• Journal of Dental Rehabilitation and Applied Science
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• v.28 no.2
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• pp.119-126
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• 2012

State of problem: Cement-retained implant-supported prostheses are routinely used in dentistry. The use of high strength cements has become more popular with the increasing confidence in the stability of the implant-abutment screw connection and the high survival rates of osseointegrated implants. No clinical data on retention of metal copings using CAD/CAM. To evaluate retention of metal copings using CAD/CAM system bonded to short titanium abutment with four different cements and compare retentive strength of metal copings with sandblasting or without sandblasting before cementation. Forty titanium abutment blocks were fabricated and divided into 4 groups of 10 samples each. Forty metal copings with occlusal hole to allow for retention testing were fabricated using CAD/CAM technology. The four cements were Fujicem(Fuji, Japan), Maxcem Elite(Kerr, USA), Panavia F2.0(Kurarary, Japan) and Superbond C&B(Sunmedical, Japan). The copings were cemented on the titanium abutment according to manufacture's recommendation. All samples were stored for 24h at 37oC in 100% humidity and tested for retention using universal testing machine(Instron) at a crosshead speed of 1.0mm/min. Force at retentive failure was recorded in Newton. The mode of failure was also recorded. Means and standard deviations of loads at failure were analyzed using ANOVA and Paired t-test. Statistical significance was set at P<0.05. Panavia F2.0 provided significantly higher retentive strength than Fujicem, Maxcem Elite(P<0.05). Sandblasting significantly increased bond strength(P<0.05). The mode of failure was cement remaining principally on metal copings. Within the limitation of this study, Panavia F2.0 showed significantly stronger retentive strength than Fujicem, Maxcem Elite(p<0.05). The Ranking order of the cements to retain the copings was Panavia F2.0, Fujicem = Maxcem Elite. Sandblasting significantly increased bond strength(P<0.05). The retentive strength of metal copings on implant abutment were influenced by surface roughness and type of cements.

• Asian-Australasian Journal of Animal Sciences
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• v.9 no.6
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• pp.727-735
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• 1996

The effects of four factors-two dietary protein levels (12 and 16%), feeding methods(ad libitum and restricted), strains (A and B), and age of hens-on egg quality and laying performance were examined. Use of the 12% dietary protein level resulted in significantly lower (p < 0.05) hen-day egg production, higher feed intake to about 85% of the ad libitum intake decreased mean hen-day production. Significant feeding method-by-age interactions ($F{\times}A$) were obtained for all parameters. Restricted feeding had favorable effects on shell strength and Haugh unit values after 28 and 16 weeks of egg production, respectively. There was significant difference in shell strength between the two strain. Examination of the three-factor interaction among protein levels, feeding method and strain ($P{\times}F{\times}S$) disclosed that the favorable effect of the A strain on shell strength was significant only with the 16% protein-restricted fed group. The other treatment group did show a trend for greater shell strength of the A strain. Mean values for all the parameters examined changed significantly (p < 0.01) with the age of hens. Feed intake per dozen eggs tended to increase, with some fluctuation, as the hens aged. There was a linear decrease in Haugh unit scores and shell strength. The effect of restricted feeding on either shell strength or Haugh unit scores were favorable for the aged chickens.

• Journal of the Korean Society of Safety
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• v.35 no.4
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• pp.32-39
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• 2020

The fire compartments with fire-resistant construction are installed in the principal structural parts of a building in order to reduce damage in the event of a building fire. As a fire may spread through a crack in the fire compartment, the firestop with secured performance is used according to the procedure, methods, and standards specified in the detailed operation guideline. According to the current detailed operation guideline, vertical members (wall penetration) and horizontal members (floor penetration) are classified into different categories respective to each other for the classification of the firestop. Therefore, an accreditation applicant must apply for the performance test for each structure even if the wall and the floor have the same structure. Also, Grade T is used for the firestop that penetrates the fire compartment. However, in the case of foreign countries, the use of Grade F for the firestop is allowed even if it penetrates the fire compartment. The result of the precedent studies also showed that there was a significantly low possibility of fire to spread even if Grade F was applied for a metallic duct that penetrated the fire compartment. In this study, the improved scheme for the classification and performance standard of firestops was presented by analyzing the results of precedent studies regarding the firestop and domestic and overseas firestop qualification systems.

• Korean Journal of Environment and Ecology
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• v.7 no.2
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• pp.135-154
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• 1994

To investigate the forest structure in valley of Kumpotan-Paekryunsa of Tokyusan National Park, fourty plots were set up and surveyed. According to the analysis of classification by TWINSPAN, community divided by 8 groups. The divided groups are Carpinus laxiflora-C. cordata community(I), Pinus densiflora-C. laxiflora-Quercus serrata community(II), C. laxiflora community(III), Q. mongolica-C. laxiflora community(IV), Q. spp. community(V, Ⅵ), and Fraxinus mandshurica community(Ⅶ, Ⅷ). In the analysis of ordination techniques, DBH distribution, environmental variables etc., community Ⅶ and Ⅷ were pointed out edaphic climax. So the successional trends seems to be from P. densiflora through Q. mongolica, Q. serrata to C. laxiflora, C. cordata, F. mandshurica in canopy layer. And in the subtree and shrub layer, it was expected that Rhododendron mucronulatum, Rh. schlippenbachii, Rhus trichocarpalongrightarrowAcer pseudo-sieboldianum, Lespedeza maximowiczii, Euonymus oxyphyllus, Symplocos chinensis for. pilosalongrightarrowStaphylea bumalda, Weigela subsessilis. According to the results of the analysis for the relationship between environmental variables and species, F. mandshurica correlated with exchangeable cations significantly.

• Journal of Legislation Research
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• no.53
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• pp.337-374
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• 2017

Wer wegen eines Wahldelikts zu Geldstrafe von mehr als 1 Million Won verurteilt wird, verliert nach ${\S}$ 18 Abs. 1 Satz 3, ${\S}$ 19 Satz 1, ${\S}$ 266 des Koreanischen Wahlgesetzes $f{\ddot{u}}r$ die Dauer von $f{\ddot{u}}nf$ Jahren die $F{\ddot{a}}higkeit$, ${\ddot{o}}ffentliche$ ${\ddot{A}}mter$ zu bekleiden und Rechte aus ${\ddot{o}}ffentlichen$ Wahlen. Bei Verurteilung zu Freiheitsstrafe wegen eines Wahldelikts ${\ddot{A}}mter$ sich die Dauer des Verlusts der $Amtsf{\ddot{a}}higkeit$ und des aktiven bzw. passiven Walhrechts auf 10 Jahre. Dies erfolgt kraft Gesetzes. Das $hei{\ss}t$, dass die Entscheidung ${\ddot{u}}ber$ das Ob und die Dauer des Verlusts nicht im Ermessen des Gerichts steht. Allerdings sollte $diesbez{\ddot{u}}glich$ nicht verkannt werden, dass ein deratriger Entzug von $Amtsf{\ddot{a}}higkeit$, $W{\ddot{a}}hlbarkeit$ u.s.w., mit dem eine Straftat geahndet werden soll, selber von Natur aus eine Art Strafen darstellt. Der im ${\S}$ 41 des Koreanischen StGB geregelte Strafen-Katalog $enth{\ddot{a}}lt$ $n{\ddot{a}}mlich$ eine zeitlich begrenzte Aberkennung des oben genannten ${\ddot{o}}ffentliche$n Rechtsstatus als eine Art Ehrenstrafen. Nicht einleuchtend ist, warum das Wesen der Sanktion $gem{\ddot{a}}{\ss}$ ${\S}$ 18 Abs. 1 Satz 3, ${\S}$ 19 Satz 1, ${\S}$ 266 des Koreanischen Wahlgesetzes, die den gleichen Zweck und die gleiche Rechtsfolge wie die im ${\S}$ 41 des Koreanischen StGB geregelte Ehrenstrafe hat, nicht als Strafe aufgefasst werden sollte. Handelt es sich bei der oben genannten Sanktion um eine Art Ehrenstrafen, so stellt sich die Anforderung, sie je nach der Eigenart der begangenen Tat bzw. des $T{\ddot{a}}ters$ zu individualisieren. Das Gebot der Individualisierung der Strafen, welches $haupts{\ddot{a}}chlich$ vom materiellen Rechtsstaatsprinzip ableitbar ist, kann im Grunde nur verwirklicht werden, wenn das Gericht dazu befugt ist, unter $Ber{\ddot{u}}cksichtigung$ der konkreten $Umst{\ddot{a}}nde$ jedes Einzelfalls ${\ddot{u}}ber$ eine angemessene Strafe zu befinden. Somit ist der kraft Gesetzes eintretenden Verlust der $Amtsf{\ddot{a}}higkeit$ und der $W{\ddot{a}}hlbarkeit$ nur schwer mit dem Gebot der Individualisierung der Strafen vereinbar. Es $w{\ddot{a}}re$ deshalb $w{\ddot{u}}nschenswert$, wenn der Gesetzgeber eine Reform in Betracht ziehen $w{\ddot{u}}rde$, welche den Ersatz des kraft Gesetzes automatisch eintretenden Entzugs der $Amtsf{\ddot{a}}higkeit$ bzw. des Wahlrechts durch die gerichtliche fakultative Aberkennung von diesen Statusrechten beinhaltet.

• Korean Chemical Engineering Research
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• v.55 no.3
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• pp.436-442
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• 2017

Fischer-Tropsch synthesis is the technology of converting a syngas (CO+$H_2$) derived from such as coal, natural gas and biomass into a hydrocarbon using a catalyst. The catalyst used in the Fischer-Tropsch synthesis consists of active metal, promoter and support. The types of these components and composition affect the reaction activity and product selectivity. In this study, we manufactured an iron catalyst using ${\gamma}-Al_2O_3/SiO_2$ mixed support (100/0 wt%, 75/25 wt%, 50/50 wt%, 25/75 wt%, 0/100 wt%) by an impregnation method to investigate how the composition of ${\gamma}-Al_2O_3/SiO_2$ mixed support effects on the reaction activity and product selectivity. The physical properties of catalyst were analyzed by $N_2$ physical adsorption and X-Ray diffraction method. The Fischer-Tropsch synthesis was conducted at $300^{\circ}C$, 20bar in a fixed bed reactor for 60h. According to the results of the $N_2$ physical adsorption analysis, the BET surface area decreases as the composition of ${\gamma}-Al_2O_3$ decreases, and the pore volume and pore average diameter increase as the composition of ${\gamma}-Al_2O_3$ decreases except for the composition of ${\gamma}-Al_2O_3/SiO_2$ of 50/50 wt%. By the results of the X-Ray diffraction analysis, the particle size of ${\alpha}-Fe_2O_3$ decreases as the composition of ${\gamma}-Al_2O_3$ decreases. As a result of the Fischer-Tropsch synthesis, the CO conversion decreases as the composition of ${\gamma}-Al_2O_3$ decreases, and the selectivity of C1-C4 decreases until the composition of ${\gamma}-Al_2O_3$ was 25 wt%. In contrast, the selectivity of C5+ increases until the composition of ${\gamma}-Al_2O_3$ is 25 wt%.

• Research in Community and Public Health Nursing
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• v.6 no.1
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• pp.55-73
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• 1995

An Effect of Muscle Strength Training Program on Muscle Strength, Muscle Endurance, Instrumental Activities of Daily Living and Quality of Life in the Institutionalized Elderly Recent statistics shows that the aged are the fastest growing segment of our population by increasing life span. The age group of over 60 shows multiple health problems and the most serious handicapping problem of these. are related to the changes in muscular skeletal system. With aging, people lose. their muscle mass and muscle strength resulting from biological changes and physical inactivity. Studies documented a 30-50% loss of muscle mass in an advanced age and thus, ordinary life activities can be seriously affected due to weakened muscle strength. Preservation of muscle strength of lower limb is especially important in the aged. Since it is readily affected from reduced physical activity in old age, sometimes to the detriment of moving or walking. So muscle strength exercise program designed for the elderly to improve leg muscle strength and leg muscle endurance. The research design used was nonequivalent control group pretest - protest design. The purposes of this study were to test the effect of muscle strength exercise program utilizing Leg Press on muscle strength, muscle endurance, instrumental activities of daily living(IADL), cognitive perceptual variables and quality of life. Forty nine subjects participating in this study consisted of twenty four male and twenty five female. Twenty four experimental group subjects were selected from C-institution in Chung Buk province, and twenty five control group subjects were selected from O-institution in Chung Nam province. The mean age of subjects was 72.8 years. Muscle strength training program utilizing Leg Press for the experimental group was carried out three times a week for 9 weeks. The data was collected from August, 1993 to October, 1993. Data were analyzed with $X^2-test$, t-test, ANCOVA test, Kruskal Wallis 1-Way ANOVA test using SPSS PC program. Results were obtained as follows : 1) The experimental group showed significantly higher scores on muscle strength (leg lift strength, back lift strength and grip strength) and muscle endurance than control group after the experiment $\ulcorner$F=52.35(p=.001), F=54.07(p=.001), F=6.97(p=.011), F=18.17(p=.001)$\lrcorner$ 2) Experimental group were significantly higher scores on IADL than control group(F=7.51, p=.009). 3) Experimental group showed significantly higher scores on economical state and self esteem aspects of the quality of life scale than control group $\ulcorner$F=10.59(p=.002), F=6.97(p=.011)$\lrcorner$. But there were no differences in emotional state, physical and functional state and relationship with reatives in the quality of life between groups. 4) Scores on IADL showed a significant difference with the level of muscle strength and muscle endurance $\ulcornerx^2=7.73(p=.025),\;x^2=8.86\;(p=.011)\lrcorner$ 5) Scores on self esteem and physical and functional state aspects of the quality of life scale showed a significant difference with the level of IADL $\ulcornerx^2=11.39(p=.003),\;x^2=9.02(p=.011)\lrcorner$. 6) Scores of experimental group after the experiment in cognitive perceptual variables (perceived benefit on exercise, perceived health status, self efficacy, emotion on exercise) were significantly higher than those of control group $\ulcorner$F=32.09(p=.001), F=5.07(p=.029), F=20.63 (p=.001), F=30.38(p=.001)$\lrcorner$. As a result of this study, the effect of strength training exercise program with Leg. Press had improved muscle strength, muscle endurance, IADL, and the perception of self esteem, physical and funtional state, and economical state. Thus strength training program could be beneficially applied for the prevention of disablity and promotion of health and wellbeing in the aged easily and safely. The subjects in the experimental group have maintained their exercises till six months after the cessation of the experiment. This seem to illustrate that changes in cognitive perceptual variables and the improvement in health status have reinforced motivation for the continuation of voluntary exercises. A further study is necessary to determine the factors affecting maintainance of muscle strength exercise and to assess the effect of weight training program on bone density.

• Journal of Life Science
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• v.22 no.12
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• pp.1688-1696
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• 2012

Oenanthe javanica has been used as a food source and also in traditional folk medicine for its detoxifying properties and anti-microbial effects since ancient times. In this study, we evaluated the effect and mechanism of O. javanica seed methanol extract (OJSE) on adipocyte differentiation by 3T3-L1 preadipocytes. Under non-toxic conditions, OJSE treatment resulted in a dose-dependent inhibition of lipid droplet generation and triglyceride accumulation by suppressing adipocyte differentiation, which are associated with the decreased expression of key proadipogenic transcription factors including CCAAR/enhancer binding protein ${\alpha}$, ${\beta}$ ($C/EBP{\alpha}$, $C/EBP{\beta}$) and peroxisome proliferator-activated receptor ${\gamma}$ ($PPAR{\gamma}$). OJSE also significantly inhibited proliferation and differentiation of 3T3-L1 preadipocytes through G1-phase arrest, indicating that OJSE blocked mitotic clonal expansion during adipocyte differentiation. Investigation of the alteration of G1 phase arrest-related proteins indicated a dose-dependent increase in the expression of p21 and reduction in expression of cyclin E, Cdk2, E2F-1 and phospho-Rb by OSJE. Taken together, these results suggest that OJSE inhibits adipocyte differentiation by blocking the mitotic clonal expansion, which is accompanied by preadipocyte cell cycle arrest.

• Journal of Korean Philosophical Society
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• v.130
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• pp.187-218
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• 2014

Nietzsche stellt in seiner Philosophie den "${\ddot{U}}bermensch$" als existenziales Ideal des Menschen sowie als Menschentyp der Zukunft und "die ${\ddot{u}}bermenschliche$ Zukunft" als Zukunft des gesunden Menschen vor. Der ${\ddot{U}}bermensch$ und die ${\ddot{u}}bermenschliche$ Zukunft beinhalten in Nietzsches Philosophie den Sinn des gesunden Menschen und seiner gesunden Zukunft. Nach Nietzsche kann dieses gesunde Ideal durch die aktive Praxis des Menschen endlich verwirklicht werden. Nietzsche unterscheidet das aktive und das passive Verhalten des Menschen und leitet daraus die zwei $gegens{\ddot{a}}tzlichen$ Menschentypen her, also den aktiven Menschen (Herr der Moral des Lebens - geistig Starker) und den passiven Menschen (Sklave der Moral des Lebens - geistig Schwacher). Aber die Typologie dieser anthropologischen Differenz zielt nicht auf die Dualisierung der absoluten Differenz, sondern auf seine relativistisch-relationale ${\ddot{U}}berwindung$. Auf diese Weise setzt die philosophische Anthropologie Nietzsches im Grunde seine eigene praktische Philosophie voraus. Ferner bestimmt Nietzsche den Menschen als Zwischenwesen, das $hei{\ss}t$, dass der Mensch in Also sprach Zarathustra an der existenzialen Grenze zwischen Tier und ${\ddot{U}}bermensch$ und in seiner anthropologischen ${\ddot{A}}sthetik$ an der ${\ddot{a}}sthetischen$ Grenze zwischen $Versch{\ddot{o}}nerung$ und $Verh{\ddot{a}}sslichung$ des Lebens steht, sowie als $M{\ddot{o}}glichkeitswesen$, das an dieser Grenze durch die existenziale $Selbst{\ddot{u}}berwindung$ und die ${\ddot{a}}sthetische$ Selbstgestaltung in jedem Moment seine $Ver{\ddot{a}}nderungsm{\ddot{o}}glichkeit$ $sch{\ddot{o}}pferisch$ verwirklichen kann. Das Ziel dieser Arbeit ist es, aufgrund Nietzsches anthropologischen $Verst{\ddot{a}}ndnisses$ die anthropologische Methodologie zu $er{\ddot{o}}rtern$, die er $f{\ddot{u}}r$ die Verwirklichung der immanenten $Ver{\ddot{a}}nderungsm{\ddot{o}}glichkeit$ des Menschen in seiner Philosophie vorstellt.

• The Korean Journal of Air & Space Law and Policy
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• v.7
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• pp.177-203
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• 1995

In den letzten Jahren h ufen sich $F\ddot{a}llen$, in denen Luftpostsendungen gestohlen worden oder sonst abhanden gekommen sind. Zumeist handeltes sich urn Sendungen mit hohem Wert, oft genug urn Sendungen, die erhebliche Geldsummen oder gar Diamanten enthalten. Da nach den luftpostrechtlichen Vorschriften nur recht geringf gige $Betr\ddot{a}ge$ von der Post erstattet werden, liegt der Gedanke nahe, den Luftfrachtf hrer in Anspruch zu nehmen. Bei der $Luftpostbef\ddot{o}rderung$ liegt ein klassisches $Dreiecksverh\ddot{a}ltnis$ vor. Folgende Rechtsbeziehungen sind zu unterscheiden : (1) $Verh\ddot{a}ltnis$ zwischen dem Absender und der Post, (2) $Verh\ddot{a}ltnis$ zwischen Post und $Luftfrachtf\ddot{u}hrer$, (3) $Verh\ddot{a}ltnis$ zwischen $Gesch\ddot{a}digtern$ und $Luftfrachtf\ddot{u}hrer$, wobei der $Gesch\ddot{a}digte$ der Absender, $Empf\ddot{a}nger$ oder dinglich Berechtigte sein kann. Gegenstand der Untersuchung ist dieses zuletzt genannte $Rechtsverh\ddot{a}ltnis$. Angesichts der praktischen Bedeutung der hiermit in Zusammenhang stehenden Fragen, angesichts aber auch der Tatsache, $da{\beta}$ die auf erste Sicht umfangreiche (in - und) $ausl\ddot{a}ndische$ Literatur zuni Luftpostrecht wenig $aussagekr\ddot{a}ftig$ ist, erscheint eine genauere Untersuchung ist folgender: $Zun\ddot{a}chst$ wird die Rechtslage nach dem Warschauer Abkommen, insbesondere die Bestimmung des Art.2 Abs.2 WA, untersucht. $Ber\ddot{u}cksichtigt$ weren sodann die $\ddot{A}nderungen$ der genannten Bestimmung im Haag 1955 und Montreal 1975. Sodann wird die bislang vorliegende internationale Rechtsprechung behandelt. Dem $schlie{\beta}t$ sich die Diskussion des hier $ma{\beta}$- geblichen 52 LuftVG an. Besonderes Gewicht wird hierbei auf die Einbettung des Lufttransportrechts in das allgemeine Transportrecht gelegt. Es erscheint an der Zeit, die Vereinzelung der einzelnen Transportrechtsgebiete zu durchbrechen. Es wird sich zeigen, $da{\beta}$ aus dieser $Ber\ddot{u}cksichtigung$ anderer Transportrechtsgebiete sich eine sachgerechte $L\ddot{o}sung$ entwicklen Das Warschauer Abkommen befa t sich in seinem Art.2 Abs.2 $ausdr\ddot{u}cklich$ mit der Bef rderung von Luftpost. Die $urspr\ddot{u}ngliche$ Fassung von Warschau ist im Haag 1955 $ge\ddot{a}ndert$ worden. Eine weitere $\ddot{A}nderung$ ist in Montreal 1975 beschlossen worden.