The formula for the singularity of Szeg\"o kernel : I

Masatake Kuranishi 대한수학회 2003 대한수학회지 Vol.40 No.4

We develop a method of calculating explicitly thesingularity of Szeg"o and Bergman kernel by using the processdeveloped by Boutet de Monvel and Sj"ostrand.

Safety Assessment of Foods Produced Using Recombinant DNA Techniques

Toyoda, Masatake The Korean Society of Toxicology Korea Environment 2001 Toxicological Research Vol.17 No.-

The introduction of genetically modified crops has raised concerns regarding safety issues over the insertion of foreign genes into plant genomes using recombinant DNA technology. Since 1991 in Japan, 29 foods and 6 food additives have been evaluated, based on the "Guideline for Safety Assessment", before these foods were marketed. The MHW, however, decided that safety assessment of such foods and food additives should be legally imposed. because soon such foods and food additives are expected to circulate globally and a new system for assessing safety of such foods and food additives at a pre-market stage is necessary, in order to avoid the distribution of any genetically modified foods that have had no safety assessment. The MHW published relevant announcements to amend existing regulations on 1 May 2000. "Standards for safety assessment of seed plant" is established based on a concept of substantial equivalence, and applicable to the products which are regarded as equivalent to the existing products used as foods and food additives. The characterization of the food products entails consideration of the molecular characterization. phenotypic and compositional characteristics, key nutrients and toxicants, and toxicity and allergenicity of the introduced proteins, and if there are indications of unintended effects of the modification, whether further safety testing (animal studies etc.) is needed should be considered. Safety and wholesomeness studies with whole foods should be care fully designed in order to avoid nutritional imbalances causing artifacts and uninterpretable results as was the case of Dr. Pusztaiis report. A case study of genetically modified soybeans (glyphosate-tolerant soybeans) on the immune system of rats and mice is shown. Chemical compositions were also compared with those of the non-GM soybeans. The studies failed to detect any differences in immuno-toxic activity.muno-toxic activity.

THE FORMULA FOR THE SINGULARITY OF SZEGO KERNEL : I

Kuranishi, Masatake Korean Mathematical Society 2003 대한수학회지 Vol.40 No.4

We develop a method of calculating explicitly the singularity of Szego and Bergman kernel by using the process developed by Boutet de Monvel and Sjostrand.

중세 말과 근대 초 유럽에서의 마녀와 상상

구로카와마사다케 ( Kurokawa Masatake ) 한국서양중세사학회 2010 西洋中世史硏究 Vol.0 No.26

마녀는 중세 말과 근대 초 유럽에서 사회적 일탈자의 전형이었다. 하지만 마녀에 대한 인식은 다른 일탈자에 대한 인식과 달랐다. 당시 사람들에게 마녀는 실재하는 사람인 동시에 상상의 존재이기도 했다. 본 논문은 이러한 마녀의 실재와 상상이라는 문제를 집중적으로 다룬다. 특히 마녀와 체액 병리학과의 상호 관련성을 추적할 것이다. 마녀와 멜랑콜리 체질 사이의 관계를 분석하기 위해 본 논문은 중세 말과 근대 초 대표적인 악마 논고들 즉 헨리 인스티토리스와 야콥 스프렝거의 『마녀의 망치(1486)』, 요한 와이어의 『악마의 환영술에 관하여(1486)』, 장 보댕의 『마녀의 빙의망상에 관하여(1580)』를 비교분석한다. 『마녀의 망치(1486)』는 다양한 마녀 행위들을 상상의 산물이 아니라 실재하는 것으로 간주했다. 『마녀의 망치(1486)』는 멜랑콜리 체질이 악마와 관련되어 있음을 인정하지만 마녀와 멜랑콜리 체질 사이의 상호 연관성을 구체적으로 보여주지 않는다. 와이어는 마녀사냥을 반대했고 그의 비판은 마녀와 멜랑콜리 체질 사이의 관련성에 근거하고 있다. 그에 따르면 일반적으로 마녀들은 나이가 많고 멜랑콜리 체질의 여성들이었다. 의존성은 멜랑콜리 체질의 전형적인 증상이며, 멜랑콜리 체질의 늙은 여성들은 쉽게 악마의 통제를 받는다는 것이다. 이런 이유로 와이어는 그녀들을 마녀로 처형하도록 내버려두는 것보다 우선 의사의 진찰을 받게 하는 것이 나을 것이라고 주장했다. 반면 보댕은 이러한 견해를 맹렬히 비난했다. 보댕에게 마녀의 사악한 행위는 실재하고 분명한 것이었다. 멜랑콜리 체질에 관해서도 보댕은 와이어와는 다른 견해를 가지고 있었다. 보댕은 멜랑콜리 체질을 매우 긍정적으로 평가하면서 마녀와 멜랑콜리 체질 사시의 관계를 인정하지 않았다. 이러한 비교분석을 통해 본 논문은 멜랑콜리에 관한 견해가 16세기 초반 급격하게 변했음을 확인했다. 고대 이후 멜랑콜리 체질에 관해서는 부정적인 견해와 긍정적인 견해가 동시에 존재했었다. 긍정적인 견해는 특히 15세기 말부터 16세기 첫 사반세기까지 유행했었다. 하지만 종교개혁 때문에 멜랑콜리는 부정적인 함의를 얻게 되었고 이러한 부정적 사고는 16세기 후반세기에 주류가 되었다.

