Search results for: Y. Haga

Items from 1 to 20 out of 194 results

article

Multilayered receive coil produced using a non-planar photofabrication process for an intraluminal magnetic resonance imaging

T. Matsunaga, Y. Matsuoka, S. Ichimura, Q. Wei, more

Sensors and Actuators A: Physical > 2017 > 261 > C > 130-139

An intraluminal probe coil is a promising signal detecting technique in magnetic resonance imaging (MRI) for small pathological lesions: it may allow acquisition of relatively high resolution images while maintaining similar signal-to-noise ratio (SNR) compared with external coils. In the present work, multilayered, saddle-shaped intraluminal coils with outer diameters of approximately 2mm were fabricated...

article

Validation of an assessment tool for predicting overall survival following gastric cancer resection

Y. Haga, S. Hato, M. Ikenaga, K. Yamamoto, more

European Journal of Cancer > 2017 > 72 > S1 > S72

article

Real-time supernova neutrino burst monitor at Super-Kamiokande

K. Abe, Y. Haga, Y. Hayato, M. Ikeda, more

Astroparticle Physics > 2016 > 81 > C > 39-48

We present a real-time supernova neutrino burst monitor at Super-Kamiokande (SK). Detecting supernova explosions by neutrinos in real time is crucial for giving a clear picture of the explosion mechanism. Since the neutrinos are expected to come earlier than light, a fast broadcasting of the detection may give astronomers a chance to make electromagnetic radiation observations of the explosions right...

article

Transgenic modification of the n‐3 HUFA biosynthetic pathway in nibe croaker larvae: improved DPA (docosapentaenoic acid; 22:5n‐3) production

N. Kabeya, Y. Takeuchi, R. Yazawa, Y. Haga, more

Aquaculture Nutrition > 22 > 2 > 472 - 478

Marine fish are generally unable to produce sufficient quantities of n‐3 highly unsaturated fatty acid (n‐3 HUFA) such as eicosapentaenoic acid (EPA; 20:5n‐3) and docosahexaenoic acid (DHA; 22:6n‐3). Consequently, the seed production of marine fish requires careful nutritional enrichment of live feeds such as rotifers and brine shrimp Artemia to meet n‐3 HUFA requirements for normal growth. Another...

chapter

Automatic scanning system for back-side defect of steel structure using magnetic flux leakage method

K. Sakai, K. Morita, Y. Haga, T. Kiwa, more

2015 IEEE Magnetics Conference (INTERMAG) > 1

INTERMAG 2015 - IEEE International Magnetics Conference

Non-destructive evaluation (NDE) of steel structures, such as bridge and heavy machine, is important issue to ensure their safety and reliability. However, the conventional NDE methods for these structures require long inspection time and high cost because inspections are generally performed manually. Moreover, the measurement in high-place work is also required for the inspection of huge steel structure...

article

Large reversible magnetocaloric effect in ferromagnetic semiconductor EuS

D.X. Li, T. Yamamura, S. Nimori, Y. Homma, more

Solid State Communications > 2014 > 193 > Complete > 6-10

We present the large reversible magnetocaloric effect (MCE) of the ferromagnetic semiconductor EuS, which shows a maximum magnetic entropy change of −ΔSmmax~37Jkg ⁻¹ K ⁻¹ , an adiabatic temperature change of ΔT _ad ~10.4K and a relative cooling power of RCP~782Jkg ⁻¹ at 18.5K for a magnetic field change ΔH=5T. Particularly, the large MCE is isotropic and without hysteresis...

article

Fermi surface, magnetic, and superconducting properties in actinide compounds

Yoshichika Ōnuki, Rikio Settai, Yoshinori Haga, Yo Machida, more

Comptes rendus - Physique > 2014 > 15 > 7 > 616-629

The de Haas–van Alphen effect, which is a powerful method to explore Fermi surface properties, has been observed in cerium, uranium, and nowadays even in neptunium and plutonium compounds. Here, we present the results of several studies concerning the Fermi surface properties of the heavy fermion superconductors UPt ₃ and NpPd ₅ Al ₂ , and of the ferromagnetic pressure-induced...

article

A note on the presence of B chromosome in the small Japanese field mouse, Apodemus argenteus, in central Honshu, Japan

Y. Haga, M. A. Iwasa

Russian Journal of Genetics > 2014 > 50 > 9 > 957-960

Previously, many studies have revealed the presence of B chromosomes in wild mouse taxa of the genus Apodemus (Rodentia, Muridae). In one of the Apodemus species, A. argenteus, which is endemic to Japan, it is known that B chromosomes were confirmed only in individuals (2n = 46 + B chromosome) from Hokkaido, Japan. There is no report of the presence of B chromosomes from other localities in the Japanese...

