In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

Q: Question: In the compression process occurs: 
 Options:  <0> An aggregation of the powder to be compressed. <1> A decrease in porosity. <2> A decrease in interparticular contact. <3> An increase in porosity. <4> An unpacking of the particles.

A: pharmacology
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Q: Question: A 60-year-old patient who came to the hospital's emergency department due to a left chest pain, cough and yellowish sputum, a temperature of 38.7ºC, a sensation of shortness of breath. Artificial saturation of 02 80%. Hemogram leukocytes 12000 / uL with 86% polymorphonuclear cells. Chest x-ray: alveolar infiltrate on the left base with air bronchogram. On suspicion of pneumonia, pneumococcal Ag is made in urine, which is positive and sputum culture is sent to the Microbiology service. Which empirical antibiotic treatment of the indicated ones is more correct in expectation of microbiological results? 
 Options:  <0> Ceftazidime <1> Clarithromycin <2> Azithromycin <3> Ceftriaxone <4> Doxycycline

A: medicine
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Q: Question: The use of monolithic columns and continuous beds in liquid chromatography is already very common. To this end: 
 Options:  <0> Microporous membranes are used so that the interaction between a solute and the matrix takes place in the final part of the pore. <1> A separation medium is introduced with a greater degree of continuity than the stationary particle phase so that the mobile phase is forced to traverse the large pores of the medium, improving mass transport. <2> Monodisperse particles are used as a stationary phase in order to improve mass transfer. <3> Flexible organic gels are used from microporous polymers in order to decrease the flow rates. <4> Columns filled with small particles of polymerized silica are used.

A:
chemistry
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