with mental health conditions (MHCs) might be at higher risk for severe COVID-19 outcomes after hospitalization because of poor access to care and a higher incidence of underlying conditions. (cdc.gov)

This condition can be an additional contributing source of severe anterior cord compression. (medscape.com)
Another source of severe overvoltages is primary or secondary conductors contacting higher voltage lines. (electrical-engineering-portal.com)

Even the mechanical stresses caused by treating herniated disc disease is poorly understood. (berkeley.edu)
This report presents the ODISSEY European Consensus Group recommended algorithm for DED evaluation, which facilitates diagnosis of severe disease even in the event of discordance between signs and symptoms. (bmj.com)
There are relatively few effective treatments for DED, especially for severe disease. (bmj.com)
Protect their roots from pests, disease, and mechanical injury. (gardeningknowhow.com)
Additional testing was performed at the California Department of Public Health Viral and Rickettsial Disease Laboratory for severe or fatal cases, and those in which clinical criteria were met but antibody titers were below case definition thresholds. (cdc.gov)
Stress can be one of the triggers of disease systemic and oral diseases in different professionals. (bvsalud.org)
Conclusions: Based on the results of this study it may be concluded that the nursing profession can lead to emotional stress, although no significant association between stress and disease/psychosomatic and oral symptoms was found. (bvsalud.org)

The panel agreed that following confirmed DED diagnosis, just two criteria, symptom-based assessment and corneal fluorescein staining were sufficient to diagnose the presence of severe DED in the majority of patients. (bmj.com)
However, she added that the causes of hair loss in patients with severe COVID could be multifactorial, linked to the medications they took or the procedures they underwent. (go.com)
Progression to lung fibrosis in severe COVID-19 patients: A morphological and transcriptomic study in postmortem samples. (cdc.gov)
Members of a WHO global network of clinicians, and clinicians who have treated SARS, MERS or severe influenza patients have reviewed the recommendations (see Acknowledgements). (who.int)
Emotional stress in nurses due to the strain of everyday life can lead to risk of death for patients at their care, affecting this group of professionals not only psychologically but also generating serious health problems 4,11-12 . (bvsalud.org)
Relative contraindications include young age, because younger patients tend to put high-demand stress on the elbow joint by participating in sports and other activities, and diabetes and smoking, because either of these conditions might compromise wound healing . (medscape.com)

Application conditions, humidity, or mechanical stress may be among the causes. (xlinkcomposites.com)

the latter includes severe pneumonia, ARDS, sepsis and septic shock. (who.int)

The response of many materials to external loads is not directly determined by their bulk mechanical properties, but is instead mediated by chemical and structural transformations, often nucleating at defects or interfaces, and involving reactions with environmental chemical species. (cecam.org)

A wide range of soundproofed, carbon-steel rain flaps, assembled with weather resistant polyamide bushings and stainless steel rivets for greater resistance to high temperatures and mechanical stresses. (abtrasmissioni.it)

However, the members of the scientific community interested in modelling mechanical properties are often not experts in modelling the materials' bulk and surface chemistry, and its coupling with externally imposed compression and tension. (cecam.org)

Symptoms include sudden, severe headache, usually. (msdmanuals.com)
Nurses filled out the Inventory of Stress Symptoms for Adults (ISSL) and questionnaire of diseases/psychosomatic symptoms. (bvsalud.org)

Risk factors for neck and upper extremity musculoskeletal disorders include repetitive and forceful motions, mechanical stress , static or awkward postures, local vibrations, and psychosocial factors originating from personality factors interacting with the way work is organized. (cdc.gov)

Residual Stress Analysis on Welded Joints by Means of Numerical S. (intechopen.com)
The intensity of the residual singular stress distribution can be quantified by the residual notch stress intensity factor (R-NSIF), which might be a useful stress parameter to include in local approaches for fatigue strength assessments of welded joints. (intechopen.com)
Being overweight places more mechanical stress on your joints, which can cause more pain and aggravate the fibromyalgia," Dr. Arnold says. (fibrocommunity.com)
Mechanical stress on the joints, such as occurs in movement, may result in an excessive inflammatory response in people with psoriatic arthritis. (medlineplus.gov)

