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Search Results: 1 - 10 of 1291 matches for " Kazuo Haze "
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The Gravitation of the Moon Plays Pivotal Roles in the Occurrence of the Acute Myocardial Infarction
Ryotaro Wake,Junichi Yoshikawa,Kazuo Haze,Shinichiro Otani
Environmental Health Insights , 2008,
Abstract: Acute myocardial infarction (AMI) is a social burden. However, being able to predict AMI could lead to prevention. A previous study showed only the relation between the lunar phase and the occurrence of AMI, but the period it takes for the moon to orbit around the earth and the period of the lunar phase differ. This study investigated the effect of the gravitation of the moon on AMI. Data was comprised of 1369 consecutive patients with first AMI at 5 hospitals from October, 1984 to December, 1997. The universal gravitation of the moon was calculated and compared to the earth onset time of AMI. Universal gravitation of the moon was derived by G*m/d2 (G: universal gravitation constant, m: the mass of the moon, d: the distance between the center of the moon and the center of the earth). The relationship between m/d2 and the cases of AMI was determined. There was an increase in cases, when there is a distance of more than 399864 km from the center of the earth to the center of the moon. The gravitation of more than 399864 km was determined to be weaker gravitation. It is confirmed that the number of AMI patients significantly increases at weaker gravitation periods in this multicenter trial. In conclusion, these results suggest that the gravitation of the moon may have an influence on the occurrence of AMI.
Guest Editorial IMAPS Electronic Devices and Systems International Conference, 2010
J. Haze
Radioengineering , 2011,
Abstract:
Development of binary shaped pupil mask coronagraph for the observation of exoplanets
Kanae Haze
Physics , 2011,
Abstract: Direct observation of extra-solar planets (exoplanets) is essential to understand how planetary systems were born, how they evolve, and ultimately, to identify biological signatures on these planets. However, the enormous contrast in flux between the central star and associated planets is the primary difficulty in the direct observation. This has required stellar coronagraphs which can improve the contrast between the star and the planet to be developed. Of the various kinds of coronagraphs, we focused on a binary-shaped pupil mask coronagraph. The reasons for using this coronagraph are robust against pointing errors, essentially achromatic and relatively simple. We conducted a number of coronagraph experiments using a vacuum chamber and a checker-board mask, a kind of binary-shaped pupil mask, without active wavefront control. We demonstrated PSF subtraction is potentially beneficial for improving contrast of a binary-shaped pupil mask coronagraph, this coronagraph produces a significant improvement in contrast with multi-color/broadband light sources, and the new free-standing mask for practical use provides superior performance of improving contrast. We performed the tasks necessary to make the coronagraph fit for practical use. In conclusion, we carried out verification test for more real coronagraphic observations.
The Gravitation of the Moon Plays Pivotal Roles in the Occurrence of the Acute Myocardial Infarction
Ryotaro Wake, Junichi Yoshikawa, Kazuo Haze, Shinichiro Otani, Takayoshi Yoshimura, Iku Toda, Masaki Nishimoto, Takahiko Kawarabayashi, Atsushi Tanaka, Kenei Shimada, Hidetaka Iida, Kazuhide Takeuchi and Minoru Yoshiyama
Environmental Health Insights , 2012,
Abstract: Acute myocardial infarction (AMI) is a social burden. However, being able to predict AMI could lead to prevention. A previous study showed only the relation between the lunar phase and the occurrence of AMI, but the period it takes for the moon to orbit around the earth and the period of the lunar phase differ. This study investigated the effect of the gravitation of the moon on AMI. Data was comprised of 1369 consecutive patients with first AMI at 5 hospitals from October, 1984 to December, 1997. The universal gravitation of the moon was calculated and compared to the earth onset time of AMI. Universal gravitation of the moon was derived by G*m/d2 (G: universal gravitation constant, m: the mass of the moon, d: the distance between the center of the moon and the center of the earth). The relationship between m/d2 and the cases of AMI was determined. There was an increase in cases, when there is a distance of more than 399864 km from the center of the earth to the center of the moon. The gravitation of more than 399864 km was determined to be weaker gravitation. It is confirmed that the number of AMI patients significantly increases at weaker gravitation periods in this multicenter trial. In conclusion, these results suggest that the gravitation of the moon may have an influence on the occurrence of AMI.
Basic Block of Pipelined ADC Design Requirements
V. Kledrowetz,J. Haze
Radioengineering , 2011,
Abstract: The paper describes design requirements of a basic stage (called MDAC - Multiplying Digital-to- Analog Converter) of a pipelined ADC. There exist error sources such as finite DC gain of opamp, capacitor mismatch, thermal noise, etc., arising when the switched capacitor (SC) technique and CMOS technology are used. These non-idealities are explained and their influences on overall parameters of a pipelined ADC are studied. The pipelined ADC including non-idealities was modeled in MATLAB - Simulink simulation environment.
