Detection of news written by the ChatGPT through authorship attribution performed by a Bidirectional LSTM model

The large language based-model chatbot ChatGPT gained a lot of popularity since its launch and has been used in a wide range of situations. This research centers around a particular situation, when the ChatGPT is used to produce news that will be consumed by the population, causing the facilitation in the production of fake news, spread of misinformation and lack of trust in news sources. Aware of these problems, this research aims to build an artificial intelligence model capable of performing authorship attribution on news articles, identifying the ones written by the ChatGPT. To achieve this goal, a dataset containing equal amounts of human and ChatGPT written news was assembled and different natural processing language techniques were used to extract features from it that were used to train, validate and test three models built with different techniques. The best performance was produced by the Bidirectional Long Short Term Memory (LSTM) Neural Network model, achiving 91.57\% accuracy when tested against the data from the testing set

Using computed tomography colonography in patients at high risk of colorectal cancer - a prospective study in a university hospital in South America

OBJECTIVES: The purpose of our study was to report the results of the implementation of computed tomography colonography in a university hospital setting serving a Brazilian population at high risk of colorectal cancer. METHODS: After creating a computed tomography colonography service in our institution, 85 patients at high risk of colorectal cancer underwent computed tomography colonography followed by a same-day optical colonoscopy from September 2010 to May 2012. The overall accuracy of computed tomography colonography in the detection of lesions ≥6 mm was compared to that of optical colonoscopy (direct comparison). All colonic segments were evaluated using quality imaging (amount of liquid and solid residual feces and luminal distension). To assess patient acceptance and preference, a questionnaire was completed before and after the computed tomography colonography and optical colonoscopy. Fisher's exact test was used to measure the correlations between colonic distension, discomfort during the exam, exam preference and interpretation confidence. RESULTS: Thirteen carcinomas and twenty-two lesions ≥6 mm were characterized. The sensitivity, specificity and accuracy of computed tomography colonography were 100%, 98.2% and 98.6%, respectively. Computed tomography colonography was the preferred method of investigation for 85% of patients. The preparation was reported to cause only mild discomfort for 97.6% of patients. According to the questionnaires, there was no significant relationship between colonic distension and discomfort (p>;0.05). Most patients (89%) achieved excellent bowel preparation. There was a statistically significant correlation between the confidence perceived in reading the computed tomography colonography and the quality of the preparation in each colonic segment (p≤0.001). The average effective radiation dose per exam was 7.8 mSv. CONCLUSION: It was possible to institute an efficient computed tomography colonography service at a university hospital that primarily assists patients from the public health system, with high accuracy, good acceptance and effective radiation doses. Our results seem to be comparable to other centers of excellence and fall within acceptable published guidelines, showing that a successful computed tomography colonography program can be reproduced in a South American population screened in a university hospital

Reflexões sobre a inserção da informática na profissão de enfermagem

The paper is an analysis about the impact of introducting informatic tecnology and its consequences in the society, in general professions and mainly, in nursing practice. The authors emphasize the need of major discussions about the insertion of this new technology in nursing profession.O estudo tece algumas considerações reflexivas sobre a inserção da informática na sociedade, nas profissões em geral e na enfermagem, analisando seu impacto e conseqüências, particularmente na prática do enfermeiro. Os autores enfatizam a necessidade de maiores discussões, acerca da incorporação dessa nova tecnologia na profissão

Description Of Rhodnius Marabaensis Sp. N. (hemiptera, Reduviidade, Triatominae) From Pará State, Brazil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Rhodnius marabaensis sp. n. was collected on 12 May 2014 in the Murumurú Environmental Reserve in the city of Marabá, Pará State, Brazil. This study was based on previous consultation of morphological descriptions of 19 Rhodnius species and compared to the identification key for the genus Rhodnius. The examination included specimens from 18 Rhodnius species held in the Brazilian National and International Triatomine Taxonomy Reference Laboratory in the Oswaldo Cruz Institute in Rio de Janeiro, Brazil. The morphological characteristics of the head, thorax, abdomen, genitalia, and eggs have been determined. Rhodnius prolixus and R. robustus were examined in more detail because the BLAST analysis of a cyt-b sequence shows they are closely related to the new species, which also occurs in the northern region of Brazil. The most notable morphological features that distinguish R. marabaensis sp. n. are the keel-shaped apex of the head, the length of the second segment of the antennae, the shapes of the prosternum, mesosternum and metasternum, the set of spots on the abdomen, the male genitalia, the posterior and ventral surfaces of the external female genitalia, and the morphological characteristics of the eggs. Rhodnius jacundaensis Serra, Serra and Von Atzingen (1980) nomen nudum specimens deposited at the Maraba Cultural Center Foundation - MCCF were examined and considered as a synonym of R. marabaensis sp. n. © Eder dos Santos Souza et al.201662145622010/15386-3, FAPESP, Fundação de Amparo à Pesquisa do Estado de São Paulo23038-005285/2011-2012, CAPES, Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorCNPq, Conselho Nacional de Desenvolvimento Científico e TecnológicoFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

