Patients receiving circulatory support with peripheral veno-arterial extracorporeal membrane oxygenation (VA-ECMO) are at risk of developing differential hypoxia. This phenomenon occurs in patients with concomitant respiratory failure. Poorly oxygenated blood, ejected into the ascending aorta from the left ventricle, competes with retrograde flow from the ECMO circuit, potentially causing myoca...

Phenotypic changes in exploited fish stocks have been reported worldwide (1), but it remains an open question how much is attributable to phenotypic plasticity (likely reversible) versus genetic change (likely slow to reverse), and whether the driver is fishing (manageable) or environmental (mostly difficult to control). Recently, Eikeset et al. (2) attempted to disentangle density dependence f...

[1]. Departamento de Patologia e Medicina Legal, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE. [2]. Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Fortaleza, CE. [3]. Departamento de Farmácia, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Fortaleza, CE. [4...

A number of chemicals including antioxidants, vitamins and hormones are widely advertised as anti-aging drugs (geroprotectors). It is usually believed that life-extending capacity of geroprotectors may be attributed to their specific anti-aging mechanisms, even without solid scientific evidence. The analysis of the survival data gathered by both anti-aging and hormetic interventions demonstrate...

What do we want to learn from a translation competition and how do we learn it with confidence? We argue that a disproportionate focus on ranking competition participants has led to lots of different rankings, but little insight about which rankings we should trust. In response, we provide the first framework that allows an empirical comparison of different analyses of competition results. We t...

Wright et al. 2003). These effects have been assessed using primarily behavioral and neu-ropsychologic evaluations and are some of the most consistently reported impairments associated with lead exposure. Regarding the molecular and cellular effects of lead exposure that may underlie the behavioral effects, there is a good deal of data from experimental studies in animals, but relatively little...

Ushbu maqola tilshunoslik fani sohasida so‘z va turkumlari tasnifi, ularning grammatik leksik jihatlardan tahlili hamda o‘rganish usullari haqida. Maqolada tushunchasi ochib beriladi, asosiy xususiyatlari, funksiyasi ahamiyati haqida ma'lumot beriladi. So‘zlar leksikografiyada turli usullar yordamida o‘rganiladi. ma'nolilik, jamlanish, qo‘llanilish darajasi boshqa tarzda, esa qandaylik asosida ...

Genetic subdivision among populations plays a central role in the geographic mosaic theory of co-evolution (Thompson, 1994, 1999a,b; Burdon & Thrall, 1999; Nuismer et al., 1999; Gomulkiewicz et al., 2000). Co-evolution is a process that occurs across a complex geographic landscape, and co-evolutionary interactions are not equivalent across the Department of Biology, Indiana University, Blooming...