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Development of the Portable Two-Wheeled Inverted Pendulum Type Personal Vehicle
Hiroki Hata,Takashi Takimoto 제어로봇시스템학회 2014 제어로봇시스템학회 국제학술대회 논문집 Vol.2014 No.10
Some inverted pendulum type personal mobility devices, including the Segway have already been invented. However, they cannot go over the obstacles such as stairs or curbs on the road. In order to resolve this problem, we have developed a portable personal vehicle. It looks like a skateboard or snowboard. It is light and small enough to carry in comparison with others. It is maneuvered by detecting the vehicle’s angle with the accelerometer and the gyroscope. When an operator applies the body weight onto a front foot plate, the vehicle leans to the front and its angle is detected, then the vehicle goes forward. Although some of the same type of vehicles have already been developed, the different point of our development vehicle is that it has two wheels on one axle. It makes our vehicle possible to spin in place or to turn tightly. Additionally, because it doesn’t have a handlebar, we can drive it without hands.
Hiroki Sato,Yusuke Fujiyoshi,Hirofumi Abe,Hironari Shiwaku,Junya Shiota,Chiaki Sato,Hiroyuki Sakae,Masaki Ominami,Yoshitaka Hata,Hisashi Fukuda,Ryo Ogawa,Jun Nakamura,Tetsuya Tatsuta,Yuichiro Ikebuchi 대한소화기 기능성질환∙운동학회 2022 Journal of Neurogastroenterology and Motility (JNM Vol.28 No.2
Background/AimsPatients with achalasia-related esophageal motility disorders (AEMDs) frequently present with dilated and sigmoid esophagus, and develop esophageal diverticulum (ED), although the prevalence and patients characteristics require further elucidation. MethodsWe conducted a multicenter cohort study of 3707 patients with AEMDs from 14 facilities in Japan. Esophagography on 3682 patients were analyzed. ResultsStraight (n = 2798), sigmoid (n = 684), and advanced sigmoid esophagus (n = 200) were diagnosed. Multivariate analysis revealed that long disease duration, advanced age, obesity, and type I achalasia correlate positively, whereas severe symptoms and integrated relaxation pressure correlate negatively with development of sigmoid esophagus. In contrast, Grade II dilation (3.5-6.0 cm) was the most common (52.9%), while grade III dilation (≥ 6 cm) was rare (5.0%). We found early onset, male, obesity, and type I achalasia correlated positively, while advanced age correlated negatively with esophageal dilation. Dilated and sigmoid esophagus were found mostly in types I and II achalasia, but typically not found in spastic disorders. The prevalence of ED was low (n = 63, 1.7%), and non-dilated esophagus and advanced age correlated with ED development. Patients with right-sided ED (n = 35) had a long disease duration (P = 0.005) with low integrated relaxation pressure values (P = 0.008) compared with patients with left-sided ED (n = 22). Patients with multiple EDs (n = 6) had lower symptom severity than patients with a single ED (P = 0.022). ConclusionsThe etiologies of dilated esophagus, sigmoid esophagus, and ED are considered multifactorial and different. Early diagnosis and optimal treatment of AEMDs are necessary to prevent these conditions.
( Toshihiko Hata ),( Ken Ueda ),( Hiroshi Maruyama ),( Toshiki Takaya ),( Hiroshi Kuraishi ),( Kenji Maeda ),( Hiroki Tomita ) 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1
Background: In super acute phase after the Great East Japan Earthquake (11 March 2011), Disaster medical association team (DMAT) consisted of emergency physicians acted in disaster areas in the East Coast of Japan. On the other hand, these areas needed chronic care support by general physicians because of the enormous destructions of the medical facilities by the tsunami. So then, the Japanese Red Cross Society had sent disaster emergency outpatient assistance doctors to Isinomaki Red Cross Hospital, was intact because it was moved away from the Pacifi c Ocean three years ago. Methods: Determination of specialism by direct hearing and information from home page of each Red Cross Hospitals. Results: Cumulative 81 medical doctors were 38 internal medicine physicians, trainees 15, emergency physicians 12, surgeon 6, pediatrician 3, orthopedic surgeon 3, anesthesiologist 2, obstetrician 2, from April to August 2011. At fi rst 6 dispatched doctors were resident and did emergency outpatient work in Ishinomaki Red Cross Hospital for 6 days and dipatched. A lot of Cases of pneumonia and bronchial asthma due to debris and rubble by Tsunami were seen. All dispatch doctors corresponded to primary surgery including fractures and trauma, pediatric diseases, and posttraumatic stress disorder due to earthquake itself, tsunami damage, and radiation problem of Fukushima. Conclusions: The role of general physicians is very important in chronic phase of disaster medical assistance. Medical facilities in the area with many earthquakes should be moved apart from the sea in order to avoid the damage of tsunami.
