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Search Results: 1 - 10 of 727 matches for " Yuko Morito "
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Development of a Coil-Shape Photocatalysis-Plasma Synergistic Reactor for a Practical and Long-Term Usable Air-Cleaner  [PDF]
Tsuyoshi Ochiai, Yuji Hayashi, Erina Ichihashi, Tadashi Machida, Yoshitsugu Uchida, Shoko Tago, Yuko Morito, Akira Fujishima
American Journal of Analytical Chemistry (AJAC) , 2014, DOI: 10.4236/ajac.2014.58055
Abstract: A novel air-cleaner with a coil-shape photocatalysis-plasma synergistic reactor was developed. The air-cleaner showed 95% ± 1% reduction of a TVOCs concentration in tobacco smoke at “single-pass” condition. Air-purification activity of the air-cleaner was stably-maintained after the treatment of 12,000 cigarettes of tobacco smoke.
Human Sclera Maintains Common Characteristics with Cartilage throughout Evolution
Yuko Seko, Noriyuki Azuma, Yoriko Takahashi, Hatsune Makino, Toshiyuki Morito, Takeshi Muneta, Kenji Matsumoto, Hirohisa Saito, Ichiro Sekiya, Akihiro Umezawa
PLOS ONE , 2008, DOI: 10.1371/journal.pone.0003709
Abstract: Background The sclera maintains and protects the eye ball, which receives visual inputs. Although the sclera does not contribute significantly to visual perception, scleral diseases such as refractory scleritis, scleral perforation and pathological myopia are considered incurable or difficult to cure. The aim of this study is to identify characteristics of the human sclera as one of the connective tissues derived from the neural crest and mesoderm. Methodology/Principal Findings We have demonstrated microarray data of cultured human infant scleral cells. Hierarchical clustering was performed to group scleral cells and other mesenchymal cells into subcategories. Hierarchical clustering analysis showed similarity between scleral cells and auricular cartilage-derived cells. Cultured micromasses of scleral cells exposed to TGF-βs and BMP2 produced an abundant matrix. The expression of cartilage-associated genes, such as Indian hedge hog, type X collagen, and MMP13, was up-regulated within 3 weeks in vitro. These results suggest that human ‘sclera’-derived cells can be considered chondrocytes when cultured ex vivo. Conclusions/Significance Our present study shows a chondrogenic potential of human sclera. Interestingly, the sclera of certain vertebrates, such as birds and fish, is composed of hyaline cartilage. Although the human sclera is not a cartilaginous tissue, the human sclera maintains chondrogenic potential throughout evolution. In addition, our findings directly explain an enigma that the sclera and the joint cartilage are common targets of inflammatory cells in rheumatic arthritis. The present global gene expression database will contribute to the clarification of the pathogenesis of developmental diseases such as high myopia.
Synergistic Water-Treatment Reactors Using a TiO2-Modified Ti-Mesh Filter
Tsuyoshi Ochiai,Ken Masuko,Shoko Tago,Ryuichi Nakano,Kazuya Nakata,Masayuki Hara,Yasuhiro Nojima,Tomonori Suzuki,Masahiko Ikekita,Yuko Morito,Akira Fujishima
Water , 2013, DOI: 10.3390/w5031101
Abstract: The recent applications of a TiO 2-modified Ti-mesh filter (TMiP?) for water purification are summarized with newly collected data including biological assays as well as sewage water treatment. The water purification reactors consist of the combination of a TMiP, a UV lamp, an excimer VUV lamp, and an ozonation unit. The water purification abilities of the reactor were evaluated by decomposition of organic contaminants, inactivation of waterborne pathogens, and treatment efficiency for sewage water. The UV-C/TMiP/O 3 reactor disinfected E. coli in aqueous suspension in approximately 1 min completely, and also decreased the number of E. coli in sewage water in 15 min dramatically. The observed rate constants of 7.5 L/min and 1.3 L/min were calculated by pseudo-first-order kinetic analysis respectively. Although organic substances in sewage water were supposed to prevent the UV-C/TMiP/O 3 reactor from purifying water, the reactor reduced E. coli in sewage water continuously. On the other hand, although much higher efficiencies for decomposition of organic pollutants in water were achieved in the excimer/TMiP reactor, the disinfection activity of the reactor for waterborne pathogens was not as effective as the other reactors. The difference of efficiency between organic pollutants and waterborne pathogens in the excimer/TMiP reactor may be due to the size, the structure, and the decomposition mechanism of the organic pollutants and waterborne pathogens. These results show that a suitable system assisted by synergy of photocatalysts and other technologies such as ozonation has a huge potential as a practical wastewater purification system.
