• Title/Summary/Keyword: statistical treatments

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The Nature of Hope among Iranian Cancer Patients

  • Afrooz, Rashed;Rahmani, Azad;Zamanzadeh, Vahid;Abdullahzadeh, Farahnaz;Azadi, Arman;Faghany, Safieh;Pirzadeh, Asgar
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.21
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    • pp.9307-9312
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    • 2014
  • Background: Hope is an important coping resource for cancer patients. Types and sources of hope and hope-inspiring strategies are not well investigated among Iranian cancer patients. The aims of present study were therefore to investigate the nature of hope and some demographic predictors of hope among Iranian cancer patients. Materials and Methods: This descriptive-correlational study was undertaken among 200 cancer patients admitted to an educational center affiliated to Ardabil University of Medical Sciences, Iran. Participants were selected using a convenience sampling method. The Herth Hope Index and other validated questionnaires were used to investigate level of hope and types and sources of hope, as well as hope-inspiring strategies. Data were analyzed using SPSS statistical software. Results: The overall score for hope was 31 from total scores ranging between 12 and 48. Some 94% of patients mentioned 'return to normal life' and 'complete healing of disease by drugs and physicians' as their main hopes. The most important sources of hope reported by patients include spiritual resources, family members, healthcare workers, and medicines and treatments available for the disease. Relationship with God, praying/blessing, controlling the signs and symptoms of the disease, and family/health care workers' support were the main hope-inspiring strategies. Patients who had a history of metastasis, or who were older, illiterate, divorced/widowed and lived with their children reported lower levels of hope. On the other hand, employed patients and those with good support from their families had higher levels of hope. Conclusions: The study findings showed moderate to high levels of hope among Iranian cancer patients. Accordingly, the role of spiritual/religion, family members and health care workers should be considered in developing care plans for these patients.

A Study on the Enhancement of Soil Fertility in the Reclaimed Land for Growing Tobacco (연초 재배를 위한 개간지 토양의 비옥도 증진에 관한 연구)

  • 정훈채;조성진
    • Journal of the Korean Society of Tobacco Science
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    • v.2 no.1
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    • pp.37-52
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    • 1980
  • Two-year experiment was conducted to investigate the effect of phosphorous, lime, increased compost, and/or boron application on the yield and quality of leaf tobacco growm in the results are summarized as follows; 1) Compared to the conventional treatment, plants grown in the treated plots in the second year showed much better growth and their yield components such as leaf area index and unit leaf weight were much greater. 2) At the end of first year crop, the pH and amount of exchangeable cations in the treated plots reached those in mature soil, but the amount of organic matter and of available phosphorous were still below those of the mature soil. Application of additional compost was more effective in enhancing soil fertility than was additional phosphorous application. 3) The yield of tobacco grown in the second year was 15-20% higher in the treated plots, compared to conventional plot, with high statistical significance. Though the quality of leaf tobacco was not significantly different among treatments, the increase of 3-7% was obtained in the treated plot. The highest total income(yield x price/kg) came from the plot treated with additional compost and phosphorous application (adjusted at 3% level on the basis of phosphorous absorption coefficient), which produced 34% more than the conventional plot.

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Effect of denture cleansers on surface hardness of resilient denture liners at various time intervals- an in vitro study

  • Pahuja, Rasleen Kaur;Garg, Sandeep;Bansal, Sanjay;Dang, Rajat Harvinder
    • The Journal of Advanced Prosthodontics
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    • v.5 no.3
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    • pp.270-277
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    • 2013
  • PURPOSE. This study was aimed to determine the effect of two chemically distinct denture cleansers and water on the surface hardness of acrylic and silicone based soft denture liners at various time intervals. MATERIALS AND METHODS. Two commonly used commercial resilient liner material were selected based on their chemical composition (silicone- and acrylic-based soft liners) for this investigation. 120 cylindrical specimens were made of $15mm{\times}10mm$ dimensions (according to ASTM: D-2240-64T) in a custom made metal mold. All specimens were stored in artificial saliva throughout the study. Forty specimens were cleansed daily in 0.5% sodium hypochlorite solution; forty were cleansed in sodium perborate and remaining forty specimens were daily rinsed in water. Testing was done at 1 week, 1 month, 3 months and 6 months for surface hardness using a Shore A Durometer. A mean of 3 reading for each sample was subjected to one-way ANOVA, Post Hoc test and pair-t test for statistical analysis. P values of less than 0.05 were taken as statistically significant. RESULTS. Surface hardness of all the samples was significantly higher after a period of 6 months irrespective of the cleansing treatment. Minor changes were observed between control, sodium hypochlorite and sodium perborate groups with time. Greater change was observed in surface hardness of acrylic-based soft denture liners as compared to silicone-based soft liners for all groups, as time progressed. CONCLUSION. Silicone-based soft denture liners performed significantly better in all cleansing treatments than acrylic-based soft denture liners.

