340 results on '"Dassori A"'
Search Results
302. Poland sequence in two siblings suggesting an autosomal inheritance transmission.
- Author
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Cohen, Amnon, Zecca, Silvia, Dassori, Alessandra, Pelegrini, Monica, Parodi, Lorenza, and Romano, Cesare
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- 1996
- Full Text
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303. The expert consensus guideline series: Adherence problems in patients with serious and persistent mental illness
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Martijn J. Kikkert, Laurel A. Copeland, Delbert G. Robinson, S. Charles Schulz, John P. Docherty, Stephen M. Strakowski, Jan Scoff, Nina R. Schooler, Esperanza Diaz, Colin A. Depp, Charles L. Bowden, Lisa B. Dixon, Eric B. Elbogen, Paul E. Keck, Dawn I. Velligan, Paul A. Nakonezny, Emily M. Woltmann, Samuel J. Keith, John M. Davis, Christopher R. Bowie, Matthew J. Byerly, Roy H. Perlis, Peter J. Weiden, David J. Miklowitz, Alan S. Bellack, Jair C. Soares, John Lauriello, Barry D. Lebotz, Henry A. Nasrallah, Holly A. Swartz, S. Nasser Ghaemi, John E. Zeber, Albana M Dassori, William T. Carpenter, Martha Sajatovic, Stephen R. Marder, Alexander L. Miller, Joseph P. McEvoy, Michael W. Otto, Gary S. Sachs, and Marcia Valenstein
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medicine.medical_specialty ,Grandiosity ,business.industry ,Psychological intervention ,Guideline ,Mental illness ,medicine.disease ,Psychiatry and Mental health ,Distress ,Schizophrenia ,Family medicine ,Severity of illness ,medicine ,Bipolar disorder ,medicine.symptom ,Psychiatry ,business - Abstract
Objectives. Poor adherence to medication treatment can have devastating consequences for patients with mental illness. The goal of this project was to develop recommendations for addressing adherence problems to improve patient outcomes. Methods. The editors identified important topics and questions concerning medication adherence problems in serious mental illness that are not fully addressed in the literature. A survey was developed containing 39 questions (521 options) asking about defining nonadherence, extent of adherence problems in schizophrenia and bipolar disorder, risk factors for nonadherence, assessment methods, and interventions for specific types of adherence problems. The survey was completed by 41(85%) of the 48 experts to whom it was sent. Results of the literature review and survey were used to develop recommendations for assessing and improving adherence in patients with serious mental illness. Results. ASSESSING ADHERENCE: The experts endorsed percentage of medication not taken as the preferred method of defining adherence, with 80% or more of medication taken endorsed as an appropriate cut-off for adherence in bipolar disorder and schizophrenia. Although self- and physician report are the most common methods used to assess adherence in clinical settings, they are often inaccurate and may underestimate nonadherence. The experts recommend that, if possible, clinicians also use more objective measures (e.g., pill counts, pharmacy records, and, when appropriate, serum levels such as are used for lithium). Use of a validated self-report scale may help improve accuracy. SCOPE OF THE PROBLEM: The majority of the experts believed the average patient with schizophrenia or bipolar disorder in their practices takes only 51%-70% of prescribed medication. FACTORS ASSOCIATED WITH NONADHERENCE: The experts endorsed poor insight and lack of illness awareness, distress associated with specific side effects or a general fear of side effects, inadequate efficacy with persistent symptoms, and believing medications are no longer needed as the most important factors leading to adherence problems in schizophrenia and bipolar disorder. The experts considered weight gain a side effect that is very likely to lead to adherence problems in patients with schizophrenia and bipolar disorder; sedation was considered a more important contributor to adherence problems in bipolar disorder than schizophrenia. The experts rated persistent positive or negative symptoms in schizophrenia and persistent grandiosity and manic symptoms in bipolar disorder as the most important symptomatic contributors to adherence problems in these illnesses. INTERVENTIONS: It is important to identify the specific factors that may be contributing to a patient's adherence problems in order to customize interventions to target those problems. Multiple problems may be involved, requiring a combination of interventions. Conclusions. Adherence problems are complex and multi-determined. The experts recommended customized interventions focused on the underlying causes. Copyright © of content 2009 owned by Comprehensive Neuroscience, Inc.
304. Slow two-phase flow through a sinusoidal channel
- Author
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Dassori, Carlos G., primary, Deiber, Julio A., additional, and Cassano, Alberto E., additional
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- 1984
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305. Trickle-bed reactor modeling for middle-distillates hydrotreatment
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Dassori, C.G., Fernández, N., Arteca, R., Díaz, A., and Buitrago, S.
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- 1997
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306. Kinetics and transport parameters for the fixed-bed catalytic incineration of volatile organic compounds
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Sawyer, John E., Dassori, Carlos G., Frost, Albert C., Shah, Yatish T., and Summers, Jerry C.
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- 1991
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307. REPORT OF THE COMMITTEE ON LEGISLATIVE RECOMMENDATIONS.
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Dassori Jr., F. Davis
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COMMITTEES - Abstract
Presents a report of the Committee on Legislative Recommendation of the American Bar Association. Review on legislative and administrative recommendations; Details of the annual meeting of the Committee; Responsibilities of the Committee.
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- 1979
308. REPORT OF THE COMMITTEE ON LEGISLATIVE RECOMMENDATIONS.
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Dassori Jr., F. Davis
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TAX lawyers ,CONSTITUTIONS - Abstract
Reports the activities of the committee on legislative recommendations in the United States. Review of 21 legislative and administrative recommendations; Revision of the booklets of the Section; Preparation of the Annual Report of the Section to the House of Delegates of the American Bar Association.
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- 1978
309. A Schizophrenia Gene Locus on Chromosome 17q21 in a New Set of Families of Mexican and Central American Ancestry: Evidence From the NIMH Genetics of Schizophrenia in Latino Populations Study.
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Escamilla, Michael, Hare, Elizabeth, Dassori, Albana M., Peralta, Juan Manuel, Ontiveros, Alfonso, Nicolini, Humberto, Raventós, Henriette, and Medina, Rolando
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GENETICS of schizophrenia , *SCHIZOAFFECTIVE disorders , *META-analysis , *LATIN Americans , *PSYCHOSES , *PHENOTYPES , *FAMILY history (Genealogy) - Abstract
Objective: The present study investigated a new set of families of Latin American ancestry in order to detect the location of genes predisposing to schizophrenia and related psychotic disorders. Method: A genome-wide scan was performed for 175 newly recruited families with at least two siblings suffering from a psychotic disorder. Best-estimate consensus procedures were used to arrive at diagnoses, and nonparametric allele-sharing statistics were calculated to detect linkage. Results: Genome-wide significant evidence for linkage for the phenotype of DSM-IV schizophrenia or schizoaffective disorder was found in a region on chromosome 17q21 (lod score, 3.33). A region on chromosome 1 5q22-23 showed suggestive evidence of linkage with this same phenotype (lod score, 2.11). Analyses using a broader model (any psychosis) yielded evidence of suggestive linkage for the 17q21 region only, and no region achieved genome-wide significance of linkage. Conclusions: The new set of 175 families of Mexican and Central American ancestry delineates two new loci likely to harbor predisposition genes for schizophrenia and schizoaffective disorder. The region with the strongest support for linkage in this sample, 17q21, has been implicated in meta-analyses of schizophrenia genome screens, but the authors found no previous reports of it as a locus for schizophrenia in specific population or family-based studies, and it may represent the location of a schizophrenia predisposition gene (or genes) of special relevance in Mexican and Central American populations. [ABSTRACT FROM AUTHOR]
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- 2009
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310. Architettura emergenziale: buone pratiche esecutive
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Bellomo, Marco, Saeli, Manfredi, Colajanni, Simona, Dassori, E, Morbiducci, R, Bellomo, Marco, Saeli, Manfredi, and Colajanni, Simona
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Architecture for emergency, Shelter design, Innovative technologies, Sustainable materials, Best strategies ,Settore ICAR/10 - Architettura Tecnica - Abstract
This paper provides a comparative overview of different types of (temporary) shelters that have recently been used in various field locations in response to a forced displacement due to disastrous events. In particular, possible strategies useful to increase the sustainability of the humanitarian response and reduce the carbon footprint, while ensuring the adequacy and suitability of the shelters themselves, are here explored. This study investigates a systematic design framework that is often constrained by many obstacles such as the limited availability of low-cost materials, and a lack of local labour experience. To reduce the negative impact of a disaster, especially in the developing countries, the possibility of exploiting alternative materials, such as the regenerated, recycled, reused, and semi-finished materials, is extremely important. Some examples of emergency shelters are deeply discussed in terms of technological and architectural features; among those the Italian case of the tent-cities and the design projects of the Architect Shigeru Ban. Moreover, the choice of the used materials for the shelters’ construction will be deeply analysed as an essential element particularly sensible to certification and characterised by suitable properties in order to offer the maximum performance. The large number of disasters that have occurred in the recent years, deeply showed that despite the best intentions to coordinate and manage the operations, the executive reality is often quite chaotic and full of conflicting interests that hinder the relief efforts. Indeed, providing shelter implies temporary settlements that, on the other hand, gradually become almost permanent. Therefore, the need for socially sustainable solutions - based on green and sustainable design adapted to local conditions - must become a prerequisite. For the next designs it will be necessary to translate architectural solutions, whether for temporary emergency or reconstruction phases, into quality choices, with innovative materials that look to tradition but provide also the minimum comfort for communities.
