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Intentional ingestions of foreign objects among prisoners: A review 被引量:10
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作者 David C Evans Thomas R Wojda +2 位作者 Christian D Jones Andrew J Otey Stanislaw P Stawicki 《World Journal of Gastrointestinal Endoscopy》 CAS 2015年第3期162-168,共7页
The intentional ingestion of foreign objects(IIFO) is described more commonly in prison populations than in the general population, with an estimated annual incidence of 1 in 1900 inmates in our state correctional fac... The intentional ingestion of foreign objects(IIFO) is described more commonly in prison populations than in the general population, with an estimated annual incidence of 1 in 1900 inmates in our state correctional facilities. Incidents often involve ingestion of small metal objects(e.g., paperclips, razor blades) or other commonly available items like pens or eating utensils. Despite ingestion of relatively sharp objects, most episodes can be clinically managed with either observation or endoscopy. Surgery should be reserved for those with signs or symptoms of gastrointestinal perforation or obstruction. For those with a history of IIFO, efforts should focus on prevention of recurrenceas subsequent episodes are associated with higher morbidity, significant healthcare and security costs. The pattern of IIFO is often repetitive, with escalation both in frequency of ingestions and in number of items ingested. Little is known about successful prevention strategies, but efforts to monitor patients and provide psychiatric care are potential best-practice strategies. This article aims to provide state-of-the art review on the topic, followed by a set of basic recommendations. 展开更多
关键词 Ingestion FOREIGN body ENDOSCOPY prisonER Swallower Prevention RECURRENCE
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Prevalence of hepatitis C virus infection and its related risk factors in drug abuser prisoners in Hamedan-Iran 被引量:5
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作者 Amir Houshang Mohammad Alizadeh Seyed Moayed Alavian +1 位作者 Khalil Jafari Nastaran Yazdi 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第26期4085-4089,共5页
AIM:Recent studies in Iran has shown that prevalence of hepatitis C virus (HCV) infection among Iranian prisoners is high, in spite of low HCV seroprevalence in general population. METHODS: This study was carried out ... AIM:Recent studies in Iran has shown that prevalence of hepatitis C virus (HCV) infection among Iranian prisoners is high, in spite of low HCV seroprevalence in general population. METHODS: This study was carried out in the central prison of Hamedan - Iran, in year 2002. Inmates were interviewed using a standard questionnaire including demographic, imprisonment history and HCV-related risk behaviors items. Thereafter, the sera drawn from the participants were tested for anti-HIV and anti-HCV antibodies. RESULTS: A total number of 427 drug abuser inmates participated in our study. Three hundred and ninety-seven (93%) were men and 30 (7%) were women. Total number of IV drug abusers (IDA) and non-IV drug abusers (NIDA) was 149 (34.9%) and 278 (65.1%), respectively. The overall rate of antibody positivity among inmates was 0.9% for HIV and 30% for HCV. Of all IDAs, 31.5% and of NIDAs, 29.1% had serological evidence of HCV infection. CONCLUSION: The seroprevalence of HCV infection among drug abuser prisoners in comparison with the general population in Iran, is very high (30% vs in italics 0.2%). Our results indicate the importance of policies to prevent transmission of HCV infection during and following incarceration. 展开更多
关键词 Hepatitis C virus prisoners Drug abusers Iran
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Hepatitis C virus infection and prisoners: Epidemiology, outcome and treatment 被引量:3
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作者 Rosa Zampino Nicola Coppola +2 位作者 Caterina Sagnelli Giovanni Di Caprio Evangelista Sagnelli 《World Journal of Hepatology》 CAS 2015年第21期2323-2330,共8页