Estimation of DOAs of EM Waves Emitted from Multiple Partial Discharge Sources in Free Space by Using Wideband Signal Subspace Methods

Tian, Ye,Kawada, Masatake The Korean Institute of Electrical Engineers 2011 The Journal of International Council on Electrical Vol.1 No.4

Detecting partial discharge (PD) caused by the degradation of insulating materials is needed to prevent the electric breakdown. We have studied radio remote sensing to detect PD. Therefore, it is necessary to remove the electromagnetic (EM) waves reflected on the power equipment when PD source is localized. In this paper, we consider to estimate the direction-of-arrival (DOA) of EM waves emitted from PD in a free space. The signal subspace method, which uses an eigenstructure of the correlation matrix obtained from the received signals, is approved useful to estimate DOA. The finite difference time domain (FDTD) method is used to simulate the propagation of EM waves emitted from PD sources. The wideband signal subspace methods, e.g. coherent signal subspace method (CSSM), test of orthogonality of projected subspace (TOPS), test of orthogonality of frequency (TOFS), and improved CSSM (I-CSSM) are applied to estimate the DOA of EM waves.

The Association of Each Disability Based on the Three Sub-Categories of the Roland-Morris Disability Questionnaire during Hospitalization with Itself at 1 Year Postoperatively in Patients with Degenerative Lumbar Spinal Stenosis

Daisuke Higuchi,Nodoka Manabe,Masatake Ino 대한척추외과학회 2014 Asian Spine Journal Vol.8 No.1

Study Design: A prospective study in a hospital. Purpose: To investigate whether each disability based on the three sub-categories of the Roland-Morris disability questionnaire (RDQ) during hospitalization is associated with itself at 1 year postoperatively in patients with degenerative lumbar spinal stenosis (LSS). Overview of Literature: Although the total score of the RDQ represents whole pain-related disabilities or health-related quality of life, it is a shortcoming that multi-dimensional changes in disabilities are difficult to understand when only using the RDQ. Methods: Fifty-seven patients with LSS (men, 28; women, 29; 63.0±12.1 years) were included. Disabilities, pain intensity and depressive feelings were assessed at preoperation, discharge and 1 year postoperatively. Results: The range of “mental and physical activities (MPA),” “functional movements on/around a bed (FM)” and “walking function (WF)” scores were 0 to 13 (median, 8), 0 to 6 (median, 6) and 0 to 4 (median, 3) at preoperation; 0 to 12 (median, 0), 0 to 6 (median, 0), and 0 to 4 (median, 0) at discharge; and 0 to 8 (median, 0), 0 to 5 (median, 0), and 0 to 4 (median, 0) at 1 year postoperatively, respectively. The following significant multiple regression equations were obtained: MPA at 1 year postoperatively=0.56 (MPA at discharge)- 0.10 (depression at discharge)+0.90 (adjusted r 2=0.41), FM at 1 year postoperatively=0.35 (MPA at discharge)-0.06 (depression at discharge)+0.40 (adjusted r 2=0.45) and WF at 1 year postoperatively=0.59 (WF at discharge)-0.08 (depression at discharge)+0.63 (adjusted r 2=0.29). Conclusions: In our LSS population, each disability based on MPA and WF at discharge is associated with itself in the future. Therefore, disabilities excluding functional movements are longitudinally independent.

Electrical conduction properties of La-substituted bismuth titanate single crystals

Masaru Miyayama,Yuji Noguchi,Masatake Takahashi 한양대학교 세라믹연구소 2005 Journal of Ceramic Processing Research Vol.6 No.4

Single crystals of lanthanum-substituted bismuth titanate were grown by a self-flux method, and electrical conductivities were investigated at high temperatures. Lanthanum substitution suppressed Bi vaporization during annealing and decreased the electrical conductivity in both the a- and c-axes. It is suggested that lanthanum substitution stabilizes the perovskite blocks and hence decreases the concentrations of oxygen vacancies and holes as the conduction carriers. An ab-initio calculation indicated that the formation energy of an oxygen vacancy in the perovskite block is increased by lanthanum substitution, supporting the above experimental results.

PCSP 1.0 Software for Partial Credit S-P Chart Analysis

Duchieu Pham,Tianwei Sheu,Masatake Nagai 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.6

S-P Chart Analysis is an effective method to diagnose the learning status of students and items quality. This method is very suitable for use in adaptive learning systems. However, it only handles dichotomous data without considering the test data of partial credit scoring. The main purpose of this study is to develop a tool for analyzing the test data of partial credit scoring according to S-P Chart Analysis method. First, the study proposed the Partial Credit S-P Chart Analysis. Then, the study developed the software to analyze partial credit data according to the method proposed. PCSP 1.0 software developed by this study can help the user to reduce the complex mathematical calculations and provide results accurately and quickly. The interaction between users and the software is very easy through a graphical user interface. PCSP 1.0 software handles not only dichotomous data but also partial credit data. This software is an actually useful tool for evaluating and diagnosing the achievement of students.

Dietary Antioxidant and Metabolic Syndrome

( Shin Kyo Chung ),( Yoshiaki Takaya ),( Niwa Masatake ) 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2008 식품저장과 가공산업 Vol.7 No.2

Dietary Antioxidant and Metabolic Syndrome

( Shin Kyo Chung ),( Yoshiaki Takaya ),( Niwa Masatake ) 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2008 한국식품저장유통학회 학술대회 Vol.2008 No.-