Marijuana use and repeated attempted suicide among senior high school students in Ghana:Evidence from the WHO Global School-Based Student Health Survey,2012

Background The association between substance use including marijuana use and attempted suicide has been well documented.However,little is known about marijuana use and its association with attempted suicide repetition among young people in low-income and middle-income contexts.Aims This analysis was conducted to assess the factors associated with marijuana use and ascertain marijuana use as a determinant of repeated attempted suicide among senior high school(SHS)students in Ghana.Methods Data from the 2012 Global School-Based Student Health Survey in Ghana was used for this study.Modified Poisson,Logistic and Probit models weighted with Mahalanobis distance matching within propensity calliper were employed separately to determine the hypothetical association between marijuana use and repeated attempted suicide.All analysis was performed using Stata 16 and p<0.05 was deemed statistically significant.Results The prevalence estimates of marijuana use and repeated attempted suicide among SHS students in Ghana were 3.4%(95%Cl:2.3 to 5.1)and 11.5%(95%Cl:9.1 to 14.4),respectively.The prevalence of marijuana use was significantly associated with school grade,smoking exposure,parent smoker,alcohol intake and truancy.Marijuana use was positively associated with repeated attempted suicide among SHS in Ghana correlation=0.23,p<0.001.Repeated attempted suicide among students who use marijuana was approximately threefold and fivefold significant compared with nonmarijuana use students,based on the Poisson(adjusted prevalence ratio:3.02;95%Cl:1.67 to 5.43,p<0.001)and Logistic(adjusted OR:5.06;95%Cl:3.19 to 11.64,p<0.001)estimates respectively.Also,the Probit model showed that marijuana use significantly increased the log count of repeated attempted suicide by 95%(ap:0.95;95%CI:0.49 to 1.41,p<0.001).Conclusion Marijuana use does not only influence the onset of suicidal attempts but also repeated attempted suicide among SHS students in Ghana.Special attention is required for suicide attempters with a history of repeated attempts and current marijuana use among SHS students in Ghana.Early identification of the potential risk and protective factors is recommended to inform school-based interventions.National level structured school-based substance abuse interventions and health promotion programmes would be useful.

Self-Genital Mutilation and Attempted Suicide by Cut Throat in the Same Patient at Presentation: A Rare Event

Genital self-mutilation is an uncommon event that is commonly associated with psychotic disorders. Such injuries have also been reported secondary to complex religious beliefs and delusions regarding sexual guilt. Even though few case reports of male genital self-mutilation are available in literature, it is?rareto have a combined self-genital mutilation and attempted suicide by cut throat occurring in the same patient at presentation. We presented the case of a 38-yr-old male who presented to the accident and emergency centre of a tertiary hospital in Accra, Ghana.

Social Meanings of Attempted Suicide of Men in Bangladesh

Émile Durkheim’s Le Suicide(1897/2005)paved the way for the development of the sociology of suicide.However,Durkheim’s positivistic approach in studying suicide was trenchantly challenged by,amongst others,Jack Douglas,who,in Social Meanings of Suicide(1968),advocated extricating the social meanings of suicide from the interpretive tradition of social research.Drawing on Douglas’approach to the sociology of suicide,this paper reports and reflects on part of a study conducted across several rural areas of Jhenaidah,an area in Bangladesh highly affected by suicide,with 17 males who have attempted suicide.The responses of the participants were interpreted with a view to understanding the social meanings associated with their suicide attempts.Although there was a diversity of individual experiences among the participants with regard to suicide attempts,the paper synthesises these and reflects on three themes which most closely represent the commonalities of experience of the 17 men,namely:(i)inability to provide;(ii)intimate relationship stress;and(iii)loss of social status.In conclusion,the paper contributes to understanding suicide attempts by men as social meaningfully events,delineating the roles and complexities associated with constructions of masculine identities.