The studies on hepatitis C virus(HCV) infection in prison populations are few and mostly cross-sectional. We analyzed prevalently the articles appearing on Pub Med in the last ten years. HCV infection is frequent in p... The studies on hepatitis C virus(HCV) infection in prison populations are few and mostly cross-sectional. We analyzed prevalently the articles appearing on Pub Med in the last ten years. HCV infection is frequent in prisoners, prevalences ranging from 3.1% to 38% according to the HCV endemicity in the geographical location of the prison and in the countries of origin of the foreign prisoners and to the prevalence of intravenous drug use, which is the most important risk factor for HCV infection, followed by an older age of prisoners and previous prison terms. HCV replication in anti-HCVpositive cases varies from 45% to 90% in different studies, and the most common HCV genotypes are generally 1 and 3. The response to antiviral treatment is similar in prisoners to that of the general population. Unfortunately, treatment is administered less frequently to prisoners because of the difficulties in management and follow-up. The new directly acting antivirals offer a good therapy option for inmates because of their good efficacy, short duration of treatment and low incidence of side effects. The efforts of the prison authorities and medical staff should be focused on reducing the spread of HCV infection in prisons by extending the possibility of follow-up and treatment to more prisoners with chronic hepatitis C. 展开更多
关键词 prisoners Management Treatment CARE CHRONIC hepati
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Prevalence,genotypes and factors associated with HCV infection among prisoners in Northeastern Brazil 被引量:1
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作者 Bruno Fernandes de Oliveira Santos Nathalie Oliveira de Santana Alex Vianey Callado Franca 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第25期3027-3034,共8页
AIM: To determine hepatitis C virus (HCV) seropreva- lence and its genotypes, and to identify the factors associated with HCV infection. METHODS: This cross-sectional study, conducted in two prisons (one male and... AIM: To determine hepatitis C virus (HCV) seropreva- lence and its genotypes, and to identify the factors associated with HCV infection. METHODS: This cross-sectional study, conducted in two prisons (one male and one female) in the State of Ser- gipe, Brazil, comprised 422 subjects. All of the prisoners underwent a rapid test for the detection of HCV antibod- ies. Patient~ with a positive result were tested for anti- HCV by enzyme linked immunosorbent assay and for HCV RNA by qualitative polymerase chain reaction (PCR). The virus genotype was defined in every serum sample that presented positive for PCR-HCV. In order to determine the factors independently associated with positive serol- ogy for HCV, multivariate logistic regression was used. RESULTS: HCV seroprevalence was 3.1%. Of the 13 subjects with positive anti-HCV, 11 had viremia confirmed by PCR. Of these, 90.9% had genotype 1. A total of 43 (10.2%) were injecting drug users, and HCV seroprevalence in this subgroup was 20.6%. The variable most strongly associated with positive serology for HCV was use of injecting drugs [odds ratio (OR), 23.3; 95% confidence interval (CI), 6.0-90.8]. Age over 30 years (OR, 5.5; 95%CI, 1.1-29.2), history of syphilis (OR, 9.8; 95%CI, 1.7-55.2) and history of household contact with HCV positive individual (OR, 14.1; 95%CI, 2.3-85.4) were also independently associated with HCV infection. CONCLUSION: Most of the HCV transmissions result from parenteral exposure. However, there is evidence to suggest a role for sex and household contact with an infected subject in virus transmission. 展开更多
关键词 Hepatitis C prisoners Drug abusers Crosssectional analysis Brazil
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Prevalence of smear positive pulmonary tuberculosis in Gondar prisoners,North West Ethiopia
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作者 Zelalem Addis Emebet Adem +4 位作者 Abebe Alemu Wubet Birhan Biniam Mathewos Belaynesh Tachebele Yegnasew Takele 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2015年第2期127-131,共5页
