• The Korean Society of Law and Medicine
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• v.11 no.2
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• pp.181-208
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• 2010

Maternity services is often perceived as a troublesome business and obstetric litigation is on the increase in Western countries. Overall, the number of claim and cost of litigation to the NHS Litigation Authority (NHSLA) from maternity services in the UK is increasing every year. Maternity services account for 60-70% of the total sum paid. This has widespread implications for both the individual practitioners and the institutions where they work, due to increasing malpractice insurance premiums. Fear of litigation is also attracting fewer medical graduates into the specialty, leading to a recruitment crisis in obstetrics and gynaecology. The litigation process can cause pain, suffering and distress to clinicians as well as to the patients and their families. Litigation in maternity services is the result of a complex of events when malpractice (presumed or real) impacts on the attitude of pregnant women and their environment. In such complexity, information is mandatory but may often be misinterpreted. If messages are not tailored to the receiver's capacity, communicating well with the pregnant patient becomes crucial. Therefore, to reduce medicallegal issues in obstetrics, increasing attention and an applicable standard of obstetric care to avoid negligence and medical errors should go along with other measures. Considering UK's experiences, NHS redress scheme make it easier to pursue small claims and birth related claims, without necessarily reducing the number of claims processed through the conventional legal system and perhaps encouraging even more of them. The task of dealing with the greater number of inquiries into their practice would inevitably create an added burden for clinicians and hospital managers. Thus further proposals are required to limit the cost of processing inflated claims and to consider whether clinicians should be given some protection from litigation alleging a failure to prevent birth related impairment.

• Journal of the Korean Society for Precision Engineering
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• v.29 no.4
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• pp.409-416
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• 2012

Recently, surface modification technology is of importance to improve the wear resistance and the corrosive resistance for high accurate mechanical parts such as LM guide, Ball Screw and Roller Bearing etc., Those has generally featured on rolling contact mechanism to improve not only the wear and the friction, but also the accuracy and the corrosion performances. For surface modifications of high accurate mechanical parts, normally thermal spray, PVD, CVD and E.P. processes have been used with many materials such as DLC, raydent, W, Ni, Ti etc. Diamondlike carbon (DLC) films possess a combination of attractive properties and have been largely employed to modify the tribological behaviors such as friction, wear, corrosion, fretting fatigue, biocompatibility, etc. However, for rolling contact mechanism mechanical parts DLC films are needed to study for commercial benefit. Rolling contact mechanism has features on effects of cyclic motions and stresses, and also not simply sliding motions. The papers focused on the performance test of wear and corrosive resistance according to Me-DLC film thickness. And also, its thickness effect of wear analysis was carried out through the simulation of the maximum shear stress under the rolling contact surface. As the results, Me-DLC films have more potential to improve the wear resistance for high precision mechanical parts than raydent films.

• Microbiology and Biotechnology Letters
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• v.36 no.4
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• pp.285-290
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• 2008

Rahnella aquatilis strain AY2000 produces an anti-yeast substance (AYS), however activity of the AYS has a declining tendency during storage. To investigate what has been decreased activity of the AYS, the AYS was treated with various physicochemical agents in this paper. The activity of AYS was decreased by heat treatment. Thiol reagent such as $\beta$-mercaptoethanol or dithiothreitol was also another factor decreasing the activity of AYS. However, pH, EDTA, and NaCl were not factors decreasing the activity of AYS. Use of methanol to precipitate the AYS was also decreased the activity of AYS. The activity of AYS was not lost after Sepharose S-400 gel filtration. However, the AYS activity was completely lost, when a polysaccharide and a unknown substance (230 nm absorption) among components of the AYS was separated by DEAE-cellulose chromatography. MIC of the AYS against S. cerevisiae was usually determined at $7.8-15.6{\mu}g/ml$.