In vitro shear bond strength between fluorinated zirconia ceramic and resin cements

  • Tanis, Merve Cakirbay;Akay, Canan;Akcaboy, Turgut Cihan;Sen, Murat;Kavakli, Pinar Akkas;Sapmaz, Kadriye
    • The Journal of Advanced Prosthodontics
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    • v.10 no.3
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    • pp.205-210
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    • 2018
  • PURPOSE. The purpose of this study was to evaluate the efficiency of a gas-phase fluorination method under different fluorination periods through using two resin cements. MATERIALS AND METHODS. 84 zirconia specimens in dimensions of $5mm{\times}5mm{\times}2mm$ were prepared and surface treated with $50{\mu}m$ aluminum oxide particles or gas phase fluorination for 2 min, 5 min, or 10 min. One specimen in each group was surface analyzed under scanning electron microscope. The remaining specimens were bonded to composite cylinders in dimensions of 2 mm diameter and 3 mm high with Panavia SA Plus or Variolink N. Then, the specimens were stored in $37^{\circ}C$ distilled water for 24 hours and shear bond strength test was applied at a speed of 1 mm/min. RESULTS. The highest shear bond strength values were observed in the samples fluorinated for 5 minutes and cemented with Panavia SA Plus. Variolink N did not elicit any statistical differences between surface treatments. Panavia SA Plus resin cement and Variolink N resin cements featured statistically significant difference in shear bond strength values only in the case of 5 minutes of fluorination treatment. CONCLUSION. According to the results of this study, application of 5 minutes of fluorination with 10-methacryloyloxydecyl dihydrogen phosphate monomer (MDP) containing Panavia SA Plus resin cement increased the resin bond strength of zirconia. Fluorination of the zirconia surface using conventional resin cement, Variolink N, did not lead to an increase in bond strength.

The Effects of Antioxidant Vitamins Via Comet and Mitogenic Assay in Mice Exposed to $AFB_1$ ($AFB_1$에 노출된 마우스에서 Comet Assay와 Mitogenic Assay에 의한 항산화 비타민의 효과)

  • Park, Seon-Ja
    • Journal of Korean Biological Nursing Science
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    • v.3 no.2
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    • pp.21-33
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    • 2001
  • The objective of this study was to examine the effects of antioxidant vitamins on the cellular oxidant damage by observing the mitogenicity in the mouse spleen and the strand breaks of DNA in mouse blood induced by $AFB_2$. Intraperitoneal(i.p.) injections of vitamin C(VC) of 10 mg/kg and vitamin E(VE) of 63.8 mg/kg were repeatedly administered to male ICR mice of 6 weeks old at intervals of 4 times every 2 days. After one hour vitamin treatments, $AFB_1$ of 0.4 mg/kg was injected into the $AFB_2$ plus vitamin treated groups in the same way. On the other hands, into the $AFB_2$ only treated group, only $AFB_2$ was injected without vitamins in the same method as above. The results of the experiment are as follows ; as regard to comet assay, DNA strand breaks were clearly present and they formatted a typical comet tail in the mice blood of the $AFB_2$ only treated groups. However, comet tails apparently disappeared in $AFB_2$ plus antioxidant vitamins treated groups since oxidant damage was controlled in an almost similar level to the control group. Mitogenicity of the spleen also showed a similar tendency as before, and these differences were more remarkably observed in the reaction against Con-A, which is a T-cell mitogen. In these data, the statistical significance was p<0.01. The LDL and VLDL levels were 408.72, 504.47 mg/dl respectively in the $AFB_2$ only treated groups. Compared with the $AFB_1$ only treated groups, those of $AFB_2$ plus antioxidant vitamin treated groups decreased to 272.06(VC), 305.28 mg/dl(VE), respectively. On the other hand, HDL levels were diminished to 32.60, 29.60 mg/dl in $AFB_2$ only treated groups, compared to 42.23, 41.14 mg/dl in the $AFB_2$ plus antioxidant vitamins treated groups. But, blood glucose levels were not statistically significant.

