The study materials can be categorized to three types.
The contributions found in this special issue can be categorized to three main aspects of microphone array processing: (i) microphone array design based on eigenmode decomposition [1, 4]; (ii) multichannel processing methods [2, 5]; and (iii) source localisation [3, 6].
Based on the data sources utilized, these studies can be categorized to eight groups, as shown in Table 1.
The continuum of CRP concentrations was categorized to two groups: < 3.0 mg/L and ≥ 3.0 mg/L.
Education was categorized to three groups; Illiterate, under diploma and higher than diploma.
Marital status was categorized to three groups: 1) married, 2) divorced, separated, or widowed, and 3) single.
Using Blast2GO suite, 13,705 sequences (31%) were categorized to three different GO trees (biological process, cellular component and molecular function).
According to the external diameter, arterials were categorized to three groups as diameter between 25 50 μm, 51 100 μm, and 101 500 μm.
The teacher's perspective has been categorized to three categories by combing the disagree/agree and strongly disagree/agree responses together for the sake of simplicity.
Multidrug efflux transporters, at present, are categorized to five families in terms of their primary structure and particular energy-coupling mode.