Large-brained birds lay smaller but heavier clutches

The brain is among the most energetically costly organs in vertebrates,and thus trade-offs have been hypothesized to exert constraints on brain size evolution.The energy trade-off hypothesis(ETH) predicts that reducing the energy consumption of reproduction or other costly tissues should compensate for the cost of a large brain.Egg production in birds requires a large proportion of the total energy budget,and a clutch mass in some bird species can outweigh the body mass of the female.To date,this hypothesis has mainly been tested in mammals and ectothermic animals such as anurans and fishes.We collated data on adult brain size,body mass and eggproduction traits such as clutch size,egg mass and annual broods from published studies,and conducted a phylogenetic comparative test of the interplay between egg-production investment and brain size evolution across bird species.After controlling for phylogenetic relationships and body size,we find a negative correlation between brain size and clutch size across 1395 species,which favored ETH.However,when egg mass was integrated in models,positive associations were detected between brain size and mass of eggs(via egg mass,clutch mass and annual total egg mass).Our results suggest that brain size trades off against egg-production only via certain aspects(e.g.,clutch size).By contrast,a positive relationship between brain size and total egg reproduction(e.g.,clutch mass and annual total egg mass) implied increased total energy budget outweighing energy allocation across bird species.Our study shows that there is no general energy trade-off between brain size and eggreproduction investment,and suggests that brain size evolution follows mixed strategies across bird species.

Suicide Attempts in a General Hospital: A Case-Control

Objective: This study aims is to conduct a comparative analysis of the clinical and sociodemographic profiles of individuals referred to Consultation-Liaison Psychiatry (CLP) at a tertiary general hospital, specifically focusing on those seeking assistance due to suicide attempts (TS) versus CLP requests for other reasons (non-TS) between the years 2010 and 2020. Additionally, we aim to assess factors associated with suicide attempts. Method: This retrospective controlled study involves a thorough examination of medical records encompassing 3913 patients who received CLP services at the Hospital de Base (HB) and the Children and Maternity Hospital (HCM) of São José do Rio Preto Medical School Foundation (Funfarme) from June 2010 to June 2020. The patient cohort is categorized into two groups: those with requests for SA (n = 677) and those with requests for other reasons. Results: In the SA group, as opposed to the non SA group, statistically significant differences were observed for gender (predominantly female), employment status (employed), marital status (single), and age (younger). Notably, a higher prevalence of psychiatric antecedents (88.7%, n = 555 vs. 73.6% n = 2018) was found in the SA group, indicating a significant association. The frequency of SA requests remained stable over the years. Among the SA group, mood disorders were the most prevalent (39%, n = 372), followed by disorders related to substance use (21.2%, n = 202), and personality disorders (16%, n = 152). A history of previous suicide attempts emerged as a crucial factor for the recurrence of SA (p-value ≤ 0.001). Exogenous intoxication emerged as the most frequently employed method in attempts (79.6%, n = 539), particularly prevalent among patients diagnosed with mood disorders (41%, n = 314). A significant association was observed between the method of attempt and the nosological psychiatric diagnosis (χ2 = 42.277;p ≤ 0.001). Regarding outcomes, the majority of patients were referred for outpatient follow-up (23%, n = 336) in specialized mental health services or at the Primary Healthcare Unit, highlighting the general hospital’s pivotal role in integrating patients into the broader healthcare network. Conclusion: Variables such as gender (female), age group (young adults), and psychiatric history exhibited stronger associations with suicide attempts compared to the group assisted by CLP for other reasons. Furthermore, a noteworthy correlation between the method employed and the psychiatric diagnosis was identified.

Herpesvirus gene vectors and applications to human gene therapy

Herpes simplex virus type 1 (HSV-1) naturallyestablishes latency in neurons of the nervous systemwith the concommitant expression of the latencyassociated transcripts (LATS) and the loss in

Antecedents and sex/gender differences in youth suicidal behavior

Suicide is the second leading cause of death in youth globally; however, there is uncertainty about how best to intervene. Suicide rates are typically higher in males than females, while the converse is true for suicide attempts. We review this "gender paradox" in youth, and in particular, the age-dependency of these sex/gender differences and the developmental mechanisms that may explain them. Epidemiologic, genetic,neurodevelopmental and psychopathological research have identified suicidal behaviour risks arising from genetic vulnerabilities and sex/gender differences in early adverse environments, neurodevelopment, mental disorder and their complex interconnections. Further, evolving sex-/gender-defined social expectations and norms have been thought to influence suicide risk. In particular, how youth perceive and cope with threats and losses(including conforming to others' or one's own expectations of sex/gender identity) and adapt to pain(through substance use and helpseeking behaviours). Taken together, considering brain plasticity over the lifespan, these proposed antecedents to youth suicide highlight the importance of interventions that alter early environment(s)(e.g., childhood maltreatment) and/or one's ability to adapt to them. Further, such interventions may have more enduring protective effects, for the individual and for future generations, if implemented in youth.

