Abstract We introduce natural strengthenings of sequential compactness, the r -Ramsey property for each number $r\geq 1$ . prove that metrizable compact spaces are all and give examples but not $(r+1)$ (assuming Continuum Hypothesis (CH) $r>1$ ). Productivity is considered.

Visual cognition is of significant importance in certain imaging applications, such as security and surveillance. In these applications, an important issue is to determine the cognition threshold, which is the maximum distortion level that can be applied to the images while still ensuring that enough information is conveyed to recognize the scene. The cognition task is usually studied with imag...

Chronic hypoxia (CH) is believed to induce myocardial protection, but this is in contrast with clinical evidence. Here, we test the hypothesis that repeated brief reoxygenation episodes during prolonged CH improve myocardial tolerance to hypoxia-induced dysfunction. Male 5-week-old Sprague-Dawley rats (n = 7-9/group) were exposed for 2 weeks to CH (F(I)O(2) = 0.10), intermittent hypoxia (IH, sa...

In the present study, two different models of task complexity; namely, limited attentional capacity model and cognition hypothesis were examined. To this end, the manipulation of cognitive task complexity along +/- single task dimension on Iranian EFL learners’ production in terms of fluency was explored. Based on the results of the writing test of TOFEL (2004), 48 learners were selected as the...

The evidence that patients with heart failure (HF) experience cognitive impairment is compelling.1 Cognitive impairment occurs in oneto three-quarters of HF patients2 and leads to poor health outcomes including reduced activities of daily living,3 inadequate engagement in HF self-care,2 clinical instability,4 and premature death.5 The escalating number of research papers investigating cognitive...

Little is known regarding the effect of chronic changes in neuronal activity on the extent of collateral sprouting by identified CNS neurons. We have investigated the relationship between activity and sprouting in oxytocin (OT) and vasopressin (VP) neurons of the hypothalamic magnocellular neurosecretory system (MNS). Uninjured MNS neurons undergo a robust collateral-sprouting response that res...

The impact of aging on healthcare expenditure (HCE) has been at the center of a prolonged debate. This paper purports to shed light on several issues of this debate by presenting new evidence on the ’red herring’ hypothesis advanced by Zweifel, Felder and Meier (1999). This hypothesis amounts to distinguishing a mortality from a morbidity component in healthcare expenditure (HCE) and claiming t...

1 2 Neural response dynamics of spiking and local field potential activity depend on CRT 3 monitor refresh-rate in the tree shrew primary visual cortex 4 5 Julia Veit, Anwesha Bhattacharyya, Robert Kretz, Gregor Rainer* 6 7 1 Visual Cognition Laboratory, Department of Medicine, University of Fribourg, Chemin du Musée 5, 1700 8 Fribourg, Switzerland 9 2 Division of Anatomy, University of Fribour...

Assuming the continuum hypothesis there is an inseparable sequence of length ω1 that contains no Lusin subsequence, while if Martin’s Axiom and ¬CH is assumed then every inseparable sequence (of length ω1) is a union of countably many Lusin subsequences.