منابع مشابه
When life gets physical
The subatomic world is nothing like the world that biologists study. Physicists have struggled for almost a century to understand the wave– particle duality of matter and energy, but many questions remain unanswered. That biological systems ultimately obey the rules of quantum mechanics might be self-evident, but the idea that those rules are the very basis of certain biological functions has n...
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Because low levels of plasma high density lipoprotein cholesterol (HDL-C) are a major independent risk factor for atherosclerotic cardiovascular disease,1 the mechanisms leading to low HDL-C are of substantial biological and clinical importance. Low HDL-C is most commonly seen in persons who have other components of the “metabolic syndrome,” particularly increased waist circumference, elevated ...
متن کاملWhen the mathematics gets lost in didactics
This study shows how six elementary teachers, construed locally as effective, interpreted and were observed to enact the same curricular and didactical language very differently. One group of three provided high-level cognitively challenging tasks to engage children in mathematics. A second group of three, ensuring their children enjoy mathematics, subordinated mathematical learning to an empha...
متن کاملAlternative Skid Trail Retirement Options for Steep Terrain Logging
In winter 1999-2000 trials of deep tillage and recontouring of skid trails were implemented on three sites in northeastern Kentucky, USA to examine their potential as skid trail retirement options. While effective, current Best Management Practices (BMPs) for trail retirement do not address two potential benefits of retirement: recovery of normal hill slope hydrology and amelioration of soil co...
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The high risk that we take during training, when several years of work are focused on one main project that may also not work but that is decisive for the further career, was a particular challenge to me. Due to my dual career in medicine and science and also personal life circumstances, the time I could allocate for my postdoctoral research was limited. I was very worried that my project would...
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ژورنال
عنوان ژورنال: Science
سال: 2019
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.363.6427.662