Endovascular repair of giant traumatic pseudoaneurysm of the common carotid artery

BACKGROUND: Delayed presentation of carotid artery pseudoaneurysm following many years after self-inflicted penetrating injury of the neck is extremely rare. Open surgical carotid repair may involve sternotomy for proximal vascular control. Endovascular treatment is evolving as a lessinvasive treatment option.METHODS: We report a 55-year-old man with a history of paranoid schizophrenia who presented with a progressively enlarging left sided neck mass many years after attempted suicide. CT scan confirmed a 6 cm pseudoaneurysm arising from the common carotid artery.RESULTS: Through an open retrograde puncture of the distal common carotid artery, the common carotid pseudoaneurysm was successfully repaired with a BARD fluency carotid stentgraft of 8 mm×80 mm(BARD, Tempe, AZ). The patient recovered well with no neurological deficits and was discharged on postoperative day 4. Dual antiplatelet agents of aspirin and clopidogrel were given for six months and then clopidogrel was administered lifelong. The neck mass decreased in size gradually and became non pulsatile upon follow-up.CONCLUSION: Endovascular stenting of giant carotid pseudoaneurysm is an acceptable less invasive treatment option for giant carotid pseudoaneurysm. Long-term follow-up and a greater number of cases are mandatory to establish the safety of this strategy.

FURTHER OBSERVATIONS ON THE THERAPEUTIC EFFECT OF MAGNETS AND MAGNETIZED WATER AGAINST ASCARIASIS IN CHILDREN——ANALYSIS OF 114 CASES

Basing on the theory of collaterals,or JingLuo,the author further attempted to applymagneto-therapy in the treatment of ascariasis asa substitute for ascaricides to expel the parasitesby changing the living environment of round-worms in the human body.Following the re-

Defining future: Harbinger studies on AI in Aerospace

Artificial Intelligence(AI)is intelligence demonstrated by machines:Simulating human thinking,and eventually achieving works as the proxy of human.As AI technology proceeding,scientists have attempted to summarize it from different perspectives,and the definition of AI is far from unified.But a common sense from the basic connotation can be elaborated as“intelligent machines that can perceive,think,cognize,and act like humans,and perform tasks that typically require human intelligence”.

Marijuana use and suicidal behaviours among school-going adolescents in Africa:assessments of prevalence and risk factors from the Global School-Based Student Health Survey

Background Marijuana use among adolescents,including high school students,has been consistently reported to be associated with a high incidence of suicidal behaviours.Little empirical research has been conducted on the propensity impact of marijuana use on suicidal behaviours in Africa.Aims To assess factors associated with marijuana use and further quantify marijuana use as an associated factor of suicidal behaviours,including repeated attempted suicide,suicidal ideation and suicide planning,among high school students in Africa.Methods A cross-sectional study was conducted among 32802 school-going adolescents using the Global School-Based Student Health Survey data from 10 African countries grouped into West Africa,North Africa,South-East Africa,South Africa and East Africa subregions.Marijuana use and repeated attempted suicide were the main outcome variables.We employed double selection least absolute shrinkage and selection operator poisson regression model to assess risk factors associated with marijuana use and dominance analysis to establish ranked important and common risk factors.Inverse probability weighting poisson regression adjustment was applied to assess impact.Results The prevalence of marijuana use and repeated attempted suicide were 3.7%(95%CI:3.1 to 4.3)and 6.6%(95%CI:5.9 to 7.4),respectively.The most important risk factor for marijuana use generally across the countries and specifically in three subregions was alcohol consumption,which constituted approximately 40%of the impact.The average treatment effect on the treated(ATT)indicated that marijuana use significantly increased the risk of suicidal ideation,suicide planning and repeated attempted suicide by 12%(ATT=0.12(95%CI:0.02 to 0.22)),18%(ATT=0.18(95%CI:0.13 to 0.22))and 31%(ATT=0.31(95%CI:0.20 to 0.41)),respectively.Conclusions Marijuana use was significantly associated with suicidal behaviours(suicidal ideation,planning and repeated attempted suicide)among the students.To achieve Sustainable Development Goal 3.5(to strengthen prevention and treatment of substance abuse),school-based-based psychosocial interventions should be streamlined to adequately assess and manage marijuana use.Targeting the most dominant risk factors in this population could translate into the reduction of suicidal behaviours in countries within Africa.