Objective:To assess the prevalence and risk factors of smear positive pulmonary tuberculosis among Condar town prisoners.North West Ethiopia.Methods:A cross sectional study was conducted from February to July,2008 in ... Objective:To assess the prevalence and risk factors of smear positive pulmonary tuberculosis among Condar town prisoners.North West Ethiopia.Methods:A cross sectional study was conducted from February to July,2008 in Condar Prison.Prisoners with cough duration of more than two weeks were involved in the study by giving three sputum samples and filling the questionnaires prepared for risk factor assessment.Acid fast staining technique was employed to delect the presence of the Mycobacterium tuberculosis bacilli in the sputum samples.Data was analyzed using SPSS version13 computer software and presented in table.Chi-square test was used to assess associations and a P-value less than 0.05 was taken as significant.Results:A total of 384 prisoners,349 male and 35 females,with a mean age of 33.3 years were involved in the study.The prevalence of smear positive pulmonary tuberculosis among those prisoners with cough duration of more than two wecks was 8.59%.Only the length of imprisonment had a significant association(χ~2= 18.82,P-value【0.0001) with the prevalence of tuberculosis.Conclusions:This study indicated that tuberculosis among prisoners with cough duration of more then two weeks in Gondar prison is very high.Therefore Periodic screening of the prisoners and screening of newly introduced prisoners should be practiced so as to minimise the burden of tuberculosis in prisoners. 展开更多
关键词 TUBERCULOSIS SMEAR POSITIVE PULMONARY TUBERCULOSIS prisoners Gondar Ethiopia
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Traumatic Brain Injury in Prisoners: Relation to Risky Decision-Making, Aggression and Criminal Behavior
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作者 Niki C. Kuin Erik J. A. Scherder +1 位作者 Hanneke Gijsbers Erik D. M. Masthoff 《Journal of Behavioral and Brain Science》 2019年第7期289-299,共11页
The objective of this cross-sectional study was to investigate if Traumatic Brain Injury (TBI) is related to decision-making deficits as well as to heightened levels of (reactive) aggression and criminal behavior in a... The objective of this cross-sectional study was to investigate if Traumatic Brain Injury (TBI) is related to decision-making deficits as well as to heightened levels of (reactive) aggression and criminal behavior in a group of Dutch male prisoners. Characteristics of aggression were assessed using three self-report questionnaires as well as systematic staff observations, complemented with data from criminal records. A semi-structured interview was conducted to rate lifetime prevalence of TBI and the Iowa Gambling Task (IGT) was completed to assess risky decision-making. Out of the total of 133 participants, 74 (55.6%) reported having sustained one or more incidents with potential TBI. Statistical comparisons between offenders with and without TBI indicated that the offenders with TBI reported significantly higher levels of (reactive) aggression on two out of three questionnaires than offenders without TBI (p-values ranging from 0.003 to 0.008), but no significant differences were found on staff observations of aggression and on the IGT. The higher conviction rates in offenders with TBI compared to the non-TBI group showed a trend. The confirmed relationship between TBI and higher aggressive tendencies is especially relevant for forensic populations due to the high prevalence rates of TBI in offenders. How this relates to specific cognitive processes remains unclear. The lack of a statistical difference between offenders with and without TBI on the IGT is in contrast with literature in non-offender samples, but seems to be in line with other studies in forensic populations. 展开更多
关键词 AGGRESSION prisoners TRAUMATIC Brain Injury DECISION-MAKING IOWA GAMBLING Task
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Knowledge of Female Prisoners in a City of Ceará, Brazil, about Sexually Transmitted Diseases
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作者 Cinthia Gondim Pereira Calou Camila Fonseca Wasidi +4 位作者 Maria de Fátima Esmeraldo Ramos de Figueiredo Ana Izabel Oliveira Nicolau Ana Karina Bezerra Pinheiro Régia Christina Moura Barbosa Castro Priscila de Souza Aquino 《Open Journal of Nursing》 2014年第9期630-636,共7页
