Iako postoje brojni, vrlo dobro definirani riziËni faktori za nastanak karcinoma kolorektuma, ipak se u viπe od 75% svih sluËajeva bolesti ona pojavljuje bez poznatog riziËnog faktora. Sekvenca adenom-karcinom vrlo je dobro ispitana u pojavi kolorektalnog karcinoma. VeÊina karcinoma debelog crijeva nastaje iz adenoma (ne iz hiperplastiËnih polipa). Adenomi veÊi od 1 cm s vjerojatnoπÊu od oko 15...

We show that the norm graph constructed in [13] with n vertices about 1 2n 2−1/t edges, which contains no copy of Kt,(t−1)!+1, does not contain a copy of Kt+1,(t−1)!−1.

In this paper we investigate the closure ~-* under substitution-composition of a family of graphs ~,, defined by a set Lr of forbidden configurations. We first prove that ~-* can be defined by a set L~* of forbidden subgraphs. Next, using a counterexample we show that ~* is not necessarily a finite set, even when .~ is finite. We then give a sufficient condition for ~* to be finite and a simple...

Logical structures for modeling agents’ reasoning about unawareness are presented where it can hold simultaneously that: (i) agents’ beliefs about whether they are fully aware need not be veracious with partitional information; and (ii) the agent is fully aware if and only if she is aware of a fixed domain of formulae. In light of (ii), all states are deemed “possible”. Semantics operate in two...

We characterise t-perfect plane triangulations by forbidden induced subgraphs. As a consequence, we obtain that a plane triangulation is h-perfect if and only if it is perfect.

A circle graph is the intersection graph of a family of chords on a circle. There is no known characterization of circle graphs by forbidden induced subgraphs that do not involve the notions of local equivalence or pivoting operations. We characterize circle graphs by a list of minimal forbidden induced subgraphs when the graph belongs to one of the following classes: linear domino graphs, P4-t...

In this note, we prove that all 2× 2 monotone grid classes are finitely based, i.e., defined by a finite collection of minimal forbidden permutations. This follows from a slightly more general result about certain 2× 2 having two monotone cells in the same row.

An experiment was conducted to study the effect of soluble protein supplements on concentration of soluble non-ammonia nitrogen (SNAN) in the liquid phase of ruminal (RD) and omasal digesta (OD) of Korean native steers, and to investigate diurnal pattern in SNAN concentration in RD and OD. Three ruminally cannulated Korean native steers in a 3×3 Latin square design consumed a basal diet of rice...

Object-oriented systems development has attracted great interest in the information systems (IS) field because of a belief that using object-oriented development (OD) makes it easier to develop and maintain software plus achieve software reuse. However, the transition from structured to OD may be especially challenging for IS developers. In fact, some argue that structured development (SD) know...

An experimental study of simultaneous multi-point measurements in the flow and acoustic fields of a Mach 1.75 cold air jet is presented. A series of four optical deflectometer (OD) probes were used for the flow field measurements, and eight microphones arranged on a circular arc recorded the far-field pressure in the direction of peak emission. In addition, some of the OD probes were positioned...