• Women's Health Nursing
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• v.8 no.3
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• pp.402-411
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• 2002

Purpose: The objective of this study was to identify the effectiveness of continued breast feeding and maternal identity between rooming-in and not rooming-in groups of mothers in post partum care. Method: The subjects were selected by convenient sampling, with 95 women in childbirth completing a questionnaire. The data were collected on the 2nd day after delivery by questionnaire, and after the 4th and 8th weeks by telephone interview. Measures used in this study included general characteristics, breast feeding related characteristics, and the maternal identity scale revised by Koh(1996). The data were analyzed with the SPSS program, and the Chi-test and t-test were used to identify the effect on breast feeding and maternal identity. Results: Continued breast feeding up to 4 weeks after deliverly was not statistically significant between rooming-in and not rooming-in group, but beyond 8 weeks of deliverly, it was significantly different in rooming-in group(p<.01). Maternal identity was significantly higher in rooming-in group than in not rooming-in group(<.01). Conclusion: Mothers preferred rooming-in system because it helped breast feeding and baby care. Rooming-in system provides self confidence in taking care of baby, knowledge about breast feeding and stimulates early phase lactation. We recommend rooming-in system in hospitals to promote breast feeding and maternal identity. Nurses are encouraged to discuss prenatal breast feeding before delivery and rooming-in care should be planned individually for continuation of breast feeding and formation of maternal identity.

• Korean Chemical Engineering Research
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• v.52 no.4
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• pp.451-458
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• 2014

Waterborne polyurethane dispersion (WPUD) was prepared from polycarbonate diol (PCD), isophorone diisocyanate (IPDI) and dimethylol propionic acid (DMPA) as starting materials. Then, waterborne acrylic polyurethane dispersion (AUD) was synthesized by reacting the WPUD with different types of acrylate monomers, such as methyl methacrylate (MMA), 2-hydroxyethyl methacrylate (HEMA) and butyl acrylate (BA). Subsequently, the AUD was mixed with multi-walled carbon nanotube (MWCNT) to yield a conductive coating solution, and the mixture was coated on the polycarbonate substrate. The pencil hardness, abrasion resistance and chemical resistance of the coating films from AUD were improved than those from WPUD, while the electrical conductivity of the coating films from AUD was decreased than that of WPUD. Also, the effect of acrylate types on the properties of coating films was investigated. The AUD obtained from HEMA showed the strongest pencil hardness, while the AUD obtained from MMA exhibited the strongest abrasion resistance, chemical resistance and electrical conductivity among several types of acrylate monomers.

• Korean Chemical Engineering Research
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• v.51 no.1
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• pp.73-79
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• 2013

Waterborne polyurethane dispersion (WPUD) was synthesized from polycarbonate diol (PCD), isophorone diisocyanate (IPDI) and dimethylol propionic acid (DMPA) as starting materials. Then, waterborne acrylic polyurethane dispersion (AUD) was synthesized by reacting the WPUD with an acrylate monomer, methyl methacrylate (MMA). Subsequently, the AUD was mixed with multi-walled carbon nanotube (MWCNT) to yield a conductive coating solution, and the mixture was coated on the polycarbonate substrate. With increasing the amount of MMA in the AUD, the pencil hardness, abrasion resistance and chemical resistance of the coating films were improved, but the electrical conductivity of the coating films was decreased. On the other hand, the pencil hardness, abrasion resistance and chemical resistance of coating films were decreased, but the electrical conductivity was enhanced with increasing the amount of MWCNT in the conductive coating solutions.

• Korean Journal of Biological Psychiatry
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• v.13 no.2
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• pp.110-116
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• 2006

Objectives : Alteration of hippocampus was demonstrated in the maternal social separation(MSS) pups, separated from dams on postnatal day(pnd) 14 and placed alone. Therefore, to understand the molecular events involved in the MSS, we have initiated a search for gene profiles that are up or down-regulated in the hippocampus of MSS pups. Methods : Analysis of cDNA microarray was performed by using total RNA extracted from the hippocampus of control and MSS pups on pnd 17. Also, passive-avoidance test was demonstrated on pnd 35. Results : Up-regulation of Nedd4a was observed in the hippocampus of MSS pups. Also, MSS rats showed less elongation of latency in passive avoidance test. Conclusion : We suggest that environmental effects of MSS may be altered the neural and/or glial differentiation and synapse formation-related genes which may lead cognitive alterations in MSS rats.

