OBJECTIVE Research suggests that dementia patients detect fewer action errors than age-matched controls; however, little is known about the derivation of their error-monitoring difficulties. The aims of the study are to evaluate a novel, task-training action intervention (TT-NAT) designed to increase error monitoring in dementia patients and to pinpoint the relation between error monitoring and...

The use of Network Address Translation (NAT) has greatly expanded in recent years. While originally an address management technique it has often been used for security. However, there are many implementations of NAT that are inherently insecure. Recently investigation into some of these has shown increased potential for security holes in NAT deployments. An understanding of the risks associated...

Denitrification of the Arctic winter stratosphere has been calculated using a 3-D micro-tion is assumed to occur through the sedimentation of low number concentrations of large nitric acid trihydrate (NAT) particles, as observed extensively in 1999/2000. We 5 examine whether the meteorological conditions that allowed NAT particles to grow to the very large sizes observed in 1999/2000 also occur...

OBJECTIVE The University Hospital in Hamburg (UKE) started to develop a test of knowledge in natural sciences for admission to medical school in 2005 (Hamburger Auswahlverfahren für Medizinische Studiengänge, Naturwissenschaftsteil, HAM-Nat). This study is a step towards establishing the HAM-Nat. We are investigating parallel forms reliability, the effect of a crash course in chemistry on test ...

BACKGROUND Nucleic acid testing (NAT) has become the standard for high sensitivity in detecting low levels of virus. However, adoption of NAT can be cost prohibitive in low-resource settings where access to extreme sensitivity could be clinically advantageous for early detection of infection. We report development and preliminary validation of a simple, low-cost, fully automated digital p24 ant...

BACKGROUND Blood transfusion safety commences with healthy donor recruitment. The threat of transfusion transmitted infections is greatly minimized by serological tools but not entirely eliminated. Recently, nucleic-acid testing for blood donor screening has virtually eliminated this jeopardy. METHODS This prospective study was conducted from February 2015 to February 2016. Samples from seron...

| We consider the eeect of using randomly selected sequence multisets for the uplink of a code-division multiple-access channel. In particular, we calculate a tight lower bound on the expected value of the sum capacity, over the ensemble of randomly selected sequence multi-sets. We show that for large systems, the sum rate penalty for using randomly selected multi-sets is at most 1 nat, and van...

It is common today to have H.323 and SIP videoconferencing equipment deployed behind firewalls/NATs in campus and enterprise networks. A major challenge faced by network planners is to configure firewalls and gatekeeper proxies to allow voice-and-video traffic in-and-out of the internal-network’s ports while limiting malicious access of internal-network data by intruders through the same open p...

This study was conducted to investigate effects of an acute sodium load on resting plasma volume (PV) and renal mechanisms across the menstrual cycle of endurance-trained women with natural (NAT) or oral contraceptive pill (OCP) controlled cycles. Twelve women were assigned to one of two groups, according to their usage status: 1) OCP [n = 6, 29 yr (SD 6), 59.4 kg (SD 3.2)], or 2) NAT [n = 6, 2...

BACKGROUND Nucleic acid test (NAT) hepatitis B virus (HBV) screening for all blood donations with a sensitivity limit of 25 IU/mL in the individual donation is mandatory in Switzerland since 2009. The aims of the two studies were to define the percentage of antibody to hepatitis B core antigen (anti-HBc) or anti-HBc and antibody to hepatitis B surface antigen (anti-HBs)-positive donors bearing ...