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Search Results: 1 - 10 of 55 matches for " Kanae Tawaraya "
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Single-incision laparoscopic cholecystectomy: Single institution experience and literature review
Yasumitsu Hirano, Toru Watanabe, Tsuneyuki Uchida, Shuhei Yoshida, Kanae Tawaraya, Hideaki Kato, Osamu Hosokawa
World Journal of Gastroenterology , 2010,
Abstract: Single-incision laparoscopic surgery is a rapidly evolving field as a bridge between traditional laparoscopic surgery and natural orifice transluminal endoscopic surgery. We report one of the initial clinical experiences in Japan with this new technique. Four cases of gallbladder diseases were selected for this new technique. A single curved intra-umbilical 25-mm incision was made by pulling out the umbilicus. A 12-mm trocar was placed through an open approach, and the abdominal cavity was explored with a 10-mm semi-flexible laparoscope. Two 5-mm ports were inserted laterally from the laparoscope port. A 2-mm mini-loop retractor was inserted to retract the fundus of the gallbladder. Dissection was performed using an electric cautery hook and an Endograsper roticulator. There were two women and two men with a mean age of 50.5 years (range: 40-61 years). All procedures were completed successfully without any perioperative complications. In all cases, there was no need to extend the skin incision. Average operative time was 88.8 min. Postoperative follow-up didnot reveal any umbilical wound complication. Single-incision laparoscopic cholecystectomy is feasible and a promising alternative method as scarless abdominal surgery for the treatment of some patients with gallbladder disease.
Potential and Use of Nitrate in Agricultural Purposes  [PDF]
Anupam Khajuria, Shinjiro Kanae
Journal of Water Resource and Protection (JWARP) , 2013, DOI: 10.4236/jwarp.2013.55053
Abstract:

With the excess use of nitrogen, a number of global and regional factors need to be addressed. Nitrate contamination of agricultural water leads to a number of environmental problems. During the twentieth century, the human being has used increasingly more reactive nitrogen, intentionally as fertilizer. The revolution in agricultural production is possibly increase by the use of nitrogen fertilizers. The inorganic nitrogen fertilizers are an essential input for maintaining high crop yield. This article discusses the origin and role of nitrogen in the environment. The potential and use of nitrogen as fertilizer for groundwater and surface water quality resources in agricultural purposes are discussed.

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.
Adaptation Technology: Benefits of Hydrological Services—Watershed Management in Semi-Arid Region of India  [PDF]
Anupam Khajuria, Sayaka Yoshikawa, Shinjiro Kanae
Journal of Water Resource and Protection (JWARP) , 2014, DOI: 10.4236/jwarp.2014.66055
Abstract:

Watershed management consists of multifunctional activities to manage and address the increasing water resource problems. Ever increasing water demand and rapidly depleting water resources, it has become necessary to develop the adaptation options to recharge groundwater resources. A watershed is a special kind of Common Pool Resources (CPRs); an area is defined by hydrological linkages where optimal management requires coordinating the use of natural resources by public participation. Watershed developments have shown significant positive impacts on water table, perennially of water in wells and water availability especially in semi-arid regions. This paper describes direct and indirect impacts of the watershed activities and benefits of hydrological services dealing with watershed management with future prediction of net irrigation water supply. In the present work, we have also discussed the multiple impacts of watershed of CPRs for improving groundwater and surface water resources.

