Evolution Controversies and the Theory of Aging

نویسنده

  • Theodore C. Goldsmith
چکیده

In 1859 Charles Darwin published his theory of evolution in his book On the Origin of Species. The theory actually consisted of two distinct parts: First, species are descended from other, earlier species. There is currently no scientific disagreement with this part. The second part concerned the way evolution works. Survival of the fittest was an elegant yet simple explanation for the mechanics of evolution. Anyone looking at a giraffe or even a tulip could easily identify hundreds of organism design characteristics that clearly aided in surviving or reproducing, that is, in increasing evolutionary 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

Controversies in Obesity Treatment

The markedly high prevalence of obesity contributes to the increased incidence of chronic diseases, such as diabetes, hypertension, sleep apnea, and heart disease. Because of high prevalence of obesity in almost all countries, it has been the focus of many researches throughout the world during the recent decades. Along with increasing researches, new concepts and controversies have been emerge...

متن کامل

بررسی تکوین نظریۀ ولایت عارفانه بر مبنای استحالۀ تمثیلی و چگونگی انتقالِ آن به عصر سهروردی

Many researchers have researched the source of Islamic Sufism from a certain intellectual disposition. The prevailing view of these research works, is based on arbolic thinking and having centralized roots. According to the theory of allegorical Metamorphosis, each of the topics discussed in Islamic Sufism, can have separate roots. The present paper aims to show that Iranian Culture is one...

متن کامل

Ursolic acid: a versatile triterpenoid compound in regulating the aging

We and other studies have elucidated single molecules that can attenuate aging and extend longevity. Indeed, these molecules could prevent age-associated diseases simultaneously and probably extending healthy-life spans. In this review, we discuss recent advances, controversies, opportunities and challenges surrounding ursolic acid (UA) in relationship with aging. In this regard, UA also known ...

متن کامل

Review of Mechanisms and Theories of Aging

Several factors have incentive role for study of aging which includes increasing of the average and maximum of human life span, the increase in percentage of elderly in the societies and proportion of the national expenditure utilized by them. The Recent views of aging indicating that aging is extremely a complex multifactorial process despite of earlier views about definite cause aging like ge...

متن کامل

Comparing the perception of patterns of aging in adolescents and young adults based on grounded theory

Objectives: The present study was conducted in order to compare the perceptions of aging between young and adolescent individuals. The perception of aging is defined as the individual’s perception of one’s aging in their socio-cultural context. This concept subsumes all aspects of consciousness, perception, experience, assessment, interpretation, and cognition related to the process of aging. ...

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 2009