article

Studies on transcription initiated by cauliflower mosaic virus 35S promoter from transgenic crops using fish cell lines (HINAE, YO‐K, RTG‐2) and rainbow trout Oncorhynchus mykiss

R.E. Kitagima, Y. Haga, I. Hirono, M. Endo, more

Aquaculture Nutrition > 19 > s1 > 122 - 134

Cauliflower mosaic virus 35S promoter (CaMV 35S) used in transgenic crops has been suspected to be active in animal cells. This study examined transfection of constructs for expression of green fluorescent protein (GFP), including CaMV 35S. Cytomegalovirus (CMV) promoter and promoterless constructs were used as positive and negative control, respectively. These constructs were transfected to kidney...

article

Impact of dietary high protein distillers dried grains on amino acid utilization, growth response, nutritional health status and waste output in juvenile rainbow trout (Oncorhynchus mykiss)

N. Prachom, Y. Haga, S. Satoh

Aquaculture Nutrition > 19 > s1 > 62 - 71

High protein distillers dried grains (HPDDG) is a co‐product of ethanol production that uses prefractionation technology. A 14‐week nutrition trial of HPDDG with rainbow trout (Oncorhynchus mykiss: initial weight = 7.5–7.7 g fish⁻¹) was conducted to evaluate the effect of replacing corn gluten meal (CGM) with four levels of HPDDG (0, 50, 100 and 150 g kg⁻¹). HPDDG is higher in crude protein (481 g kg...

chapter

Measurement of subcutaneous biological substances using thin metal needle with micro flow channel

N. Tsuruoka, K. Ishii, T. Matsunaga, R. Nagatomi, more

2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) > 4478 - 4481

2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

Concentrations of biological substances are useful as indicators of physiological and pathological states. In order to monitor biological substances in daily life, we developed a minimally invasive needle type device with which biological substances are extracted through a microperfusion system inserted under the skin. The perfusion needle has a flow channel with perforated membrane through which...

article

P98 Antimicrobial susceptibility of Citrobacter koseri isolated from clinical specimen in western part of Japan

T. Muratani, T. Kobayashi, M. Honda, Y. Haga, more

International Journal of Antimicrobial Agents > 2013 > 42 > Supplement 2 > S72-S73

article

Tactile display using shape memory alloy micro-coil actuator and magnetic latch mechanism

T. Matsunaga, K. Totsu, M. Esashi, Y. Haga

Displays > 2013 > 34 > 2 > 89-94

A two-dimensional tactile display for visually impaired people was fabricated and successfully operated. Character and graphic information is dynamically displayed by an array of pins in up and down positions. The contraction of shape memory alloy (SMA) micro-coil actuators moves the pins up and down when the SMA actuator is heated by an electrical current. A tube fabricated from magnetic material...

article

P065 Acute crisis of adult T-cell leukaemia following soluble CD30 elevation: Shedding of CD30 and CD25 from cell surface associated with the aggressiveness

S. Takemoto, R. Pornkuna, N. Nishimura, Y. Inoue, more

Cytokine > 2012 > 59 > 3 > 539

Adult T-cell leukaemia/lymphoma (ATL) caused by human retrovirus, HTLV-1, is a neoplasm of mature T-cell. In Japan, more than a thousand patients with ATL die every year because this disease still remains incurable. Acute crisis is a common phenomenon of chronic leukaemia and indolent haematological malignancy, in which proliferation of leukaemic cells is accelerated following a certain term of chronic...

article

Partial replacement of fish meal with plant protein sources using organic acids to practical diets for juvenile yellowtail, Seriola quinqueradiata

M.S.A. SARKER, S. SATOH, K. KAMATA, Y. HAGA, more

Aquaculture Nutrition > 18 > 1 > 81 - 89

An experiment was conducted to investigate the effects of phosphorus (P), citric acid (CA) and formic acid (FA) supplementation on growth and loading of nitrogen (N) and phosphorus (P) in juvenile yellowtail fed fish meal (FM) and alternate plant protein (APP) diets. Six diets designated as F49 (490 g kg⁻¹ FM‐based), F49 + P (490 g kg⁻¹ FM with 5 g kg⁻¹ inorganic P), F31 + CA (310 g kg⁻¹ FM containing...

chapter

Development of minimally invasive microdialysis needle for continuous monitoring of biological substances

N. Tsuruoka, K. Ishii, T. Matsunaga, R. Nagatomi, more

2012 IEEE 25th International Conference on Micro Electro Mechanical Systems (MEMS) > 941 - 944

2012 IEEE 25th International Conference on Micro Electro Mechanical Systems (MEMS)

Concentrations of biological substances are useful as indicator of our health. In order to monitor biological substances, the minimally invasive device which does microdialysis in subepidermal tissue has been developed. Microdialysis needle has flow channel with dialysis membrane. It has been fabricated around a thin steel needle by our developed non-planer photofabrication process. Because this process...

