• 제목/요약/키워드: Cutoff Score

검색결과 98건 처리시간 0.022초

범죄수사를 위한 거짓말탐지 검사(polygraph test)의 판정기준과 정확성 (The cutoff criterion and the accuracy of the polygraph test for crime investigation)

  • 한유화 ;박광배
    • 한국심리학회지 : 문화 및 사회문제
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    • 제14권4호
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    • pp.103-117
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    • 2008
  • 한국의 검찰에서는 거짓말탐지검사(polygraph test)의 최종판정을 위한 기준 점수로써 관행적으로 -12점을 사용하고 있다. 이 판정기준 점수는 검사기법을 개발한 Backster(1963)가 제안한 판정기준 점수(-13점)와는 약간 다른 것으로 한국에서 거짓말탐지 검사를 표준화하기 위해서는 판정기준 점수에 대한 과학적 근거와 그 정확성에 대한 검증이 필요하다. 본 연구에서는 실제 범죄수사를 위하여 검찰에서 이루어진 거짓말탐지 검사 자료를 이용해서 거짓말탐지 검사의 판정기준 점수를 신호탐지이론에 기초하여 설정하고자 하였다. 또한 Backster가 제안한 판정기준 점수와 현재 검찰에서 사용하는 판정기준 점수, 신호탐지이론에 기초해서 본 연구가 설정한 판정기준 점수의 정확성을 비교하여 범죄수사를 위한 거짓말탐지검사의 검사 상황에 가장 적절한 판정기준 점수를 제시하고자 하였다. 신호탐지이론에 기초해서 거짓말탐지검사의 정확성을 최대화할 수 있는 판정기준 점수를 산출한 결과 -8점으로 나타났다. 또한 판정기준 점수를 도출한 표본자료와 다른 별도의 표본자료에서 판정기준 점수에 따른 정확성을 비교한 결과, -8점을 판정기준 점수로 사용했을 경우의 정확성(83.17%)이 가장 높았고, 검찰의 판정기준 점수(80.20%), Backster의 판정기준 점수(76.24%) 순으로 정확성이 감소하였다. 그러나 오류긍정과 오류부정의 비율을 비교한 결과에서는 -8점을 판정기준으로 사용할 때에 오류긍정이 가장 높은 것으로 나타났다. 따라서 범죄수사를 위한 거짓말탐지검사에서 전체적인 판단 정확률을 확보하는 것이 중요하다면 -8점을 기준 점수로 사용하고, 진실을 말하는 사람을 거짓이라고 판단하지 않는 것이 중요하다면 -12 또는 -13점을 판정기준 점수로 사용할 것이 권고 되었다.

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경증 및 중증 외상성 뇌손상 환자의 성격평가 질문지 프로파일 (Personality Assessment Inventory Profiles of Patients with Mild and Severe Traumatic Brain Injury)

  • 권석준;노승호
    • 생물정신의학
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    • 제12권1호
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    • pp.20-31
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    • 2005
  • Objectives:This study was designed to investigate the characteristics of personality changes and emotional distress using the Personality Assessment Inventory (PAI) in patients with traumatic brain injury(TBI), divided into mild (MTBI) and severe (STBI) groups according to the severity of injury. Methods:The subjects were consisted of 25 patients with MTBI, 25 patients with STBI, and 25 normal controls. They were interviewed with the PAI. The data were analyzed by ${\chi}^2$ test, analysis of variance and Tukey test. Results:The results were the followings. First, Negative Impression in validity scales was elevated above cutoff point(T score 70) in both MTBI and STBI groups. Second, the clinical scales of which scores elevated above the cutoff point were Somatic Complaints, Anxiety, Anxiety-Related Disorders, Depression, and Schizophrenia in the MTBI, and Somatic Complaints and Depression in the STBI. Third, the clinical subscales above the cutoff point were Conversion, Somatization, Health Concerns, Affective Anxiety, Physiological Anxiety, Traumatic Stress, Cognitive Depression, Affective Depression, Physiological Depression, Thought Disorder, and Affective Instability in the MTBI, and Health Concerns, Cognitive Depression, Affective Depression, and Physiological Depression in the STBI. Fourth, Suicide Ideation in treatment scales was the only scale above the cutoff point in the MTBI and the others of the treatment and interpersonal scales in the MTBI and all of these scales of the STBI were not elevated above the cutoff point. Fifth, the scales of which scores showed significant difference between the MTBI and the STBI were Somatic Complaints, Anxiety, Depression, and Suicide Ideation, the subscales were Conversion, Somatization, Health Concerns, Affective Anxiety, Physiological Anxiety, Physiological Depression, and Psychotic Experiences. Conclusion:These results suggest that the patients with MTBI had more somatic and anxiety symptoms, depressed mood, and suicidal ideation than the patients with STBI. These characteristics are generally consistent with clinical observation and findings from previous studies of the patients with TBI, and the PAI seems to be a beneficial adjunctive assessment tool for the evaluation of patients with traumatic brain injury.

