In both Pavlovian conditioning and human causal judgment, competition between cues is well known to occur when multiple cues are presented in compound and followed by an outcome. More questionable is the occurrence of competition between outcomes when a single cue is followed by multiple outcomes presented in compound. In the experiment reported here, we demonstrated blocking (a type of stimulu...

Address correspondence to: Mauricio Cabrera-Ríos, PO Box 9000, ININ –UPRM, Mayagüez, PR 00681-9000. Tel: (787) 832-4040, ext. 3240 • E-mail: mauricio. [email protected] Diagnosing cancer using microarray analysis to study differential gene expression has been a recent focus of intense research Although several very sophisticated analysis tools have been developed with this aim in mind, it still ...

Stent implantation has become the new standard angioplasty procedure. Instent re-stenosis remains the major limitation of coronary stenting. Re-stenosis is related to patient-, lesionand procedure-specific factors. Patient-specific factors can not be influenced to any extent. Procedure-specific factors are affected by implantation technique and stent characteristics. Design and material influen...

School children often encounter traumatic injuries like a crown fracture. They create serious functional, esthetic and psychological problems. Achievement of promising restoration that preserves its aesthetics and strength is the greatest desire for both children and their parents and is a challenging task for the dentist. The restorative options in these cases usually include composite resin a...

Lecture 13 examined selection response with multiple traits. Here we consider measuring selection on multivariate phenotypes in some detail, as this is a very popular exercise in modern evolutionary biology. Moving to multiple traits poses no changes in measuring fitnesses of individuals (Lecture 12), but does require us to provide the multivariate versions of the univariate differentials S and...

uniparental disomy (upd) is a situation in which both members of a chromosome pair are inherited from one parent. this study has been conducted on a family with a five year-old healthy girl and a mentally retarded boy. the parents were first cousins and they both had robertsonian translocation between their long arm of chromosome 13 and 14 [45, xy t (13q14q)]. their affected son had a similar k...

In this lecture we survey advanced denoising techniques. Unlike the Wiener filter which is an optimal linear estimator given the second order statistics of the noise and signal, the methods we consider in this lecture are non-linear and relies on a different prior, the sparsity one. Though it is used in many image processing problems, for the simplicity of the discussion we consider here only t...

Purpose: To evaluate using transcription analysis the presence and importance of two genes: NM23-H1 and TIMP-1 on control of tumor cell invasion in diffuse astrocytomas (WHO II) and glioblastoma multiforme (WHO IV). Method: Northern blot analysis of NM23-H1 and TIMP-1 was performed. Eight diffuse astrocytomas and 19 glioblastomas (WHO IV) were analyzed to determine if TIMP-1 and NM23-H1 were ca...

Knowledge of the sequence of morphogenetic changes in the development of sporangia and spores in the watermolds was first arrived at by traditional -and sometimes rather imprecise -cytological methodology (Chapter 12) or by simple observational means (Chapters 7, 8). In either case, the resulting information was limited in scope, but it is now possible by analyzing elements of the subcellular s...