The mental or psychological stress occurs daily in our lives. (bvsalud.org)

It has been shown that the PSM can successfully be used to estimate R-NSIFs values, provided that the stress redistribution induced by plasticity in the zone very close to the notch tip is negligible. (intechopen.com)
A study of ground behavior, reinforcement performance and stress redistribution looked at a longwall tailgate under severe horizontal stress. (cdc.gov)

Infected trees can try to be saved by pruning off any infected roots if the infection is not too severe. (gardeningknowhow.com)

Treatments for erectile dysfunction currently include oral medications, mechanical devices, and psychological counseling (if stress is the sole cause of the condition). (todaysdietitian.com)
Understanding the biomechanics of healthy and damaged discs could lead to new treatments that reduce physical stress. (berkeley.edu)

With a 15° departure angle of the plug to the vertical, mechanical stress of the cable is significantly reduced and the connector operation is extremely simpliﬁed. (staubli.com)
From the 1980s, the number of jobs involving emotional stress increased significantly, possibly because of the very conditions of life and livelihood in big cities, but with its effects also being extended to smaller population groups, sometimes even specific as seen among students in test periods 3-5 . (bvsalud.org)

Accurate characterization of reservoir and caprock mechanical properties and constitutive behavior is critically important in caprock integrity analysis. (onepetro.org)

This workshop aims to bring together experts from all the relevant modelling fields to discuss materials science and engineering aspects of tribology, fracture mechanics, and plasticity that involve chemical and structural modifications induced by mechanical loading. (cecam.org)
Our underlying assumption is that multiscale modelling of processes originating within the "process zone" of (point-like) asperity contacts, (1D) crack tips, or (2D) alloy interfaces is necessary to fully understand wear, stress corrosion, and creep/plasticity, and could suggest new engineering approaches for their control. (cecam.org)

Under the severe stress of cornering at full brake from a 100km/h straight run, the high-end electric touring cars of today that can manage this previously impossible situation better than others by working both sides of the machine in unison for optimal roll characteristics and improved control stability, produce the ultimate result: faster times. (rcmart.com)
The new mechanical design makes lenses maintain their high optical performance despite the shocks and vibrations that unavoidably occur in industrial imaging systems. (automate.org)

We present contrary evidence by demonstrating severe fatigue in macroscale specimens. (nist.gov)
Using mechanical testing methods, we have been able to demonstrate the existence of strong fatigue effects in silicon. (nist.gov)
Then Ansys Workbench software was used to determine stress and fatigue life based on Morrow and Smith-Watson-Topper (SWT) approaches. (ac.ir)

In order to calculate the residual stress fields by means of welding process simulations, the mesh adopted in numerical models has necessarily to be very fine. (intechopen.com)

Fleaborne typhus, a vectorborne zoonosis caused by Rickettsia typhi , is a moderately severe but rarely fatal illness. (cdc.gov)

Because of light diffraction phenomena in the photoresist coating, errors occur in the pattern transfer process, producing changes in the circuit dimensions that might affect the strain and stress properties (such as conductivity and resistivity) of conductors. (teachengineering.org)
As a result, a specimen's macroscopic mechanical response will in fact depend on the properties of the transformed material, the structure of which is typically unknown and very often difficult to characterize. (cecam.org)

Among these, the peak stress method has been proposed to estimate the notch stress intensity factors (NSIFs) at sharp V-notches, using coarse finite element patterns. (intechopen.com)
It has been postulated that psychological factors may be more important than physical factors for LBP severe enough to result in filing a workers' compensation claim for LBP. (cdc.gov)
Nurses, bank employees and police officers as well as entrepreneurs are more exposed to factors that generate this kind of stress, which usually leads to a great intake of coffee, alcohol and tobacco. (bvsalud.org)