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- 2022
311. Core and Shell: facciate storiche e nuovi edifici. Il caso dell’ex Chelsea and Fulham Power Station a Londra
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Salvatore Pecoraro, Emanuele Calabrò, Rossella Corrao, Dassori, E, Morbiducci, R, Salvatore Pecoraro, Emanuele Calabrò, and Rossella Corrao
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Settore ICAR/10 - Architettura Tecnica ,façadism, façade retention, heritage, mechanical connection, recovery, power station - Abstract
The maintenance of the façade(s) is one of the most common solutions – in countries where this intervention is allowed – which can also guarantee the “preservation” of the existing built herit- age, as well as the construction of new “zero land consumption buildings”. The English term used to identify this area of work is Façadism. The paper analyses a perfect example attributable to this area of work that is being implement- ed on the former Chelsea and Fulham Power Station in London. The refurbishment project, in the construction phase, was instructed to Midgard Design Service Ltd (Design Department of the Irish construction company JRL Group Limited) which will transform the entire area into a luxurious complex of blocks with apartments, amenities and commercial units. A new ten-floors residential building with a reinforced concrete frame will be built behind the historic facades of the Lots Road power station and connected to them with mechanical connections. The paper is divided into three parts: the first, dedicated to an analysis of the phenomenon of “Façadism”, as a refurbishment option for historic buildings in purely Anglo-Saxon contexts, analyzing their advantages and highlighting the considerations from which derived the analyzed various interventions; the second, which examines the former Lots Road Power Station of Chel- sea and Fulham in London and the project for its recovery; the third, which reports the results of the analysis of an alternative mechanical connection system to the one developed by the multidis- ciplinary consulting firm for engineering design Meinhardt (www.meinhardt.co.uk) – and wanted by the client (Cheung Kong Property Holdings, and Hutchkinson, www.ckh.com.hk)- which will be used for the construction of the new building within the original “shell” of the former Lots Road Power Station.
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- 2022
312. Il travertino nella costruzione muraria ad Alcamo
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Vinci, Calogero, Genova, Enrico, Cacciatore, Gianvito, Dassori, E, Morbiducci, R, Vinci, Calogero, Genova, Enrico, and Cacciatore, Gianvito
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Balconies ,Alcamo ,Settore ICAR/10 - Architettura Tecnica ,Travertino ,Masonry - Abstract
This study describes construction features typical of masonry buildings in the historic centre of Alcamo, Sicily. This local context is significant for the extent of the historic building stock and for the large use of travertine as traditional masonry material. The local availability of this rock is a peculiarity of Alcamo, in comparison with the rest of Sicily, and its use explains the originality of several construction details. The analysis exposed in this study is part of a wider research, aimed at developing a Sicilian database of mechanical and hygrothermal data for masonry tipologies. The historic tonewalls of Alcamo have been described by means of four masonry categories, whose main construction features are discussed. Furthermore, the results of laboratory tests of compressive strength and thermal conductivity, carried out on travertine samples, are reported. Finally, a focus on the structure of balconies, and the solutions related to the use of travertine, is described. The outcomes of this study are preliminary and will be extended to a more detailed thermal and hygrometric analysis of travertine and its stonewalls in Alcamo.
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- 2022
313. Novel green bio-composite geopolymeric thermo-plasters for innovative building applications: upcycling spent coffee ground
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Saeli, Manfredi, Campisi, Tiziana, Batra, Vidya S, Labrincha, Joao A., Dassori, E, Morbiducci, R, Saeli, Manfredi, Campisi, Tiziana, Batra, Vidya S, and Labrincha, Joao A.
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thermo-plaster ,virtual energy simulation ,Settore ING-IND/22 - Scienza E Tecnologia Dei Materiali ,Settore ICAR/10 - Architettura Tecnica ,Bio-composite mortar ,spent coffee ground recycling ,geopolymer - Abstract
This study proposes the reuse of spent coffee ground and biomass fly ash in the development of green geopolymeric thermo-plastering for innovative building applications. The former waste is the major residue of the brewing process, that is usually used as fertilisers or disposed of in landfill with extreme harmfulness for the natural environment. The latter is an industrial waste generated during the Kraft paper-pulp process, that is usually landfilled. The mortar is produced with a combination of metakaolin (30 wt.%) and biomass fly ash (70 wt.%), and natural siliceous sand filled with spent coffee ground (up to 17.5 wt.%). The high amount of reused waste makes the material an optimum candidate for the Environmental Minimum Criteria (CAM) assessment as ruled by the National Action Plan on Green Public Procurement. The overall manufacturing process occurred at ambient conditions (20 °C, 65% RH) contributing to the materials sustainability. 28-days cured specimens were analysed to assess the material engineering properties and delineate the possible applications in construction. Finally, virtual energy simulations were implemented to study the possible energetic performance benefits in a simplified building model. The major results are that the used wastes considerably improve the technological material performance making it suitable for effective use in construction. While the slurry workability is significantly affected by the waste introduction, and the mechanical resistance is still high, the thermal conductivity outlines a possible energy application. All considering, coffee waste can be effectively reused to manufacture green bio-composite materials with satisfactory performance considering the main requirements of a building making them exploitable in various applications in construction, especially in energy-saving functions, in line with the European directives towards zero-energy building.
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- 2022
314. Il conflitto normativo tra le istanze energetica e della conservazione degli edifici storici non vincolati
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Roberto Castelluccio, Veronica Vitiello, Castrese Andrea Di Mare, Enrico Dassori, Renata Morbiducci, Castelluccio, Roberto, Vitiello, Veronica, and Andrea Di Mare, Castrese
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Energy Retrofit, Built Heritage, Innovative Materials, Regulations, Conservation - Abstract
The need to respond to global missions about the containment of energy losses has generated the promotion, at national level, of numerous tax incentives for the recovery of the built heritage. The race for funding has encouraged a sudden innovation of materials and new technological solutions for energy retrofit interventions that sometimes are invasive for the application on those historic buildings, even if not punctually constrained, which characterize most of the curtains of the historical centers of the big cities. With the support of bibliographical data and through simplified quantitative checks, the paper highlights the limit of the application of prescriptive regulations for energy efficiency and the critical issues about the compatibility and durability of retrofit solutions applied to traditional wall supports. With the contribution, the authors intend to open a discussion among the representatives of the scientific sector, about the regulatory conflict that exists between the demands for energy efficiency and the demands of the conservation of the built heritage highlighting the need to overcome the diachrony between the productive world and the academic one so that the latter can implement the technological and cultural transfer activities aimed, on the one hand, at the development of clear paths for test and certification of materials and technologies for the recovery and redevelopment of the built heritage and, on the other hand, to the revision of energy regulations structure, in those cases where the waiting of theoretical parameters determine a damage to the preservation of the physical characteristics of the building.
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- 2022
315. Strumenti per il recupero edilizio: un abaco adattivo per il centro storico di Conza della Campania
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M. Fraiese, L. Diana, Enrico Dassori, Renata Morbiducci, Fraiese, M., and Diana, L.
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building recovery, seismic retrofit, energy retrofit, cultural landscape, intervention strategies - Abstract
A large part of the Italian territory is characterized by a spatial organization structured in small towns, with natural and cultural resources, vast material and immaterial heritage, and economic potential. All features often mirrored by a limited accessibility to essential services (transportation, health, and education systems), depopulation and high building vulnerability and inefficiency. The aim of this paper is to propose a methodology for the systemic definition of intervention strategies for building recovery and valorization, as part of a more complex strategy of inner areas’ revitalization, to be achieved in accordance with the cultural landscape, local construction techniques and materials, and the specific characteristics of considered buildings. The chosen case study has been the small town of Conza della Campania, whose historic center was almost destroyed by the 1980’s Irpinia earthquake; although abandoned since, the damaged building stock still preserves acknowledged architectural and constructive qualities, and the area has many potentials linked to its natural and productive vocations. Applying the methodology, seismic and energy retrofitting strategies resulted in the definition of adaptive abacuses describing the most efficient interventions for each considered building, derived by detailed analysis related to their construction techniques, architectural features, historical evolution, and artistic/cultural values. In terms of urban regeneration, these abacuses, as basis for seismic and energy building recovery, act as adaptive tools to support the definition of compatible operational choices and ensure the development of sustainable strategies leading to holistic results.
