منابع مشابه
Neurogenesis and depression: breakthrough or blind alley?
Pieces of evidence are emerging in support of the startling idea that the birth of new neurones in the adult brain in some way underlies major depression. Although there are intriguing parallels between factors that regulate neurogenesis and those predicting depression or its recovery, at this point, we should remain sceptical but allow cautious hope that more effective therapies may be suggested.
متن کامل"What is learned?"--A theoretical blind alley.
The pursuit of knowledge frequently has been hampered by misdirection. Questions lacking any possibility of being answered experimentally are often considered to be empirically meaningful. In many instances this inherent lack of meaning is so well hidden that much time and effort is wasted on attempted answers. The history of psychology has contained many such cases of "meaningless questions"; ...
متن کاملEvolution: Selfing Takes Species Down Stebbins’s Blind Alley
Shifts from outcrossing to selfing have occurred thousands of times across the tree of life. By reducing the size of the gene pool, selfing should limit adaptive potential. A refreshing empirical experiment with snails supports this long-standing hypothesis.
متن کاملMesenchymal Stem Cells in Sepsis and Associated Organ Dysfunction: A Promising Future or Blind Alley?
Sepsis, newly defined as a life-threatening organ dysfunction caused by a dysregulated host response to infection, is the most common cause of death in ICUs and one of the principal causes of death worldwide. Although substantial progress has been made in the understanding of fundamental mechanisms of sepsis, translation of these advances into clinically effective therapies has been disappointi...
متن کاملStem Cell Therapy for the Heart: Blind Alley or Magic Bullet?
When stressed by ageing or disease, the adult human heart is unable to regenerate, leading to scarring and hypertrophy and eventually heart failure. As a result, stem cell therapy has been proposed as an ultimate therapeutic strategy, as stem cells could limit adverse remodelling and give rise to new cardiomyocytes and vasculature. Unfortunately, the results from clinical trials to date have be...
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ژورنال
عنوان ژورنال: The Economic Journal
سال: 1912
ISSN: 0013-0133
DOI: 10.2307/2221802