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MRI Findings in Trigeminal Neuralgia without Neurovascular Compression: Implications of Petrous Ridge and Trigeminal Nerve Angles

  • Hai Zhong;Wenshuang Zhang;Shicheng Sun;Yifan Bie
    • Korean Journal of Radiology
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    • 제23권8호
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    • pp.821-827
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    • 2022
  • Objective: To determine the anatomical characteristics of the petrous ridge and trigeminal nerve in trigeminal neuralgia (TN) without neurovascular compression (NVC). Materials and Methods: From May 2017 to March 2021, 66 patients (49 female and 17 male; mean age ± standard deviation [SD], 56.8 ± 13.3 years) with TN without NVC and 57 controls (46 female and 11 male; 52.0 ± 15.6 years) were enrolled. The angle of the petrous ridge (APR) and angle of the trigeminal nerve (ATN) were measured using magnetic resonance imaging with a high-resolution three-dimensional T2 sequence. Data on the symptomatic side were compared with those on the asymptomatic side in patients and with the mean measurements of the bilateral sides in controls. Receiver operating characteristic (ROC) analysis was conducted to evaluate the performance of APR and ATN in distinguishing TN patients from controls. Results: In TN patients without NVC, the mean ± standard deviation (SD) of APR on the symptomatic side (98.40° ± 19.75°) was significantly smaller than that of the asymptomatic side (105.59° ± 22.45°, p = 0.019) and controls (108.44° ± 15.98°, p = 0.003). The mean ATN ± SD on the symptomatic side (144.41° ± 8.92°) was significantly smaller than that of the asymptomatic side (149.67° ± 8.09°, p = 0.003) and controls (150.45° ± 8.48°, p = 0.001). The area under the ROC curve for distinguishing TN patients from controls was 0.673 (95% confidence interval [CI]: 0.579-0.758) for APR and 0.700 (CI: 0.607-0.782) for ATN. The sensitivity and specificity using the diagnostic cutoff yielding the highest Youden index were 81.8% (54/66) and 49.1% (28/57), respectively, for APR (with a cutoff score of 94.30°) and 65.2% (43/66) and 66.7% (38/57), respectively, for ATN (cutoff score, 148.25°). Conclusion: In patients with TN without NVC, APR and ATN were smaller than those in controls, which may explain the potential cause of TN and provide additional information for diagnosis.

전화조사를 위한 단축형 한국판 문제 도박 지표의 개발 (Shortened Problem Gambling Severity Index for Telephone Surveys)

  • 권선중;조성겸
    • 한국조사연구학회지:조사연구
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    • 제11권3호
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    • pp.19-32
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    • 2010
  • 본 연구에서는 일반인들의 도박 중독 유병률 조사에 활용할 수 있는 단축형 조사도구를 개발하고, 도박 중독자 선별을 위한 기준점(cutoff score)을 탐색했다. 먼저 501명의 도박 이용자들을 대상으로 K-PGSI(Korean Problem Gambling Severity Index)의 단축형 척도를 개발했다. 문항을 선별하기 위해 원척도의 요인부하량과 문항-총점 간 상관, 응답자들의 반응 빈도나 전문가의 경험적 판단 등을 단계적으로 참고하여 요인타당도와 신뢰도가 양호한 네 문항의 단축형 척도를 개발했다. 다음으로 일반인 1,584명을 대상으로 단축형 척도를 교차타당화 하고, 도박 중독자 선별을 위한 기준점을 개발했다. 단축형 척도의 기준점으로 도박 중독 집단을 선별할 때 나타난 민감도(sensitivity)와 특이도(specificity)는 각각 1.00과 0.99로 모두 우수했다. 끝으로 도박 중독 유병률 조사에 본 척도를 어떻게 활용할 수 있을지 논의하였다.