• Journal of Advanced Marine Engineering and Technology
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• v.36 no.1
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• pp.78-84
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• 2012

Mold may experience deterioration of molding quality as the abrasion of mold occurring due to friction between mold and molded product works as allowance in the course of press process. Therefore, to improve the wear-resistance of mold, methods like nitriding, carburizing, flame and induction surface hardening treatment etc have been applied. However, as such methods are accompanied by problems like shape limitation or product deformation etc, laser surface treatment technology is under review as surface treatment method that can solve such problems. Therefore, in this study, mold material cast iron was surface-treated by using high power diode laser. In previous report 1 and report 2, the heat treatment characteristics were compared by the differences of die materials and shapes, then this paper observed microstructure by using optical microscope and scanning electronic microscope to analyze the structural difference of hardened zone, interface area and base metal after heat treatment. And the structural condition was grasped through EDS. As a result of microstructure, hardened zone showed formation of acicular martensite.

• Journal of Welding and Joining
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• v.12 no.4
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• pp.102-109
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• 1994

The thick and hard alloyed layer was formed on the surface of Aluminum Cast Alloy(AC2B) by PTA overlaying process with Cr, Cu and Ni metal powders under the condition of overlaying current 150A, overlaying speed 150mm/min and different powder feeding rate 5-20g/min. The characteristics of hardening and were resistance of alloyed layer have been investigated in relation to microstructure of alloyed layer. As a result, it was made clear that Cu powder was the most superier one in three metal powders used due to an uniform hardness distribution of Hv 250-350, good wear resistance and freedom from cracking in alloyed layer of which microstructure consisted of hypereutectic. On the contrary, irregular hardness distribution was usually obtained in Cr or Ni alloyed layers of which hardness was increased as Cr or Ni contents and reached to maximum hardness of about Hv 400-850 at about 60wt% Cr or 40wt% Ni in alloyed layer. However the cracking occurred in these alloyed layers with higher hardness than Hv 250-300 at more than 20-25wt% of Cr or Ni contents in alloyed layer. Wear rate of alloyed layer was decreased to 1/10 in Cu alloyed layer and 1/5 or 1/3 in Cr or Ni alloyed layer with same hardness of about Hv 300 in comparison with that of base metal at higher sliding speed.

• Research in Community and Public Health Nursing
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• v.15 no.2
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• pp.187-196
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• 2004

Purpose: The purposes of this study are: to evaluate the effectiveness of organizations engaged in MCH programs; and to suggest the executive organizational system of maternal and child health (MCH) services linked to HP services at public health centers. Method: This study analyzes data on the present conditions and evaluates the organizational effectiveness of MCH workers at public health centers nationwide. The organizational effectiveness of MCH organization is assessed by MCH workers. Finally, this study seeks to obtain consensus among experts in the field of MCH. Result: The results are as follows. Of public health centers, 61.9% have a MCH organization for their MCH programs. For the other 38.2%, MCH services are undertaken by HP organization. Executive organizational systems for MCH services at leading MCH health centers are classified into three types: Type I (provides MCH and HP services through MCH organizations); Type II (provides MCH and HP Services through HP organizations) ; and Type III (provides MCH services through MCH organizations and HP services through HP organizations). The evaluation of the organizational effectiveness of MCH organizations shows that Type II is the most effective in terms of teamwork, autonomy, service quality and resource utilization. Conclusion: This study suggests that executive organizations for MCH and HP services for women and children should be established in accordance with lifetime health programs in order for public health centers to utilize the limited MCH and HP resources efficiently.