article

Huge upper critical field in the superconductor with non-centrosymmetric crystal structure CeCoGe3

M.-A. Méasson, H. Muranaka, T.D. Matsuda, T. Kawai, more

Physica C: Superconductivity > 2010 > 470 > S1 > S536-S538

We report the upper critical field, H_c2, of the non-centrosymmetric compound CeCoGe₃ by resistivity measurements under high pressure of 7.1GPa, for H along c and a axis, and for a magnetic field up to 17T. H_c2 is very anisotropic, saturating at low temperature for H along the a axis and linear for H along the c axis. Very high H_c2(T) is observed for H along the c axis, with a huge value of the slope...

article

Exotic superconducting state embedded in the hidden order state of URu2Si2

Y. Matsuda, R. Okazaki, Y. Kasahara, H. Shishido, more

Physica C: Superconductivity > 2010 > 470 > 20 > 1013-1017

The heavy-fermion compound URu₂Si₂ has mystified researchers since the superconducting state (T_c=1.45K) is embedded within the enigmatic ‘‘hidden order” phase (T_h=17.5K). Here, we report charge and thermal transport measurements on ultraclean single crystals of URu₂Si₂ with very large residual-resistivity-ratio down to 30mK (∼T_c/50), which reveal a number of unprecedented superconducting properties...

article

Heavy fermion state and quantum criticality

Y. Ōnuki, R. Settai, F. Honda, N.D. Dung, more

Physica B: Physics of Condensed Matter > 2010 > 405 > 9 > 2194-2199

The heavy fermion state in the f-electron systems is due to competition between the RKKY interaction and the Kondo effect. The typical compound is CeCu ₆ . To understand the electronic state, we studied the Fermi surface properties via the de Haas-van Alphen (dHvA) experiments and energy band calculations for CeSn ₃ , CeRu ₂ Si ₂ , UPt ₃ , and nowadays, transuranium...

article

Visualization of skeletons and intervertebral disks in live fish larvae by fluorescent calcein staining and disk specific GFP expression

Y. Haga, S. J. Du, S. Masui, Y. Fujinami, more

Journal of Applied Ichthyology > 26 > 2 > 268 - 273

Zebrafish and medaka have become popular models for studying skeletal development because of high fecundity, shorter generation period, and transparency of fish embryo. The first step to study skeletal development is visualizing bone and cartilage. Live animal staining with fluorescent calcein have several advantages over the standard skeletal staining protocol by using alizarin red and alcian blue...

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INFONA - science communication portal

Search results for: Y. Haga

Multilayered receive coil produced using a non-planar photofabrication process for an intraluminal magnetic resonance imaging

Validation of an assessment tool for predicting overall survival following gastric cancer resection

Real-time supernova neutrino burst monitor at Super-Kamiokande

Transgenic modification of the n‐3 HUFA biosynthetic pathway in nibe croaker larvae: improved DPA (docosapentaenoic acid; 22:5n‐3) production

Automatic scanning system for back-side defect of steel structure using magnetic flux leakage method

Large reversible magnetocaloric effect in ferromagnetic semiconductor EuS

Fermi surface, magnetic, and superconducting properties in actinide compounds

A note on the presence of B chromosome in the small Japanese field mouse, Apodemus argenteus, in central Honshu, Japan

Studies on transcription initiated by cauliflower mosaic virus 35S promoter from transgenic crops using fish cell lines (HINAE, YO‐K, RTG‐2) and rainbow trout Oncorhynchus mykiss

Impact of dietary high protein distillers dried grains on amino acid utilization, growth response, nutritional health status and waste output in juvenile rainbow trout (Oncorhynchus mykiss)

Measurement of subcutaneous biological substances using thin metal needle with micro flow channel

P98 Antimicrobial susceptibility of Citrobacter koseri isolated from clinical specimen in western part of Japan

Tactile display using shape memory alloy micro-coil actuator and magnetic latch mechanism

P065 Acute crisis of adult T-cell leukaemia following soluble CD30 elevation: Shedding of CD30 and CD25 from cell surface associated with the aggressiveness

Partial replacement of fish meal with plant protein sources using organic acids to practical diets for juvenile yellowtail, Seriola quinqueradiata

Development of minimally invasive microdialysis needle for continuous monitoring of biological substances

Huge upper critical field in the superconductor with non-centrosymmetric crystal structure CeCoGe3

Exotic superconducting state embedded in the hidden order state of URu2Si2

Heavy fermion state and quantum criticality

Visualization of skeletons and intervertebral disks in live fish larvae by fluorescent calcein staining and disk specific GFP expression

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