Abstract: Systems, methods, and apparatuses are provided for diagnosing auto-immune diseases such as systemic lupus erythematosus (SLE) based on the sizes, methylation levels, and/or genomic characteristics of circulating DNA molecules. Patients provide blood or other tissue samples containing cell-free nucleic molecules for analysis. Massively parallel and/or methylation-aware sequencing can be used to determine the sizes and methylation levels of individual DNA molecules and identify the number of molecules originating from different genomic regions.

Abstract: A battery connector includes a dielectric housing defining terminal grooves therein to receive plenty of electric terminals. The tops of two sidewalls of each terminal groove extend inwardly to form a pair of withstanding beams. A gap is formed on the front end of the withstanding beam. The electric terminal has a base. The rear end of the base bends upwardly to form a spring portion. A contact portion extends from one end of the spring portion. The middle of the front end of the base bends upwardly to form a welded tail portion leaning inwardly. Two project edges extend outwardly from two sides of the top of the welded tail portion. The welded tail portion is located in the front end of the terminal groove with a part exposed outside the front surface. The project edges are located in the gaps and against the front walls of the withstanding beams.