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- 2022
316. Il progetto ADRISEISMIC: ricognizione delle tecniche costruttive nei centri storici dell’area Adriatico-Ionica. The ADRISEISMIC Project: a survey on the building techniques in the historic centres of the Adriatic-Ionian area
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Predari Giorgia, Stefanini Lorenzo, Enrico Dassori, Renata Morbiducci, Predari Giorgia, and Stefanini Lorenzo
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ADRISEISMIC Project, construction techniques, seismic vulnerability, Adriatic-Ionian area, historic centres - Abstract
The research herein presented was carried out within the issues of the Adriseismic project, funded by the Interreg Adrion program, to address seismic vulnerability through a multidisciplinary approach. The project aims at developing new integrated approaches to innovate and harmonise the normative, technical and training frameworks in the ADRION area, providing ready-to-use methods, tools and procedures that will be integrated into the existing policies and practices, thus strengthening local responses and reducing vulnerability to natural hazards. The starting point of the activities was to deepen the knowledge of the built heritage in each country involved in the project, especially the local building techniques in the historic centres of the Adriatic-Ionian area, then qualitatively correlate them to possible seismic weaknesses. The typical construction characteristics of the buildings present in these Countries, both traditional and more recent ones, were analysed. In the first phase, the investigations were conducted by collecting all possible data in the six countries involved in the project: Italy, Croatia, Albania, Serbia, Slovenia and Greece. Then, the building techniques were divided according to their structural function, defining four macro-categories: vertical masonry structures, vertical reinforced concrete structures, horizontal structures and foundation structures. In the last phase, the results collected for each country were compared, highlighting a common general framework with substantial similarities between the various countries’ construction characteristics, despite different historical-cultural events and distant regulatory practices. This result demonstrates how the availability of the same building material governs construction solutions, even though human events are very different.
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- 2022
317. How Circular is an Italian Apartment Building? Testing of a Whole-Building Circularity Indicator
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N. Khadim, R. Agliata, L. Mollo, E. Dassori, R. Mobiducci, Khadim, N., Agliata, R., and Mollo, L.
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circular economy, building circularity, circularity indicator, material flow analysis, wbci - Abstract
Circular economy (CE), focused on closing the material loops, turns out to be relevant in the building industry to improve the construction process and reduce waste. Assessing the circular performance of buildings reveals the current level of achievement and future areas of improvement, hence aiding in transitioning from a linear to a CE based construction industry. However, this can be very complex, especially due to absence of a universally accepted Circularity Assessment Framework. Bearing that, a comprehensive CE assessment tool called Whole-Building Circularity Indicator (WBCI) is being developed at Engineering Department of University of Campania. This study tests and validates the first version of the freshly released WBCI using an existing apartment building in Southern Italy as a case study. The data is collected through building documents (detailed drawings, specifications) and site visits, and then modelled in BIM to perform a rigorous analysis. The results show that the apartment building does not perform well in circularity and scores very low (0.274). Excessive use of virgin materials, linear design approach, poor adaptability and disassembly potential after the end of life are the leading causes for this low score. The space plan turns out to be the most circular system among different building layers. The validation also uncovers the positives and negatives of the tested model. Finally, the study recommends practical strategies to improve the circular performance of residential buildings. With these advantages, this paper contributes to the much-anticipated debate on the measurement of CE in the building industry and can help construction practitioners estimate how advanced they are in the process of transition from linear to circular
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- 2022
318. Replication of genome-wide association study ( GWAS) susceptibility loci in a Latino bipolar disorder cohort.
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Gonzalez, Suzanne, Gupta, Jayanta, Villa, Erika, Mallawaarachchi, Indika, Rodriguez, Marco, Ramirez, Mercedes, Zavala, Juan, Armas, Regina, Dassori, Albana, Contreras, Javier, Flores, Deborah, Jerez, Alvaro, Ontiveros, Alfonso, Nicolini, Humberto, and Escamilla, Michael
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DNA replication , *BIPOLAR disorder , *SCHIZOPHRENIA , *GENETIC polymorphisms , *SINGLE nucleotide polymorphisms , *NF-kappa B - Abstract
Objectives Recent genome-wide association studies ( GWASs) have identified numerous putative genetic polymorphisms associated with bipolar disorder ( BD) and/or schizophrenia ( SC). We hypothesized that a portion of these polymorphisms would also be associated with BD in the Latino American population. To identify such regions, we tested previously identified genetic variants associated with BD and/or SC and ancestral haploblocks containing these single nucleotide polymorphisms ( SNPs) in a sample of Latino subjects with BD. Methods A total of 2254 Latino individuals were genotyped for 91 SNPs identified in previous BD and/or SC GWASs, along with selected SNPs in strong linkage disequilibrium with these markers. Family-based single marker and haplotype association testing was performed using the PBAT software package. Empirical P-values were derived from 10 000 permutations. Results Associations of eight a priori GWAS SNPs with BD were replicated with nominal ( P≤.05) levels of significance. These included SNPs within nuclear factor I A ( NFIA), serologically defined colon cancer antigen 8 ( SDCCAG8), lysosomal associated membrane protein 3 ( LAMP3), nuclear factor kappa B subunit 1 ( NFKB1), major histocompatibility complex, class I, B ( HLA-B) and 5′-nucleotidase, cytosolic II ( NT5C2) and SNPs within intragenic regions microRNA 6828 ( MIR6828) -solute carrier family 7 member 14 ( SLC7A14) and sonic hedgehog ( SHH) -long intergenic non-protein coding RNA 1006 ( LINC01006). Of the 76 ancestral haploblocks that were tested for associations with BD, our top associated haploblock was located in LAMP3; however, the association did not meet statistical thresholds of significance following Bonferroni correction. Conclusions These results indicate that some of the gene variants found to be associated with BD or SC in other populations are also associated with BD risk in Latinos. Variants in six genes and two intragenic regions were associated with BD in our Latino sample and provide additional evidence for overlap in genetic risk between SC and BD. [ABSTRACT FROM AUTHOR]
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- 2016
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319. Identification of circadian gene variants in bipolar disorder in Latino populations.
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Gonzalez, Robert, Gonzalez, Suzanne, Villa, Erika, Ramirez, Mercedes, Zavala, Juan, Armas, Regina, Contreras, Javier, Dassori, Albana, Leach, Robin J., Flores, Deborah, Jerez, Alvaro, Raventós, Henriette, Ontiveros, Alfonso, Nicolini, Humberto, and Escamilla, Michael
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CIRCADIAN rhythms , *BIPOLAR disorder , *SINGLE nucleotide polymorphisms , *HAPLOTYPES , *HISPANIC Americans , *DISEASES - Abstract
Background Variations in circadian genes can impact biological rhythms. Given the rhythm disturbances that characterize bipolar disorder (BD), genes encoding components of molecular clocks are good candidate genes for the illness. Methods A family based association analysis of circadian gene single nucleotide polymorphisms (SNPs) and BD was conducted in Latino pedigrees. 884 individuals from 207 pedigrees (473 BP phenotype and 411 unaffected family members) were genotyped. Family based single marker association testing was performed. Ancestral haplotypes (SNPs found to be in strong LD defined using confidence intervals) were also tested for association with BD. Results Multiple suggestive associations between circadian gene SNPs and BD were noted. These included CSNK1E (rs1534891, p =0.00689), ARNTL (rs3789327, p =0.021172), CSNK1D (rs4510078, p =0.022801), CLOCK (rs17777927, p =0.031664). Individually, none of the SNPs were significantly associated with BD after correction for multiple testing. However, a 4-locus CSNK1E haplotype encompassing the rs1534891 SNP ( Z -score=2.685, permuted p =0.0076) and a 3-locus haplotype in ARNTL ( Z -score=3.269, permuted p =0.0011) showed a significant association with BD. Limitations Larger samples are required to confirm these findings and assess the relationship between circadian gene SNPs and BD in Latinos. Conclusions The results suggest that ARNTL and CSKN1E variants may be associated with BD. Further studies are warranted to assess the relationships between these genes and BD in Latino populations. [ABSTRACT FROM AUTHOR]
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- 2015
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320. A National Cohort Study of the Association Between the Polytrauma Clinical Triad and Suicide-Related Behavior Among US Veterans Who Served in Iraq and Afghanistan.
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Finley, Erin P., Bollinger, Mary, Noël, Polly H., Amuan, Megan E., Copeland, Laurel A., Pugh, Jacqueline A., Dassori, Albana, Palmer, Raymond, Bryan, Craig, and Pugh, Mary Jo V.
