Does Good Mutation Help You Live Longer?

نویسندگان

  • W. Hwang
  • P. L. Krapivsky
  • S. Redner
چکیده

We study the dynamics of an age-structured population in which the life expectancy of an offspring may be mutated with respect to that of its parent. When advantageous mutation is favored, the average fitness of the population grows linearly with time t, while in the opposite case the average fitness is constant. For no mutational bias, the average fitness grows as t2 3. The average age of the population remains finite in all cases and paradoxically is a decreasing function of the overall population fitness.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

P35: How to Manage Anxiety

Anxiety is a mental state that is elicited in anticipation of threat or potential threat. Sensations of anxiety are a normal part of human experience, but excessive or inappropriate anxiety can become an illness. Anxiety is part of the normal human experience. We may speculate that it served human survival during evolution by enhancing preparedness and alertness. However, anxious manifestations...

متن کامل

Determining How Defects in Connexin 43 Cause Skeletal Diseases

iv ACKNOWLEDGMENTS I wish first to express my sincere appreciation to Dr. Kathy Iovine, my graduate mentor. Your advice, guidance, understanding and constant support have shaped my graduate career to success. Thank you so much for being with me when I thought I could have failed the program. Thank you for thinking ahead and helping me to find the solution for the problems. Your expectations and...

متن کامل

Self-care guide for the heart failure patient.

Y ou have been diagnosed with heart failure, but you are not alone. There are now more than 5 million Americans living with heart failure. Fortunately, with advances in treatment, you may live longer and enjoy a good quality of life. Heart failure is a serious medical condition that occurs when the heart does not pump enough blood to the rest of the body. It may be caused by many factors, such ...

متن کامل

Notes on the rights of a poor woman in a poor country.

It is possible to adapt to a given situation precisely because you have got to live it, and you have got to live it every day. But adapting does not mean that you forget. You go to the mill every day — it is always unacceptable to you, it has always been unacceptable to you, and it remains so for life — but you adapt in the sense that you cannot continue to live in a state of conflict with your...

متن کامل

Increasing The Number of Embryos Transferred from Two to Three, Does not Increase Pregnancy Rates in Good Prognosis Patients

Background To compare the pregnancy outcomes after two embryos versus three embryos transfers (ETs) in women undergoing in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) cycles. MaterialsAndMethods This retrospective study was performed on three hundred eighty seven women with primary infertility and with at least one fresh embryo in good quality in order to transfer at each ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1999