Stereotactic radiosurgery (SRS) and immune checkpoint inhibitors (ICI) are increasingly used to treat brain metastases, however there is a paucity of prospective data on the effectiveness of these treatments in terms of cancer control.
Data from patients treated with SRS for non-small cell lung cancer (NSCLC) and melanoma brain metastases at a single facility from May 2008 to January 2017 were retrospectively examined. The impact of concurrent ICI within 30, 60, or 90 days of ICI administration on local control and remote in-brain control is examined using a parametric proportional hazard model. The regression model takes into account other patient and lesion characteristics as covariates and makes adjustments.
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<span>A cold-tolerant and salt-tolerant organism would likely be found in which part of the ocean. </span>The organism may be located in a tropical or subtropical location.
The answer would be D)Surface-Mixed Zone.
<u>Answer:</u>
Cancer cells attached to organs.
<u>Explanation:</u>
The cells which have lost their ability to divide in a controlled manner are categorized as cancer cells.
Cancer cells undergo the process of cell division uncontrollably without stopping which results in the development of cancerous tissues within the body.
Moreover, these cells can form in any of the organs of the body to which several reasons are associated for being responsible for the formation of these cells.
A
CO₂ is the waste product of respiration of cells. Oxygen, on the other hand, is required in cellular respiration. Therefore at the alveolar in the lungs of an organism, CO₂ will be expelled while O₂ will be taken in.
Explanation:
This occurs passively due to the diffusion gradient, CO₂ usually has a higher concentration in the blood and lower concentration in alveoli hence this gas diffuses from the bloodstream into the lungs. On the other hand, oxygen is higher in concentration in the alveoli than in the blood capillaries hence difuses into the blood and taken to the cell for respiration. The CO₂ in the lungs is then expelled through exhalation of the lungs.
Learn More:
For more on gaseous exchange in the lungs check out;
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The answer is anaphase.
Speaking of mitosis, which is a cell division of a single cell into two identical daughter cells, it consists of 4 phases - prophase, metaphase, anaphase, and telophase and cytokinesis. Chromatids are present only in metaphase and anaphase. During metaphase, sister chromatids join together. During anaphase, sister chromatids separate from each other to the opposite sides of the cell.