Exploratory study was conducted in the Crato Public Prison, State of Ceará, Brazil, aiming to understand the knowledge and experiences related to the preventive aspects of Sexually Transmitted Diseases (STDs) in ... Exploratory study was conducted in the Crato Public Prison, State of Ceará, Brazil, aiming to understand the knowledge and experiences related to the preventive aspects of Sexually Transmitted Diseases (STDs) in the prison context. The target population of the study consisted of 14 female inmates, 10 of whom agreed to participate. Data collection occurred in June 2012 through recorded semi-structured individual interviews. We investigated quantitative, socio-demographic and sexual variables. In qualitative data analysis, we applied the Meaning Interpretation Method. The female vulnerability was aggravated by the early onset of sexual activity, lack of knowledge about STDs, non-adoption of preventive measures and history of prostitution. The following categories emerged from the qualitative assessment: Knowledge about STD/AIDS versus Personal Experience;Use of contraception as STD/AIDS prevention within the Public Jail;Habits of inmates: alcohol and tobacco;and Characterization of the conjugal visit area. 展开更多
关键词 prisoners NURSING Women’s HEALTH Sexual and REPRODUCTIVE HEALTH
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The Link between Facets of Impulsivity and Aggression in Extremely Violent Prisoners
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作者 Henning Værøy Elin Western Stein Andersson 《Open Journal of Psychiatry》 2016年第1期86-94,共9页
Evidence is growing that aggressive behavior and impulsivity have subgroups. The subscales of the Urgency, Premeditation, Perseverance and Sensation seeking (UPPS) impulsivity scale and the Bryant and Smith shortened ... Evidence is growing that aggressive behavior and impulsivity have subgroups. The subscales of the Urgency, Premeditation, Perseverance and Sensation seeking (UPPS) impulsivity scale and the Bryant and Smith shortened and refined version of the Aggression Questionnaire were used to describe and compare impulsive and aggressive behavior in extremely violent and aggressive male inmates and non-violent healthy male controls. The Mann-Whitney test showed that there was a significant difference (p < 0. 006) in the total UPPS impulsivity scale scores between the aggressive inmates and the controls. The subscales revealed that this difference was based mainly on the urgency score (p < 0. 003). On the aggression subscales, the inmates scored significantly higher for physical aggression than the controls (p < 0.001), but no significant difference was seen between inmates and controls for verbal aggression, anger and hostility, although the exact p-value was very close to statistical significance at 0.054. Regression analysis revealed a strong relationship between urgency and the aggression subscales hostility (p = 0.0004) and anger (p = 0.003) and that urgency was also linked to symptoms of anxiety (p = 0.008). Finally, a statistically significant link was found between both hostility (p = 0.0003) and anger (p = 0.002) and symptoms of anxiety. The highly selected subgroup of extremely violent criminals in this study were more physically aggressive than non-violent controls, with urgency as the driving feature in their impulsive behavior, and hostility, anger and symptoms of anxiety as underlying traits. 展开更多
关键词 UPPS AGGRESSION IMPULSIVITY INMATES prisoners
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China's First Seminar On Prisoners' Human Rights
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《The Journal of Human Rights》 2003年第6期34-35,共2页
Anational seminar on honoring prisoners’ human rights was held in Nanjing from September 10 to 12 by China Society for Human Rights Studies (CSHRS) and China Penology Society (CPS), which, the first of its kind in Ch... Anational seminar on honoring prisoners’ human rights was held in Nanjing from September 10 to 12 by China Society for Human Rights Studies (CSHRS) and China Penology Society (CPS), which, the first of its kind in China, drew over 60 law and human rights experts and officials from jails and judicial administrations across the country. 展开更多
关键词 that on as Pro from in Human Rights China’s First Seminar On prisoners of with be HAVE
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Protect Sick Prisoners' Rights Through Regulation and Innovation——Chengdu launches coordinating mechanism for sick prisoners with major diseases
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作者 WANG XIAOBING, YAN HUAJU AND FU SHAOHUA 《The Journal of Human Rights》 2012年第5期5-7,共3页
