• 제어로봇시스템학회:학술대회논문집
• /
• 2003.10a
• /
• pp.2112-2115
• /
• 2003

In this paper, we describe a SSAS (stepping stones attack simulator) that is automatic tool for testing and evaluation in TCP connection traceback system. The SSAS can pass multiple hosts that are included with hacker, middle-path hosts and victim’s system. And SSAS can also attack through commands to exploit the victim’s system. Usually, hackers do not expose their real attack positions through compromising the middle-path hosts like stepping-stones. Namely, hackers perform the stepping stones attacks in Internet. The SSAS can be utilized by developments and tests of the various countermeasure techniques of hacking. Specially, in this paper, it is used to test the performance of TCP connection traceback system.

• Korean Journal of Psychosomatic Medicine
• /
• v.17 no.1
• /
• pp.30-36
• /
• 2009

Objectives : Thyroid function is associated with psychiatric disturbance such as mood symptoms, cognitive functions, anxiety and sleep problem. We evaluate the effects of thyroid dysfunction on negative symptoms of schizophrenia, mood symptoms and somatic symptoms in patients with schizophrenia. Methods : Sixty five patients with schizophrenia were recruited. The patients were classified into two groups; the patients with the history of abnormal thyroid indices level(group of abnormal thyroid function) and the patients without the history of normal thyroid indices level(group of normal thyroid function). At baseline and 8 weeks later, psychiatric symptoms were assessed with the Scale for the Assessment of Negative Symptoms (SANS), the Scale for the Assessment of Positive Symptoms(SAPS), and Beck Depression Inventory(BDI), Somatosensory Amplication Scale(SSAS). Results : During 8 weeks, there were significant differences in the changes of SANS, BDI, SSAS between group of abnormal thyroid function and group of normal thyroid function. Compared to group of normal thyroid function, group of abnormal thyroid function showed greater reduction of the scores of SANS(23.3%), BDI (19.6%), and SSAS(16.2%), respectively. However, there was no significant correlation between the scores of SANS, BDI, and SSAS. Conclusion : Our study suggested that abnormal thyroid indices would predict the prognosis of negative symptoms, mood symptoms, and somatic symtpoms in patients with schizophrenia.

• Journal of Radiation Protection and Research
• /
• v.23 no.4
• /
• pp.259-266
• /
• 1998

There are three different types of gynecological applicator sets available in microSelectron-high dose-rate(HDR) System by Nucletron; standard applicator set(SAS), standard shielded applicator set(SSAS), and Fletcher-Williamson applicator set(FWAS). Shielding effect of a SAS without shielding material was compared with that of a SSAS with shielding material made of stainless steel(density ${\varrho}=8,000kg/m^3$) at the top and bottom of each ovoid, and of a FWAS with shielding material made of tungsten alloy(density ${\varrho}=14,000kg/m^3$ at the top and bottom of each ovoid. The shielding effects to the rectum and bladder of these two shielded applicator sets were to be measured at reference points with an ion chamber and specially designed supporting system for applicator ovoids inside of the computerized 3-dimensional water phantom. To determine the middle point of two ovoids the measurement was performed with the reference tip of ion chamber placed at the same level and at the middle point from the two ovoids, while scanning the dose with the ion chamber on each side of ovoids. The doses to the reference points of rectum were measured at 20(Rl), 25(R2), 30(R3), 40(R4), 50(R5), and 60(R6) mm located posteriorly on the vertical line drawn from M5(the middle dwell position of ovoid), and the doses to the bladder were measured at 20(Bl), 30(B2), 40(B3), 50(B4), and 60(B5) mm located anteriorly on the vertical line drawn from M5. The same technique was employed to measure the doses on each reference point of both SSAS and FWAS. The differences of measured rectal doses at 25 mm(R2) and 30 mm(R3) between SAS and SSAS were 8.0 % and 6.0 %: 25.0% and 23.0 % between SAS and FWAS. The differences of measured bladder doses at 20 mm(Bl) and 30 mm(B2) between SAS and SSAS were 8.0 % and 3.0 %: 23.0 % and 17.0 % between SAS and FWAS. The maximum shielding effects to the rectum and bladder of SSAS were 8.0 % and 8.0 %, whereas those of FWAS were 26.0 % and 23.0 %, respectively. These results led to the conclusion that FWAS has much better shielding effect than SSAS does, and when SSAS and FWAS were used for gynecological intracavitary brachytherapy in microSelectron-HDR system, the dose to the rectum and bladder was significantly reduced to optimize the treatment outcome and to lower the complication rates in the rectum and bladder.

