Papers by Luis Fanner Alba Pérez
for helpful comments. The views expressed herein are those of the authors and not necessarily tho... more for helpful comments. The views expressed herein are those of the authors and not necessarily those of the Federal Reserve Bank of Minneapolis, the Federal Reserve System, or the National Bureau of Economic Research. We have not received funding for this research. NBER working papers are circulated for discussion and comment purposes. They have not been peer-reviewed or been subject to the review by the NBER Board of Directors that accompanies official NBER publications.
Dossier (Magister en Arquitectura y Urbanismo), Facultad de Arquitectura y Diseno, Pereira, 2020
Journal of Monetary Economics, 2021
Iovino, La'O and Mascarenhas (forthcoming) ask two important questions regarding the optimal cond... more Iovino, La'O and Mascarenhas (forthcoming) ask two important questions regarding the optimal conduct of monetary policy: Should the central bank's policy depend on information the central bank has that is not available to markets? And should the central bank disclose information that it has but market participants do not? Iovino, La'O and Mascarenhas answer these questions using a simple, stylized model with one-period price stickiness. They show that efficient equilibria can be sustained regardless of whether policy depends on the central bank's information and regardless of its disclosure policy. We explain the logic behind their irrelevance result and show that if restrictions are imposed on equilibria, then monetary policy should in general depend on the central bank's information. Finally, we offer some speculative answers to their questions and discuss the sense in which policy is converging towards theory.
Procesos Urbanos, 2020
El artículo responde a la pregunta: ¿Cómo reintegrar la Fábrica a un Sistema de Ciudad? Como luga... more El artículo responde a la pregunta: ¿Cómo reintegrar la Fábrica a un Sistema de Ciudad? Como lugar de estudio se estableció la Zona Industrial de La Tebaida, Quindío. La metodología parte de un análisis cualitativo del lugar y una búsqueda de herramientas que conceptualicen un modelo de transformación urbana. Se establecen los conceptos de Parasitismo y Regeneración Urbana, como instrumentos que permiten reinterpretar el espacio y función de la Fábrica en torno a las dinámicas urbanas. Los resultados determinan un modelo urbano conceptual, en el cual se recicla la Fábrica y se le otorga valor, permitiendo que haga parte del sistema vivo de ciudad.
World Journal of Gastroenterology, 2006
AIM: To evaluate the potential association between p53 codon 72 polymorphism and sporadic colorec... more AIM: To evaluate the potential association between p53 codon 72 polymorphism and sporadic colorectal adenocarcinoma development, and human papillomavirus (HPV) infection. METHODS: One-hundred and nine controls and 53 patients with colon cancer from the city of La Plata, Argentina were analyzed. p53 codon 72 genotypes and HPV infection were identifi ed using allele-specifi c polymerase chain reaction and nested polymerase chain reaction, respectively. RESULTS: The differences in the distribution of p53 codon 72 polymorphism between the cases and controls were statistically significant. The arginine allele had a prevalence of 0.65 in controls and 0.77 in cases. The corresponding odds ratio for the homozygous arginine genotype was 2.08 (95% CI , 1.06-4.05; P <0.05). Lack of association was found between p53 polymorphism and HPV infection in the set of adenocarcinomas. CONCLUSION: The fi ndings of the present study indicate that p53 codon 72 arginine homozygous genotype may represent a genetic predisposing factor for colon cancer development. However, further studies are needed in order to elucidate the role of p53 codon 72 polymorphism in colorectal cancer.
Revista Icade Revista De Las Facultades De Derecho Y Ciencias Economicas Y Empresariales, May 20, 2013
Apoptosis is the major component of programmed cell death, an essential process in embryogenesis,... more Apoptosis is the major component of programmed cell death, an essential process in embryogenesis, tissue turnover and proper function of the immune system. Lack of appropriate control is thought to play an important role in several pathologies, such as autoimmune diseases, AIDS and cancer. In malignant tumors, cells gradually acquire resistance to apoptosis and, moreover, develop mechanisms that could induce death cell in immune cells. Emerging interest has given to the Fas/Fas Ligand interaction, a system that triggers the extrinsic pathway of the apoptosis process. Polymorphisms on Fas and FasL have been extensively described. Single nucleotide polymorphisms located in the promoter region of these genes have been found to be related to differential levels of expression. This review discusses the information published on Fas/Fas Ligand polymorphisms and its effect on human cancers, and also presents new data regarding the impact of Fas-670A/G and FasL-844T/C polymorphisms in a cerv...
Cancer genetics, 2011
Epidemiological evidence suggests that genetic factors, such as variants in cancer suppressor gen... more Epidemiological evidence suggests that genetic factors, such as variants in cancer suppressor genes, may play an important role in the etiology of cervical carcinoma. TP53 is an outstanding cell cycle regulator, mutated in most human cancers, and RNASEL is thought to be involved in antiviral and apoptotic responses. To determine whether TP53 Arg72Pro and RNASEL Arg462Gln polymorphisms are associated with susceptibility to cervical cancer, a case-control study of 98 cancer patients and 123 healthy controls was conducted. Cervical samples were genotyped for both polymorphisms by pyrosequencing technology. The association between cervical cancer risk and the studied SNPs was evaluated by logistic regression, and potential gene-gene interactions were studied by Multifactor Dimensionality Reduction analysis. In the single-locus analysis, only the heterozygous TP53 Arg72Pro genotype was significantly associated with the risk of developing a cervical carcinoma, while the RNASEL polymorphis...