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COMPLICATIONS of brain injuries , *SUICIDE risk factors , *AMERICAN veterans , *ALGORITHMS , *CHI-squared test , *CONFIDENCE intervals , *STATISTICAL correlation , *LONGITUDINAL method , *MEDICAL records , *MILITARY research , *PAIN , *POST-traumatic stress disorder , *QUESTIONNAIRES , *RESEARCH funding , *STATISTICS , *T-test (Statistics) , *MULTIPLE regression analysis , *RETROSPECTIVE studies , *DATA analysis software , *DESCRIPTIVE statistics , *ODDS ratio - Abstract
Objectives. We examined the association of posttraumatic stress disorder (PTSD), traumatic brain injury, and chronic pain—the polytrauma clinical triad (PCT)—independently and with other conditions, with suicide-related behavior (SRB) risk among Operation Enduring Freedom (OEF; Afghanistan) and Operation Iraqi Freedom (OIF) veterans. Methods. We used Department of Veterans Affairs (VA) administrative data to identify OEF and OIF veterans receiving VA care in fiscal years 2009–2011; we used International Classification of Diseases, Ninth Revision, Clinical Modification codes to characterize 211 652 cohort members. Descriptive statistics were followed by multinomial logistic regression analyses predicting SRB. Results. Co-occurrence of PCT conditions was associated with significant increase in suicide ideation risk (odds ratio [OR] = 1.9; 95% confidence interval [CI] = 1.5, 2.4) or attempt and ideation (OR = 2.6; 95% CI = 1.5, 4.6), but did not exceed increased risk with PTSD alone (ideation: OR = 2.3; 95% CI = 2.0, 2.6; attempt: OR = 2.0; 95% CI = 1.4, 2.9; ideation and attempt: OR = 1.8; 95% CI = 1.2, 2.8). Ideation risk was significantly elevated when PTSD was comorbid with depression (OR = 4.2; 95% CI = 3.6, 4.8) or substance abuse (OR = 4.7; 95% CI = 3.9, 5.6). Conclusions. Although PCT was a moderate SRB predictor, interactions among PCT conditions, particularly PTSD, and depression or substance abuse had larger risk increases. ( [ABSTRACT FROM AUTHOR]
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- 2015
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321. A Case Control Study of the Implementation of Change Model Versus Passive Dissemination of Practice Guidelines for Compliance in Monitoring for Metabolic Syndrome.
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Velligan, Dawn, Castillo, Desiree, Lopez, Linda, Manaugh, Bren, Davis, Charlotte, Rodriguez, Juanita, Milam, A., Dassori, Albana, and Miller, Alexander
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CHI-squared test , *CHRONIC diseases , *COMMUNITY mental health services , *COMMUNITY mental health service administration , *LEGAL compliance , *DECISION making , *MANAGEMENT , *MATHEMATICAL models , *MEDICAL protocols , *REHABILITATION of people with mental illness , *ORGANIZATIONAL change , *PROFESSIONS , *QUALITY assurance , *REGRESSION analysis , *STATISTICAL sampling , *THEORY , *METABOLIC syndrome , *CHANGE management , *CASE-control method , *DESCRIPTIVE statistics - Abstract
We developed an intervention to improve compliance with guidelines for monitoring metabolic syndrome and compared compliance prior to intervention and three times post-intervention at three community mental health clinics in Texas. One test clinic received intervention and two other clinics served as controls. Fifty random charts were reviewed from each clinic for three specific, 1-2 weeks periods over the course of 18 months. There were significant improvements in the ordering of labs, the presence of lab results in the chart, and documentation of blood pressure, body mass index and waist circumference in the intervention clinic over time in comparison to the control clinics. Documented evidence of physician action with respect to out of range values remained low. Metabolic monitoring is a multi-step process. Removing barriers, creating specific procedures, and dedicating staff resources can improve compliance with monitoring. [ABSTRACT FROM AUTHOR]
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- 2013
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322. Suggestive evidence for association between L-type voltage-gated calcium channel (CACNA1C) gene haplotypes and bipolar disorder in Latinos: a family-based association study.
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Gonzalez, Suzanne, Xu, Chun, Ramirez, Mercedes, Zavala, Juan, Armas, Regina, Contreras, Salvador A, Contreras, Javier, Dassori, Albana, Leach, Robin J, Flores, Deborah, Jerez, Alvaro, Raventós, Henriette, Ontiveros, Alfonso, Nicolini, Humberto, and Escamilla, Michael
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CALCIUM channels , *HAPLOTYPES , *VARISTORS , *BIPOLAR disorder , *GENETIC polymorphisms , *GENOTYPE-environment interaction - Abstract
Objectives: Through recent genome-wide association studies (GWASs), several groups have reported significant association between variants in the calcium channel, voltage-dependent, L-type, alpha 1C subunit (CACNA1C) and bipolar disorder (BP) in European and European-American cohorts. We performed a family-based association study to determine whether CACNA1C is associated with BP in the Latino population. Methods: This study included 913 individuals from 215 Latino pedigrees recruited from the USA, Mexico, Guatemala, and Costa Rica. The Illumina GoldenGate Genotyping Assay was used to genotype 58 single-nucleotide polymorphisms (SNPs) that spanned a 602.9-kb region encompassing the CACNA1C gene including two SNPs (rs7297582 and rs1006737) previously shown to associate with BP. Individual SNP and haplotype association analyses were performed using Family-Based Association Test (version 2.0.3) and Haploview (version 4.2) software. Results: An eight-locus haplotype block that included these two markers showed significant association with BP (global marker permuted p = 0.0018) in the Latino population. For individual SNPs, this sample had insufficient power (10%) to detect associations with SNPs with minor effect (odds ratio = 1.15). Conclusions: Although we were not able to replicate findings of association between individual CACNA1C SNPs rs7297582 and rs1006737 and BP, we were able to replicate the GWAS signal reported for CACNA1C through a haplotype analysis that encompassed these previously reported significant SNPs. These results provide additional evidence that CACNA1C is associated with BP and provides the first evidence that variations in this gene might play a role in the pathogenesis of this disorder in the Latino population. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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323. Barriers to, and Strategies for, Starting a Long Acting Injection Clinic in a Community Mental Health Center.
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Velligan, Dawn, Medellin, Elisa, Draper, Meredith, Maples, Natalie, Dassori, Albana, Moore, Troy, and Lopez, Linda
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ANTIPSYCHOTIC agents , *COMMUNITY mental health services , *COMMUNITY mental health service administration , *DRUGS , *INTRAMUSCULAR injections , *EVALUATION of medical care , *PATIENT compliance ,DRUG therapy for schizophrenia - Abstract
As many as 50% of patients with schizophrenia do not take oral antipsychotic medications as prescribed, yet long acting injections are rarely utilized. Community agencies that serve this population are often over-burdened and poorly funded. There are negative attitudes on the part of both physicians and consumers about injections. Transportation and logistics are often problematic. We describe the unique opportunity provided by the need for bi-weekly or monthly injections to establish a recovery-oriented group around injection visits. Our approach discusses methods and resources to help overcome some of the common barriers by establishing advocates within the agency, establishing necessary infrastructure, providing education for consumers, providers, and staff, sharing information about successful outcomes with clinic staff and working through billing issues. We also recommend public advocacy on the part of the clinic and consumers to work with state funding sources to change regulations that may limit appropriate clinical care. [ABSTRACT FROM AUTHOR]
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- 2011
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324. Substance use disorder comorbidity with schizophrenia in families of Mexican and Central American Ancestry
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Jiménez-Castro, Lorena, Hare, Elizabeth, Medina, Rolando, Raventos, Henriette, Nicolini, Humberto, Mendoza, Ricardo, Ontiveros, Alfonso, Jerez, Alvaro, Muñoz, Rodrigo, Dassori, Albana, and Escamilla, Michael
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SUBSTANCE abuse , *COMORBIDITY , *DUAL diagnosis , *PEOPLE with schizophrenia , *LOGISTIC regression analysis - Abstract
Abstract: Objectives: The aims of this study were to estimate the frequency and course of substances use disorders in Latino patients with schizophrenia and to ascertain risk factors associated with substance use disorders in this population. Method: We studied 518 subjects with schizophrenia recruited for a genetic study from the Southwest United States, Mexico, and Central America (Costa Rica and Guatemala). Subjects were assessed using structured interviews and a best estimate consensus process. Logistic regression, χ 2, t test, Fisher''s exact test, and Yates'' correction, as appropriate, were performed to assess the sociodemographic variables associated with dual diagnosis. We defined substance use disorder as either alcohol or substance abuse or dependence. Results: Out of 518 patients with schizophrenia, 121 (23.4%) had substance use disorders. Comorbid substance use disorders were associated with male gender, residence in the United States, immigration of Mexican men to the United States, history of depressive syndrome or episode, and being unemployed. The most frequent substance use disorder was alcohol abuse/dependence, followed by marijuana abuse/dependence, and solvent abuse/dependence. Conclusion: This study provides data suggesting that depressive episode or syndrome, unemployment, male gender, and immigration of Mexican men to the United States were factors associated with substance use disorder comorbidity in schizophrenia. Binary logistic regression showed that country of residence was associated with substance use disorder in schizophrenic patients. The percentage of subjects with comorbid substance use disorders was higher in the Latinos living in the United States compared with subjects living in Central America and Mexico. [Copyright &y& Elsevier]
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- 2010
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325. Social and clinical comparison between schizophrenia and bipolar disorder type I with psychosis in Costa Rica.
