SUMMARY – Frank’s sign is a dermatological marker, which has in many studies correlated with coronary heart disease. The aim of the study carried out in a sample of 60 subjects was to define whether Frank’s sign belongs to the group of risk factors for cerebrovascular disease. The subjects with the presence of Frank’s sign were assigned to group A, and those without Frank’s sign to group B. All...

Sign surveys are commonly used to study and monitor wildlife species but may be flawed when surveys are conducted only once and cover short distances, which can lead to a lack of accountability for false absences. Multiple observers surveyed for river otter (Lontra canadensis) scat and tracks along stream and reservoir shorelines at 110 randomly selected sites in eastern Kansas from January to ...

Yersinia pestis is the etiologic agent of bubonic and pneumonic plagues. It is speculated that Y. pestis hijacks antigen-presenting cells (APCs), such as dendritic cells (DCs) and alveolar macrophages, in order to be delivered to lymph nodes. However, how APCs initially capture the bacterium remains uncharacterized. It is well known that HIV-1 uses human DC-specific intercellular adhesion molec...

BACKGROUND AND PURPOSE CT angiography spot sign predicts hematoma expansion in patients with acute intracerebral hemorrhage (ICH). The spot sign may represent a site of active extravasation, a locus of arrested hemorrhage forming fibrin globes, or represent associated epiphenomena such as hypertensive microaneurysms. We sought to describe the evolution of spot signs over 60 seconds in acute ICH...

we present new division algorithms for Residue Number System (RNS). The algorithms are based on a sign estimation procedure that computes the sign of a residue number to be positive, negative, or indeterminate. In the last case, magnitude of the number is guaranteed to be in a limited interval whose size is related to the cost of the sign estimation process. Our division algorithms resemble SRT...

Dendritic cells (DCs), critical antigen-presenting cells for immune control, normally derive from bone marrow precursors distinct from monocytes. It is not yet established if the large reservoir of monocytes can develop into cells with critical features of DCs in vivo. We now show that fully differentiated monocyte-derived DCs (Mo-DCs) develop in mice and DC-SIGN/CD209a marks the cells. Mo-DCs ...

The anomalous scaling in the Ginzburg-Landau model for the superconducting phase transition is studied. It is argued that the negative sign of the η exponent is a consequence of a special singular behavior in momentum space. The negative sign of η comes from the divergence of the critical correlation function at finite distances. This behavior is related to the existence of a firstorder transit...

Quantum annealing is a generic solver of the optimization problem that uses fictitious quantum fluctuation. Its simulation in classical computing is often performed using the quantum Monte Carlo simulation via the Suzuki-Trotter decomposition. However, the negative sign problem sometimes emerges in the simulation of quantum annealing with an elaborate driver Hamiltonian, since it belongs to a c...

PURPOSE Patient gestures are thought to be useful in determining the etiology of chest discomfort. We sought to determine the utility of certain patient gestures in the diagnosis of ischemic chest discomfort or myocardial infarction. METHODS We performed a prospective observational study of 202 patients admitted with chest discomfort. Patients were observed for the Levine Sign (clenched fist ...

BACKGROUND The loss of the swallow-tail sign of the substantia nigra has been proposed for diagnosis of Parkinson's disease. Aim was to evaluate, if the sign occurs consistently in healthy subjects and if it can be reliably detected with high-resolution 7T susceptibility weighted imaging (SWI). METHODS Thirteen healthy adults received SWI at 7T. 3 neuroradiologists, who were blinded to patien...