Diffraction refers to various phenomena which occur when a wave encounters an obstacle. In classical physics‚ the diffraction phenomenon is described as the apparent bending of waves around small obstacles and the spreading out of waves past small openings. Similar effects occur when a light wave travels through a medium with a varying refractive index‚ or a sound wave travels through one with varying acoustic impedance. Diffraction occurs with all waves‚ including sound waves‚ water waves‚ and electromagnetic
Premium Diffraction Light Electromagnetic radiation
structures the surround some tendons. Small amounts of synovial fluid can be found within these sheaths to act as a lubricant for the moving tendons. Large tendons do not contain synovial fluid. Tendons appear hyperechoic to surrounding anatomy on ultrasound. Sonography can be performed on tendons of the shoulder‚ elbow‚ hand and wrist‚ knee‚ foot and
Premium Tissues Muscle
Pregnancy and PCOS Everyone knows what pregnancy is‚ how it can affect the body over time‚ and that there are many factors that can affect the pregnancy. One thing that can affect the pregnancy that is little known about is Polycystic Ovarian Syndrome (PCOS). If someone tells you that they have PCOS‚ you think to yourself‚ what is PCOS? Not many people know what is it off the top of their head‚ but in all actuality 1 in 4 women of reproductive age have
Premium Pregnancy In vitro fertilisation Obesity
A critical appraisal of a published piece of research related to practice. Evidence Based Practice - HEN62029-5 Student number 10039687 Word count 3150 The following ssion of this assignment attempts to critically appraise the venUS III randomised control trial (RTC) published in the British Medical Journal. As a student/healthcare worker who is new to critical appraisal I am aware that I do not fully understand some of the calculations involved in reporting of findings‚ however Greenhalgh
Premium Evidence-based medicine Health care National Health Service
find themselves with ultimatum‚ have an abortion or move out‚ but that wasn’t a choice of mine at all. Once I heard my daughter’s heart beat and saw how she looked‚ I fell in love. Her ultrasounds were incredible‚ how clear she looked‚ how healthy she was. But not for long… One normal day I attended my ultrasound appointment I heard the worst news. My daughter had a pelvic kidney. I had no idea what that was and what can be caused by it so I asked as much questions as I could. They informed me that
Premium Childbirth Pregnancy
1982 the government received funds to open up the new hospital which was then named St. Croix Hospital and was changed to Juan F. Luis in 1994. They also asked us what we would like to be that has anything pertaining to working in the nursing‚ and ultrasound technician and so forth. After that we split into two groups. One group went with Ms. Toussaint and other classmates and I went with Ms. Montoute. The first place we went to learn about was the E.R (Emergency Room). And the head nurse (Donna JnBaptiste-Manning)
Premium Magnetic resonance imaging Cardiac arrest Medical imaging
Digestion Case Study State the Case: Twenty year old Mary reports to the emergency room with fever‚ severe pain concentrating at the right iliac region‚ moving to the umbilical region‚ nausea and the inability to eat without throwing up. Diagnose‚ treat and explain the condition to her mother. S.O.A.P. Subjective: The patient presents as a 20 year old female with a fever‚ severe abdominal that comes and goes‚ but usually last a few hours at a time. She also complains of nausea and the
Premium Gastroenterology Symptoms Medicine
Equation 1 ) Hence‚ ………………….……... ( Equation 2 ) Rearrange Equation 2 .………..………………... ( Equation 3 ) where natural frequency of the system‚ …..…….………..........……... ( Equation 4 ) APPARATUS Displacement measuring transducer and displacement measuring plate‚ spring‚ weights‚ loading rod. PROCEDURE Determine the stiffness of the spring The length of the unloaded spring was measured. A weight was inserted unto the loading rod (with plate)‚ then the loading rod was
Premium Weight Experiment Mass
HISTORY AND PHYSICAL EXAMINATION OR EMERGENCY DEPARTMENT TREATMENT RECORD Patient Name: Brenda C. Seggerman Patient ID: 903321 Date of Admission/Date of Arrival: 03/27/2014 Admitting/Attending Physician: Alex McClure‚ MD Admitting Diagnosis: Ectopic Pregnancy Chief Complaint: Lower abdominal pain HISTORY OF PRESENT ILLNESS: The patient states that she has been having vaginal bleeding‚ more like spotting‚ over the past month. She denies the chance of pregnancy‚ although she states
Premium Blood Surgery Menstrual cycle
A How would you act if you found out that you were about to lose someone you were close too because of a stupid disease? Chronic liver disease- is a disease process of the liver that involves a process of progressive destruction and regeneration to the liver. Personally I know it sucks because I’ve had too deal with it. It’s hard to watch someone you love and care about go through it the four stages of it and then end up dying at the end of it. Approximately 3.5 to 4.6 million are infected with
Premium English-language films Death Medical terms