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Pacheco, Adriana, Barguil, Marcela, Contreras, Javier, Montero, Patricia, Dassori, Albana, Escamilla, Michael A., and Raventós, Henriette
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SCHIZOPHRENIA , *PSYCHOSES , *BIPOLAR disorder , *MENTAL illness - Abstract
Schizophrenia (SC) and bipolar disorder (BP) are two of the most severe and incapacitating mental disorders. It has been questioned whether these two conditions designate distinct illnesses with different etiologies or whether they represent different ends of a clinical spectrum with a common etiology. This study compares social and clinical characteristics of 84 SC and 84 BP subjects from the Costa Rican Central Valley (CRCV) using information from the DIGS, FIGS and psychiatric records. Each of these subjects had a best estimate lifetime consensus diagnosis of either bipolar type I or SC. Subjects with SC differed from subjects with BP in social adjustment measures like marital and employment status, and number of children. Both groups were very similar in years of education, age of onset of their illness, history of other psychiatric co-morbidities, and treatment received. The high percentage of psychosis in the BP group (97.6%) may largely explain the similarities found between groups in their clinical characteristics. The differences in social and functional decline support the original dichotomy described by Kraepelin based on chronicity and periodicity between these two psychotic disorders. [ABSTRACT FROM AUTHOR]
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- 2010
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326. The serotonin transporter 5-HTTPR polymorphism is associated with current and lifetime depression in persons with chronic psychotic disorders.
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Contreras, J., Hare, L., Camarena, B., Glahn, D., Dassori, A., Medina, R., Contreras, S., Ramirez, M., Armas, R., Munoz, R., Mendoza, R., Raventos, H., Ontiveros, A., Nicolini, H., Palmer, R., and Escamilla, M.
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PSYCHOSES , *MENTAL depression , *SEROTONIN - Abstract
Objective: Variation in the serotonin transporter gene (SLC6A4) promoter region has been shown to influence depression in persons who have been exposed to a number of stressful life events. Method: We evaluated whether genetic variation in 5-HTTLPR, influences current depression, lifetime history of depression and quantitative measures of depression in persons with chronic psychotic disorders. This is an association study of a genetic variant with quantitative and categorical definitions of depression conducted in the southwest US, Mexico and Costa Rica. We analyzed 260 subjects with a history of psychosis, from a sample of 129 families. Results: We found that persons carrying at least one short allele had a statistically significant increased lifetime risk for depressive syndromes ( P < 0.02, odds ratio 2.18, 95% CI 1.10–4.20). Conclusion: The ‘ss’ or ‘sl’ genotype at the 5-HTTLPR promoter polymorphic locus increases the risk of psychotic individuals to develop major depression during the course of their illness. [ABSTRACT FROM AUTHOR]
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- 2009
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327. The epsin 4 gene is associated with psychotic disorders in families of Latin American origin
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Escamilla, Michael, Lee, Byung Dae, Ontiveros, Alfonso, Raventos, Henriette, Nicolini, Humberto, Mendoza, Ricardo, Jerez, Alvaro, Munoz, Rodrigo, Medina, Rolando, Figueroa, Andres, Walss-Bass, Consuelo, Armas, Regina, Contreras, Salvador, Ramirez, Mercedes E., and Dassori, Albana
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PSYCHOSES , *LATIN Americans , *GENETIC polymorphisms , *SCHIZOPHRENIA , *PHENOTYPES , *ASSOCIATION tests , *PATHOLOGICAL psychology , *DISEASES , *GENETICS - Abstract
Abstract: This study attempted to replicate evidence for association of the Epsin 4 gene (which encodes enthoprotin, a protein involved in vesicular transport) to schizophrenia in a new sample of families segregating schizophrenia drawn from the Latin American population. 1423 subjects (767 with a history of psychosis) from 337 Latino families were genotyped using three single nucleotide polymorphisms (SNPs) spanning the Epsin 4 gene. A family based association test was utilized to test for association of these SNPs to the phenotypes of psychosis and schizophrenia. Haplotypes defined by these three SNPs showed significant association to the phenotype of psychosis in this sample (global p value=0.014, bi-allelic p value=0.047). Variation in the Epsin 4 gene is significantly associated with psychotic disorder in this Latino population. This provides additional support for the involvement of enthoprotin in the pathogenesis of schizophrenia and other psychotic disorders. [Copyright &y& Elsevier]
- Published
- 2008
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328. TGFB-induced factor (TGIF): a candidate gene for psychosis on chromosome 18p.
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Chavarría-Siles, I., Walss-Bass, C., Quezada, P., Dassori, A., Contreras, S., Medina, R., Ramírez, M., Armas, R., Salazar, R., Leach, R. J., Raventos, H., and Escamilla, M. A.
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SCHIZOPHRENIA , *BIPOLAR disorder , *PSYCHOSES , *GENES , *CHROMOSOMES - Abstract
Schizophrenia (SC) and bipolar disorder (BP) share many clinical features, among them psychosis. We previously identified a putative gene locus for psychosis on chromosome 18p in a sample from the Central Valley of Costa Rica (CVCR) population. The present study replicated the association to a specific allele of microsatellite marker D18S63 on 18p11.3, using a newly collected sample from the CVCR. A combined analysis of both samples, plus additional subjects, showed that this specific allele on D18S63, which lies within an intron on the TGFB-induced factor (TGIF) gene, is strongly associated (P-value=0.0005) with psychosis. Eleven additional SNP markers, spanning five genes in the region, were analyzed in the combined sample from the CVCR. Only the four SNPs within the TGIF gene were in strong linkage disequilibrium with D18S63 (D′=1.00). A specific haplotype for all five markers within the TGIF gene showed evidence of association (P-value=0.011) to psychosis. A second, distinct haplotype, containing a newly identified nonsynonymous polymorphism in exon 5 of the TGIF gene, showed a nonsignificant trend towards association to psychosis (P-value=0.077). TGIF is involved in neurodevelopment, neuron survival and controls the expression of dopamine receptors. Altogether, our results point to the possible involvement of TGIF in the pathophysiology of psychotic disorders in the CVCR population.Molecular Psychiatry (2007) 12, 1033–1041; doi:10.1038/sj.mp.4001997; published online 17 April 2007 [ABSTRACT FROM AUTHOR]
- Published
- 2007
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329. Malic enzyme 2 and susceptibility to psychosis and mania
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Dae Lee, Byung, Walss-Bass, Consuelo, Thompson, Peter M., Dassori, Albana, Montero, Patricia A., Medina, Rolando, Contreras, Salvador, Armas, Regina, Ramirez, Mercedes, Pereira, Mariana, Salazar, Rodolfo, Leach, Robin J., Quezada, Paulina, Raventos, Henriette, and Escamilla, Michael A.
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ENZYMES , *PSYCHOSES , *MANIA , *GENES - Abstract
Abstract: Previous studies have identified a putative gene locus for both schizophrenia and bipolar disorder in the chromosome 18q21 region. To identify candidate genes associated with these disorders we completed fine mapping analyses (using microsatellite markers) in 152 families from the Central Valley of Costa Rica (CVCR) (376 total subjects, 151 with a history of psychosis, 97 with a history of mania). Microsatellite analyses showed evidence of association at two contiguous markers, both located at the same genetic distance and spanning approximately 11 known genes. In a corollary gene expression study, one of these genes, malic enzyme 2 (ME2), showed levels of gene expression 5.6-fold lower in anterior cingulate tissue from post-mortem bipolar brains. Subsequent analysis of individual SNPs in strong linkage disequilibrium with the ME2 gene revealed one SNP and one haplotype associated with the phenotype of psychosis in the CVCR sample. ME2 interacts directly with the malate shuttle system, which has been shown to be altered in schizophrenia and bipolar disorder, and has roles in neuronal synthesis of glutamate and γ-amino butyric acid. The present study suggests that genetic variation in or near the ME2 gene is associated with both psychotic and manic disorders, including schizophrenia and bipolar disorder. [Copyright &y& Elsevier]
- Published
- 2007
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330. A Novel Missense Mutation in the Transmembrane Domain of Neuregulin 1 is Associated with Schizophrenia
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Walss-Bass, Consuelo, Liu, Wei, Lew, Debbie F., Villegas, Ramon, Montero, Patricia, Dassori, Albana, Leach, Robin J., Almasy, Laura, Escamilla, Michael, and Raventos, Henriette
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GENETIC mutation , *SCHIZOPHRENIA , *GENES , *GENETIC polymorphisms , *DISEASE susceptibility - Abstract
Background: Although genetic factors are known to play an important role in schizophrenia, the identification of genes involved in this disorder has remained elusive. The neuregulin 1 gene is among the few candidate genes to have been implicated in schizophrenia susceptibility in several populations. However, no causal mutations within this gene have been identified. Methods: In attempts to identify polymorphisms within the neuregulin 1 gene, we performed DNA sequencing using 12 subjects with a history of psychosis from the Central Valley of Costa Rica. DNA genotyping and association studies were then performed in an extended cohort of 142 affected individuals and their relatives from the same population. Results: We identified a novel missense mutation (Val to Leu) in exon 11, which codes for the transmembrane region of the neuregulin 1 protein. Association analysis by the Family Based Association Test (FBAT) revealed that this mutation is associated with psychosis (p = .0049) and schizophrenia (p = .0191) in this population. Conclusions: We report the finding of a missense mutation in the neuregulin 1 gene associated with schizophrenia. Additional analyses of an independent sample as well as detailed functional studies should be performed to determine the relevance of this novel polymorphism to the pathophysiology of schizophrenia. [Copyright &y& Elsevier]
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- 2006
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331. Association analyses of the neuregulin 1 gene with schizophrenia and manic psychosis in a Hispanic population.