In May 2011, the Prison Management Bureau of Sichuan Province in Southwest China held a conference in its capital city Chengdu to discuss the management of severely sick prisoners. Coordinating Management on Major Dis... In May 2011, the Prison Management Bureau of Sichuan Province in Southwest China held a conference in its capital city Chengdu to discuss the management of severely sick prisoners. Coordinating Management on Major Diseases of Sick Prisoners in Sichuan (Trial) was issued then, marking the start of an overall deployment. 展开更多
关键词 Protect Sick prisoners Rights Through Regulation and Innovation Chengdu launches coordinating mechanism for sick prisoners with major diseases
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Prisoners' Human Rights Protection in China off Press
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作者 BY ZHEN GONG 《The Journal of Human Rights》 2004年第6期35-35,共1页
Of late a book describing prisoners’ human rights protection in China was off the press. Compiled jointly by the ChinaPenology Society and the China Society for Human Rights Studies, the book Prisoners’ Human Right ... Of late a book describing prisoners’ human rights protection in China was off the press. Compiled jointly by the ChinaPenology Society and the China Society for Human Rights Studies, the book Prisoners’ Human Right Protection in China has collected papers presented at the National Seminar on Prisoners’ Human 展开更多
关键词 Human Rights Protection in China off Press prisoners WORK
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Prisoners awarded——Henan Yudong Prison rewards accomplished inmates
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作者 CHEN CHUN’AN 《The Journal of Human Rights》 2010年第4期34-35,共2页
Gao Pingyuan has seen new hopes of a new life after serving his terms for 12 years at the Yudong Prison in central China's Henan Province. He got the special class award for his accomplished teaching in prison.
关键词 Henan Yudong prison rewards accomplished inmates prisoners awarded
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Strengthen Theoretical Study of Prisoners' Human Rights
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作者 JIN JIAN 《The Journal of Human Rights》 2004年第1期4-6,共3页
The following are excerpts of a speech made by Jin Jian, President of the China Penology Society and Vice-President of the China Society for Human Rights Studies at a seminar on prisoners' human rights organized b... The following are excerpts of a speech made by Jin Jian, President of the China Penology Society and Vice-President of the China Society for Human Rights Studies at a seminar on prisoners' human rights organized by the China Penology Society and the China Society for Human Rights Studies. 展开更多
关键词 Strengthen Theoretical Study of prisoners Human Rights
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Life of Old,Sick and Handicapped Prisoners in China
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作者 ZHAO SONG & ZHANG PING 《The Journal of Human Rights》 2006年第6期29-31,共3页
At the foot of the Great Wall northwest of Beijing, there is a special prison, called Yanqing Prison. It is special, because it gathers all theimprisoned old, sick and handicapped offenders in the Beijing area for the... At the foot of the Great Wall northwest of Beijing, there is a special prison, called Yanqing Prison. It is special, because it gathers all theimprisoned old, sick and handicapped offenders in the Beijing area for the purpose of facilitating management. 展开更多
关键词 Life of Old Sick and Handicapped prisoners in China THAN
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Prevalence and features of SARS-CoV-2 infection in prisons in Tuscany
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作者 Cristina Stasi Martina Pacifici +3 位作者 Caterina Milli Francesco Profili Caterina Silvestri Fabio Voller 《World Journal of Experimental Medicine》 2024年第1期70-77,共8页