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Psychometric Properties of Korean Version of Modified Leeds Sleep Evaluation Questionnaire (KMLSEQ)

  • Kim, Inja;Choi, Heejung;Kim, Beomjong
    • 재활간호학회지
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    • 제17권1호
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    • pp.10-17
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    • 2014
  • Purpose: The Leeds Sleep Evaluation Questionnaire (LSEQ) translated into Korean was modified to easily apply and reduce respondents' confusion and was evaluated for psychometric properties and discriminant ability. Methods: A total of 960 Korean adults aged 45 years and older participated in this cross-sectional survey. To test reliability, validity and discriminant ability, Cronbach's alpha, correlation analysis, confirmatory factor analysis, simple regression analysis and receiver operating characteristics (ROC) curve analysis were used. Results: Item-total correlations ranged between 62~.85 and Cronbach's alpha was .95. Area under ROC was .86 (95% CI: .83~.90) and the optimal cutoff score was identified as ${\leq}$ 66 (sensitivity, .77; specificity, .84; positive/negative predictive values, .49/.95). Using this cutoff score, the prevalence of insomnia in the study sample was 25.8% and tended to be more common in female and older groups. Conclusion: The data supported the psychometric properties of Korean Modified Leeds Sleep Evaluation Questionnaire (KMLSEQ) as an acceptable sleep measurement. In addition, KMLSEQ is likely to be a useful screening tool for insomnia.

복분자(覆盆子)의 세포내 ROS, $ONOO^-$ 생성 및 $Ca^{2+}$ 증가 억제에 의한 혈관내피세포 보호작용 (Cytoprotective action of Rubi Fructus by modulation of Reactive Oxygen Species, peroxynitrite and $Ca^{2+}$)

  • 이철웅;정지천
    • 대한한방내과학회지
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    • 제26권3호
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    • pp.615-625
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    • 2005
  • Objectives : Poststroke depression is a frequent and specific entity that impaires the rehabilliation and functional recovery of patients with hemiplegia. The author evaluated the effect of Banhahubak-tang(Banxiahoupotang) in patients with poststroke depression. Methods : 38 patients suffering from poststroke depression(determined by Diagnostic and Statistical Manual of Mental Disorders, revised. 3rd edition. and Beck Depression Inventory[BDI] cutoff $point{\geqq}10$) in Kyunghee Oriental hospital were randomized into two groups; treatment group(n=19) and control group(n=19). The treatment group was prescribed with Banhahubak-tang(Banxiahoupotang) three times a day fur a week. Control troop was prescribed with other herbal medicines used for stroke Patients three times a day for a week. Patients were evaluated by use of BDI scale, Modified Barthel Index, Depression of Ki score, Yin syndrome score, and Yang syndrome score. Among 38 patients, 24 patients got BDI scores above 21, which is the cut-off score for depression in Korean. The same procedures and assessments described above were applied. Results : Treatment group did not significantly improve compared with control group. Results yielded only slight significance (P=0.086). Especially. patients with poststroke depression as yin syndrome improved more significantly on BDI than those classified as yang syndrome. When BDI cutoff point for depression was defined as being ${\geq}\;21$, treatment group did not significantly improve compared with control group(P=0.114). However, patients with poststroke depression classified as yin syndrome were also significantly improved on BDI than those classified as yang syndrome. Conclusions : This study suggests that Banhahubak-tang(Banxiahoupotang) is significantly effective in patients with poststroke depression classified as yin syndrome.

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한국판 식사태도검사-26(The Korean Version of Eating Attitudes Test-26 : KEAT-26) 표준화 연구 I : 신뢰도 및 요인분석 (A Standardization Study of the Korean Version of Eating Attitudes Test-26 I : Reliability and Factor Analysis)