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Walss‐Bass, C., Raventos, H., Montero, A. P., Armas, R., Dassori, A., Contreras, S., Liu, W., Medina, R., Levinson, D. F., Pereira, M., Leach, R. J., Almasy, L., and Escamilla, M. A.
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SCHIZOPHRENIA , *PSYCHOSES , *GENES , *BIPOLAR disorder - Abstract
Objective: This study used the population of the Central Valley of Costa Rica (CVCR) and phenotyping strategies alternative to DSMIV classifications to investigate the association of neuregulin 1 with schizophrenia. Method: Using 134 family trios with a history of psychosis, we genotyped six of the seven markers originally identified to be associated with schizophrenia in Iceland. Results: The neuregulin Icelandic haplotype was not associated with schizophrenia in the CVCR population. However, a novel haplotype was found to be overrepresented in subjects with functional psychosis (global P-value > 0.05). Stratification of the sample by history of mania suggests that this haplotype may be preferentially over-transmitted to persons with a history of manic psychosis. Conclusion: These results suggest that the neuregulin 1 gene is unlikely to play a major role in predisposing to schizophrenia in the CVCR. Further studies in the CVCR and other Latin American populations should be performed in order to corroborate these findings. [ABSTRACT FROM AUTHOR]
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- 2006
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332. Postfazione. Progetto, architettura, tecnica
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LOSASSO, MARIO ROSARIO, E. DASSORI, and Losasso, MARIO ROSARIO
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Architettura ,progettazione tecnologica ,tecnica - Published
- 2015
333. Optimización de la distribución de catalizadores en hidrotratamiento de destilados medios
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Elisa Marisol Verruschi, Quintana Martín, Francisco, and Dassori, Carlos Gustavo
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Química ,Combustibles Fósiles - Abstract
Con el enfoque creciente para reducir el contenido de sulfurados y aromáticos en los combustibles, el proceso de hidrotratamiento de destilados medios se hace cada día más importante en las refinerías. Existen diferentes tecnologías para la remoción de sulfurados y aromáticos, y una de las más usadas es el proceso donde se le agrega hidrógeno al combustible para su remoción. Estas tendencias son: la mejora de la actividad del catalizador, a través de la formulación de nuevos catalizadores; adaptación de la reacción y de las condiciones del proceso; diseño de nuevas configuraciones de reactores y desarrollo de nuevos procesos. En la parte de diseño de configuraciones de reactores nuevos, se tiene diferentes propuestas para el diseño de nuevos reactores industriales. Una de estas propuestas es colocar en un único reactor, diferentes tipos de catalizadores, el cual puede ser operado en flujo en equicorriente y en flujo en contra-corriente. En función de lo antes expuesto, el objetivo principal del presente trabajo fue desarrollar una metodología que permita obtener una propuesta de la mejor configuración de lechos catalíticos con dos tipos de catalizadores diferentes para un reactor de hidrodesulfuracion de gasóleo, a través de la propuesta de un modelo que permita obtener la mejor distribución de dos tipos de lechos catalíticos el reactor, tal que estudie la existencia o no y la selección de un tipo de catalizador, y genere como resultado la mejor combinación de catalizadores en el reactor y el tamaño del equipo, minimizando el costo total anual. La metodología general propuesta consta de diferentes etapas. La primera fue el desarrollo de un modelo de simulación detallado para un reactor del proceso de hidrotratamiento de gasóleo con reacciones químicas en las fases líquida y gaseosa, considerando el efecto de la transferencia de masa gas-líquido, la eficiencia de mojado y un factor de efectividad global en el sistema. Luego se evaluó los coeficientes de las velocidades de reacción en base a datos experimentales modificando los que aparecen en la bibliografía, y se simplificó el modelo sin detrimento de la bondad de los resultados. El modelo anterior permite obtener los datos de entrada al modelo de optimización de la red de reactores. Como paso previo al modelo de optimización estocástica se desarrolló un modelo de optimización determinista y finalmente se desarrolló el modelo de optimización bajo incertidumbre basado en programación matemática estocástica no lineal entera mixta, el cual proporciona el mejor diseño del reactor, tipos de catalizadores incluidos, de manera que minimice el consumo de hidrógeno, los costos del catalizador y maximice el tiempo de vida del catalizador. Entre los resultados obtenidos se tiene que se desarrolló el modelo matemático detallado del reactor de hidrotratamiento de destilados medios, el cual, se representó a través de un modelo pseudohomogéneo, que es la característica de los modelos que incorporan el factor de efectividad global El sistema reactivo estudiado fue la reacción de eliminación del sulfurados en compuestos aromáticos y las reacciones de hidrogenación de los compuestos diaromáticos y monoaromáticos a naftenos. Se realizó una simulación isotérmica y adiabática a nivel de planta piloto y una a nivel de planta comercial. Los datos utilizados pertenecen a un experimento a nivel de planta piloto y fueron escalados a nivel de planta comercial. La simulación a nivel de planta piloto se realizó considerando el uso de inertes no porosos, para así lograr un comportamiento similar al de la planta comercial, con respecto a mojado pobre, efecto de pared, retro mezclado de líquido, efectos de transferencia de masa y efectos de la temperatura. En esta etapa se determinó, la composición de la corriente de salida y las velocidades de operación del reactor. Asumiendo que se mantiene la velocidad espacial igual para cada nivel, se realizó el escalamiento a nivel comercial, lo que permitió obtener las nuevas velocidades de operación del reactor. Los datos obtenidos en la simulación en escala de planta comercial, fueron utilizados como datos de entrada a los modelos de optimización determinista y la optimización estocástica. Adicionalmente, se desarrolló la optimización determinista y estocástica del reactor, donde se propuso una metodología para desarrollar optimización no lineal en el reactor de hidrotratamiento de gasóleo con el objetivo de proponer el diseño óptimo para la síntesis de un reactor de hidrotratamiento de gasóleo indicando la distribución del tipo de catalizador, longitud y diámetro del lecho catalítico y conversión de los reactivos, mediante el uso de la química básica a través de propuesta de las reacciones que ocurren en el sistema en función del tipo de catalizador. Se trabajó con dos casos de operación, para obtener el diseño conceptual del reactor en cada uno de los casos y poder establecer así, las tendencias de los resultados obtenidos. La condición de operación que se varió fue el flujo de alimentación del gasóleo. En el caso determinista, el flujo de alimentación seleccionado es único, y para el caso estocástico, es la esperanza matemática de los flujos de alimentación de gasóleos seleccionados. Al comparar los resultados del modelo determinista con los resultados del modelo estocástico se observa, que los resultados del modelo estocástico son más robustos que los del modelo determinista. En el caso del modelo estocástico se pueden observar las tendencias de las opciones de configuración de distribución de uno o dos tipos de catalizadores en el lecho catalítico del reactor, desde dos criterios: uno de calidad y el otro de operación. El primero es la conversión de aromáticos sulfurados y la segunda es el consumo de hidrógeno, este último permite proyectar las tendencias de los costes de operación con respecto al consumo de hidrógeno. En el caso del modelo determinista solo se pudo establecer un único criterio para observar las tendencias, el cual fue el criterio de calidad del gasóleo, medido en conversión del aromático azufrado. En ambos modelos los resultados de las tendencias con respecto al criterio de calidad fue mismo, se obtiene mejor conversión cuando el resultado factible es la opción de trabajar con un reactor con una combinación de dos tipos de catalizadores. SUMMARY With the increasing approach to reduce the sulfated and aromatic content in fuels, the process of hydrotreating the average distillates is gaining a mayor importance everyday in refineries. There are different technologies for the removal of sulfated and aromatic one of the most used processes is when hydrogen is added to fuel. These tendencies are: the improvement of the activity of the catalyst through the formulation of new catalysts; adaptation of the reaction and the conditions of the process; design of new configurations of reactors and development of new processes. In the area of design of configurations of new reactors, there are different proposals for the design from new industrial reactors. One of these proposals is to place in a unique reactor, different types from catalysts which can be operated against the cocurrent flow and crosscurrent flow. Based on the previously exposed, the primary target of the present work was to develop a methodology that that will allow us to obtain a proposal of the best configuration of catalytic beds, with two