• Title/Summary/Keyword: Positive and negative pressure

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The Correlation of Foot Pressure with Spinal Alignment in Static Standing (정적 기립 자세에서 족저압 분포와 척추 정렬과의 상관관계 연구)

  • Lim, Jae-Heon;Ko, Hyo-Eun
    • PNF and Movement
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    • v.12 no.1
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    • pp.13-17
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    • 2014
  • Purpose: To determine the normative data for the correlation of spinal, pelvic parameters with foot pressure in the young subjects. Methods: The subjects of this study were 39 patients in healthy adults. The Formetric-III was used to measure of spinal alignment. The pedoscan was used to measure of foot pressure. The correlation of trunk imbalance, trunk inclination, lateral deviation with foot pressure. The foot pressure measurement was consisted of maximal/mean pressure, weight contribution. Result: There was a negative correlation of trunk inclination with Max_R. There was a negative correlation of trunk inclination with Max_R. There was a positive correlation of trunk imbalance with Max_L. There was a positive correlation of lumbar lordosis with Mean_R_front, Lt. posterior weight distribution. There was a negative correlation of lumbar lordosis with Lt., Rt. in distribution There was a negative correlation of pelvic tilt with Mean_R_front, Lt. posterior weight distribution. There was a positive correlation of pelvic tilting with Rt. weight distribution, Lt. posterior weight distribution. There was a negative correlation of pelvic torsion with Lt. weight distribution, Rt. posterior weight distribution. There was a negative correlation of pelvic rotation with Lt. weight distribution, Lt. posterior weight distribution. Conclusion: The data obtained from the study may be used for future studies related to correlation of the spinal, pelvic deviation with foot pressure.

The Effects of Performance Pressure on Positive Psychological Capital: Focusing on the Moderating Effect of Zhongyong Thinking (성과압박이 긍정심리자본에 미치는 영향: 중용적 사고의 조절효과를 중심으로)

  • Jang, Jun-ho;An, Daniel
    • Journal of Digital Convergence
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    • v.20 no.5
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    • pp.345-349
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    • 2022
  • This study focused on verifying the moderating effect of Zhongyong thinking in the relationship between performance pressure and positive psychology capital. In particular, the main effects of mitigating negative effects through the Zhongyong of Oriental classics were examined. A survey was conducted on employees of local public institutions and private enterprises engaged in manufacturing and service industries. This study was used for analysis a survey on data 239 employees. The major finding are as follows. Performance pressure was found to have a negative effect on positive psychological capital. Also, Zhongyong thinking was found to have a moderating effect that alleviated the negative impact between performance pressure and positive psychological capital. In the conclusion, practical implications, and future research directions were described.

Synthesis and Application of Photochromic Spiroxazine Dyes (광색변성 Spiroxazine계 색소의 합성과 응용)

  • 손세모
    • Journal of the Korean Graphic Arts Communication Society
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    • v.10 no.1
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    • pp.23-33
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    • 1992
  • The negative pressure distribution curves of the exit of printing nip were obtained by the transducer type tackometer. As the results, found that the elasticity of rubber rollers and pastic viscosity affect to the maximum negative and positive pressure but, the gap of the printing nip didn`t affects to the tack values of ink and ink film thickness. Ink spritting is accured by negative pressure and inks viscoelasticity. And the tack value is affect by properties of the vehicle component in the inks.

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Characterization of oxygen plasma by using a langmuir probe in the inductively coupled plasma (정전 탐침을 이용한 유도 결합형 반응기에서 발생하는 산소 플라즈마의 특성연구)

  • 김종식;김곤호;정태훈;염근영;권광호
    • Journal of the Korean Vacuum Society
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    • v.9 no.4
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    • pp.428-435
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    • 2000
  • Negative ion generation in an inductively coupled oxygen plasma was investigated by using a Langmuir probe. It was observed that the probe current ratio of the positive ion saturation current and the negative current which is consisted of the electron current and the negative ion current, and also the potential difference between the floating potential and plasma potential vary with the RF input power and more sensitively with the operating pressure, respectively. Results show that the operating condition to achieve the maximum probe current ratio and the minimum potential difference shift from the low pressure region to the high pressure regions with increasing the input power. It implies that the generation of the negative oxygen ions increases and the recombination of the positive and negative ions are enhanced in the plasma.