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Clinico-statistical Analysis of Cooperation and Anesthetic Induction Method of Dental Patients with Special Needs (장애인 환자의 치과치료를 위한 전신마취 시 협조도와 마취 유도 방법에 대한 통계적 고찰)

  • Seo, Kwang-Suk;Shin, Teo-Jeon;Kim, Hyun-Jeong;Han, Hee-Jeong;Han, Jin-Hee;Kim, Hye-Jung;Chang, Ju-Hea
    • Journal of The Korean Dental Society of Anesthesiology
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    • v.9 no.1
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    • pp.9-16
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    • 2009
  • Background: This study aimed to evaluate the cooperative levels of dental patients requiring general anesthesia during dental treatments. Anesthetic induction methods for patients were also recorded and analyzed using descriptive statistics. Methods: Total 566 patients who visited Seoul National University Dental Hospital Clinic for Persons with Disabilities were reviewed on pre-anesthetic review and anesthesia records. The cooperative levels of patients were graded by 4 levels and induction methods used for the patients during general anesthesia application were analyzed. Results: More than half of patients(55.8%) were willing to receive the anesthetic induction(cooperative level 1), 18.6% were minimally cooperative(level 2), 20.8% needed physical restraint prior to induction(level 3), and 4.8% was poorly cooperative and induction procedure was performed under an unconscious condition after ketamine intramuscular injection(level 4). There was no gender difference in cooperative levels(P=0.11). Patients over 30 years revealed better cooperation levels compared to other age groups(P<0.05). For patients of level 1, 53.5% were anesthetized in a way of intravenous induction, while 77.1% out of patients of level 3 were anesthetically induced through inhalation method. Conclusion: Many dental patients with special needs were not cooperative to receive anesthetic induction. Additional behavioral support may be applied to poorly cooperative patients for the safe and successful clinical outcome.

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Outcome of Nonoperative Treatment for Proximal Plantar Fasciitis: Comparative Analysis According to Plantar Fascia Thickness (근위 족저 근막염의 비수술적 치료 결과 : 족저 근막 두께에 따른 비교 분석)

  • Yoon, Kwang-Sup;Jung, Hong-Geun;Bae, Eui-Jung;Kim, Tae-Hoon
    • Journal of Korean Foot and Ankle Society
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    • v.12 no.2
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    • pp.122-127
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    • 2008
  • Purpose: To evaluate the clinical outcome of proximal plantar fasciitis after nonoperative treatment, and also to find the correlation of the heel pain with the plantar fascia thickness measured by ultrasonography. Materials and Methods: The study is based on 41 patients, 46 feet of the proximal plantar fasciitis that were treated conservatively with at least 12 months follow-up. All were treated with heel pad, Achilles and plantar fascia stretching and pain medications for at least 3 months. Heel ultrasonography was performed at the beginning of the treatment to measure the plantar fascia (PF) thickness and the echogenicity. PF thickness over 4 mm and less were grouped in to group A and B respectively to compare the clinical outcome. Results: Average thickness of the PF at the calcaneal attach was 5.2 mm. Symptom duration before the treatment was average 13.2 month; group A being 14.6 months and group B being 9.0 months with no significant difference (p=0.09). As functional evaluation, Roles-Maudsley score improved from 3.4 initially to 2.3 at final follow-up, while morning heel pain also improved from average VAS pain score of 7.2 to 4.0. However Maudsley and VAS score both didn't show statistical difference between the 2 groups (p>0.05). Conclusion: Plantar fasciitis improved substantially with the nonoperative treatments. However, the 2 groups, divided according to 4 mm thickness by ultrasonography, didn't show significant difference in either symptom duration or in the clinical outcomes.

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The effect of dentin desensitizers and Nd:YAG laser pre-treatment on microtensile bond strength of self-adhesive resin cement to dentin

  • Acar, Ozlem;Tuncer, Duygu;Yuzugullu, Bulem;Celik, Cigdem
    • The Journal of Advanced Prosthodontics
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    • v.6 no.2
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    • pp.88-95
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    • 2014
  • PURPOSE. The purpose of this study is to evaluate if pre-treatment with desensitizers have a negative effect on microtensile bond strength before cementing a restoration using recently introduced self-adhesive resin cement to dentin. MATERIALS AND METHODS. Thirty-five human molars' occlusal surfaces were ground to expose dentin; and were randomly grouped as (n=5); 1) Gluma-(Glutaraldehyde/HEMA) 2) Aqua-Prep F-(Fluoride), 3) Bisblock-(Oxalate), 4) Cervitec Plus-(Clorhexidine), 5) Smart protect-(Triclosan), 6) Nd:YAG laser, 7) No treatment (control). After applying the selected agent, RelyX U200 self-adhesive resin cement was used to bond composite resin blocks to dentin. All groups were subjected to thermocycling for 1000 cycles between $5-55^{\circ}C$. Each bonded specimen was sectioned to microbars ($6mm{\times}1mm{\times}1mm$) (n=20). Specimens were submitted to microtensile bond strength test at a crosshead speed of 0.5 mm/min. Kolmogorov-Smirnov, Levene's test, Kruskal-Wallis One-way Analysis of Variance, and Conover's nonparametric statistical analysis were used (P<.05). RESULTS. Gluma, Smart Protect and Nd:YAG laser treatments showed comparable microtensile bond strengths compared with the control group (P>.05). The microtensile bond strengths of Aqua-Prep F, and Cervitec Plus were similar to each other but significantly lower than the control group (P<.05). Bisblock showed the lowest microtensile bond strength among all groups (P<.001). Most groups showed adhesive failure. CONCLUSION. Within the limitation of this study, it is not recommended to use Aqua-prep F, Cervitec Plus and Bisblock on dentin when used with a self-adhesive resin cement due to the decrease they cause in bond strength. Beside, pre-treatment of dentin with Gluma, Smart protect, and Nd:YAG laser do not have a negative effect.