BACKGROUND Prisons can be a reservoir for infectious diseases,including severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),due to the very intimate nature of the living spaces and the large number of people f... BACKGROUND Prisons can be a reservoir for infectious diseases,including severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),due to the very intimate nature of the living spaces and the large number of people forced to share them.AIM To investigate the SARS-CoV-2 epidemiology in prisons,this study evaluated the infection incidence rate in prisoners who underwent nasopharyngeal swabs.METHODS This is an observational cohort study.Data collection included information on prisoners who underwent nasopharyngeal swab testing for SARS-CoV-2 and the results.Nasopharyngeal swab tests for SARS-CoV-2 were performed between 15 February 2021 and 31 May 2021 for prisoners with symptoms and all new arrivals to the facility.Another section included information on the diagnosis of the disease according to the International Classification of Diseases,Ninth Revision,and Clinical Modification.RESULTS Up until the 31 May 2021,79.2%of the prisoner cohort(n=1744)agreed to a nasopharyngeal swab test(n=1381).Of these,1288 were negative(93.3%)and 85 were positive(6.2%).A significant association[relative risk(RR)]was found only for the risk of SARS-CoV-2 infection among foreigners compared to Italians[RR=2.4,95%confidence interval(CI):1.2-4.8].A positive association with SARS-CoV-2 infection was also found for inmates with at least one nervous system disorder(RR=4,95%CI:1.8-9.1).The SARS-CoV-2 incidence rate among prisoners is significantly lower than in the general population in Tuscany(standardized incidence ratio 0.7,95%CI:0.6-0.9).CONCLUSION In the prisoner cohort,screening and rapid access to health care for the immigrant population were critical to limiting virus transmission and subsequent morbidity and mortality in this vulnerable population. 展开更多
关键词 SARS-CoV-2 Epidemiology prison PREVALENCE FOREIGNERS Swab tests
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Prevalence of Hepatitis B and Associated Factors in the Garoua Central Prison, Cameroon: A Cross-Sectional Study
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作者 Mohamadou Abdou Galdima Adamou Dodo Balkissou +9 位作者 Guy Roger Nsenga Djapa Winnie Tatiana Bekolo Nga Gilles Aghoagni Antonin Wilson Ndjitoyap Ndam Ali Abas Mathurin Pierre Kowo Firmin Ankouane Andoulo Dominique Noah Noah Oudou Njoya Servais Albert Fiacre Eloumou Bagnaka 《Open Journal of Gastroenterology》 CAS 2024年第5期174-183,共10页
Introduction: Hepatitis B virus (HBV) infection is a major public health problem in Cameroon. Garoua city is the headquarters of the North Region of Cameroon, where the HBV prevalence is among the highest of the count... Introduction: Hepatitis B virus (HBV) infection is a major public health problem in Cameroon. Garoua city is the headquarters of the North Region of Cameroon, where the HBV prevalence is among the highest of the country. The aim of this study was to determine the prevalence of HBsAg carriage and associated factors among persons incarcerated in the Garoua Central Prison. Methods: It was a cross-sectional study conducted from July 1 to July 31, 2023 at the Garoua Central prison. We included all prisoners willing to participate in the study and who gave their verbal consent. We collected data using a pre-established data entry form and we used rapid test for blood screening for HBV surface antigen (HBs Ag) with ELISA confirmation. Data were analyzed using the R<sup>®</sup> software for Windows. After the univariate analysis, we selected associated variables to HBV infection with p-value p-value was set at 5%. Results: We included 1389 prisoners out of which 97.6% were male. The median age (IQR) of the study population was 28 (23 - 35) years. The median (IQR) duration of incarceration was 12 (6 - 26) months and the mean (±sd) number of incarcerations was 1.24 (±0.6). HBV prevalence was estimated at 14.8% (95% CI: 13.0 - 16.7). Upon uni- and multivariate analysis, no risk factor was significantly associated with viral hepatitis B infection in our study population. Conclusion: The prevalence of Hepatitis B was high in the Garoua Central Prison, but there were no additional risk factors for HBV infection. There is a need to include the Garoua Central Prison and by the way other prisons in the country in the chronic viral hepatitis care program. 展开更多
关键词 Hepatitis B prison Associated factors Cameroon
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Benefit community promotes evolution of cooperation in prisoners’ dilemma game
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作者 Jianwei Wang Jialu He +3 位作者 Fengyuan Yu Wei Chen Rong Wang Ke Yu 《Chinese Physics B》 SCIE EI CAS CSCD 2019年第10期603-608,共6页
