lthough fuzzy set theory and  sheaf theory have been developed and studied independently,  ulrich hohle shows that a large part of fuzzy set  theory  is in fact a subfield of sheaf theory. many authors have studied mathematical structures, in particular, algebraic structures, in both  categories of these generalized (multi)sets. using hohle's idea, we show that for a (universal) algebra $a$, th...

BACKGROUND Current guidelines for anticoagulation during left-sided procedures recommend the administration of unfractionated heparin (UFH) with an initial bolus of 50-100 U/kg, followed by continuous infusion to maintain an activated clotting time (ACT) ≥ 300 s. Our objective was to compare the effectiveness of this standard regimen (100 U/kg bolus) to a more aggressive approach (200 U/kg bolu...

Dilu te-solut ion t ranspor t equa t ions wi th cons tan t act ivi ty coeff icients are c o m m o n l y used to mode] s emiconduc tors. These equa t ions are cons is ten t wi th a Bo l t zmann dis t r ibut ion and are inval id in regions where the Species concent ra t ion is close to the respec t ive site concentra t ion. A more r igorous t r ea tmen t of t ranspor t in a s emiconduc to r requi...

Asp kinase catalyzes the first step of the Asp-derived essential amino acid pathway in plants and microorganisms. Depending on the source organism, this enzyme contains up to four regulatory ACT domains and exhibits several isoforms under the control of a great variety of allosteric effectors. We report here the dimeric structure of a Lys and S-adenosylmethionine-sensitive Asp kinase isoform fr...

To resolve several problems of ACT-R’s declarative memory (DM), Schultheis, Barkowsky, and Bertel (2006) developed a new long-term memory (LTM) component, called LTM . In this paper we present two ACT-R interfaces which integrate LTM into ACT-R. Such integrating LTM makes it easily accessible to ACT-R modelers and allows more thoroughly evaluating it in its interplay with other components of a ...

Anticoagulation monitoring in pediatric patients can be problematic because of the immaturity of the coagulation system in this population. In addition, the hemodilution required to place a small patient on bypass can interfere with standard monitoring methods. In this institution, the Hemochron Jr. ACT (activated clotting time)+ assay has been the standard of care for anticoagulation monitorin...