40 Result(s)

Article

Rs6922269 marker at the MTHFD1L gene predict cardiovascular mortality in males after acute coronary syndrome

Myocardial infarction (MI) is the leading cause of death in industrialized countries. All the traditional risk factors for MI are responsible for approximately 50 % of cases of MI cases. Attention therefore h...

J. A. Hubacek, V. Staněk, M. Gebauerová, R. Poledne… in Molecular Biology Reports (2015)

Article

Clinical anatomy of the retrocalcaneal bursa

The goal of the study was to perform a detailed anatomical description of the retrocalcaneal bursa (RB). Its morphological arrangement was studied on 10 fresh and 30 embalmed lower extremities by microdissecti...

D. Kachlik, V. Baca, M. Cepelik, P. Hajek, V. Mandys… in Surgical and Radiologic Anatomy (2008)

Article

Smooth noncompact operators from C(K), K scattered

Let X be a Banach space, K be a scattered compact and T: B _C(K) → X be a Fréchet smooth operator whose derivative is uniformly continuous. We introduce the smoo...

R. Deville, P. Hájek in Israel Journal of Mathematics (2007)

Article

Zero sets of polynomials in several variables

Let \(k, n \in \mathbb{N}\) , where n is odd. We show that there is an integer N  =  N(k, n) such that for every n-hom...

R. M. Aron, P. Hájek in Archiv der Mathematik (2006)

Article

Arithmetical complexity of fuzzy predicate logics – a survey

Results on arithmetical complexity of sets of tautologies and satisfiable formulas of various fuzzy logics (with respect to their standard t-norm based semantics as well as with respect to their general BL-algebr...

P. Hájek in Soft Computing (2005)

Article

Convexity and w ^* -compactness in Banach spaces

Suppose ℓ_∞↪X. We construct examples of bounded sets M⊂X, such that These examples show that the previous results of the authors on quantitative versions of Krein’s theorem are...

A. S. Granero, P. Hájek, V. Montesinos Santalucía in Mathematische Annalen (2004)

Article

Observations on non-commutative fuzzy logic

The paper presents some results on the logic psBL (pseudo-basic fuzzy logic, the generalization of BL not assuming commutativity of conjunction) and on the analogous logic psMTL – a non-commutative version of the...

P. Hájek in Soft Computing (2003)

Article

Basic fuzzy logic and BL-algebras II

 Three new (easy) results about the computational complexity of basic propositional fuzzy logic BL are presented. An important formula of predicate logic is shown 1-true in all interpretations over saturated BL-c...

P. Hájek in Soft Computing (2003)

Article

Acute effect of glucose tablets on desire to smoke

Rationale: Previous research suggests that glucose may reduce desire to smoke during periods of abstinence but a definitive test is needed. Objective: The present study aimed to determin...

R. West, S. Courts, S. Beharry, S. May, P. Hajek in Psychopharmacology (1999)

Article

Basic fuzzy logic and BL-algebras

 The many-valued propositional logic BL (basic fuzzy logic) is investigated. It is known to be complete for tautologies over BL-algebras (particular residuated lattices). Each continuous t-norm on [0,1] determine...

P. Hájek in Soft Computing (1998)

Article

Ten claims about fuzzy logic

P. Hájek in Soft Computing (1998)

Article

A dialogue on fuzzy logic

P. Hájek, J. Paris in Soft Computing (1997)

Chapter

Do Medical Students Believe that Communication Skills can be Learned?

We need to understand what students views and experiences are in order to maximise the effectiveness of their learning. There are of course many variations within the student group but if we were to summarise ...

A. Cushing, E. Najberg, P. Hajek in Advances in Medical Education (1997)

Article

Randomised controlled trial of ondansetron in smoking cessation

A double-blind, placebo controlled trial was undertaken to examine the effect of the 5-HT₃ antagonist, ondansetron .25 mg bd on cigarette withdrawal symptoms and on proportion of individuals maintaining continuou...

R. West, P. Hajek in Psychopharmacology (1996)

Chapter and Conference Paper

On Logics of Approximate Reasoning II

A logical analysis of reasoning under uncertainty and vagueness, surveyed in Part I of this paper, is continued and updated. The paper has a survey character.

P. Hájek in Proceedings of the ISSEK94 Workshop on Mat… (1995)

Article

Production of avermectin A2a and monoglycosides A2a and B2a by a strain ofStreptomyces avermitilis

A strain ofStreptomyces avermitilis producing almost predominantly avermectin A2a and monoglycosides A2a and B2a was described. Methods of analytical and preparative high performance liquid chromatography were us...

J. Novák, M. Beran, J. Němeček, V. Přikrylová, P. Hájek in Folia Microbiologica (1993)

Article

On some formalized conservation results in arithmetic

IΣ _n andBΣ _n are well known fragments of first-order arithmetic with induction and collection forΣ _n fo...

P. Clote, P. Hájek, J. Paris in Archive for Mathematical Logic (1990)

Article

Craniopagus twins: neuroradiological findings (CT, angiography, MRI)

A pair of craniopagus twins was examined with CT, angiography and MRI, to preoperatively assess their cerebral anatomy and blood flow. Angiography revealed a common venous sinus and a venous cross-flow from on...

E. Schindler, P. Hajek in Neuroradiology (1988)

Chapter and Conference Paper

Integrierte Diagnostik von Knochentumoren — Röntgen, Nuklearmedizin, CT und MRT

Konventionelle Röntgenaufnahmen, Szintigraphie, Angiographie und im letzten Jahrzehnt die Computertomographie (CT) spielen dabei eine ganz wesentliche Rolle. Zu diesen radiologischen Verfahren trat in den letz...

H. Imhof, P. Hajek, M. Schratter… in Digitale bildgebende Verfahren Interventio… (1988)

Chapter and Conference Paper

Towards a Probabilistic Analysis of MYCIN-like Expert Systems (Working Paper)

A formal apparatus is developed here for the study of the compatibility of MYCIN-like expert systems with axioms of probability theory. Some partial results are presented; but the main stress is on open problems.

P. Hájek in Compstat (1988)