Lifestyle Adjustment Process to Maintain Family Life for Mothers with Children Who Need Home Medical Care  [PDF]
Yuko Nakakita, Yuko Tomari
Health (Health) , 2018, DOI: 10.4236/health.2018.1012127
Abstract: This aim is to clarify lifestyle adjustment process to maintain family life for mothers with children who need home medical care. We conducted semi-structured interviews with the mothers of children who required home medical care comprising procedures such as suction of sputum and respiratory management over a period of several years since the initiation of home medical care, and analyzed the results using the modified grounded theory approach (M-GTA). We found the process to be composed of nine categories. Immediately after their child who required home medical care began living at home, mothers were concerned about the protection of their unstable child and, therefore, made care of the child a priority. However, they gradually started experiencing the need to engage services for the child in the course of their daily lives and live their lives with assistance. In the course of this new lifestyle, mothers began to regulate their fluctuating feelings and discover a new lifestyle for the family by making the father’s role clear and having him take on some responsibilities, such as dealing with people outside the household. As a result, once making home medical care consistent with the family’s lifestyle, even if this care was not at the same level as that provided while the child was hospitalized, mothers felt they found a way that allowed them to spend time with their other children. In addition, they began to perceive the necessity of maintaining their health, which is crucial to the child’s care. Overall, this facilitated incorporation of prospects for the family’s future life because they tended to pay more attention to their health and the health of their other children. Further, this contributed in coordination of the selection of services that would benefit the entire family, thereby maintaining the family’s lifestyle.
Relationship between Family Care and Public Care Services for the Elderly  [PDF]
Yuko Mihara
Modern Economy (ME) , 2015, DOI: 10.4236/me.2015.69089
Abstract: Japan has been experiencing significant changes in its demographics. This study examines the effects of public care services and in doing so, aims to show that it is possible to improve overall welfare level by substituting family care with public care services, particularly when family care and public care services are interchangeable. In addition, we show that instead of reducing family care to zero, further expanding public care services can help achieve welfare optimization.
Stochastic Programming Model for Discrete Lotsizing and Scheduling Problem on Parallel Machines  [PDF]
Kensuke Ishiwata, Jun Imaizumi, Takayuki Shiina, Susumu Morito
American Journal of Operations Research (AJOR) , 2012, DOI: 10.4236/ajor.2012.23045
Abstract: In recent years, it has been difficult for manufactures and suppliers to forecast demand from a market for a given product precisely. Therefore, it has become important for them to cope with fluctuations in demand. From this viewpoint, the problem of planning or scheduling in production systems can be regarded as a mathematical problem with stochastic elements. However, in many previous studies, such problems are formulated without stochastic factors, treating stochastic elements as deterministic variables or parameters. Stochastic programming incorporates such factors into the mathematical formulation. In the present paper, we consider a multi-product, discrete, lotsizing and scheduling problem on parallel machines with stochastic demands. Under certain assumptions, this problem can be formulated as a stochastic integer programming problem. We attempt to solve this problem by a scenario aggregation method proposed by Rockafellar and Wets. The results from computational experiments suggest that our approach is able to solve large-scale problems, and that, under the condition of uncertainty, incorporating stochastic elements into the model gives better results than formulating the problem as a deterministic model.
Risperidone Versus Yokukansan in the Treatment of Severe Alzheimer’s Disease  [PDF]
Yuko Furuhashi, Kouichi Shin
International Journal of Clinical Medicine (IJCM) , 2011, DOI: 10.4236/ijcm.2011.22028
Abstract: PURPOSE: Patients with AD commonly exhibit behavioral and psychological symptoms of dementia (BPSD). This study is aimed to compare the efficacy of yokukansan (YKS) and risperidone (RIS) on BPSD in patients with severe Alzheimer’s disease (AD). METHODS: Thirty eight inpatients with AD were investigated. Patients were randomly as-signed to the YKS group (N = 18) or the RIS group (N = 20) and treated for 4 weeks. The primary outcomes were changes in the scores on the Neuropsychiatric Inventory (NPI), the Mini-Mental State Examination (MMSE), the Bar-thel Index, and the Cohen-Mansfield Agitation Inventory (CMAI). The frequency of extrapyramidal symptoms (EPS) and other adverse events were recorded at every visit. RESULTS: All participants in both groups completed the trial. The Barthel Index did not significantly change either in the RIS group or the YKS group. The MMSE scores did not change either in the RIS group or the YKS group. Significant improvements in mean total NPI and CMAI scores showed in both groups. Between the YKS and the RIS groups, there were no significant differences in the NPI or the CMAI scores. EPS and other serious adverse effects were not observed in either group. CONCLUSIONS: In this 4-week trial, YKS treatment significantly improved BPSD in the patients with severe AD. The present study suggests that YKS is as effective as RIS on BPSD with severe AD.
