• Title/Summary/Keyword: statistical treatments

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Comparative analysis of proximal humerus fracture management in elderly patients: complications of open reduction and internal fixation by shoulder surgeons and non-shoulder surgeons-a retrospective study

  • Rui Claro;Bianca Barros;Carlos Ferreira;Ana Ribau;Luis Henrique Barros
    • Clinics in Shoulder and Elbow
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    • v.27 no.1
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    • pp.32-38
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    • 2024
  • Background: Open reduction and internal fixation (ORIF) with a locking plate is a popular surgical treatment for proximal humeral fractures (PHF). This study aimed to assess the occurrence of complications in elderly patients with PHF treated surgically using ORIF with a locking plate and to investigate the potential differences between patients treated by shoulder surgeons and non-shoulder surgeons. Methods: A retrospective study was conducted using a single-center database to identify patients aged ≥70 years who underwent ORIF for PHF between January 1, 2011, and December 31, 2021. Data on the Neer classification, follow-up, occurrence of avascular necrosis of the humeral head, implant failure, and revision surgery were also collected. Statistical analyses were performed to calculate the overall frequency of complications according to the Neer classification. Results: The rates of implant failure, avascular osteonecrosis, and revision surgery were 15.7%, 4.8%, and 15.7%, respectively. Complications were more common in patients with Neer three- and four-part fractures. Although the difference between surgeries performed by shoulder surgeons and non-shoulder surgeons did not reach statistical significance, the rate of complications and the need for revision surgery were nearly two-fold higher in the latter group. Conclusions: PHF are highly prevalent in the elderly population. However, the ORIF surgical approach, as demonstrated in this study, is associated with a considerable rate of complications. Surgeries performed by non-shoulder surgeons had a higher rate of complications and a more frequent need for revision surgery. Future studies comparing surgical treatments and their respective complication rates are crucial to determine the optimal therapeutic options. Level of evidence: III.

The Effect of Polypropylene Mulching Method on Growth of Quercus glauca Thunb. Seedling and Weed Treatments (부직포 멀칭 방식에 따른 종가시나무 묘목의 생장과 제초에 미치는 영향)

  • Sung, Chang-Hyun;Yoon, Jun-Hyuck;Jin, Eon-Ju;Bae, Eun-Ji
    • Journal of the Korean Institute of Landscape Architecture
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    • v.48 no.5
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    • pp.59-66
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    • 2020
  • Recently, cultivation and management technologies have been needed to adapt due to climate change, which is causing abnormal weather conditions. One technique is to increase the utilization of evergreen broad-leaved species with high ornamental value. A total of five treatments were installed (1m×22.5m), including 60g/㎡ and 80g/㎡ using two types mulching material with an overlapping and hole-drilling mulching method and these were compared to un-mulching treatment a total of planted 92㎡ attheWol-aTestSiteForestattheForestforBiomaterialsResearchCenterinJinju-si, Gyeongsangnam-dofor 10monthsusing3-years-oldQuercusglaucaThunb. In comparison with the control site, the 60g/㎡ overlapping method was about 1.9 times higher than the root collar diameter, but there was no statistical significance between the treatments. Healthy seedlings were found to meet these conditions due to high biomass values and below and T/R ratios of 3.0 or lower and H/D ratios of 7.0 or lower. Comparing the values of LWR, SWR, and RWR, which can be evaluated for seedling due to the mulching treatments, as compared to the control, the growth of the ground areas including leaves and stems was enhanced, but the growth of the underground areas containing roots tended to have high control values. Based on this, the SQI value, which can be evaluated for the comprehensive quality of seedlings, was found to be significantly different between the control site and the mulching treatment sites, confirming that the growth and growth improvement effects were achieved with mulching treatments. The chlorophyll content analysis showed that there was a significant difference from the control site, and it was judged that weed generation in the control acted as an environmental stress, causing a decrease in chlorophyll content. It was found that the overlapping 80g/㎡ of polypropylene mulching material generated about 4 times fewer weeds than the control, and the manpower required for the mulching test field and weeding were equal at 3.3 people/100㎡/1 day. Mulching treatments have demonstrated a significant difference in the promotion of growth and quality of the seedlings and are judged as an alternative that can reduce the economic burden incurred by the purchase of the supplies and the manpower required to weed forestry plantations.