Experimental antithrombotic effect of potatoes harvested in the autumn  [PDF]
Junichiro Yamamoto, Megumi Masuda, Kanae Hyodo, Masahiro Iwasaki
Health (Health) , 2012, DOI: 10.4236/health.2012.42017
Abstract: Prevention of arterial thrombotic diseases has a high priority in developed countries. While an inappropriate diet is known to enhance the risk for acute thrombotic events, a regular diet with proven antithrombotic effects might be beneficial in the prevention of such diseases. The present study is part of a series of investigations aimed to assess the possible antithrombotic activity of various fruits and vegetables. Previously we demonstrated antithrombotic effect of specific potato varieties harvested in the spring. The present study aimed to test seven varieties of potatoes, which were harvested in the autumn. The in vitro Global Thrombosis Test (GTT) was used for selection, which was then followed by the He-Ne laser-induced in vivo thrombosis test in mice treated with potato filtrates orally. We have shown that all seven potato varieties showed some antithrombotic effect and the heat-resistant effect of four varieties was highly significant. Our present findings add further components to a diet containing fruits and vegetables with antithrombotic effect.
Relationship of Smartphone Dependence to General Health Status and Personality Traits among University Students  [PDF]
Masahiro Toda, Satoko Ezoe, Kanae Mure, Tatsuya Takeshita
Open Journal of Preventive Medicine (OJPM) , 2016, DOI: 10.4236/ojpm.2016.610020
Abstract:
We investigated associations between smartphone dependence and general health status or personality traits. To 197 medical university students, we administered a set of self-reporting questionnaires designed to evaluate these parameters. For males, smartphone dependence positively correlated with somatic symptoms, anxiety and insomnia, and emotional instability, and negatively correlated with agreeableness. For females, smartphone dependence positively correlated with somatic symptoms, severe depression, and extraversion, and negatively correlated with social dysfunction. These findings suggest that smartphone dependence may be associated with general health status or personality traits and that there may be a gender difference in these associations.
The antithrombotic effects of onion filtrates in rats and mice  [PDF]
Kanae Hyodo, Izumi Horii, Masaru Nishino, John C Giddings, Junichiro Yamamoto
Health (Health) , 2011, DOI: 10.4236/health.2011.36055
Abstract: The prevention of arterial thrombotic disease has a high priority in developed countries. An inappropriate diet is known to enhance the risk for acute thrombotic events, and a regular diet with proven antithrombotic effects might be a beneficial way to prevent disease. The present study was undertaken as part of a series of in-vestigations to examine various vegetables and fruits for antithrombotic activity, and to add to the previously reported data on different onion varieties produced in the northern part of Japan (Hokkaido). For this purpose, a sophisticated method to assess shear-induced platelet reac-tivity/thrombolysis in vitro (The Global Throm-bosis Test, GTT) was used to screen 5 different varieties of onion produced in the middle part of Japan (Awaji Island). The different onion varie-ties demonstrated a variable effect on thrombo-sis, and one particular variety, designated ONA-03, appeared to exert an antithrombotic effect. Another variety, ONA-01, appeared to have prothrombotic activity by inhibiting spon-taneous thrombolytic activity. The especially effective variety was further investigated using an in vivo, laser-induced thrombosis model in mice. The heat stable antithrombotic activity in vitro and in vivo was demonstrated to be due to antiplatelet activity. The present findings added to the list of antithrombotic fruits and vegeta-bles.
The effect of cigarette smoking on flexibility in Japanese  [PDF]
Kanae Oda, Nobuyuki Miyatake, Noriko Sakano, Takeshi Saito, Akihiko Katayama, Kenji Nishii, Takeyuki Numata
Health (Health) , 2012, DOI: 10.4236/health.2012.49089
Abstract: To investigate the link between cigarette smoking and flexibility in the Japanese population, we used data of 4234 men and 9169 women, aged 20-79 years, in this cross-sectional investigation study. Flexibility such as sit and reach were measured. In addition, habits of cigarette smoking and exercise were obtained by well-trained medical staff. The effect of cigarette smoking on flexibility was evaluated. A total of 1613 men (38.1%) and 995 women (10.9%) were having habits of cigarette smoking. Flexibility in men was decreased with aging and that in women increased with aging under 60’s. Flexibility in subjects with cigarette smoking was significantly lower than that in subjects without cigarette smoking even after adjusting for age and exercise habits in both sexes. Cigarette smoking might be modifiable factor of flexibility in the Japanese.
The relationship between income inequality and obesity in all 47 prefectures of Japan: Ecological study  [PDF]
Akihiko Katayama, Nobuyuki Miyatake, Kanae Oda, Takeshi Saito, Shoko Murakami, Noriko Sakano
Open Journal of Epidemiology (OJEpi) , 2013, DOI: 10.4236/ojepi.2013.31001
Abstract:

The link between income inequality and obesity inJapanwas evaluated. Income inequality of all 47 prefectures of Japan as expressed by Gini coefficient was obtained from National Statistics Center, Japan. The rate of obesity (%) was also obtained from National NutritionSurvey,Japan. The effect of income inequality on obesity was evaluated by ecological study. Income inequality as expressed by Gini coefficient was 0.31 ± 0.01 and the rate of obesity was 31.6% ± 5.6%. Gini coefficient was significantly and positively correlated with the rate of obesity (r = 0.490, p = 0.0005). Income inequality was might be associated with the rate of obesity inJapan. 

Deriving a global river network map and its sub-grid topographic characteristics from a fine-resolution flow direction map
D. Yamazaki, T. Oki,S. Kanae
Hydrology and Earth System Sciences (HESS) & Discussions (HESSD) , 2009,
Abstract: This paper proposes an improved method for converting a fine-resolution flow direction map into a coarse-resolution river network map for use in global river routing models. The proposed method attempts to preserve the river network structure of an original fine-resolution map in the upscaling procedure, as this has not been achieved with previous upscaling methods. We describe an improved method in which a downstream cell can be flexibly located on any cell in the river network map. The improved method preserves the river network structure of the original flow direction map and allows automated construction of river network maps at any resolution. Automated construction of a river network map is helpful for attaching sub-grid topographic information, such as realistic river meanderings and drainage boundaries, onto the upscaled river network map. The advantages of the proposed method are expected to enhance the ability of global river routing models by providing ways to more precisely represent surface water storage and movement.
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