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Diagnosis of Malignant Biliary Strictures: Conventional or Negative Pressure Brush Cytology?

  • Abbasi, Mohammad Reza;Mirsaeed, Seyedeh Masoumeh Ghazi;Alizadeh, Amir Houshang Mohammad
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.10
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    • pp.4563-4566
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    • 2016
  • Background/Objective: The aim of this study was to perform a comparative evaluation of the yields of conventional brush cytology and brush cytology with negative pressure in the diagnosis of malignant biliary strictures. Methods: A total of 132 consecutive patients undergoing endoscopic were identified. Of these, 88.0 had brush cytology after ERCP and 44 were Brush cytology with negative pressure. Retrograde cholangiopancreatography (ERCP) including brush cytology and brush cytology with negative pressure in patients with biliary strictures between 2012-2015. Endoscopic retrograde cholangiography was performed with a standard videoduodenoscope Olympus TFJ 160-R (Olympus, Hamburg, Germany) and brush cytology with a Cook medical Double Lumen Biliary BrushTM (Cytology). Means and standard frequencies were used to calculate variables. Results: Positive results for malignancy were obtained in 22 of 88 patients (25%) by brush cytology and 31 of 44 patients (70.4 %) by brush cytology with negative pressure. Conclusions: Sensitivity of cytology sampling could be maximized by negative pressure during ERCP.

The Correlation Between Forward Head Posture Used McKenzie Exercise and Plantar Pressure (멕켄지 운동 적용에 따른 전방머리자세와 족저압의 상관관계)

  • Han, Ji-Hoon;Kim, Jung-Hyun;Jung, Min-Keun;Ju, Tae-seong;Jeon, Jae-guk
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.22 no.1
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    • pp.65-70
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    • 2016
  • Background: To determine the correlation Between forward head posture and plantar pressor in a McKenzie Exercise. Methods: This study had a cross-sectional design. There are included 20 participants with forward head posture. We measured the craniovertebral angle (CVA), cranial rotation angle (CRA) by image obtained digital camera and the plantar pressure, static balance using Gait Analyzer each before and after McKenzie Exercise. Results: There was negative correlation between CVA and CRA (p<.05). There was negative correlation between CVA and fore foot(p<.05). There was positive correlation between CRA and both fore foot (p<.05). There was negative correlation between CVA and static balance(p<.05). There was positive correlation between CRA and static balance (p<.05). Conclusions: There is a correlation between the change a mount of forward head position and plantar pressure in the McKenzie Exercise.

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Health Status of Women Caregivers and Negative and Positive Impacts of Family Caregiving (여성 가족부양자의 건강상태 및 가족부양의 부정적.긍정적인 영향)

  • 김진선
    • Journal of Korean Academy of Nursing
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    • v.30 no.3
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    • pp.632-646
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    • 2000
  • The purpose of this study was to examine the health status of the daughter and daughter- in-law caregivers who care for a cognitively and/or functionally impaired elderly, individual to identify factors that were related to reported health outcomes, and to investigate the negative and positive impacts of family caregiving. Data was collected from 120 daughter and daughter-in-law caregivers and care-recipients using face to face interviews. Most caregivers were daughters- in-law (77.5%) and most care-recipients were female (88.3%). Sixty-eight percent (n=81) of caregivers reported depressive symptomatology. General health also deteriorated by caregiving. Caregivers reported several negative impacts (difficulties): care-recipients' problematic behaviors, deterioration of their own health, pressure from social norms related to family caregiving in Korea, intrafamily conflict, and economic problems. Contrary to the popular belief, caregivers reported diverse positive impacts of family caregiving (68.3%): a sense of filial responsibilities, recognition from elderly, family members, relatives, and society, education for the children, and familial harmony. Higher depression score was predicted by lower family income, the presence of cognitive impairment of care-recipients, and higher level of social conflict of caregivers. Poor general health of caregivers was predicted by older caregivers' age, lower competing roles of caregivers, and poor emotional health. While not seeking to deny the negative aspects of family caregiving, it is also necessary to understand positive aspects of family caregiving to see complete picture of caring for an elderly family member.

