Those with previous falls, as well as those with gait or balance disorders, are most at risk. Risk factors. Risk factors for osteoporotic fracture can be split between nonmodifiable and (potentially) modifiable. In addition, osteoporosis is a recognized complication of specific diseases and disorders. Medication use is theoretically modifiable, although in many cases, the use of medication that increases osteoporosis risk may be unavoidable. Caffeine is not a risk factor for osteoporosis. It is more likely in females than males. Nonmodifiable
In fast frequency hopping type, one complete or fraction of data symbol is transmitted during the time between two frequency hops. Due to this, frequency hopping rate may exceed often compare to data bit rate in a binary sequence. In fast frequency hopping, time duration between two hops (Th or Tc as shown) <= data bit duration (Tb). This is depicted in the figure-2. â¨The fast frequency hopping provides frequency diversity at symbol level. This will benefit the transmitted signal against fading as well as narrowband jamming.
For high speed algorithmic trading, see high-frequency trading. HF's position in the electromagnetic spectrum. High frequency (HF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 MHz.It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters (ten to one hundred metres).Frequencies immediately below HF are denoted medium frequency (MF), while the next band of higher frequencies is known as the very high frequency (VHF) band.requencies immediately below HF are denoted medium frequency (MF), while the next band of higher frequencies is known as the very high frequency (VHF) band.