Effects of Dietary Wormwood (Artemisia montana Pampan) Powder Supplementation on Growing Performance and Fecal Noxious Gas Emission in Weanling Pig (쑥분말 급여가 이유자돈의 생산성과 분의 유해가스 발생량에 미치는 영향)

  • Kim, Y M.;Kim, J.H.;Kim, S.C.;Lee, M.D.;Sin, J.H.;Ko, Y.D.
    • Journal of Animal Science and Technology
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    • v.45 no.4
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    • pp.551-558
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    • 2003
  • This study was conducted to investigate the effect of dietary wormwood powder (Artemisia montana Pampan; WP) supplementation on growing performance and fecal noxious gas emission in weanling pigs. One hundred and twelve pigs were alloted into four treatments and offered for 4 weeks one of the diets supplemented with 0% (control), 0.5% (0.5), 1.0% (1.0) and 2.0% (2.0) WP. Each treatments has four replicate with 7 pigs per replicate. ADG, ADFI and F/G were improved by 1.0 and 2.0 WP supplementation during 0d${\sim}$14d feeding. Feed intake of 1.0 WP diet was higher (P<0.05) than any other diet during 15d${\sim}$28d feeding. But there were no differences among the other treatments in the weight gain and feed conversion. During the whole feeding period, daily weight gain and feed intake of pigs fed 1.0 and 2.0 treatments were higher than those of pigs fed control and 0.5 diet. DM digestibility was significantly (P<0.05) higher in weanling pigs fed 0.5, 1.0 and 2.0 WP than that of the control. The protein digestibility was significantly improved in 1.0 WP treatment and the phosphorus digestibility was improved in 2.0 WP treatment. Excretion of nitrogen and phosphorus was significantly (P<0.05) decreased by 2.0 treatment than control. Emission of fecal ammonia after 48 hours storage in vinyl bag dramatically decreased by all the treatments except control. However, there was no statistical difference in fecal hydrogen sulfide emission among treatments. In conclusion, this study suggested that the dietary 1.0${\sim}$2.0 supplementation of WP can improve productivity of pigs decrease fecal $NH_3$ and $H_2S$ gas emission.

Effects of dietary Alisma canaliculatum(Alismatis rhizoma), Viscum album (Mistletoe) and Cornus officinalis (Corni fructus) probiotics as feed additives on growth performance and immunity in growing pigs (사료내 택사, 겨우살이 및 산수유 생균제 첨가가 비육돈의 생산성 및 면역성에 미치는 영향)

  • Kim, Ki-Soo;Kim, Gwi-Man;Ji, Hoon;Park, Sung-Wook;Yang, Jeong-Seung;Yang, Chul-Ju
    • Korean Journal of Veterinary Service
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    • v.33 no.4
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    • pp.375-385
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    • 2010
  • An investigation was conducted to evaluate the effects of supplementing Alisma canaliculatum, Viscum album and Cornus officinalis probiotics on the growth performance and immune response in growing pigs. This experiment was conducted using 120 pigs (crossing of Landrace${\times}$Yorkshire and castrated) which were assigned to 5 treatments in 3 replications with 8 pigs per replications. The dietary treatments were NC group (without antibiotics), PC group (basal+Oxytetracycline 50ppm), AC group (basal+A. canaliculatum 0.5%), VA group (basal+V. album 0.5%) and COP group (basal+C. officinalis probiotics 0.5%). The initial body weights of pigs were 35kg on average and the experiment lasted for 9 weeks. The experimental animals were kept in the pens following a completely randomized design. They were provided the diets adequate for grower stage as recommended by NRC (ME:3,265 kcal/kg and CP:16%). COP fed pigs showed lower weight gain up to 6 weeks of age compared to NC group and other groups without significant differences (P>0.05). The carcass weights of pigs fed VA and COP were significantly higher compared to NC group (P<0.05), Back fat thicknesses groups fed three different additives were higher than NC group and lower then PC group (P<0.05). Crude fat contents in loin meat were significantly lower in groups fed three different additives while moisture contents of those three groups were higher than other groups (P<0.05). The thiobarbituric acid reaction substance (TBARS) value measured at fresh and $2^{nd}$ weeks was lower in additives fed groups but no statistical differences were observed among the treatments (P>0.05). Significantly highest PUFA (16.42g/100g) and ${\omega}$-3 fatty acids (ALA, EPA and DHA) content of meat were observed in COP fed pigs compared to NC group (P>0.05), which might mean that three additives function to enhance serum IgG in pigs. In consequence, it can be suggested that AC, VA and COP may have a potential to replace antibiotics as growth promoter and immune enhancer in the diets for growing pigs.

Effects of Dicarboxylic Acid as an Alternative to Antibiotic on in vitro Rumen Parameters, Milk yield and Milk Compositions in Lactating Cows (항생제 대체제로서 Dicarboxylic Acid 급여가 in vitro 반추위 발효성상, 착유우의 유량 및 유성분에 미치는 영향)

  • Nam, In-Sik;Ahn, Yong-Dae;Jeong, Ki-Hwan;Ahn, Jong-Ho
    • Korean Journal of Organic Agriculture
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    • v.24 no.3
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    • pp.453-463
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    • 2016
  • This study was undertaken to investigate the effects of dicarboxylic acid supplementation, as replacement antibiotics, of on in vitro ruminal parameters and milk yield and milk composition in lactating cows. in vitro treatments were 1) Con (4 g of basal diet), 2) CM (4 g of basal diet + 0.05 ml of monensin), 3) CR (4 g of basal diet + 0.1 ml of dicarboxylic acid) and in vivo treatments were 1) Con (25 kg of basal diet/head/day), and 2) CR (25 kg of basal diet + 5 g of dicarboxylic acid/head/day), respectively. A total 10 lactating dairy cows ($649{\pm}19kg$ average body weight, $99{\pm}65$ average milking days) were divided in to two groups according to mean milk yield and number of days of postpartum. The cows fed a basal diet during adaptation (2 wk) and experimental diets during the treatment periods (4 wk). In the first in vitro experiment, there were no statistical differences between treatments in pH, gas production, and ammonia-N and lactic acid concentration during incubation. However, dry matter digestibility was significantly higher in CR treatment compared to control or CM treatment (P<0.05). Total VFA was tended to higher in CR treatment than those of control and CM treatment (P>0.05). In the second experiment, milk yield was significantly higher in treatment (40.39 kg) compared to control (35.19 kg), (P<0.05). Milk composition and MUN were not changed by dietary supplementing dicarboxylic acid. Therefore the present results reporting that supplementation of dicarboxylic acid might enhance the stabilization of ruminal fermentation and increase the milk yield of lactating cows.

Analysis of Effects of Yoga and Music Therapies on the Care of Alcohol dependents (알코올 의존자에 대한 요가 및 음악 치료의 효과 분석)

  • Cho, Hyun;Heo, Eun-Seung;Lee, Ji-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.6
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    • pp.2144-2151
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    • 2010
  • Yoga meditation and music therapy are considered to be appropriate for the spiritual and mental treatment for the patients and employed in many clinics and rehabilitation centers as an alternative medicine. This study aims at the analysis of the effects of yoga and music on the treatment of alcoholism. For this, yoga and music treatments were executed for the patients hospitalized in an alcohol clinic hospital in Gimhae district. Only the patients who were judged as alcohol dependents by a psychiatrist with a diagnostic criteria of DSM-IV participated in the study. During five weeks, from November 10, 2009 to December 29, yoga program was practiced two times per week, totaling 10 times, and music therapy was practiced one time per week, totaling 5 times. Among the patients participated in the programs, 44patients were selected finally. They are 16 patients who performed all the yoga programs, and 28 patients who fulfilled all the music therapies. A survey was conducted on them to estimate the effects of yoga and music treatments for the three cases of 'angry behavior', 'anger expression', and 'psychological state at interview'. The results show that yoga and music treatments have positive effects on the patients, although the statistical significance is not so great. However, the more reliable and significant results could be obtained in further studies by prolongation of the practice period, and by introducing the clinical information such as brain mapping to compensate the emotional bias of the patients.

Effects of Integrative Korean Medical Treatment for a Failed Epidural Steroid Injections to L-spine Disk Herniation: A Retrospective Case Series (경막외 스테로이드 주사치료에 실패 후 한방복합치료에 의해 호전된 요추 추간판 탈출증 환자 10례 : 후향적 증례 연구)

  • Kim, Ji Su;Kim, Yoo Jong;Hong, Je Rak;Kim, Min Chul;Park, Han Sol;Kim, Seh Young;Seo, Young Woo;Lee, Sang Min;Seo, Young Hoon;Kim, Ki Ok;Kim, Tae Hun
    • Journal of Acupuncture Research
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    • v.32 no.4
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    • pp.203-211
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    • 2015
  • Objectives : The purpose of this study was to assess the effectiveness of integrative Korean Medical treatments for patients with L-spine disk herniation that showed no response to Epidural Steroid Injections (ESI). Methods : In this study, we reviewed the medical records of ten patients who showed no improvement or relapsed after ESI. The patients each received more than three weeks of integrative treatments at Mokhuri Neck&Back Hospital. The Visual Analog Scale (VAS) and Oswestry Disability Index (ODI) was measured before and after treatment. A statistical analysis to compare before and after treatments was assessed using paired t-test the SPSS 12.0 Windows program. Results : After three weeks of treatment, patients showed a significant decrease in VAS and ODI scores compared to before receiving treatment. VAS scores decreased from $5.3{\pm}1.25$ to $1.9{\pm}0.99$ (p<0.001), and ODI scores decreased from $59.8{\pm}22.2$ to $32.7{\pm}14.11$ (p<0.001). Conclusions : Complex Korean Medical treatment showed effectiveness in the treatment of L-spine HIVD patients that showed no response to ESI, and more objective research is needed.

A STUDY OF SHEAR BOND STRENGTH AND SURFACE CONDITION BETWEEN SURFACE TREATED PORCELAIN AND RESIN CEMENT (도재의 표면처리에 따른 레진시멘트와의 전단결합강도 및 표면상태에 관한 연구)

  • Park, Sang-Hyuck;Park, Sang-Jin
    • Restorative Dentistry and Endodontics
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    • v.22 no.1
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    • pp.144-155
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    • 1997
  • This study evaluated shear bond strength between porcelain and resin cement according to various surface treatments of porcelain, and surface condition of debonded porcelain. 50 porcelain specimens(Celay block A2M7) and composite resin specimens(Clearfil Photo-Bright) were prepared, and divided into 5 experimental groups according to the treatment method of porcelain surface. 5 experimental groups by surface treatments were as follows; CONTROL Group : No surface treatment was done on the surface of porcelains. SAND Group : The surface of porcelains were sandblasted with $50{\mu}m$ aluminum oxide for 5 seconds. HF Group: The surface of porcelains were etched with 8% Hydrofluoric acid for 4 minutes. SIL Group: The surface of porcelains were coated with silane coupling agent and heated at $100^{\circ}C$ for 5 minutes. SAND+HF+SIL Group : The surface of porcelains were sandblasted with $50{\mu}m$ aluminum oxide for 5 seconds and etched with 8% Hydrofluoric acid for 4 minutes, and coated with silane coupling agent and heated at $100^{\circ}C$ for 5 minutes. After surface treatments on the prepared porcelain surface two pastes of Panavia 21$^{(R)}$ were mixed, they were applied between composite resin block and porcelain surface, and then excessive resin cements were removed, and its margin was surrounded with Oxyguard II. All specimens were stored for 24 hours in water at $37^{\circ}C$ and tested with Instron testing machine between porcelains and resin cements, and debonded porcelain surfaces were observed under Scanning Electon Microscope(Hitachi S-2300) at 20kvp. The values from each group were compared statistically by Student's t-test. The obtained results were as follows; 1. The shear bond strength without surface treatment of porcelain was the lowest among all experimental groups(p<0.05). 2. The detached porcelain surface with sandblasting alone had more remarkable cracks than with only Hydrofluoric Acid or Silane coupling 2gent, but showed the lowest value of shear bond strength among surface treated groups(p<0.05), 3. When porcelain surface was treated by hydrofluoric acid, it affected shear bond strength more than silane coupling agent, but there were no significant statistical differences(p>0.05). 4. When three methods were combined to increase shear bond strength between porcelains and resin cements, its value was the highest than the others(p<0.05). 5. In Scannig Electron Micrograph of detached porcelain surface with no treatment, the sample revealed adhesive failure between the porcelain and resin cement whereas detached porcelain surface with combination of three method cohesive failure on the porcelain.

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A Study on Pulping Process Condition through Design of Experiments (실험계획법을 이용한 고지 해리 공정조건에 관한 연구)

  • Kim, Sung-Kwon;Lee, Joon-Koo;Sung, Dae-Hyung
    • Applied Chemistry for Engineering
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    • v.9 no.4
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    • pp.529-535
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    • 1998
  • This study was made to investigate the effect of variation in pulping process conditions such as wastepaper blending treatments, temperature, and chemical blending treatments on the deinked pulp. Design of experiments was used to select the major factors which significantly influenced on the deinked pulp. As one of the statistical analysis technique, analysis of variance and multiple comparison technique was used to find the best process condition and the predicted values and confidence intervals for brightness and strength were obtained. In the condition of $Na_2SiO_3$ 2.0%, $H_2O_2$ 0.5% and wastepaper blending treatments (KONP : AONP : OMG = 40 : 30 : 30 wt %) the highest brightness of 50.5% was predicted with 90% confidence interval (49.0, 52.0). On a concentration of $H_2O_2$ 0.5%, the highest tensile index of $35.7N{\cdot}m/g$ was predicted with 90% confidence interval (34.6, 36.6) at the pulping temperature of $50^{\circ}C$. On a concentration of surfactant 0.1%, the highest burst index of $0.129kPa{\cdot}m^2/g$ was predicted with 90% confidence interval (0.125, 0.133) at the pulping temperature of $50^{\circ}C$.

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Effect of environmental enrichment for piglets in the nursery phase

  • Padilha-Boaretto, Joselaine Bortolanza;Groff-Urayama, Priscila Michelin;Einsfeld, Suelen Maria;de Souza, Cleverson;Mendes, Angelica Signor;Maeda, Emilyn Midori;Takahashi, Sabrina Endo
    • Animal Bioscience
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    • v.34 no.1
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    • pp.154-160
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    • 2021
  • Objective: The effect of environmental enrichment on the behaviour of piglets in the nursery phase was evaluated. Methods: A total of 450 hybrid pigs (21 day old), including both females and uncastrated males, weighing approximately 6 kg, were distributed in a completely randomised design with 3 treatments and 3 replicates of 50 animals each. The treatments were: i) pen without environmental enrichment (control), ii) treatment consisting of continuous environmental enrichment (CEE) with rubber balls throughout the experimental period, and iii) treatment consisting of environmental enrichment with washed balls (EEWB) during the whole experimental period which were removed daily for washing. For the behavioural evaluation, 10 animals were randomly selected per replicate. The behavioural assessments were performed once a week, from 8 am to 6 pm, using images captured with a video camera. The data were submitted to non-parametric analyses, the means were compared using the Bonferroni test, and Person's correlations were also calculated. Results: A statistical difference (p = 0.001) was observed in the B5 (playful) behaviour; the animals in the EEWB treatment group had a higher frequency of this behaviour than animals in the control treatment group. The animals in the control group showed a higher frequency of B7 behaviour (lying down) (p = 0.026) than those in the EEWB and CEE treatment groups. The animals in the control group had a higher frequency of the B9 (belly nosing) behaviour than those in the EEWB group (p = 0.015). There was a tendency towards a higher frequency of behaviour B3 (walking in the pen) (p = 0.067) when the animals received the control treatment than treatments EEWB or CEE. Conclusion: The use of an enriching object improved the animal welfare and altered the correlation between the evaluated behaviours compared to the animals that did not have environmental enrichment.