Exploring the emergence and maintenance of cooperation in social dilemma is valuable and it arises considerable concerns of many researchers. In this paper, we propose a mechanism to promote cooperation, called benefi... Exploring the emergence and maintenance of cooperation in social dilemma is valuable and it arises considerable concerns of many researchers. In this paper, we propose a mechanism to promote cooperation, called benefit community,in which cooperators linking together form a common benefit community and all their payoffs obtained from game are divided coequally. The robustness of conclusions is tested for the PDG(prisoners' dilemma game) on square lattice and WS small world network. We find that cooperation can be promoted by this typical mechanism, especially, it can diffuse and prevail more easily and rapidly on the WS small world network than it on the square lattice, even if a big temptation to defect b. Our research provides a feasible direction to resolve the social dilemma. 展开更多
关键词 coevolution cooperation prisoners' DILEMMA GAME BENEFIT COMMUNITY
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Prisoners' Dilemma Supergame on Rectangle Lattice
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作者 Zhongxing Ye Jingshu Chen 《Open Journal of Applied Sciences》 2013年第1期7-11,共5页
In this paper a class of large supergames, i.e., infinitely repeated games played by many players are studied. The players located on the vertex set of planar rectangle lattice play several basic games with his neighb... In this paper a class of large supergames, i.e., infinitely repeated games played by many players are studied. The players located on the vertex set of planar rectangle lattice play several basic games with his neighbors. The basic game is two-person prisoners’ dilemma game with asymmetric payoffs. Under the conditions of the pre-specified updating rules and the transition probabilities, the relevant stochastic process of strategy evolution forms a Markovian process. The simulation results about the long-run behavior are provided. 展开更多
关键词 prisoners' DILEMMA Supergame Planar RECTANGLE LATTICE MARKOV Process INVARIANT Measure Equilibrium
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Effects of Topological Randomness on Cooperation in a Deterministic Prisoner's Dilemma Game
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作者 章梅 杨俊忠 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第7期31-36,共6页
In this work, we consider an evolutionary prisoner's dilemma game on a homogeneous random network with the richest-following strategy adoption rule. By constructing homogeneous random networks from a regular ring gra... In this work, we consider an evolutionary prisoner's dilemma game on a homogeneous random network with the richest-following strategy adoption rule. By constructing homogeneous random networks from a regular ring graph, we investigate the effects of topologicaJ randomness on cooperation. In contrast to the ordinary view that the presence of smaJ1 amount of shortcuts in ring graphs favors cooperation, we find the cooperation inhibition by weak topological randomness. The explanations on the observations are presented. 展开更多
关键词 deterministic prisoners' dilemma game topological randomness COOPERATION
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Defection or Cooperation—Richard Power’s Moral Insights in Prisoner’s Dilemma
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作者 梁渊 宋祝 +1 位作者 陈益 周永胜 《海外英语》 2021年第4期239-241,共3页
Prisoner’s Dilemma is a master trope for relaying the permanent impasse or dilemma of cooperation versus defection.In Prisoner’s Dilemma Richard Powers narrates a multiform of dilemma mainly narrating Eddie Hobson’... Prisoner’s Dilemma is a master trope for relaying the permanent impasse or dilemma of cooperation versus defection.In Prisoner’s Dilemma Richard Powers narrates a multiform of dilemma mainly narrating Eddie Hobson’s traumatic history,along with Eddie’s attempt to carry out a strategy—Eddie’s ideal Hobstown which is supposed to cope with the confused dilemma.Pow⁃ers’strategic moral insights are revealed by assuming that each player feels sympathy for the other and a moral cooperative instead of antagonistic solution to the Prisoner’s Dilemma will be found. 展开更多
关键词 DEFECTION COOPERATION MoralInsights prisoner’s Dilemma
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