The level of stress in level II (resistance) and III (exhaustion) was observed in 51.3% of the nurses. (bvsalud.org)

After the stress exposure, volunteers read statements about a fictional character and saw a picture of the person's face. (nationalgeographic.com)

To create physiological stress, the researchers asked volunteers to plunge their forearms into ice water for three minutes. (nationalgeographic.com)
Exercise inhibits cancer: the mechanosensitive state of… Surprisingly, researchers find that tumor cells are sensitive to mechanical stresses. (atlasofscience.org)

This study analyzed microarray data of right ventricular (RV) tissue from rats exposed to pulmonary embolism to understand the initial dynamic transcriptional response to mechanical stress and compare it with experimental pulmonary hypertension (PH) models. (myjournals.org)

In the new study, now in press in Biological Psychology , Kubota and her colleagues found another factor that pushes people toward the FAE: stress. (nationalgeographic.com)

This makes it perfect for use on worksites and outdoors given that the cable is mechanical and chemical-resistant. (armouredcable.net)

In this scenario, the use of methods aimed at reducing the computational effort to estimate local stresses and strains in welded structures can be effective. (intechopen.com)

A study of the loading characteristics of mechanical bolts (stiffness and capacity) installed in coal ribs at five underground coal mines. (cdc.gov)

Such runaway situations expose the unit to severe mechanical stress and set the dimensioning constrains of many components. (scirp.org)

This group convened to establish a clear and practical algorithm for evaluation and diagnosis of severe DED. (bmj.com)

The results of this project will have far-reaching implications concerning the reliability of silicon in applications subject to periodic mechanical stresses. (nist.gov)
Results indicate that the new system has considerably improved the lateral stability of the vehicle during road transportation and also noticeably decreased the stress on the side and cross members. (ac.ir)

An understanding of the geologic and stress conditions which lead to roof falls is necessary to assess the risk of failure and to design roof reinforcement to improve stability. (cdc.gov)

Applications where vibratory, torsional or alternating stresses approach the grades' static limits are NOT recommended. (pmpa.org)
These steels are not recommended for applications where severe cold work follows machining. (pmpa.org)

Frequent hot northerly airflows also occur during January-March which have a strong desiccating effect on the alpine soils, placing the plants under transpirational stress. (wikipedia.org)

More research is needed to understand what puts a patient at risk of more severe hair shedding, Young stated. (go.com)

Mechanical devices include pumps or implants that physically pump blood into the penis, causing an erection. (todaysdietitian.com)

Making progress here will require coupling chemical accuracy to long-range stress fields. (cecam.org)

This state of nickel possesses significant ultimate tensile stress of 1270 MPa. (science24.com)
There was no significant association between the stress and psychosomatic and oral variables. (bvsalud.org)

Anatomy41

Organisms13

Diseases9

Chemicals and Drugs35

Analytical, Diagnostic and Therapeutic Techniques and Equipment27

Psychiatry and Psychology2

Phenomena and Processes48

Disciplines and Occupations6

Technology, Industry, Agriculture2

Information Science3

Health Care1

Withstand5

Temperature7

Thermal4

Acute7

Ventilation8

Aortic stenosis2

Deformation5

Moderate-to-severe3

Cyclic1

Degeneration3

Shear stress2

Manifestations2

Mild2

Inflammation1

Hospitalization2

Source of severe2

Disease7

Patients6

Humidity1

Pneumonia1

Loads1

Temperatures1

Bulk1

Symptoms2

Repetitive1

Joints4

Occurs1

Redistribution2

Infection1

Treatments2

Significantly2

Behavior1

Plasticity2

High2

Fatigue3

Numerical1

Illness1

Properties2

Factors3

Resistance1

Exposure1

Researchers2

Hypertension1

Found1

Resistant1

Local1

Study1

Situations1

Algorithm1

Results2

Conditions1

Applications2

Occur1

Risk1

Include1

Long1

Significant2