How Can Correction Improve Students' Writing

Writing is one of the required abilities in learning a foreign language and it is the most difficult to master as well. Though nearly all the students have learned English for at least six years, when it comes to writing, they are incompetent for it and mistakes appear in their writing time and again. This article means to analyze the reasons of mistakes and attempts to offer some possible means to correct them. Thus students’ writing can be improved.

POPULISM IN POWER?A RECONSIDERATION OF THE ATHENIAN DEMOCRACY OF THE LATE 5TH CENTURY BC

The Athenian demokratia of the late 5th century BC exhibited characteristics which would today qualify as populist.1Indeed,this was already the conclusion of an earlier paper which attempted to identify intersections between modern research on populism and the operation of classical Athenian democracy.

柯达相机DV5700报21-116和吸双片问题

故障现象：机器原来主要是会报116（Film Pickup Failed）,117（Film Pickup Retry Notification,Code 21-116is generated on the third successive failed pickup attempt.）,因是早期设备,怀疑Pickup上的传感器连线断,于是更换了新的Pickup,换后同样会报116,117,并出现双片现象。

《大学英语》(上外版)系列辅导(1)

辽宁师范大学的学生在历年非英语专业的大学英语全国四级统考中及格率在辽宁省乃至全国同类师范大学中居领先地位。我们的体会之一是:构建英语学习的辉煌殿堂必须从地基——词汇开始。下面是按照大学英语教学大纲的要求编写的语言点和练习,每期两个单元,大体上与教学同步,希望能帮助同学们学好英语,顺利通过四级考试。

考研翻译能力训练(81)

丘吉尔的多面人生史学家和许多公众早已知道,温斯顿·丘吉尔在他的政治生涯中经常进行高风险博弈。有些博弈,比如损失惨重的达达尼尔海峡战役（丘吉尔在海军部策划了这次大胆的军事行动,目的是占领加利波利海峡,迫使土耳其退出第一次世界大战）,他出了错。而其他一些决定却极其正确。

Decentralizing Volunteer Computing Coordination

This paper attempted to decentralize volunteer computing (VC) coordination with the goal of reducing the reliance on a central coordination server, which had been criticized for performance bottleneck and single point of failure. On analyzing the roles and functions that the VC components played for the centralized master/worker coordination model, this paper proposed a decentralized VC coordination framework based on distributed hash table (DHT) and peerto-peer (P2P) overlay and then successfully mapped the centralized VC coordination into distributed VC coordination. The proposed framework has been implemented on the performance-proven DHT P2P overlay Chord. The initial verification has demonstrated the effectiveness of the framework when working in distributed environments.

浅谈外贸英语的翻译

随着改革开放的不断深化,对外贸易,特别是与西方国家的贸易,在不断地扩大。这样外贸英语也就日益显得重要和急需。 贸易英语不论在词义上,用法表达上,还是在专业行话上,与普通英语都有所不同,因此,在翻译过程中,也要注意到这些区别。

The Aussat B-1 be Relaunched Soon

The exact cause of the accidenton March 22 when a launch ofAussat B-1 was attempted has beenfound out.Minute aluminium par-ticles in a control contact of the fir-ing circuit of the LM-2E have beenblamed for the unsuccessful launch.

Jejunum and ileum

930134 Chronic intestinal pseudo-obstruc-tion:An analysis of 8 cases.WANG Xiuling(王秀玲),et al.Dept Med,Xinhua Hosp,Shanghai2nd Med Univ.Chin J Digest 1992;12(3):148-150.This report describes 8 cases of chronic in-testinal pseudoobstruction.Among them 6 pa-tients underwent exploratory laparotomy,and nomechanical obstructive lesions could be found.The remaining two cases had a clinical syndromecharacterized by symptoms and signs of intesti-nal pseudo-obstruction and a typical