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In vitro apical pressure created by 2 irrigation needles and a multisonic system in mandibular molars

  • Ronald Ordinola-Zapata;Joseph T. Crepps;Ana Arias;Fei Lin
    • Restorative Dentistry and Endodontics
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    • v.46 no.1
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    • pp.14.1-14.7
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    • 2021
  • Objectives: The aim of this study was to evaluate the apical pressure generated by 2 endodontic irrigation needles and the GentleWave system in mandibular molars. Materials and Methods: The mesial and distal root canals of 12 mandibular molars were irrigated with a 30-gauge close-end needle or with a 30-gauge open-end needle. Procedures were performed in the mesial and distal canals. The GentleWave procedure and irrigation at 1 mm from the apex in the distal roots using an open-end needle were used, respectively, as negative and positive controls. The apical pressure was measured using a data acquisition pressure setup. Apical pressure exerted by the different needles in the 2 different canal types was statistically compared using 2-way analysis of variance. Results: Significant differences were found in the apical pressure for both needles and the canal type. The lowest values were obtained with close-end needles and in mesial canals. Negative apical pressure values were obtained using GentleWave. Conclusions: The needle and the canal type influenced the apical pressure. The GentleWave procedure produced negative apical pressure.

The Effect on COVID-19 Infection Control Practice of Nurses who Work in Working Sites with Negative Pressure Isolation Rooms (음압격리병실이 있는 부서에서 근무하는 간호사의 코로나19 감염관리 수행에 영향을 미치는 요인)

  • Park, Min Ji;Lee, Yun Mi
    • Journal of Korean Critical Care Nursing
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    • v.15 no.1
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    • pp.35-46
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    • 2022
  • Purpose : This study aimed to identify the factors affecting coronavirus disease 2019 (COVID-19) infection control practices of nurses in negative pressure isolation rooms. Methods : The participants were 150 nurses working in three hospitals with negative pressure isolation rooms. Data were collected using structured questionnaires and analyzed using an independent t-test, one-way ANOVA, Scheffé test, Pearson correlation coefficients, and multiple regression analysis using the SPSS/WIN 26.0 program. Results : Factors significantly influencing the subject's COVID-19 infection control practice include Being married (𝛽=.18, p =.016), working in a ward with negative pressure isolation rooms (𝛽=.44, p <.001), working in an ICU with negative pressure isolation rooms (𝛽=.27, p =.010), COVID-19 infection control attitude (𝛽=.28, p =.001), anxiety for COVID-19 (𝛽=.30, p <.001). The explanatory power of these variables for COVID-19 infection control practice was 24.6% (F=8.67, p <.001). Conclusion : It is expected that strategies that utilize positive attitudes which believe that COVID-19 disease may be overcome by COVID-19 infection control practice will help improve emerging infectious diseases infection control practice.

A Study on Blood Pressure and Serum Biochemical Indices of Cerebrovascular Accident Patients in Korean Urban Adults (도시에 거주하는 뇌졸중 환자의 혈압과 혈청 생화학적 성분간의 상관성 연구)

  • 조은영;권종숙;송경희
    • Korean Journal of Community Nutrition
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    • v.4 no.1
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    • pp.57-63
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    • 1999
  • This study was done to investigate the blood pressure, BMI and serum lipids of cerebrovascular accident patients in Seoul. The subjects were 195 Korean urban cerebrovascular accident patients who were hospitalized at Dong Seo Oriental Hospital in Seoul from June, 1997 to December, 1997. There were more cerebral infarction patients(164) than cerebral hemorrhage patients(31). Cerebral infraction patients were prevalent for subjects in their sixties, but cerebral hemorrhage patients were most commonly in their fifties. The BMI of cerebral infarction accidents was significantly higher than that of cerebral hemorrhage patients(p<0.05). Mean diastolic blood pressure of cerebral hemorrhage patients was significantly higher than that of the cerebral infarction patients(p<0.05). The mean systolic blood pressure of the cerebral hemorrhage patients was higher than that of the cerebral infarction patients, not statistically significant. The serum total cholesterol and glucose levels of the cerebral infarction patients was significantly higher than those of the cerebral hemorrhage patients(p<0.05). Serum total cholesterol(p<0.01), triglyceride(p<0.05) and LDH(p<0.01) levels of female subjects were significantly higher than those of male subjects. Serum total cholesterol has a negative correlation with serum GOT and GPT, but has a positive correlation with triglyceride. Serum triglyceride has a negative correlation with diastolic blood pressure but has a positive compellation with serum glucose.

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