( Toshihiko Hata ),( Hiroyuki Sato ),( Ako Machino ),( Mai Wakabayashi ),( Morito Kise ),( Hiroki Ohashi ),( Daisuke Yamashita ),( Kaoru Sakural ),( Toru Matsubayashi ),( Masahiko Hatao ),( Ken Ueda ) 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1
31yrs. old female known to have hypertension and dyslipidemia for 1 yr.presented with h/o weight loss around 10 kg for 1 yr,palpiations,diaphoresis and hypertensive urgencyBp 210/110 mmhg)and also found to have diabetes (newly diagnosed)further investigations shows large adrenal mass (left side)suspicion of phaechromocytoma and urine catecholamoines was high, urology was consulted and she underwent left adrenalectomy and biopsy confi rm the diagnosis of malignant phaechromcytoma. Repeat Urine catecholamines which was quite high on presentation later normalized after surgey. Now she is under active follow up with endocrinologist and on antihypertensive medications very minimal doses and for her diabetes she is not on any medications as well after surgery.
Tetsuya Tatsuta,Hiroki Sato,Yusuke Fujiyoshi,Hirofumi Abe,Akio Shiwaku,Junya Shiota,Chiaki Sato,Masaki Ominami,Yoshitaka Hata,Hisashi Fukuda,Ryo Ogawa,Jun Nakamura,Yuichiro Ikebuchi,Hiroshi Yokomichi 대한소화기 기능성질환∙운동학회 2022 Journal of Neurogastroenterology and Motility (JNM Vol.28 No.4
Background/Aims ManoScan and Sandhill high-resolution manometry (HRM) systems are used worldwide; however, the diagnosis of achalasia on the Starlet HRM system is not fully characterized. Furthermore, the impact of calcium channel blockers and nitrites in treating achalasia has not been investigated using HRM. Management of recurrent cases is a priority issue, although few studies have examined patient characteristics. Methods We conducted a multicenter, large-scale database analysis. First, the diagnosis of treatment-naive achalasia in each HRM system was investigated. Next, patient characteristics were compared between type I-III achalasia, and the impact of patient characteristics, including calcium channel blocker and nitrite use for integrated relaxation pressure (IRP) values, were analyzed. Finally, patient characteristics with recurrent achalasia were elucidated. Results The frequency of type I achalasia with Starlet was significantly higher than that with ManoScan and Sandhill HRM systems. In achalasia, multivariate analysis identified male sex, advanced age, long disease duration, obesity, type I achalasia, and sigmoid type as risk factors related to normal IRP values (< 26 mmHg). Calcium channel blockers and nitrites use had no significant impact on the IRP values, although achalasia symptoms were indicated to be alleviated. In recurrent cases, the IRP value was significantly lower, and advanced age, long disease duration, and sigmoid type were more common than in treatment-naive patients. Conclusions We should cautiously interpret the type of achalasia and IRP values in the Starlet HRM system. Symptoms of recurrent cases are related to disease progression rather than IRP values, which should be considered in decision making.
Soichiro Nakamura,Masahiro Ogawa,Hiroki Saeki,Masayoshi Saito,Satoko Miyasaka,Junya Hata,Naoko Adachi,Jae-Kwan Hwang 한국식품영양과학회 2000 Preventive Nutrition and Food Science Vol.5 No.4
Protein conjugation of curdlan belonging to β-1,3-glucan was carried out to improve its surface functionalities. The glucan was mixed with phosvitin, α_s-casein, lysozyme or ovalbumin, respectively. The mixture was freeze-dried, and the resulting powder was incubated at 60℃ and 79% relative humidity for 12 days in order to generate a controlled Maillard reaction between curdlan and proteins. Conjugation with unfolding proteins, i.e., phosvitin and α_s-casein, drastically increased the solubility of the glucan, whereas lysozyme and ovalbumin did not. The solubility in water of curdlan was 3.44% for the phosvitin conjugate and 1.09% for the α_s-casein conjugate. SDS-slab polyacrylamide gel electrophoresis showed that curdlan was solubilized due to covalent binding with phosvitin. Emulsifying properties of curdlan were substantially improved by the conjugation with phosvitin and α_s-casein. Emulsion stability of the curdlan-phosvitin conjugate was about 2.9 times greater than that of the curdlan-phosvitin mixture.
Nakamura, Soichiro,Dokai, Kazumi,Matsuura, Megumi,Hata, Junya,Saeki, Hiroki The Korean Society of Food Science and Nutrition 2002 Preventive Nutrition and Food Science Vol.7 No.2
Hen egg-white lysozyme, ovalbumin, egg-yolk phosvitin, acid-precipitated soy protein and $\alpha$$_{sl}$ milk casein were covalently linked with galactomannan through a controlled dry-heating at 6$0^{\circ}C$ under 79% relative humidity without any chemical reagent. Neoglycosylation by the covalent binding of polysaccharide chains brought a significant improvement into the surface functionalities of food proteins. Excellent emulsifying properties and foaming properties were observed in all protein-galactomannan conjugates. Bacterial mutagenesis tests and animal dose test were done to evaluate the food safety of the protein-galactomannan conjugates. The neo-glycoproteins were negative for Ames test using Salmonella typhimurium TA100 (hisG46) and TA98 (hisD3052) strains, and rec-assay using Bacillus subtilis Hl7 (rec) and M45 (re $c^{+}$) strains. All substances were also nontoxic for oral administration to rats. L $D_{50}$ 's of these substances were all more than 7.5 g/kg body-weight of rat. No effect was also observed in the weight increases and the concentrations of total cholesterol, triglyceride and phospholipids in blood serum of the administrated rats with 7.5 g/kg conjugates. Thus, Maillard-type protein-polysaccharide conjugates prepared by covalent attachment of galactomannan to food proteins were proposed to be useful as a safe functional biopolymer in this study.y.
