What is mica used for in radiology?
Mica is mechanically stable in micrometer-thin sheets which are relatively transparent to radiation (such as alpha particles) while being impervious to most gases. It is therefore used as a window on radiation detectors such as Geiger–Müller tubes.
What is the role of mica in Ayurvedic medicine?
Ayurveda, the Hindu system of ancient medicine prevalent in India, includes the purification and processing of mica in preparing Abhraka bhasma, which is claimed as a treatment for diseases of the respiratory and digestive tracts. Mica dust in the workplace is regarded as a hazardous substance for respiratory exposure above certain concentrations.
What is the mica treatment program?
The Mentally Ill Chemical Abuse (MICA) Treatment Program Description: Psychosocial/Psychiatric Assessment, Medication Evaluation and Monitoring, Drug Screening, 1-on-1 Counseling, Education, Case Coordination & Referral to Self-help Groups in the Community
What is Phlogopite mica used for?
Phlogopite mica remains stable at higher temperatures (to 900 °C (1,650 °F)) and is used in applications in which a combination of high-heat stability and electrical properties is required. Muscovite and phlogopite are used in sheet and ground forms.
What is Mica treatment?
Program Goals Key to the treatment of MICA patients in MTCs is the community method of treatment and the use of peer self-help. The program is adapted for offenders with mental health disorders by making it more flexible, more personalized, and less intensive.
What does Mica mean in mental health?
Portage's Mentally Ill Chemical Abusers (MICA) Program is a residential drug addiction rehabilitation program for men and women suffering from both mental illness (primarily schizophrenia) and substance abuse, treating the two disorders as well as their interaction.
What is a mica patient?
MICA is a medical and public health acronym used to describe people who are Mentally Ill Chemically Addicted (or Mentally Ill Chemical Abusers). The number of individuals with mental illness and chemical dependence who are living with HIV has increased exponentially in recent years.
What is mica used for?
Mica is used in decorative coatings on wallpaper, concrete, stucco, and tile surfaces . It also is used as an ingredient in flux coatings on welding rods, in some special greases, and as coatings for core and mold release compounds, facing agents, and mold washes in foundry applications.
What are the properties of mica?
The crystalline structure of mica forms layers that can be split or delaminated into thin sheets usually causing foliation in rocks. These sheets are chemically inert, dielectric, elastic , flexible, hydrophilic, insulating , lightweight, platy, reflective, refractive, resilient, and range in opacity from transparent to opaque. Mica is stable when exposed to electricity, light, moisture, and extreme temperatures. It has superior electrical properties as an insulator and as a dielectric, and can support an electrostatic field while dissipating minimal energy in the form of heat; it can be split very thin (0.025 to 0.125 millimeters or thinner) while maintaining its electrical properties, has a high dielectric breakdown, is thermally stable to 500 °C (932 °F), and is resistant to corona discharge. Muscovite, the principal mica used by the electrical industry, is used in capacitors that are ideal for high frequency and radio frequency. Phlogopite mica remains stable at higher temperatures (to 900 °C (1,650 °F)) and is used in applications in which a combination of high-heat stability and electrical properties is required. Muscovite and phlogopite are used in sheet and ground forms.
How much is mica per kilogram?
Sheet mica prices vary with grade and can range from less than $1 per kilogram for low-quality mica to more than $2,000 per kilogram for the highest quality. In Madagascar and India, it is also mined artisanally, in poor working conditions and with the help of child labour .
How much mica is dangerous?
At levels of 1,500 mg/m 3, mica is immediately dangerous to life and health.
What is dry ground mica used for?
The leading use of dry-ground mica in the US is in the joint compound for filling and finishing seams and blemishes in gypsum wallboard ( drywall ). The mica acts as a filler and extender, provides a smooth consistency, improves the workability of the compound, and provides resistance to cracking. In 2008, joint compound accounted for 54% of dry-ground mica consumption. In the paint industry, ground mica is used as a pigment extender that also facilitates suspension, reduces chalking, prevents shrinking and shearing of the paint film, increases the resistance of the paint film to water penetration and weathering and brightens the tone of colored pigments. Mica also promotes paint adhesion in aqueous and oleoresinous formulations. Consumption of dry-ground mica in paint, the second-ranked use, accounted for 22% of the dry-ground mica used in 2008.
How much mica is allowed in the workplace?
The Occupational Safety and Health Administration (OSHA) has set the legal limit ( permissible exposure limit) for mica exposure in the workplace as 20 million parts per cubic foot (706,720,000 parts per cubic meter) over an 8-hour workday.
Why are mica sheets used in boilers?
Thin transparent sheets of mica were used for peepholes in boilers, lanterns, stoves, and kerosene heaters because they were less likely to shatter than glass when exposed to extreme temperature gradients. Such peepholes were also used in " isinglass curtains" in horse-drawn carriages and early 20th-century cars.
What is diagnostic process?
The committee concluded that the diagnostic process is a complex, patient-centered, collaborative activity that involves information gathering and clinical reasoning with the goal of determining a patient's health problem.
Why is time important in diagnostics?
Time. Of major importance in the diagnostic process is the element of time. Most diseases evolve over time, and there can be a delay between the onset of disease and the onset of a patient's symptoms; time can also elapse before a patient's symptoms are recognized as a specific diagnosis (Zwaan and Singh, 2015).
What is clinical reasoning?
Clinical reasoning is “the cognitive process that is necessary to evaluate and manage a patient's medical problems ” (Barrows, 1980, p. 19).
What are the four types of information gathering activities in the diagnostic process?
The committee identified four types of information-gathering activities in the diagnostic process: taking a clinical history and interview; performing a physical exam; obtaining diagnostic testing; and sending a patient for referrals or consultations.
What is the purpose of a clinical history interview?
Performing a clinical history and interview, conducting a physical exam, performing diagnostic testing, and referring or consulting with other clinicians are all ways of accumulating information that may be relevant to understanding a patient's health problem.
Why does diagnosis matter?
Why Your Diagnosis Matters. Put simply, your diagnosis should direct the course of treatment. While making general lifestyle changes and talking about your problems can aid in treating just about any mental health condition, this alone is not enough. Every mental health disorder has its own set of treatment protocols.
Why do clinicians rush through diagnostic interviews?
Astute clinicians engage in careful diagnostic tactics to prevent such misdiagnosis, but some clinicians rush through diagnostic interviews and assume that, because depression is common, it's the most likely option.
Can mental health diagnoses be easy?
Everyone hopes there will someday be a time when mental health diagnoses are as easy as diagnosing a bacterial infection, but that day may never come. And until it does, clinicians and their patients must work together to get the best diagnosis possible.
Can bipolar disorder be misdiagnosed?
Sometimes misdiagnosis can lead to serious problems. Bipolar disorder, particularly in its early stages, can look a lot like major depressive disorder. Among people with bipolar, though, antidepressants can spur manic episodes and do little to treat the condition.