During a radiation emergency, the Centers for Disease Control and Prevention (CDC) may recommend you stay inside your home rather than evacuate. This is because the walls of your home can actually block some of the harmful radiation. The safest room in the house is the one with the least ...
A shorter half-life will generate a larger activity (which means more decay per unit of time). Intuitively, this should seem correct: if something is decaying more rapidly (i.e., a shorter half-life), you should observe more disintegrations per second. Another term that is commonly ...
This occasionally happens in patients with locally advanced head and neck cancer as they need to stay immobilized in a tight 5-point thermoplastic mask for over 30 min, or with bulky bone metastases. Our policy is to prescribe these patients potent analgesics to provide pain relief. Moreover, ...
NASA research has uncovered pockets of airborn radiation that could be dangerous to flyers Although flying through a few of these pockets of radiation probably won’t increase health risks, there is concern about their effects over time. W. Kent Tobiska, the president of Space Environment Technolo...
apeople can stay angry for years aout a small problem 人们能停留恼怒多年来anout一个小问题[translate] aerror addr 错误地址[translate] a明天就要考试,为什么我现在一点都不紧张呢。虽然我很害怕我会考不好。今天中午我的爸爸妈妈来学校看我和我弟弟。他们给我们带来了好多好吃的,还说让我们好好考。 Will...
State-transition diagram for each of the groups over time intervals. Patients in a failure-free state can either stay in failure-free state, experience progression (progressive disease), or die (death). After progression, patients can either remain progressive or die. Death is the absorbing ...
time during the solar cycle, and duration in deep space during transit. NASA has aggregated several Mars mission scenarios, known as design reference missions (DRMs), which span from short transit times in deep space with short duration stays on the Martian surface to much longer missions that ...
Objective: To assess survival and postoperative complications in patients with stage IB, IIA, and IIB bulky, cervical cancer treated with radiation therapy followed by hysterectomy. Study design: A retrospective chart review of patients treated with radiation therapy followed by hysterectomy for early st...
Radiotherapy is a mainstay in the treatment of head and neck squamous cell cancer (HNSCC) but is often accompanied by acute and chronic side effects [1]. One of the most prominent treatment sequelae is xerostomia with a significant impact on self-reported quality of life [2]. It has long...
Mean operative times were 165 minutes (range, 106–264 minutes), and hospital stay averaged 4.6 days (range, 3–7 days). Residual disease was found in 7 patients (29.2%). There were 7 early postoperative complications (29%) and 8 late complications (33.3%; 1—rectovaginal fistula; 1—...