  • 이민규;이영호;박세현;손창호;정영조;홍성국;이병관;장필립;윤애리
    • 정신신체의학
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    • 제6권2호
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    • pp.155-175
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    • 1998
  • The purpose of this study was to test a reliability and validity of the Korean version of Eating Attitudes Test-26(KEAT-26). Using multi-stage sampling, we finally got 3,496 subjects(1422 males and 2074 females) who were available for analysis from target 4,400 Korean adults over 18 in the nationwide areas of9 kus, 10 middle or small cities, and 17 kuns. We tried to make T score norm of the KEAT-26 as a cutoff score and STEN score norm as a index of severity for disordered eating behaviors. For the male group, Cronhach's internal consistency was .83 and Spearman-Brown split half correlation coefficiency was .75. For the female group, each of them was .81 and .75, and .81, .75 for the grand total group respectively. Validity test was performed by construct validation analysis. By a iterated principal axis factoring, 4 factors were extracted. There were some differences in the factors of the KEAT-26 by sex. In the male group, factor I was 'self-control of eating and bulimic symptom', factor II was 'food preoccupation and dieting', factor III was 'preoccupation with being thinner', factor N was 'avoidance of sweet foods'. In contrast with the male group, factor I was 'self-control of eating and bulimic symptom', factor II was 'preoccupation with being thinner', factor III was 'food preoccupation' and factor N was 'dieting' in the female group. We used T score 65 as a cutoff score. T score 65 corresponded to raw score 19 in the male group, 22 in the female group and 21 in the grand total group. Severity of disordered eating behaviors was measured by a STEN score. In the male group, each of the score range of 0-10, 11-14, 15-18, 19-22 and over 23 represented the degree of none, subclinical, manifest, moderate and severe severity respectively. Each of the score range of 0-13, 14-17, 18-21, 22-26 and over 27 in the female group, and the score range of 0-12, 13-16, 17-20, 21-25 and over 26 in the grand total group also represented the same degree of severity as like in the male group. These results support that KEAT-26 is a reliable and valid scale for evaluating disordered eating behaviors and eating problems.

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한국판 식사태도검사-26(The Eating Attitude Test-26 : KEAT-26) 의 타당화 (A Validation of The Korean Version of Eating Attitude Test-26)

  • 이민규;고영택;이혜경;황을지;이영호
    • 정신신체의학
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    • 제9권2호
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    • pp.153-163
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    • 2001
  • 본 연구는 KEAT-26의 변별 타당도를 알아보고 이 척도의 진단적(분류적) 효율성을 알아보기 위해서 이루어졌다. 참여자는 여성 식사장애 환자 108명, 체형관리센터에서 체형관리프로그램에 참여하고 있는 여성 179명, 체대운동여학생 120명, 일반여자대학생 227명 그리고 일반여자 183명(총 817명)이었다. 변량분석과 ROC(Receiver Operating Characteristic Curve) 곡선 분석을 통해서 이 척도의 타당화를 시도하였다. 그 결과 KEAT-26 총점수가 집단간에 통계적으로 유의한 차이를 보였으며, 사후 검증에서 식사장애 환자집단이 다른 모든 집단보다 KEAT-26 점수가 유의하게 높았다. 그리고 각 집단에 따른 KEAT-26의 4 개 하위 요인점수의 차이 검증에서 모든 하위요인들에서 집단의 주 효과가 유의하였으나, 사후검증에서 요인 IV의 변별력이 떨어졌다. ROC 곡선 분석을 통하여 이 척도의 분류적인 효용성과 최대의 가질 때의 절단접수를 알아본 결과 식사장애 환자와 정상인 집단을 분류할 때 평균 약 80%이상의 효용성이 있으나 식사장애 고위험 집단을 변별할 때는 평균 약 69%의 효용성을 보였다. 특히, 최고의 효용성을 보일 때의 절단점수를 효면, 식사장애환자와 체형관리자를 분류할 때 절단점이 25점, 식사장애환자와 일반 여자를 분류할 때 분류점수는 19 점, 삭사장애환자 대 체대운동여학생의 분류 점수는 23점, 식사장애환자 대 일반여대생의 절단점은 21점이었다. 이민규 등(1998)이 제안한 T점수 65에 해당하는 KEAT-26의 총점 22점을 절단점수로 했을 때 이 척도의 민감도 54%, 특이도 84%, 효율성은 평균 80% 이었다. 본 연구 결과 KEAT-26온 한국 사람이 겪고 있는 식사문제에 관련된 연구에 필요한 신뢰롭고 타당한 도구임을 밝혀졌다. 또한 본 연구결과는 이 척도가 임상적인 이용 뿐 만 아니라 역학조사 동의 목적으로 식사문제가 있는 사람을 선별하는데도 유용한 도구임을 지지해 준다.

