نتایج جستجو برای: longevity

تعداد نتایج: 18074  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...

Journal: :Biology letters 2013
Markus Port Michael A Cant

Models of social conflict in animal societies generally assume that within-group conflict reduces the value of a communal resource. For many animals, however, the primary cost of conflict is increased mortality. We develop a simple inclusive fitness model of social conflict that takes this cost into account. We show that longevity substantially reduces the level of within-group conflict, which ...

Journal: :nutrition and food sciences research 0
nazanin asghari hanjani department of nutrition, school of public health, iran university of medical sciences, tehran, iran mohammad reza vafa department of nutrition, school of public health, iran university of medical sciences, tehran, iran

0

2013
Cecilia M. Romo Jason M. Tylianakis

Climate change affects the abundance, distribution and activity of natural enemies that are important for suppressing herbivore crop pests. Moreover, higher mean temperatures and increased frequency of climatic extremes are expected to induce different responses across trophic levels, potentially disrupting predator-prey interactions. Using field observations, we examined the response of an aph...

2013
J. C. Bernal Charles Nix Douglas Boatwright

The purpose of this review was to examine sport officials’ motivation and passion to become and remain a referee in today’s sport climate. There are endless accounts of misconduct towards officials from participants, coaches, parents and fans. This review examined the research evidence that explained why officials continue to work in their sport and tried to determine what motivations were fact...

Journal: :iranian journal of public health 0
h mohammadzadeh hajipirloo ghh edrissian m nateghpour h basseri mb eslami pf billingsley

with the aim of controlling malaria by reducing vector population, the effects of antibodies produced against salivary glands and deglycosylated midgut antigens of anopheles stephensi mosquitoes on fecundity and longevity of the same species were tested. three deglycosylated preparations of midgut and two preparations of salivary glands were produced, conjugated with aluminum hydroxide gel, and...

2007
Li-wei Chao Helena Szrek Nuno Sousa Pereira Mark V. Pauly NUNO SOUSA PEREIRA MARK V. PAULY

Although theories in both evolutionary biology and economics predict that an individual’s health should be associated with the individual’s time preference, no prior study has been done to empirically support or refute such predictions. By collecting detailed measures of health, time preference, and expected longevity on a sample of individuals in townships around Durban, South Africa, this stu...

Journal: :The Lancet Healthy Longevity 2021

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید