Congestion and Fiscal Policy in a Two-Sector Economy with Public Capital: A Quantitative Assessment

This paper analyzes the role of public capital when the services it yields is subject to two forms of congestion, which we characterize as relative and aggregate. We employ a two-sector growth model in which there are conventional profit-maximizing private firms, together with “public firms”, whose objective is to produce a specified quantity of government investment goods – determined by government policy – at minimum cost. We characterize the equilibrium dynamics, and analyze two forms of fiscal disturbances – an increase in public investment, and a decrease in the tax on capital income – by simulating a calibrated economy. We contrast the effects of these two types of congestion on both the existing steady-state equilibrium, as well as for the effectiveness of fiscal policy.     

Preferences of therapists-in-training for client characteristics.

The preferences of 132 therapists-in-training for 16 client characteristics were investigated using a paired comparison methodology. Therapists most preferred to work with clients who were psychologically minded, shared similar attitudes and values, and had dissimilar personally troubling problems. They least preferred to work with clients who were not psychologically minded, had dissimilar attitudes and values, and were older. Order of preferences was not influenced by therapist sex, race, clinical experience, socioeconomic status, sexual orientation, or theoretical orientation. Limitations of this study as well as implications for further research and training are discussed. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Tagged Systems: A Framework for the Specification of History-dependent Properties

We propose a general method for the treatment of history-dependent runtime errors. When one has to control this kind of errors, a tagged version of the language is usually defined, in which tags capture only the necessary information of the history of processes. We will characterize such tagged languages as being quotients of the reachability tree defined by the computations of the original language. From this fact we can conclude that the property characterized by each tagged language is indeed a property of the original one. In this way, we can work in a common framework, instead of defining an ad hoc semantics for each property. In particular, we could still use the analysis machinery existing in the calculus in order to prove that or other related properties. We have applied this methodology to the study of resource access control in a distributed π-calculus, called Dπ. In particular, we have proved that the tagged version of Dπ is indeed a tagging according to our definition.     

Soft computing agents for e-Health in application to the research and control of unknown diseases

This paper presents an ontology-based holonic diagnostic system (OHDS) that combines the holonic paradigm with multi-agent system technology and ontology design, for the organization of unstructured biomedical research into structured disease information. We use ontologies as ‘brain’ for the holonic diagnostic system to enhance its ability to structure information in a meaningful way and share information fast. To integrate distributed heterogeneous knowledge available on the Web we use intelligent agents augmented by the mechanisms of the technology of fuzzy sets, which automatically structures the information in the adequate ontology template. Our vision of how this system implementation should be supported by a solid security shield that ensures the privacy and safety of medical information concludes the paper.     

Development of a system for categorizing client reactions to therapist interventions.

We developed a measure of client reactions to therapist interventions. The 21 categories of the measure were divided into 14 positive and 7 negative reactions, which differed significantly from each other on client helpfulness ratings. Preliminary validity data indicated that therapist intentions were related to client reactions more for successful cases than unsuccessful cases, pretreatment symptomatology was highly predictive of which reactions the clients reported, there were some predictable changes in reactions across time in treatment, and within-case correlations of reactions with client-rated session depth and smoothness indicated some similarities across cases. We discuss the case-specific nature of client reactions, methodological issues, and the need for greater therapist awareness of client reactions. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Beneath the surface of long-term therapy: Therapist and client report of their own and each other's covert processes.

Therapists and clients reported on their own and their perceptions of each other's covert processes in long-term therapy. Therapists had a match rate of .45 for client reactions, with therapists rating match on therapeutic work reactions as helpful. Although 65% of clients left somethimg unsaid (primarily because of avoidance), only 27% of therapists were able to match what clients left unsaid. Of the clients, 46% had secrets (often sexual), primarily because of shame or insecurity. Clients had a match rate of .50 for therapist intentions, with therapists rating match on exploratory and restructuring intentions as helpful and both clients and therapists rating match on assessment intentions as not helpful. Thus, awareness of the other's covert processes had an effect on therapy. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Therapist perspectives on countertransference: Qualitative data in search of a theory.

A consensual qualitative research strategy was used to examine data from 127 interviews conducted with 8 psychologists immediately following their sessions of brief therapy with 8 clients. Analyses revealed 3 domains relevant to countertransference: origins (including categories of family issues, needs and values, therapy specific issues, and cultural issues), triggers (including categories of content of client material, therapist comparing client with others, change in therapy structure or procedures, therapist assessing progress of therapy, therapist perception of client, and emotions), and manifestations (including categories of approach, avoidance, negative feelings, and treatment planning). The frequency of categories within and across cases was classified, and relationships among categories from the 3 domains were detected, generating hypotheses for future empirical research. Implications for practice, training, and continued research are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Primary solid tumors of the mesentery

The interest for the primary solid tumors of the mesentery (TSPM) is justified by the difficulties of preoperative diagnosis and surgical treatment of these unusual lesions. We analyzed 68 TSPM operated in the Department of General Surgery of Fundeni Hospital between 1960-1993. In the study were included only the lymphoma presented as mesenteric masses (n = 17); the enlarged mesenteric lymph nodes were excluded. The most common malignant tumor was the fibroma (n = 8) and lipoma (n = 10). In the resection of mesenteric tumors exposure of the superior mesenteric vessels is important. The relation between tumoral and superior mesenteric vessels is the necessary criterion of resectability: in 41 cases from 43 unresectable lesions the reason of unresectability was the invasion of the superior mesenteric vein and artery; in only two cases the reason was the presence of liver metastases. The resectability was not influenced by the multiplicity of the lesions: in all cases with multiple mesenteric tumors (6 patients) the resection was performed. The distant metastases of TSPM are rare; on the contrary, the local invasion is common.     

Therapist retrospective recall impasses in long-term psychotherapy: A qualitative analysis.

Twelve experienced therapists completed a questionnaire, and 8 of the 12 were then interviewed about their experiences with a therapeutic impasse that ended in the termination of therapy. Data were analyzed using a qualitative methodology. Results indicated that most of the clients were anxious and depressed with personality disorders and interpersonal problems. Therapists perceived impasses as having a profound negative impact on both clients and therapists. Variables associated with impasses in a majority of the cases were a client history of interpersonal problems, a lack of agreement between therapists and clients about the tasks and goals of therapy, interference in the therapy by others, transference, possible therapist mistakes, and therapist personal issues. Implications for training, practice, and research are provided. (PsycINFO Database Record (c) 2010 APA, all rights reserved)