Diagnostic Test Calculator determine diagnostic test characteristics (sensitivity, specificity, likelihood ratios) and/or the post-test probability of disease given the pre-test probability and test characteristics.

Jun 5, 2024 — Polarized sunglass lenses reduce light glare and eyestrain. Because ... mean they are polarized too. Polarized lenses will have a label ...

Yes, a magnifying glass can make objects appear larger than they actually are by bending and magnifying the light rays that pass through it.

Description: An aspherical lens is a lens that is not spherical in order to combat spherical aberrations. This increases sharpness, especially at wider ...

MedCalc provides quick reference calculators for cardiology, drugs, fluid and electrolytes, obstetrics, pediatrics, pulmonary and renal functions.

Numerical aperture (NA) provides a good estimate of the maximum acceptance angle for most multimode fibers, as shown in Figure 1.

laservision designs and manufactures a complete line of laser safety products including glasses, barriers, signs and windows.

I'm looking for a 5mw laser pointer with a larger dispersion angle then usual. Something that would be fanning out more than a pointer.

DynaMed Calculators provide a series of calculators including medical equations, clinical criteria, decision trees, statistics calculators, units and dose convertors, etc. Click “Calculators” at the top of the menu bar to access.

Lexicomp provides over 100 calculators, such as 4T score and A-a Gradient. The Browse Category drop-down menu can be used to browse a specific subset of calculators.

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The optimal distance can vary depending on the strength of the magnifying glass, but typically it is best to hold it about 2-3 inches away from the object.

A magnifying glass typically has a single convex lens, while a microscope has multiple lenses and a more complex system for magnifying objects.

This rigid, shatter-proof acrylic Fresnel lens is ideal for optics activities where gathering light is the priority. Dimensions: 8.5 x 11 x 5/64 (21.6 cm ...

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Alejandro Fornell Muñoz. Is this you? Lens offers free profiles for all authors and inventors. Link your ORCID account to get started. ORCID · ImpactStory ...

History and Physical Exam Calculators provide calculators divided into symptom/disease pairings to help determine the likelihood of a patient having a disease based on information gathered during a history and physical evaluation.

Yes, if used incorrectly or with improper safety precautions, a magnifying glass can cause eye strain or even start a fire if focused on flammable materials for too long.

Magnifying Glass

Objectives are designed to image specimens either with air or a medium of higher refractive index between the front lens and the specimen. The field of view is ...

Micromedex Calculators include a wide range of calculators on adult and pediatric dosing as well as units convertors. Click “Calculators" at the top of the menu bar to access.

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EBM Statistics Calculators calculate the parameters of diagnostic test, prospective study, case-control study, and randomized control trial for evidence-based medicine.

Mar 14, 2019 — Yes ω0 can be zero. If you have a perfectly spherical mirror with a single particle lasing source inside, then by classical optics it will focus ...

With 1,000+ practice questions, the Verbal component of the Target Test Prep course gives you ample opportunity to hone your Verbal skills. ... Our revolutionary ...

ClinicalKey Calculators includes Drug Calculators, Clinical Criteria/Decision Trees Calculators, Medical Calculators and Unit Conversions Calculators.

Clinical Calculator 1 estimates the population prevalence, sensitivity, specificity, predictive values, and likelihood ratios from an observed sample.

Essential Evidence Plus offers hundreds of decision support tools and calculators to support clinical decision making. These tools help to estimate the likelihood of a diagnosis, calculate risk of disease, estimate a prognosis, or calculate a drug dose.

Diagnostic Test Calculators includes hundreds of diagnostic test calculators, divided into symptom/disease pairings, helping clinicians to choose the best diagnostic test and interpret the test results.