Effects of Hormones on the Proliferation of Stromal Vascular Cells from Hanwoo Cattle Adipose Tissues

  • Lee, S.C.;Lee, H.J.;Kim, D.W.;Kim, J.W.;Han, In K.
    • Asian-Australasian Journal of Animal Sciences
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    • v.13 no.2
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    • pp.161-166
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    • 2000
  • This study was designed to determine the effects of the insulin-like growth factor (IGF-1) and estradiol $17-{\beta}$ on the in vitro proliferation of stromal vascular cell from Hanwoo omental, subcutaneous, intermuscular and intramuscular adipose tissues. Cells were cultured in M199+20% newborn calf serum and the proliferation of cells was measured by direct microscopic cell counting and change of genomic DNA amount. Cell numbers increased slightly over the first 72 hour of culture and then increased greatly, regardless of adipose tissue depots. In IGF-1 treatment, the number of omental preadipocytes maintained highest level from the beginning to the 20th day of culture. However, in estradiol-$17{\beta}$ treatment, those tended to be lower than the control from the beginning of culture and significantly lower at the 24th day. When IGF-1 was added to subcutaneous preadipocytes, the numbers of cells were higher from 11th day than those from other treatments, although there was no statistical significance. For intermuscular preadipocytes treated with IGF-1, its numbers were significantly (p<0.05) higher at 11th day, and in the other days it showed a similar tendency to those of the subcutaneous tissue. In this experiment, preadipocytes were taken from 24 month old fully matured steers and the highest proliferation rate was shown in intramuscular tissue followed by those of subcutaneous preadipocytes. Addition of $5{\mu}M$ estradiol-$17{\beta}$ to the growth medium failed to promote the replication of Hanwoo preadipocytes, as indicated by direct cell counts and total genomic DNA content. As the culture period proceeded, the amounts of DNA were increased, but the patterns of increment were not consistent with the results of cell numbers.

Change of Brain Activation due to Change of Viewpoint in Action during Action Observation: an EEG Analysis Study (동작관찰 중 동작 수행 시 시점의 변화에 따른 뇌 활성의 변화)

  • Kim, Oi-Jin;Sim, Ji-Young;Lee, Se-Young;Jin, Hyun-Jin
    • PNF and Movement
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    • v.14 no.3
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    • pp.209-217
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    • 2016
  • Purpose: Treatments using a mirror neuron system, such as 3D virtual reality therapy, are used in stroke rehabilitation, but they need to be constructed according to a detailed procedure. The aims of this study were to analyze electroencephalograms (EEG) during relaxation and action while observing first person perspective (1AE) and third person perspective (3AE) videos of the right hand for 20's. Methods: Thirty participants (Male=4, Female=26) were recruited for this study. Participants were selected by a vividness of movement imagery questionnaire (VMIQ). EEG was measured during relaxxation and during action with 1AE and 3AE videos, focusing on the supination and pronation actions of participants' right hands. An absolute mu rhythm, a relatively high alpha power, and a relative beta power were identified. In each group, one-way repeated measures ANOVA was used for statistical analysis. Results: Measurement of absolute mu rhythms was significantly suppressed for both 1AE and 3AE compared with relaxation in C3 and C4 regions. High alpha wave measurements were significantly suppressed for both 1AE and 3AE in all regions, while beta wave measurements were significantly increased only for 3AE in F3 and F4 regions. Conclusion: Based on this study, we suggest that the mirror neuron system is activated during actions accompanied by action observation, especially actions with 3AE video observation, which can be a great therapeutic mathod in stroke rehabilitation.