Acute Normalization of Thyroxine Induced Hallucinations and Delusions  [PDF]
Yuko Furuhashi, Masaya Ishikawa
International Journal of Clinical Medicine (IJCM) , 2012, DOI: 10.4236/ijcm.2012.35066
Abstract: The association between disorders of thyroid function and psychiatric symptoms is well established. Generally, hypo-thyroidism is recognized as being able to induce psychotic symptoms. However, psychotic symptoms without affective and cognitive disturbances are rare in hyperthyroidism. We presented a patient with Graves’ disease who suffered from delusions and hallucinations without affective and cognitive disturbances following abrupt normalization of thyroid function. Furthermore, the patient was clinically and biochemically euthyroid when the psychotic symptoms developed. There was resolution of psychotic symptoms in this case. It is suggested that the abrupt change of thyroxine may cause susceptible individuals to become transient psychotic state.
Photobiont Flexibility in Paramecium bursaria: Double and Triple Photobiont Co-Habitation  [PDF]
Ryo Hoshina, Yuko Fujiwara
Advances in Microbiology (AiM) , 2012, DOI: 10.4236/aim.2012.23027
Abstract: The green ciliate, Paramecium bursaria, has evolved a mutualistic relationship with endosymbiotic green algae (photobionts). Under culture conditions, photobionts are usually unified (to be single species) within each P. bursaria strain. In most cases, the algal partners are restricted to either Chlorella variabilis or Micractinium reisseri (Chlorellaceae, Trebouxiophyceae). Both species are characterized by particular physiology and atypical group I intron insertions, although they are morphologically indistinguishable from each other or from other Chlorella-related species. Both algae are exclusive species that are viable only within P. bursaria cells, and therefore their symbiotic relationship can be considered persistent. In a few cases, the other algal species have been reported as P. bursaria photobionts. Namely, P. bursaria have occasionally replaced their photobiont partner. This paper introduces some P. bursaria strains that maintain more than one species of algae for a long period. This situation prompts speculations about flexibility of host-photo-biont relationships, how P. bursaria replaced these photobionts, and the infection theory of the group I introns.
Expression and Localization of NANOS1 in Spermatogenic Cells during Spermatogenesis in Rat  [PDF]
Sadaki Yokota, Yuko Onohara
CellBio (CellBio) , 2013, DOI: 10.4236/cellbio.2013.21001

Expression and localization of NANOS1 in the spermatogenic cells of rat testis were studied by immunofluorescence and immunoelectron microscopy. Using immunofluorescence techniques, NANOS1 was localized in the cytoplasm and discrete granules of spermatocytes and spermatids. The staining intensity of NANOS1 signal varied depending upon the stage of the cycle of seminiferous epithelium. Double immunofluorescence staining with antibodies against NANOS1 and DDX4 showed that several DDX4-positive compartments of nuage were also stained for NONOS1. Immunoelectron microscopy revealed that the major subcellular localization sites for NANOS1 were the chromatoid body (CB) and satellite body (SB), and the minor sites were the rest of the nuage compartments, including the irregularly-shaped perinuclear granules (ISPG), and intermitochondrial cement (IMC). Non-nuage structures such as mitochondria-associated granules (MAG), granulated body (GB), and reticulated body (RB) were also labeled by theNANOS1 antibody. In addition, NANOS1 was found in the outer dense fibers of flagella of spermatids at steps 12-19, and in the head cap of late spermatids after step 15. These results suggest that NANOS1 is one of the nuage proteins and functions mainly in the CBs as well as in the cytoplasm. NANOS1 may also have additional functions in non-nuage structures such as MAGs, GBs and RBs.

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