Other infections can also cause stiff neck symptoms, such as meningococcal disease, an infection in the cervical spine. Any time a stiff neck is accompanied by a fever, it is advisable to seek immediate medical attention to check for these possibilities.ther infections can also cause stiff neck symptoms, such as meningococcal disease, an infection in the cervical spine. Any time a stiff neck is accompanied by a fever, it is advisable to seek immediate medical attention to check for these possibilities.
To prevent the formation of primer dimers, it is also important to ensure that the 3â ends are not complementary. 2.5 Distance between primers. The primers are designed so that the distance. from the end of F2 to the end of B2 (the region. amplified by the LAMP method) is between 120.
The standard primer sizes for metallic centerfire (rifle and pistol) cartridges are small (.175 diameter) and large (.210 diameter). The standard primer types are pistol, pistol magnum, rifle, and rifle magnum. Rifle primers use tougher cups than pistol primers because the firing pin blow of rifles is usually harder than the firing pin blow of pistols. Rifle primers also contain more priming compound than pistol primers, since rifle cartridges typically contain more powder than pistol cartridges.