Using computed tomography colonography in patients at high risk of colorectal cancer - a prospective study in a university hospital in South America

OBJECTIVES: the purpose of our study was to report the results of the implementation of computed tomography colonography in a university hospital setting serving a Brazilian population at high risk of colorectal cancer.METHODS: After creating a computed tomography colonography service in our institution, 85 patients at high risk of colorectal cancer underwent computed tomography colonography followed by a same-day optical colonoscopy from September 2010 to May 2012. the overall accuracy of computed tomography colonography in the detection of lesions >= 6 mm was compared to that of optical colonoscopy (direct comparison). All colonic segments were evaluated using quality imaging (amount of liquid and solid residual feces and luminal distension). To assess patient acceptance and preference, a questionnaire was completed before and after the computed tomography colonography and optical colonoscopy. Fisher's exact test was used to measure the correlations between colonic distension, discomfort during the exam, exam preference and interpretation confidence.RESULTS: Thirteen carcinomas and twenty-two lesions >= 6 mm were characterized. the sensitivity, specificity and accuracy of computed tomography colonography were 100%, 98.2% and 98.6%, respectively. Computed tomography colonography was the preferred method of investigation for 85% of patients. the preparation was reported to cause only mild discomfort for 97.6% of patients. According to the questionnaires, there was no significant relationship between colonic distension and discomfort (p>0.05). Most patients (89%) achieved excellent bowel preparation. There was a statistically significant correlation between the confidence perceived in reading the computed tomography colonography and the quality of the preparation in each colonic segment (p <= 0.001). the average effective radiation dose per exam was 7.8 mSv.CONCLUSION: It was possible to institute an efficient computed tomography colonography service at a university hospital that primarily assists patients from the public health system, with high accuracy, good acceptance and effective radiation doses. Our results seem to be comparable to other centers of excellence and fall within acceptable published guidelines, showing that a successful computed tomography colonography program can be reproduced in a South American population screened in a university hospital.Universidade Federal de São Paulo, UNIFESP, Dept Diagnost Imaging, Div Abdominal Imaging, São Paulo, BrazilUniversidade Federal de São Paulo, UNIFESP, Dept Surg, Sect Colon & Rectum Surg,Div Gastroenterol, São Paulo, BrazilUniversidade Federal de São Paulo, UNIFESP, Dept Diagnost Imaging, Div Abdominal Imaging, São Paulo, BrazilUniversidade Federal de São Paulo, UNIFESP, Dept Surg, Sect Colon & Rectum Surg,Div Gastroenterol, São Paulo, BrazilWeb of Scienc