• Perspectives in Nursing Science
• /
• v.8 no.2
• /
• pp.156-166
• /
• 2011

Purpose: The purpose of this study was to understand the process of exercise adherence in middle aged women. Methods: The qualitative theme analysis method was used. The participants were 11 middle-aged women who had exercised over 6 months. Data were collected through in-depth interviews and recorded by and transcribed immediately. The data were coded with similar meaning and analysis themes with the constant comparative method. Results: The core theme was Stepping Stones Across the Stream (SSAS). The Stone means the adherence factors in exercise. The stream means the interrupting factors in exercise adherence. The subcategories were 1) feeling of developmental crisis, 2) searching for exit (from the developmental crisis), 3) finding a surprising new world (full of fun), 4) confronting the situation of dropout, and 5) adherence to exercise by SSAS. Conclusion: The predisposition of fun in middle aged women for the adherence of exercise should be explored along with more adherent factors.

• Carbon letters
• /
• v.14 no.1
• /
• pp.55-57
• /
• 2013

The development of hollow carbon balls by $CO_2$ oxidation of two types of carbon blacks was studied. Super P (SP) and Denka Black (DB) were used for this study. Specific surface area (SSA), structural parameters, and microstructures were examined using Brunauer, Emmett and Teller apparatus, X-ray diffraction spectroscopy, and transmission electron microscope (TEM), respectively. The SSAs of both oxidized carbon blacks increased after oxidation. The SSAs of raw DB and SP were 73 $m^2/g$ and 60 $m^2/g$, respectively. Maximum SSAs of oxidized DB and SP were 152 $m^2/g$ and 253 $m^2/g$, respectively. The $d_{002}$ of DB and SP showed almost no change after oxidation. The Lc of raw DB ($38{\AA}$) and SP ($19{\AA}$) increased with increasing weight loss. The $L_c$ of SP increased up to $254{\AA}$ at 96% weight loss. The SSA increased about twice in DB (148 $m^2/g$) and about four times in SP (254 $m^2/g$) after 3 h oxidation compared with the original carbon blacks. Through TEM observation the outer parts of the oxidized carbon blacks showed a rigid shell structure and the inner parts looked empty. Generally it looked like an angular soccer ball, so we named it 'hollow carbon ball'. It is expected that the hollow carbon ball can be used as catalyst supports.

• Korean Journal of Psychosomatic Medicine
• /
• v.29 no.2
• /
• pp.102-110
• /
• 2021

Objectives : The purpose of this study is to investigate the characteristics of the perception of the somatic symptoms and the cognitive emotion regulation strategies in patients with posttraumatic stress disorder (PTSD). Methods : A total of 48 patients meeting DSM-5 criteria for PTSD and 48 normal controls were recruited for participation in this study. We evaluated subjects using Clinician-Administered PTSD Scale (CAPS), Somato-Sensory Amplification Scale (SSAS), Hamilton Anxiety Scale (HAM-A) and Cognitive Emotion Regulation Questionnaire (CERQ). We analyzed data using an independent t-test and Pearson's correlation analysis. Results : In terms of SSAS, PTSD patients presented higher average SSAS scores than normal controls but the result is not statistically significant. In PTSD patients, the severity of PTSD is significantly correlated with CERQ-rumination and CERQ-catastrophizing. The SSAS scores of PTSD patients show the significant positive correlation with PTSD hyperarousal symptoms, CERQ-catastrophizing and CERQ-blaming others. Conclusions : These results reveal that patients with PTSD have maladaptive cognitive emotion regulation strategies such as rumination and catastrophizing. Somato-sensory amplification seems to be related with PTSD hyperarousal, CERQ-catastrophizing and CERQ-blaming others. Therefore, reducing somato-sensory amplification, rumination and catastrophizing can be helpful to reduce PTSD symptoms and somatic symptoms in PTSD patients.