Nakamura, Soichiro,Ogawa, Masahiro,Saeki, Hiroki,Saito, Masayoshi,Miyasaka, Satoko,Hata, Junya,Adachi, Naoko,Hwang, Jae-Kwan The Korean Society of Food Science and Nutrition 2000 Preventive Nutrition and Food Science Vol.5 No.4
Protein conjugation of curdlan belonging to $\beta$-1, 3-glucan was carried out to improve it surface functionalities. The glucan was mixed with phosvitin, {TEX}$$\alpha$_{s}${/TEX}-casein, lysozyme or ovalbumin, respectively. The mixture was freeze-dried, and he resulting powder was incubated at 6$0^{\circ}C$ and 79% relative humidity for 12 days in order to generate a controlled Maillard reaction between curdlan and proteins. conjugation with unfolding proteins, i.e., phosvitin and {TEX}$$\alpha$_{s}${/TEX}-casein, drastically increased the solubility of the glucan, whereas lysozyme and ovalbmin did not. The solubility in water of curdlan was 3.44% for the phosvitin conjugate and 1.09% for the {TEX}$$\alpha$_{s}${/TEX}-casein conjugate. SDS-slab polyacrylamide gel electrophoresis showed that curdlan was solubilized due to covalent binding with phosvitin. Emulsifying properties of curdlan were substantially improved by the conjugation with phosvitin and {TEX}$$\alpha$_{s}${/TEX}-casein. Emulsion stability of the curdlan-phosvitin conjugate was about 2.9 times greater than that of the curdlan-phosvitin mixture.
Soichiro Nakamura,Kazumi Dokai,Megumi Matsuura,Junya Hata,Hiroki Saeki 한국식품영양과학회 2002 Preventive Nutrition and Food Science Vol.7 No.2
Hen egg-white lysozyme, ovalbumin, egg-yolk phosvitin, acid-precipitated soy protein, αs1 milk casein were covalently linked with galactomannan through a controlled dry-heating at 60℃ under 79% relative humidity without any chemical reagent. Neoglycosylation by the covalent binding of polysaccharide chains brought a significant improvement into the surface functionalities of food proteins. Excellent emulsifying properties, foaming properties were observed in all protein-galactomannan conjugates. Bacterial mutagenesis tests, animal dose test were done to evaluate the food safety of the protein-galactomannan conjugates. The neoglycoproteins were negative for Ames test using Salmonella typhimurium TA100 (hisG46), TA98 (hisD3052) strains,, rec-assay using Bacillus subtilis H17 (rec^-), M45 (rec^+) strains. All substances were also nontoxic for oral administration to rats. LD_(50)’s of these substances were all more than 7.5 g/kg body-weight of rat. No effect was also observed in the weight increases, the concentrations of total cholesterol, triglyceride, phospholipids in blood serum of the administrated rats with 7.5 g/kg conjugates. Thus, Maillard-type proteinpolysaccharide conjugates prepared by covalent attachment of galactomannan to food proteins were proposed to be useful as a safe functional biopolymer in this study.
( Eiji Yamada ),( Hidenori Ohkubo ),( Takuma Higurashi ),( Eiji Sakai ),( Hiroki Endo ),( Hirokazu Takahashi ),( Eri Uchida ),( Emi Tanida ),( Nobuyoshi Izumi ),( Akira Kanesaki ),( Yasuo Hata ),( Tet The Editorial Office of Gut and Liver 2013 Gut and Liver Vol.7 No.5
Background/Aims: Left-sided diverticulitis is increasing in Japan, and many studies report that left-sided diverticulitis is more likely to be severe. Therefore, it is important to identify the features and risk factors for left-sided diverticulitis. We hypothesized that left-sided diverticulitis in Japan is related to obesity and conducted a study of the features and risk factors for this disorder in Japan. Methods: Right-sided di-verticulitis and left-sided diverticulitis patients (total of 215) were compared with respect to background, particularly obesity-related factors to identify risk factors for diverticulitis. Results: There were 166 (77.2%) right-sided diverticulitis patients and 49 (22.8%) left-sided diverticulitis patients. The proportions of obese patients (body mass index ≥25 kg/m2, p=0.0349), viscerally obese patients (visceral fat area ≥100 cm2, p=0.0019), patients of mean age (p=0.0003), and el-derly patients (age ≥65 years, p=0.0177) were significantly higher in the left-sided-diverticulitis group than in the right-sided-diverticulitis group. The proportion of viscerally obese patients was significantly higher in the left-sided-diverticulitis group than in the left-sided-diverticulosis group (p=0.0390). Conclusions: This study showed that obesity, particularly visceral obesity, was a risk factor for left-sided diverticulitis in Japan. (Gut Liver 2013;7:532-538)