Non-motor signs and symptoms in Parkinson’s disease  [PDF]
Kazuo Abe
Health (Health) , 2012, DOI: 10.4236/health.2012.431171
Abstract: Motor symptoms are cardinal clinical features of Parkinson’s disease (PD). Progress in drug therapy and rehabilitation has been presenting beneficial effect for motor symptoms. However, non-motor symptoms and signs in PD have been accumulated growing attentions and its amelioration may also give beneficial effect for PD patients’ and their care givers’ quality of life. In this mini-review, I overviewed non-motor symptoms and signs in PD.
A Revival of Little Black Sambo in Japan  [PDF]
Kazuo Mori
Advances in Literary Study (ALS) , 2014, DOI: 10.4236/als.2014.21003
Abstract:

In the late 1980s, a popular children’s book “Little Black Sambo”(hereafter,LBS) disappeared from all bookstores in Japan.The book was alleged to have racist characteristics such as the name of the boy, the way the illustrations caricatured blacks, etc. Mori (1997) revised the original story by changing the protagonist from a black boy to a black Labrador puppy, with eliminating the word “Sambo”,which had a historically pejorative connotation in the US. Mori (2005) conducted an experiment to compare the entertainment value of the two versions of LBS using four-year-old children and found no difference. Mori (2005) also casted a suspicion that the real reason why the book was withdrawnin Japan was a matter of piracy rather than racism. All Japanese publishers at that time had not properly obtained the copyright. Nowadays there are several versions of LBS available in bookstores all over Japan.

Getting Rid of the Horizontal-to-Vertical Strategy: A Case Report of a Japanese Research Psychologist  [PDF]
Kazuo Mori
Open Journal of Social Sciences (JSS) , 2014, DOI: 10.4236/jss.2014.24040
Abstract: Most Japanese research psychologists have used “Horizontal-to-Vertical Conversion Strategy” for their research, simply replicating experimental studies published in Western journals with Japanese participants and publishing papers only in Japanese (the traditional orthography of the Japanese language is vertical). This short article criticized this prevailing research strategy among Japanese psychologists and reported a series of studies resulted from an invention of new experimental procedure. It showed an example of a Japanese researcher who had got rid of the inadequate approach by inventing a new experimental method. It also aimed to encourage Japanese psychologists to conduct innovative research and publish their studies in English journals.
Automatic & Safe Oxytocin Induction of Labor  [PDF]
Kazuo Maeda
Open Journal of Obstetrics and Gynecology (OJOG) , 2018, DOI: 10.4236/ojog.2018.89084
Abstract: Aims: To prevent fetal damage by excess oxytocin administration of manually controlled infusion, by automatic and safe increasing infusion setting with monitoring uterine contraction and fetal heart rate. Methods: Starting infusion level was 2 milliU/ml, as oxytocin sensitivity of a pregnant uterus is unknown, to avoid hyper contraction and fetal bradycardia caused by unexpected excess oxytocin sensitivity. The infusion automatically increased with automatic monitoring of uterine contraction curve, then the increasing stopped when contraction reached to normal labor level, where the infusion level maintained, which continued until delivery, if there is no trouble. However, the infusion continued until expiring all fluid in case of insensitive uterus, where the induction was performed in another day. The infusion stopped automatically when contraction was too strong, or fetal heart rate is abnormal. Thus, oxytocin sensitive case is protected from excess contraction and fetal asphyxia. Results: Normal vaginal delivery was achieved in 28/33 cases (85%), which was more than manually controlled infusion. No case was abnormal in successful oxytocin infusion. Conclusion: The automated technique will be applied to oxytocin labor induction.
Design of the 12-bit Delta-Sigma Modulator using SC Technique for Vibration Sensor Output Processing
M. Pavlik,V. Kledrowetz,J. Haze
Radioengineering , 2012,
Abstract: The work deals with the design of the 12-bit Delta-Sigma modulator using switched capacitors (SC) technique. The modulator serves to vibration sensor output processing. The first part describes the Delta-Sigma modulator parameters definition. Results of the proposed topology ideal model were presented as well. Next, the Delta-Sigma modulator circuitry on the transistor level was done. The ONSemiconductor I2T100 0.7 um CMOS technology was used for design. Then, the Delta-Sigma modulator nonidealities were simulated and implemented into the MATLAB ideal model of the modulator. The model of real Delta-Sigma modulator was derived. Consequently, modulator coefficients were optimized. Finally, the corner analysis of the Delta-Sigma modulator with the optimized coefficients was simulated. The value of SNDR = 82.2 dB (ENOB = 13.4 bits) was achieved.
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