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.
Research Policies. HHMI's scientific research is governed by policies that address the conduct of research, the sharing of data and materials, collaborations, and intellectual property.cientific Misconduct. As an organization dedicated to biomedical research in the public interest, HHMI expects that its scientists will conduct research and engage in related academic activities in accordance with the highest scientific and ethical standards.