• Korean Journal of Child Studies
• /
• v.16 no.1
• /
• pp.197-210
• /
• 1995

The purpose of this study was to investigate the relationship between social support and perception of self-confidence in children by grade, sex, and other related variables. The subjects were 136 third-graders, 143 sixth-graders, and 161 eighth-graders in public schools located in Pusan. Instruments were Harter's Self-Perception Profile for Children and the Social Support Appraisal Scale (SSAS). The SSAS is a 31-item measure that taps children's perception of family, peer, and teacher support. The data were analyzed by frequency, percentile, ANOVA, Scheffe test, Pearson's correlation, and multiple regression. The main results showed that (1) children in 6th and 8th grades perceived higher peer support than children in 3rd grade, (2) except for social acceptance, the children in higher grades perceived themselves lower in self-competence than the children in lower grades, (3) there was a positive relationship between children's perception of self-competence and social support, and (4) the variables which influenced children's self-perception were, in descending order: socioeconomic status(${\beta}=.52$), age(${\beta}=.21$), social support(${\beta}=.10$). These three variables explained 38% of the children' self-perception.

• Korean Journal of Child Studies
• /
• v.13 no.2
• /
• pp.175-188
• /
• 1992

This study investigated the relation between stressful life events and adjustment in elementary school children, with particular emphasis on the potential main and stress-buffering effects of social support and social problem solving skills. 4-6 graders (N=170) completed the Social Support Appraisals Scale(SSAS) and social problem solving skills task. The SSAS is a 31-item measure that taps the child's perceptions or appraisals of family, peer, and teacher support. Their parents provided ratings of stress in the child's environment and ratings of the child's behavioral adjustment. Teachers provided ratings of the child's behavioral and academic adjustment. Hierarchical multiple regression analyses and graphic display were used to analyze the data. The major findings were that (1) The results for parent-rated problems supported a stress-buffering model for family support and problem solving. (2) The results for teacher-rated problems were consistent with the stress-buffering model of social support. (3) The results for grade-point average supported a main effect model for problem solving. peer support, and family support. In addition, teacher support had the strongest stress-buffering effect on grade-point average.

• Anxiety and mood
• /
• v.3 no.2
• /
• pp.116-122
• /
• 2007

Objective : The purpose of this study was to investigate the strategies used to cope with stress and the cognitive characteristics of somatic symptom perception in patients with panic disorder. Methods : A total of 101 patients who met the DSM-IV criteria for panic disorder and 60 normal controls were recruited for participation in this study. We evaluated the subjects using The Way of Stress Coping Questionnaire (SCQ), Somato-Sensory Amplification Scale (SSAS), Symptom Interpretation Questionnaire (SIQ), and the Panic Disorder Severity Scale (PDSS). We analyzed the data using an independent t-test and Pearson correlation analysis (p<0.05). Results : The patients who used emotionally focused coping strategies scored significantly lower on the SCQ. The patients with panic disorder showed greater amplification of body sensations in the SSAS, a significantly higher score on the physical interpretation subset of the SIQ, and a lower score on the environmental interpretation subset of the SIQ than the normal controls. The PDSS scores were positively correlated with the SSAS score and physical interpretation score on the SIQ. Conclusion : These results show that patients with panic disorder have poor emotionally focused strategies for coping with stress, greater amplification of body sensations, and a tendency towards a physical interpretation of somatic symptoms.

• Anxiety and mood
• /
• v.13 no.2
• /
• pp.100-107
• /
• 2017

Objective : The purpose of this study was to investigate strategies used to cope with stress and the cognitive characteristics of somatic symptom perception in patients with generalized anxiety disorder(GAD). Methods : A total of 55 patients meeting DSM-5 criteria for GAD and 55 normal controls were recruited for participation in this study. We evaluated subjects using The Way of Stress Coping Questionnaire (SCQ), Somato-Sensory Amplification Scale (SSAS), Symptom Interpretation Questionnaire (SIQ), and the Generalized Anxiety Disorder for 7 Item (GAD-7). We analyzed data using an independent t-test and Pearson's correlation analysis. Results : In terms of SCQ, GAD patients presented significantly lower scores on seeking social support and higher scores on wishful thinking than normal controls. GAD patients had significantly greater amplification of physical sensation in SSAS and higher scores in physical, psychological interpretation subsets of SIQ than normal controls. GAD-7 scores were positively correlated with physical interpretation scores on SIQ. Conclusion : Results reveal that patients with GAD have insufficient coping strategies for stress, greater amplification of body sensations, and tendency towards a physical, psychological interpretation of somatic symptoms.