Calidad microbiológica de un hidrolizado de pescado de producción casera

Hydrolyzed fish protein can be used in the nutritional treatment of individuals who have limitations in digesting intact protein and in malnourished children. The objective of this study was to determine the microbiological quality of fish hydrolysate obtained by domestic production and subjected to different periods of conservation. Fecal coliforms such as Eschericia coli, mesophilic bacteria such as Salmonella and Staphylococcus aureus, molds, and yeasts were investigated according to the “Compendium of Methods for the Microbiological Examination of Foods” and “Manual de Métodos de Análise Microbiológica de Alimentos e Água.” Fresh samples of hydrolysate from tilapia (Oreochromis niloticus) as well as samples that had been refrigerated (4°C) for 72 h as well as 1 week were analyzed. If the presence/ growth of analyzed microorganisms was detected in any sample, it meant that the quality of the hydrolysate was preserved during its preparation, it was appropriate for consumption, and its safety was guaranteed up to 1 week in refrigeration.Los hidrolizados de pescado pueden servir de suplemento en dietas para personas con deficiencias en la digestión y/o absorción de proteínas, y también, en el tratamiento de niños desnutridos. El objetivo de ésta investigación fue determinar la calidad microbiológica de un hidrolizado de pescado obtenido en condiciones semejantes a la doméstica, sometido a diferentes tiempos de conservación. En muestras del hidrolizado fresco de tilapia (Oreochromis niloticus), sometidas a conservación en temperatura de refrigeración de 4°C por 72 horas por 1 semana, se analizaron coliformes termotolerantes, Escherichia. coli, bacterias mesófilas, Salmonella, Staphylococcus aureus, mohos y levaduras, según los métodos descritos en el “Compendium of Methods for the Microbiological Examination of Foods” y en el “Manual de Métodos de Análise Microbiológica de Alimentos e Água”. En ninguna de las muestras se verificó presencia/proliferación de los microorganismos analizados, significando una preservación de la calidad del hidrolizado durante su preparación, conservación apropiada para el consumo y garantía de la inocuidad por hasta una semana de refrigeración.Título-EN: Microbiological quality of home-made fish hydrolysateLos hidrolizados de pescado pueden servir de suplemento en dietas para personas con deficiencias en la digestión y/o absorción de proteínas, y también, en el tratamiento de niños desnutridos. El objetivo de ésta investigación fue determinar la calidad microbiológica de un hidrolizado de pescado obtenido en condiciones semejantes a la doméstica, sometido a diferentes tiempos de conservación. En muestras del hidrolizado fresco de tilapia (Oreochromis niloticus), sometidas a conservación en temperatura de refrigeración de 4°C por 72 horas por 1 semana, se analizaron coliformes termotolerantes, Escherichia. coli, bacterias mesófilas, Salmonella, Staphylococcus aureus, mohos y levaduras, según los métodos descritos en el “Compendium of Methods for the Microbiological Examination of Foods” y en el “Manual de Métodos de Análise Microbiológica de Alimentos e Água”. En ninguna de las muestras se verificó presencia/proliferación de los microorganismos analizados, significando una preservación de la calidad del hidrolizado durante su preparación, conservación apropiada para el consumo y garantía de la inocuidad por hasta una semana de refrigeración

Reflexões sobre a terminalidade da vida na formação e no cotidiano do profissional medico / Reflections on terminality of live in the training and in the daily life of the medical professional

A morte e o morrer são temas pertinentes ao cotidiano de profissionais de saúde e ao processo de aprendizagem de acadêmicos de medicina. Nesse sentido, diante das poucas oportunidades de se questionar os sentimentos e a compreensão destes profissionais com relação ao morrer dos pacientes durante a graduação e durante o cotidiano profissional, o objetivo deste trabalho foi o de conhecer as percepções de médicos, incluindo docentes em curso de medicina, sobre situações que envolvam a terminalidade da vida. O presente estudo resulta de uma pesquisa qualitativa e descritiva do tipo corte transversal, com diretriz metodológica do discurso do sujeito coletivo, realizado por meio da aplicação de questionários em profissionais médicos atuantes nos Hospital das Clínicas Samuel Libânio da cidade de Pouso Alegre, Minas Gerais.

Unripe Musa sapientum peel in the healing of surgical wounds in rats

PURPOSE: To assess the effects of unripe Musa sapientum peel on the healing of surgical wounds in rats. METHODS: One hundred and twenty Wistar rats were divided into two treatment groups of 60 animals each: the control group (gel without the active ingredient) and experimental group (4% Musa sapientum peel gel). A 4 x 4 cm surgical wound was created on the back of each animal. The wound was cleaned daily with 0.9% saline, treated with 4% gel or natrosol gel (control), and covered with gauze. Animals from both groups were sacrificed after seven, 14 and 21 days of treatment; the tissue from the wound site was removed together with a margin of normal skin for histological analysis. RESULTS: No significant differences in wound contraction rates (p=0.982) were found between time points (seven, 14 and 21 days of treatment) in both groups. However, a significantly higher wound contraction rate was observed in the control group on day 21 compared with the experimental group (p=0.029). There were no significant differences in histomorphological features between groups. The experimental group showed an increased number of polymorphonuclear cells on day 7, with a significant reduction on day 21 (p=0.026). CONCLUSION: The use of 4% unripe Musa sapientum peel gel on surgical wounds in rats resulted in an increased number of polymorphonuclear cells on day 7, reduced wound contraction, reduced vascular proliferation and increased concentration of collagen fibers on day 21.Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)UNIFESP Postgraduate Program in Plastic SurgeryUniversidade Federal de São Paulo (UNIFESP) Department of Surgery Division of Plastic SurgeryUNIVAS School of MedicineUNIVAS Department of BiologyUNIFESP, Postgraduate Program in Plastic SurgeryUNIFESP, Department of Surgery Division of Plastic SurgerySciEL