Abstract: A device for removing unwanted objects from cut tobacco in a cut tobacco production line is disclosed, which includes: a raw cut tobacco feeding and conveying unit (N1), a heavy unwanted object removal unit (N2), a cut tobacco dispersion and recovery unit (N3), a moderate unwanted object removal unit (N4), a cut tobacco humidification unit (N5) and a light unwanted object removal unit (N6). An unwanted object removal method using the cut tobacco unwanted object removal device is also disclosed. The device and method of the disclosure can effectively remove unwanted objects from cut tobacco.

Abstract: The ends of cell-free DNA fragments may be used for analysis of a biological sample. In some embodiments, DNA from a urine sample may be analyzed. Cell-free DNA fragments often include jagged ends, where one end of one strand of double-stranded DNA extends beyond the other end of the other strand. The length and amount of these jagged ends may be used to determine a level of a condition of an individual. The density of ends of fragments in certain regions may also be used in classifying the level of a condition. Additionally, DNA fragments may show a periodic pattern with the amount of DNA fragments corresponding to a length of the overhang. The periodicity may be analyzed to determine properties of a biological sample. Jagged ends may also be analyzed with a technique that avoids trimming overhanging 3? ends of a double-stranded DNA.

Abstract: Embodiments of this application provide a bullet screen display method and an electronic device, and relate to the field of multimedia technologies, to resolve a prior-art problem that bullet screen content causes interference to a user, thereby improving user experience. The method includes: determining an object display area based on a target display object in a display image, where the target display object is located in the object display area; determining a bullet screen display area based on the object display area, where the bullet screen display area and the object display area have no intersection; and displaying bullet screen content in the bullet screen display area.

Abstract: The present invention relates to novel treatments for schizophrenia, based on the concept of identifying agents capable of selectively binding to the serotonin 5-HT7 and muscarinic M4 receptors and the use of such compounds in treating schizophrenia. The present invention also relates to novel amidine compounds for treating schizophrenia, a method of manufacturing such compounds, pharmaceutical formulations comprising said compounds, as well as medical uses and methods of treatment using said compounds.