types of different catalysts for a reactor of hydrodesulfurization of gasoil, through the proposal of a model that allows to obtain the best distribution of two types of catalytic beds the reactor, that will study the existence or not and the selection of a type of catalyst, and as a result will generate the best combination of catalysts in the reactor and the size of the equipment, diminishing the annual total cost. The general methodology proposed consists of different stages. First was the development of a detailed model of simulation for a reactor of the process of gasoil hydrotreating with chemical reactions in the liquid phases and gaseous, considering the effect of the gas-liquid mass transfer, the efficiency of wet and a factor of global effectiveness in the system. The coefficients of the reaction rates where evaluated on the basis of experimental data modifying those that appear in the bibliography, and the model without damage to the kindness of the results was simplified. The previous model allows to obtain the input data to the model of optimization of the network of reactors. As previous step to the model of stochastic optimization a model of determinist optimization was developed and finally the model of optimization under uncertainty was developed based on nonlinear mixed stochastic mathematical programming, which provides the best reactor design, including types catalysts, so that it diminishes the hydrogen consumption, the costs of the catalyst and maximize the time of life of the catalyst. According to the obtained results, a detailed mathematical model of the reactor of hydrotreating of average distillates, has to be developed, which, imagined through a pseudohomogenous model, that is the characteristic of the models that incorporate the factor of global effectiveness. The studied reactive system was the reaction of elimination of sulfur in aromatic compounds and the reaction of hydrogenation of diaromatic and monoaromatic compounds to naftenos. An isothermal and adiabatic plant. The used data belong to an experiment concerning pilot plant and were scaled concerning commercial plant. The simulation concerning pilot plant was realized considering the use of inert nonporous, thus to obtain a behavior similar to the one of the commercial plant, concerning wet poor, wall effect, retro mixed of liquid, effects of mass transfer and temperature effects. In this stage it was determined, the composition of the exiting stream and the speeds of operation of the reactor. Assuming the space speed is stays equal for each level, the scale at a commercial level was realized, which allowed to obtain the new speeds of operation of the reactor. The data collected in the simulation in scale of commercial plant, were used like input data to the models of determinist optimization and the stochastic optimization. Additionally, the determinist optimization and stochastic of the reactor was developed, where a methodology to develop nonlinear optimization in the reactor of hydrotreating gasoil was proposed, with the aim of proposing the optimal design for the synthesis of a reactor of gasoil hydrotreating indicating the distribution of the type of catalyst, length and diameter of catalytic bed and conversion of the reagents, by means of the use of basic chemistry through proposal of the reactions that happen in the system based on the type of catalyst. Two cases of operation were worked with, to obtain the conceptual design of the reactor in each one of the cases and power thus of establishing, the tendencies of the obtained results. The condition of operation that varied was the flow of feeding of the gasoil. In the determinist case, the selected flow of feeding is unique, and for the stochastic case, it is the mathematical hope of the flows of selected gasoil feeding. When comparing the results of the determinist model with the results of the stochastic model we can observe, that the results of the stochastic model are more robust than those of the determinist model. In the case of the stochastic model the tendencies of the options of configuration of distribution of one can be observed or two types of catalysts in the catalytic bed of the reactor, from two criteria: one of quality and the other of operation. First it is the conversion of aromatic sulfurated and second it is the hydrogen consumption, this last one allows to project the tendencies of the costs of operation with respect to the hydrogen consumption. In the case of the determinist model a unique criteria could only be established to observe the tendencies, which were the criteria of quality of the gasoil, measured in aromatic conversion of the sulfured one. In both models the results of the tendencies with respect to the quality criteria were the same, a better conversion was obtained when the feasible result is the option to work with a reactor with a combination of two types of catalysts.
- Published
- 2008
334. Caracterización de las corrientes del reactor del proceso de hidrotratamiento de gasóleo para su aplicación a un nuevo modelo cinético predictivo
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Yris Kenelma Gonzalez Triana, Zubizarreta Enríquez, José Ignacio, and Gustavo Dassori, Carlos
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Combustibles Fósiles ,Ingeniería Industrial - Abstract
El hidrotratamiento de gasóleo es uno de los procesos de refinación,sometido a mejora continuas, en el ámbito de la creciente demanda del diesel y el incremento de las restricciones ambientales. En este marco, las nuevas tendencias de este proceso se dirigen a proponer nuevos esquemas de procesamiento, cuyo desarrollo requieren disponer de modelos que coadyuven a predecir la aracterización de las corrientes involucradas. En el desarrollo de modelos de procesos que traten fracciones pesadas, como el gasóleo, la limitante es la falta de detalle molecular, que ofrecen las técnicas de análisis de mayor aplicación, como la cromatografía de gases o espectrometría de masa. Una solución alternativa es reconstruir el detalle molecular aplicando estrategias de agrupamiento continuo, que consisten en definir a priori una función de distribución continua, que refleje la composición de un grupo de moléculas respecto a una variable de interés fácilmente cuantificable. En tal sentido en este trabajo se desarrollo una metodología para la caracterización de un fracción pesada del petróleo, desde el enfoque del agrupamiento continuo, que ha sido aplicada a un modelo cinético predictivo del proceso de hidrotratamiento de gasóleo, mediante el desarrollo de tres módulos, i) el desagrupamiento de la alimentación de acuerdo a la estrategia continua, ii) la evaluación de la transformación de las reacciones principales con un balance molar discreto-continuo, iii) la predicción de las propiedades importantes para la caracterización del gasóleo hidrotratado. En este orden, se abordan los objetivos que persiguieron estos módulos, separadamente.
335. Fine-mapping scan of bipolar disorder susceptibility loci in Latino pedigrees.
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Gonzalez S, Villa E, Rodriguez M, Ramirez M, Zavala J, Armas R, Dassori A, Contreras J, Raventós H, Flores D, Jerez A, Ontiveros A, Nicolini H, and Escamilla M
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- Actin-Related Protein 3 genetics, Actin-Related Protein 3 metabolism, Adult, Bipolar Disorder psychology, Chromosome Mapping methods, Costa Rica, Dipeptidyl-Peptidases and Tripeptidyl-Peptidases genetics, Dipeptidyl-Peptidases and Tripeptidyl-Peptidases metabolism, Female, Genetic Linkage genetics, Genetic Predisposition to Disease genetics, Genome-Wide Association Study methods, Genotype, Guatemala, Hispanic or Latino genetics, Humans, Lod Score, Male, Mexico, Middle Aged, Muscle Proteins genetics, Muscle Proteins metabolism, Polymorphism, Single Nucleotide genetics, Psychotic Disorders psychology, SKP Cullin F-Box Protein Ligases genetics, SKP Cullin F-Box Protein Ligases metabolism, United States, Bipolar Disorder genetics, Chromosomes, Human, Pair 2 genetics, Psychotic Disorders genetics
- Abstract
We previously identified bipolar disorder (BD) susceptibility loci on 8q24, 14q32, and 2q12-14 in a genome-wide nonparametric linkage screen in a Latino cohort. We now perform a fine mapping analysis using a dense map of additional SNPs to identify BD susceptibility genes within these regions. One thousand nine hundred and thirty-eight individuals with Latino ancestry (880 individuals with BD Type I or Schizoaffective, Bipolar Type) from 416 Latino pedigrees from the United States, Mexico, Costa Rica, and Guatemala were genotyped with 3,074 SNPs to provide dense coverage of the 8q24 (11.5 cM), 14q32 (7.5 cM), and 2q12-14 (6.5 cM) chromosomal loci. Single-marker association tests in the presence of linkage were performed using the LAMP software. The top linkage peak (rs7834818; LOD = 5.08, p = 3.30E - 5) and associated single marker (rs2280915, p = 2.70E - 12) were located within FBXO32 on 8q24. On chromosome 2, the top linkage peak (rs6750326; LOD = 5.06, p = 3.50E - 5) and associated single marker (rs11887088, p = 2.90E - 6) were located in intragenic regions near ACTR3 and DPP10. None of the additional markers in the region around chromosome 14q32 met significance levels for linkage or association. We identified six SNPs on 2q12-q14 and one SNP in FBXO32 on 8q24 that were significantly associated with BD in this Latino cohort., (© 2019 Wiley Periodicals, Inc.)
