An empirical biometric-based study for user identification from different roles in the online game League of Legends

© 2017 CEUR-WS. All rights reserved. The popularity of computer games has grown exponentially in the last few years. In some games, players can choose to play with different characters from a pre-defined list, exercising distinct roles in each match. Although such games were created to promote competition and promote self-improvement, there are several recurrent issues. One that has received the least amount of attention is the problem of "account sharing" so far is when a player pays more experienced players to progressing in the game. The companies running those games tend to punish this behaviour, but this specific case is hard to identify. The aim of this study is to use a database of mouse and keystroke dynamics biometric data of League of Legends players as a case study to understand the specific characteristics a player will keep (or not) when playing different roles and distinct characters

The Underestimation Of Egocentric Distance: Evidence From Frontal Matching Tasks

There is controversy over the existence, nature, and cause of error in egocentric distance judgments. One proposal is that the systematic biases often found in explicit judgments of egocentric distance along the ground may be related to recently observed biases in the perceived declination of gaze (Durgin & Li, Attention, Perception, & Psychophysics, in press), To measure perceived egocentric distance nonverbally, observers in a field were asked to position themselves so that their distance from one of two experimenters was equal to the frontal distance between the experimenters. Observers placed themselves too far away, consistent with egocentric distance underestimation. A similar experiment was conducted with vertical frontal extents. Both experiments were replicated in panoramic virtual reality. Perceived egocentric distance was quantitatively consistent with angular bias in perceived gaze declination (1.5 gain). Finally, an exocentric distance-matching task was contrasted with a variant of the egocentric matching task. The egocentric matching data approximate a constant compression of perceived egocentric distance with a power function exponent of nearly 1; exocentric matches had an exponent of about 0.67. The divergent pattern between egocentric and exocentric matches suggests that they depend on different visual cues

Trend analysis of the quality indicators for the Brazilian cervical cancer screening programme by region and state from 2006 to 2013

Quality indicators for the Brazilian cervical cancer screening programme can provide a perspective on its effectiveness in Brazilian macro-regions and states. The aim of this study was to perform a trend analysis of the cervical cancer screening program's quality indicators, according to Brazilian regions and states, from 2006 to 2013.(undefined)info:eu-repo/semantics/publishedVersio

Estresse e Burnout entre residentes multiprofissionais

OBJECTIVE: To identify associations between high-stress and burnout syndrome in multidisciplinary residents from a federal university in Rio Grande do Sul, Brazil. METHOD: This is an analytical, cross-sectional and quantitative study. A socio-demographic questionnaire, the Work Stress Scale and the Maslach Burnout Inventory-Health Services Survey (MBI-HSS) were applied to 37 residents between April and June 2011. P-valuesOBJETIVO: Identificar la asociación entre alto estrés y Burnout en residentes Multiprofesionales de una universidad federal de Rio Grande do Sul. MÉTODO: se trata de un estudio analítico, transversal, cuantitativo. Se aplicaron un formulario de datos socio-demográficos, la Escala de Estrés en el Trabajo y el Maslach Burnout Inventory- Health Services en 37 residentes entre Abril y Junio de 2011. Valores de pOBJETIVO: identificar a associação entre alto estresse e Burnout em residentes multiprofissionais de uma universidade federal do Rio Grande do Sul. MÉTODO: trata-se de estudo analítico, transversal, quantitativo. Aplicaram-se um formulário de dados socio demográficos, a Escala de Estresse no Trabalho e o Maslach Burnout Inventory-Human Services Survey (MBI-HSS) em 37 residentes entre abril e junho de 2011. Valores de

Risk factors for complications after appendectomy in adults

OBJETIVO: Definir os fatores de risco para as complicações após as apendicectomias em adultos. INTRODUÇÃO: os fatores de risco que levam as complicações após as apendicectomias são ainda pouco conhecidos. Sua definição pré-operatória é importante na diminuição da morbi-mortalidade pós-operatória. MÉTODOS: Estudo retrospectivo de 500 pacientes submetidos à apendicectomia no Hospital Regional da Asa Norte entre os anos de 2003 e 2004. Estes foram avaliados quanto à idade, sexo, duração dos sintomas até a procura por assistência médica, presença de febre, características da dor abdominal, hemograma, tempo de admissão até a operação, co-morbidades, incisões utilizadas nas operações, achados operatórios, utilização de drenos, complicações pós-operatórias e dias de internação hospitalar. Foram utilizadas análises de regressões logísticas para predizer e quantificar os fatores de risco para as complicações após as operações. RESULTADOS: As chances de complicações foram maiores no gênero feminino (OR=1,97, 95%, IC-1,19-3,13), na apendicite perfurada (OR=4,67, 95%, IC-2,43-8,94), na apendicite sem perfuração (OR=3,32, 95%, IC-1,72-6,38), naqueles pacientes submetidos à drenagem abdominal (OR=17,54, 95%,IC-4,83-63,77) ou com ASA II (OR=1,53, 95%, IC 2,52-15,89). As infecções do sítio cirúrgico e os abscessos intra-abdominais foram os principais fatores de morbidade. A mortalidade foi nula. CONCLUSÕES: A análise de regressão logística multivariável demonstrou que o gênero, a necrose apendicular, a drenagem da cavidade abdominal e a classificação de ASA contribuíram para o aumento das complicações pós-operatórias dos pacientes submetidos às apendicectomias.BACKGROUND: Risk factors for adverse outcomes after the surgical treatment of appendicitis in adults are poorly defined. Accurate presurgical assessment of the risk of preoperative complications and mortality is important in planning surgical therapy. METHODS: All patients undergoing surgical intervention for appendicitis from January 2003 and January 2004 were selected for study. Independent variables examined included 11 putative preoperative risk factors and 4 intraoperative process measures. Dependents variables were complications. Stepwise logistic regression analysis was used for construct models predicting complications. RESULTS: There was a high risk in female (OR=1,97, 95%, IC-1,19-3,13), in appendix with perforation (OR=4,67 95%, IC-2,43-8,94), appendix without perforation (OR=3,32, 95%, IC-1,72-6,38), drainage (OR=17,54, 95%,IC-4,83-63,77) and ASA II (OR=1,53, 95%, IC 2,52-15,89). CONCLUSION: Four factors, in the logistic regression analysis, predicted a high risk of complications after the surgical treatment of appendicitis: female, necrosis with or without ruptured appendix, drainage and ASA Class II