Pathology oncology research : POR, 2013
Human Papillomavirus (HPV) is the main cause of cervical cancer and its precursor lesions. Transf... more Human Papillomavirus (HPV) is the main cause of cervical cancer and its precursor lesions. Transformation may be induced by several mechanisms, including oncogene activation and genome instability. Individual differences in DNA damage recognition and repair have been hypothesized to influence cervical cancer risk. The aim of this study was to evaluate whether the double strand break gene polymorphisms XRCC2 R188H…
International Journal of Computational Intelligence Systems, 2008
Evaluation is a process that analyzes elements in order to achieve different objectives such as q... more Evaluation is a process that analyzes elements in order to achieve different objectives such as quality inspection, marketing and other fields in industrial companies. This paper focuses on sensory evaluation where the evaluated items are assessed by a panel of experts according to the knowledge acquired via human senses. In these evaluation processes the information provided by the experts implies uncertainty, vagueness and imprecision. The use of the Fuzzy Linguistic Approach 32 has provided successful results modelling such a type of information. In sensory evaluation it may happen that the panel of experts have more or less degree knowledge of about the evaluated items or indicators. So, it seems suitable that each expert could express their preferences in different linguistic term sets based on their own knowledge. In this paper, we present a sensory evaluation model that manages multigranular linguistic evaluation framework based on a decision analysis scheme. This model will be applied to the sensory evaluation process of Olive Oil.
2007 IEEE International Fuzzy Systems Conference, 2007
In recent years, in the e-commerce area new methods and tools have arisen in order to improve and... more In recent years, in the e-commerce area new methods and tools have arisen in order to improve and customize the e-commerce web sites according to users' necessities and tastes. The most successful tool in this field have been the Recommender Systems. The aim of them is to assist people to find the best alternatives that satisfy their necessities using recommendations, leading them to interesting items, or hiding those useless and unattractive ones. Sometimes these systems face situations where there is a lack of information and this implies unsuccessful results. Although some solutions have been proposed, they present some limitations and drawbacks. In this contribution we present a knowledge-based recommender system that is able to compute successful recommendations using a few numbers of examples about the items that the users are looking for.
Tumor Biology, 2012
Your article is protected by copyright and all rights are held exclusively by International Socie... more Your article is protected by copyright and all rights are held exclusively by International Society of Oncology and BioMarkers (ISOBM). This e-offprint is for personal use only and shall not be self-archived in electronic repositories. If you wish to self-archive your work, please use the accepted author's version for posting to your own website or your institution's repository. You may further deposit the accepted author's version on a funder's repository at a funder's request, provided it is not made publicly available until 12 months after publication.
Journal of Virological Methods, 2005
The aim of the present study was to evaluate the first void urine (FVU) as a non-invasive samplin... more The aim of the present study was to evaluate the first void urine (FVU) as a non-invasive sampling method for HPV detection and genotyping in a high-risk population. Men presenting with HPV associated penile lesions or HPV positive partners attending a urological department in La Plata, Argentina were enrolled for HPV detection and genotyping. DNA from 185 first-void urine samples was evaluated for the presence of HPV by nested polymerase chain reaction using MY09/11 and GP05/06 primers. The viral genotype was analyzed by means of the single-stranded conformation polymorphisms (SSCP) method. Seventy-three percent (135/185) of the FVU specimens were positive for HPV-DNA. The viral prevalence in patients with HPV-DNA positive partners was 68.8% (77/112), and 79.5% (58/73) of patients with penile lesions were found to be HPV positive. The most frequent viral type was HPV-11 (26.7%), followed by HPV-6 (23%), HPV-16 (21.5%), HPV-18 (6%), and HPV-31 (4.4%). In this study, 11.1% (15/135) of the HPV positive specimens were double infections. These results indicate that high-risk HPVs can be found in clinical lesions in a high percentage (43.8%), as simple or double infections. In this sense, the male population represents an important reservoir for the virus and may play a role in the transmission and perpetuation of the infection in the general population. The method described below provides a tool for detection and typing of HPV-DNA using samples obtained by non-invasive techniques and thus easy to obtain.
Colorectal Disease, 2005
Objective The aim of the present work was to evaluate the presence of human papillomavirus genot... more Objective The aim of the present work was to evaluate the presence of human papillomavirus genotypes in malignant and normal mucosa of the colon and rectum in order to determine if a relationship exists between HPV infection and colon neoplasms.Materials and methods Thirty normal colon tissues and 54 sporadic adenocarcinomas were screened for HPV positivity using nested‐PCR. Detection of viral types 6, 11, 16, 18, 33, 34 and 51 was performed by the LIS‐SSCP (Low Ionic Strength‐Single Strand Conformational Polymorphism) procedure.Results Significant differences in high risk HPV infection were found between normal samples and adenocarcinomas (P < 0.001). Among the cases, an inverse association between HPV infection and Dukes staging was also found (P = 0.020). Finally, there was no significant association between HPV and some classical clinicopathological features, although a gradient of infection form rectum to cecum was evident.Conclusion The present study demonstrates that H...
Inlluencia de no-electrolitos y surfactantes no-iónicos en ...
Revista De Obras Publicas Organo Profesional De Los Ingenieros De Caminos Canales Y Puertos, 2006
Riegos Y Drenajes Xxi, 2007
Revista De Psicologia Del Deporte, 1994
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Papers by Luis Fanner Alba Pérez