- Published
- 2019
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336. Neurocognitive endophenotypes for bipolar disorder identified in multiplex multigenerational families.
- Author
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Glahn DC, Almasy L, Barguil M, Hare E, Peralta JM, Kent JW Jr, Dassori A, Contreras J, Pacheco A, Lanzagorta N, Nicolini H, Raventós H, and Escamilla MA
- Subjects
- Adult, Alcoholism epidemiology, Alcoholism genetics, Alcoholism physiopathology, Anxiety Disorders epidemiology, Anxiety Disorders genetics, Anxiety Disorders physiopathology, Comorbidity, Diagnostic and Statistical Manual of Mental Disorders, Face, Female, Genetic Predisposition to Disease, Genetic Testing methods, Genetic Variation genetics, Humans, Male, Neuropsychological Tests, Recognition, Psychology, Social Environment, Bipolar Disorder epidemiology, Bipolar Disorder genetics, Bipolar Disorder physiopathology, Brain physiopathology, Cognition Disorders epidemiology, Cognition Disorders genetics, Cognition Disorders physiopathology, Gene Expression genetics, Pedigree, Phenotype
- Abstract
Context: Although genetic influences on bipolar disorder are well established, localization of genes that predispose to the illness has proven difficult. Given that genes predisposing to bipolar disorder may be transmitted without expression of the categorical clinical phenotype, a strategy for identifying risk genes is to identify and map quantitative intermediate phenotypes or endophenotypes., Objective: To adjudicate neurocognitive endophenotypes for bipolar disorder., Design: All participants underwent diagnostic interviews and comprehensive neurocognitive evaluations. Neurocognitive measures found to be heritable were entered into analyses designed to determine which test results are impaired in affected individuals, are sensitive to the genetic liability for the illness, and are genetically correlated with affection status., Setting: Central valley of Costa Rica; Mexico City, Mexico; and San Antonio, Texas., Participants: Seven hundred nine Latino individuals participated in the study. Of these, 660 were members of extended pedigrees with at least 2 siblings diagnosed as having bipolar disorder (n = 230). The remaining subjects were community control subjects drawn from each site who did not have a personal or family history of bipolar disorder or schizophrenia., Main Outcome Measure: Neurocognitive test performance., Results: Two of the 22 neurocognitive variables were not significantly heritable and were excluded from subsequent analyses. Patients with bipolar disorder were impaired on 6 cognitive measures compared with nonrelated healthy controls. Nonbipolar first-degree relatives were impaired on 5 of these, and the following 3 tests were genetically correlated with affection status: Digit Symbol Coding Task, Object Delayed Response Task, and immediate facial memory., Conclusion: This large-scale extended pedigree study of cognitive functioning in bipolar disorder identifies measures of processing speed, working memory, and declarative (facial) memory as candidate endophenotypes for bipolar disorder.
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- 2010
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337. APOE-epsilon3 and APOE-219G haplotypes increase the risk for schizophrenia in sibling pairs.
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Tovilla-Zarate C, Medellin BC, Fresan A, Apiquian R, Dassori A, Rolando M, Escamilla M, and Nicolini H
- Subjects
- Alleles, Chi-Square Distribution, Female, Genetic Linkage genetics, Genotype, Humans, Male, Mexico, Patient Selection, Reverse Transcriptase Polymerase Chain Reaction, Siblings, Apolipoproteins E genetics, Genetic Predisposition to Disease genetics, Haplotypes genetics, Schizophrenia genetics
- Abstract
To investigate the role of the apolipoprotein E (APOE) gene in schizophrenia, the authors analyzed 60 families with this mental disorder. An association in the presence of linkage test (APL) and haplotypes analysis were undertaken using the APL v1.1 software. A global allelic transmitted was significant for APOE-epsilon3 (chi(2)=6.24, p=0.01); this allele is mainly carried by female patients (chi(2)=8.33, p=0.003), whereas APOE-219G is preferentially transmitted in males (p=0.02). Furthermore, our results show that haplotypes APOE-epsilon3/APOE-219G are associated with schizophrenia (chi(2)=11.61, p=0.01). These results provide evidence that the APOE gene may play a significant role in the etiology of schizophrenia in the Mexican population.
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- 2009
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338. Public-academic partnerships: research in community mental health settings: a practicum experience for researchers.
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Miller AL, Lopez L, Gonzalez JM, Dassori A, Bond G, and Velligan D
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- Focus Groups, Humans, Program Development, Trust, Community Mental Health Services, Cooperative Behavior, Health Personnel, Research Personnel education, Universities
- Abstract
Applying research findings to community mental health practices is slowed by provider concerns that research participants often differ from community populations in duration of illness, comorbid conditions, and illness severity. Selecting participants from community settings makes research results demonstrably relevant, but researchers and community providers can be mistrustful of one another, feeling that the other has little understanding of their needs and work. This mistrust impedes patient referrals for research. This column describes a program to increase researcher knowledge of community clinic procedures through structured interactions with clinic personnel. Follow-up interviews indicate improved attitudes and cooperation of researchers and community providers.
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- 2008
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339. Malic enzyme 2 and susceptibility to psychosis and mania.
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Lee BD, Walss-Bass C, Thompson PM, Dassori A, Montero PA, Medina R, Contreras S, Armas R, Ramirez M, Pereira M, Salazar R, Leach RJ, Quezada P, Raventos H, and Escamilla MA
- Subjects
- Adult, Bipolar Disorder pathology, Brain pathology, Chromosome Mapping, Chromosomes, Human, Pair 18, Costa Rica, Depressive Disorder, Major pathology, Female, Founder Effect, Genetic Variation, Genetics, Population, Genotype, Haplotypes, Humans, Linkage Disequilibrium, Male, Microsatellite Repeats, Middle Aged, Phenotype, Polymorphism, Single Nucleotide genetics, Psychotic Disorders pathology, Schizophrenia pathology, Bipolar Disorder genetics, Depressive Disorder, Major genetics, Genetic Predisposition to Disease genetics, Malate Dehydrogenase genetics, Psychotic Disorders genetics, Schizophrenia genetics
- Abstract
Previous studies have identified a putative gene locus for both schizophrenia and bipolar disorder in the chromosome 18q21 region. To identify candidate genes associated with these disorders we completed fine mapping analyses (using microsatellite markers) in 152 families from the Central Valley of Costa Rica (CVCR) (376 total subjects, 151 with a history of psychosis, 97 with a history of mania). Microsatellite analyses showed evidence of association at two contiguous markers, both located at the same genetic distance and spanning approximately 11 known genes. In a corollary gene expression study, one of these genes, malic enzyme 2 (ME2), showed levels of gene expression 5.6-fold lower in anterior cingulate tissue from post-mortem bipolar brains. Subsequent analysis of individual SNPs in strong linkage disequilibrium with the ME2 gene revealed one SNP and one haplotype associated with the phenotype of psychosis in the CVCR sample. ME2 interacts directly with the malate shuttle system, which has been shown to be altered in schizophrenia and bipolar disorder, and has roles in neuronal synthesis of glutamate and gamma-amino butyric acid. The present study suggests that genetic variation in or near the ME2 gene is associated with both psychotic and manic disorders, including schizophrenia and bipolar disorder.
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- 2007
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340. A randomized single-blind pilot study of compensatory strategies in schizophrenia outpatients.
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Velligan DI, Prihoda TJ, Ritch JL, Maples N, Bow-Thomas CC, and Dassori A
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- Adult, Ambulatory Care, Cognition Disorders etiology, Cognition Disorders rehabilitation, Cognitive Behavioral Therapy, Female, Follow-Up Studies, Humans, Male, Pilot Projects, Quality of Life, Schizophrenia complications, Single-Blind Method, Schizophrenia therapy
- Abstract
In a previous study, we found that cognitive adaptation training (CAT)--a manual-driven program of environmental supports designed to bypass cognitive deficits--improved multiple domains of outcome in schizophrenia patients recently discharged from a State psychiatric facility. The present study examined the efficacy of CAT in a sample of patients who had been in the community at least 3 months. Forty-five medicated schizophrenia patients were randomly assigned for 9 months to one of three conditions: (1) CAT, (2) a condition that controlled for therapist time and provided environmental changes unrelated to cognitive deficits, or (3) follow-up only. Comprehensive assessments were conducted every 3 months by blinded raters. Results of repeated measures analyses of covariance for mixed models indicated that patients participating in CAT had better adaptive function and quality of life, and fewer positive symptoms than those in the two non-CAT conditions. Results indicate that compensatory strategies may improve various outcomes in schizophrenia outpatients.
- Published
- 2002
- Full Text
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