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Talin-1 and Non-invasive Fibrosis Models in the Assessment of Patients with Hepatocellular Carcinoma

  • Alsebaey, Ayman;Ahmedy, Iman Aly
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권8호
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    • pp.4077-4082
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    • 2016
  • Background: Hepatocellular carcinoma (HCC) is a dreadful complication of end stage liver disease with high morbidity and mortality. Aim: The aim was to assess the role of serum talin-1 and non-invasive fibrosis in patients with HCC. Materials and Methods: A total of eighty seven subjects were enrolled, with 22 two healthy individuals as a control group (n=22), 22 patients in the cirrhosis group and finally 43 in the group with HCC diagnosed with positive triphasic CT abdomen criteria. Serum talin-1 and noninvasive fibrosis parameters were assessed in all subjects. Results: Compared to the cirrhosis group, patients with HCC had higher serum talin-1 ($32.9{\pm}12.6$ vs. $11.1{\pm}2.79ng/ml$), FIB4 ($9.96{\pm}15.3$ vs. $2.90{\pm}1.87$) and $fibro-{\alpha}$ ($10.9{\pm}18.1$ vs. $1.55{\pm}0.28$) but not fibrosis index scores ($4.47{\pm}0.95$ vs. $4.98{\pm}0.96$; p=0.046). Patients with large focal lesions (${\geq}5cm$) had different ALBI scores ($-1.02{\pm}0.63$ vs. $-1.72{\pm}0.59$; p=0.001) serum talin-1 ($9.72{\pm}13.81$ vs. $28.6{\pm}38.89ng/ml$; p=0.007) and fibrosis index scores ($0.85{\pm}0.99$ vs. $4.20{\pm}4.85$; p=0.026). No statistical differences were noted between patients with and without portal vein thrombosis. For detection of HCC, serum talin-1 had 97.7% sensitivity and 100% specificity with a 17.2 ng/ml cutoff. AFP at a 13.7 ng/ml cutoff had 72.1% sensitivity and 6.3.6% specificity. The cutoff for the $fibro-{\alpha}$ score was 1.61 with 81.4% sensitivity and 77.3% specificity. Serum talin-1 (odds=1.08; C.I=1.016-1.150; p=0.014), fibrosis index score (odds=2.35; C.I=1.055-5.217; p=0.037) and the ALBI score (odds=6.9; C.I=1.924-24.708; p=0.003) were predictors of large focal lesions. Conclusions: Serum talin-1, AST/ALT ratio, $fibro-{\alpha}$ score are useful for the assessment of HCC patients.

급성 약물 중독 환자에서 Poisoning Severity Score (PSS)를 이용한 중증도 분류와 중증도 분류에 있어 PSS 값과 PSSsum 값의 Optimal Cutoff Value (Classify the Acute Drug Intoxication Patients with Poisoning Severity Score(PSS) and Calculate the Optimal Cutoff Value of PSS, PSSsum to Predict Poor Prognosis)

  • 박현우;박하영;김한별;박건우;이상훈;이현욱;이제원;황태식
    • 대한임상독성학회지
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    • 제16권2호
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    • pp.75-85
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    • 2018
  • Purpose: This study examined the Poisoning Severity Score (PSS) from acute poisoning patients, to determine the relationships among the PSS, PSSsum, the primary outcome (prolonged stay at the ER over 24 hours, general ward and ICU admission and the application of intubation and mechanical ventilator, and the administration of inotropes). Methods: A retrospective study was conducted through the EMR for 15 months. The PSS grade was classified according to the evidence of symptoms and signs. The differences in the primary outcomes between the PSS of when a single organ was damaged, and the PSS, PSSsum combined with the grade of when multiple organs were damaged, were studied. The cutoff value was calculated using the receiving operating characteristics (ROC) curve. Results: Of the 284 patients; 85 (29.9%) were men with a mean age of 48.8 years, and their average arrival time to the ER was $4.4{\pm}6.7\;hours$. The most frequently used drug was hypnotics. The number of patients with PSS grade 0, 1, 2, 3, and 4 was 17, 129, 122, 24, and one, respectively. No ICU admissions, application of intubation and mechanical ventilators, administration of inotropes were observed among the patients with PSS grades 0 and 1 but only on patients with PSS grades 2 to 4. At PSS, when separating the patients according to the number of damaged organs, 17 had no symptoms, 133 had one organ damaged, 75 had two organs damaged, 36 had three organs damaged, and 23 had four organs damaged. Significant differences were observed between increasing number of damaged organs and the primary outcome. Conclusion: Among the acute poisoning patients, the PSS was higher in severity when the grade was higher. The number of damaged organs and the primary outcome showed meaningful statistical differences. This study confirmed that when the patients' PSS>2 and PSSsum>5, the frequency of ICU admission was higher, and they were considered to be severe with an increased prescription risk of application of intubation and mechanical ventilator, and the administration of inotropes.