Quick Answer. In some rare cases, excessive stress causes bleeding between periods. It is more common that another condition is responsible, such as pregnancy, polycystic ovary syndrome, infection, pelvic inflammatory disease or side effects of medication, according to WebMD.
Characteristics of Scientific Research. When researches progress to a certain degree, turning over to think about them in time will contribute to advance their process and make them develop healthily in correct direction. Therefore, let's have a look into the characteristics of our work macroscopically and generally.
Scientists make their research available to the community by publishing it in scientific journals. In scientific papers, scientists explain the research that they are building on, their research methods, data and data analysis techniques, and their interpretation of the data. Understanding how to read scientific papers is a critical skill for scientists and students of science.