Search Results - (Author, Cooperation:T. Shima)

2018-01-31

American Physical Society (APS)

0556-2813

1089-490X

Physics

Nuclear Reactions

2013-07-03

American Association for the Advancement of Science (AAAS)

0036-8075

1095-9203

Biology

Chemistry and Pharmacology

Computer Science

Medicine

Natural Sciences in General

Physics

Catalysis ; Crystallography, X-Ray ; Hydrogenation ; Magnetic Resonance Spectroscopy ; Nitrogen/*chemistry ; Titanium/*chemistry

2011-01-06

American Association for the Advancement of Science (AAAS)

0036-8075

1095-9203

Biology

Chemistry and Pharmacology

Computer Science

Medicine

Natural Sciences in General

Physics

Animals ; Anti-Bacterial Agents/pharmacology ; Cecum/microbiology ; Cells, Cultured ; Clostridium/growth & development/*immunology ; Colitis/immunology/pathology/prevention & control ; Colon/*immunology/metabolism/*microbiology ; Feces/microbiology ; Forkhead Transcription Factors/metabolism ; Germ-Free Life ; Immunity, Innate ; Immunoglobulin E/biosynthesis ; Interleukin-10/immunology/metabolism ; Intestinal Mucosa/*immunology/metabolism ; Intestine, Small/immunology ; Metagenome ; Mice ; Mice, Inbred A ; Mice, Inbred BALB C ; Receptors, Pattern Recognition/physiology ; Specific Pathogen-Free Organisms ; T-Lymphocytes, Helper-Inducer/immunology ; T-Lymphocytes, Regulatory/*immunology/metabolism ; Transforming Growth Factor beta/metabolism

2012-03-09

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

Adenosine Diphosphate/metabolism ; Adenosine Triphosphate/metabolism ; Allosteric Regulation ; Binding Sites ; Crystallography, X-Ray ; Cytoplasmic Dyneins/*chemistry/metabolism ; Dictyostelium/*chemistry ; Hydrolysis ; Microtubules/metabolism ; Models, Biological ; Models, Molecular ; Movement ; Protein Structure, Tertiary ; Structure-Activity Relationship

2014-08-29

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

2018-11-17

American Physical Society (APS)

0556-2813

1089-490X

Physics

Nuclear Structure

1089-7550

AIP Digital Archive

Physics

Structure and magnetic properties of Fe–Cu–Nb–Si–B alloy single and multilayer films produced by rf sputtering have been investigated. The 1-μm-thick single films are of an amorphous phase in the as-sputter-deposited state and are crystallized into a mainly bcc phase with fine grains of nanometer size, as are melt-quenched ribbons with the same composition. The crystallization behavior and the Curie temperature of these single films are also similar to those of the ribbons. The crystallization-induced bcc phase possesses a high saturation magnetization of 1.3 T and good soft magnetic properties. For improving permeability at high frequency, an attempt has been made to multilayer the Fe–Cu–Nb–Si–B alloy with nonmagnetic materials such as SiO2. It has been found that Fe75.6Cu0.8Nb1.9Si13.2B8.5(500 nm)/SiO2(5 nm) multilayer films annealed at 500 °C for 1 h also consist of bcc fine crystallites and exhibit permeability as high as 7000 at 1 MHz and low coercivity of about 0.08 Oe.

Electronic Resource

1077-3118

AIP Digital Archive

Physics

The magnetization processes of highly ordered FePt(001) films with large perpendicular magnetic anisotropy have been studied. The film morphology was controlled from isolated particles to continuous film by varying the nominal thickness (tN) of the FePt film sputter deposited directly on a MgO(001) substrate at an elevated temperature. A drastic change in the coercivity by one order of magnitude has been found at the critical thickness (tN=45 nm) where the film morphology changes from a particulate to a continuous state. A huge coercivity exceeding 40 kOe has been achieved in the film with tN=10 nm, which comprises single domain particles with an average lateral size of approximately 50 nm. © 2002 American Institute of Physics.

Electronic Resource

1077-3118

AIP Digital Archive

Physics

L10 ordered FePt alloy films with large magnetic anisotropy have been successfully prepared by alternating Fe(001) and Pt(001) monatomic layers on MgO (001) substrates at low temperatures below 230 °C. In addition to the fundamental (002) peak, (001) and (003) superlattice peaks have clearly been observed in the x-ray diffraction patterns for all the samples, indicating the formation of L10 ordered structure. The magnetization measurements show that all the samples are perpendicularly magnetized. Large uniaxial magnetic anisotropy (Ku=3.0×107 erg/cc) and high chemical ordering (long-range order parameter S=0.7±0.1) have been obtained even at the substrate temperature Ts=200 °C. The magnetization curves show good magnetic squareness (Mr/Ms∼0.9) for the samples grown at Ts≥160 °C. © 2002 American Institute of Physics.

Electronic Resource

1077-3118

AIP Digital Archive

Physics

Highly anisotropic Nd2Fe14B thin film has been produced by triggering crystallization of sputter-deposited amorphous Nd–Fe–B layer by deposition of crystalline Cr overlayer. A downward growth of strongly textured Nd2Fe14B columnar grains was observed, starting from the interface between the Nd–Fe–B amorphous layer and the Cr overlayer. Cross-sectional transmission electron microscope observation results suggest that the possible mechanism of this peculiar crystallization is the heterogeneous nucleation at the surface of Nd–Fe–B amorphous layer, triggered by the crystalline Cr overlayer. © 2001 American Institute of Physics.

Electronic Resource

1365-2044

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Electronic Resource

1365-2109

Blackwell Publishing Journal Backfiles 1879-2005

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Two feeding experiments were conducted to evaluate the ability of rainbow trout, Oncorhynchus mykiss (Walbaum), to discriminate the sufficiency of a single essential amino acid in diets using self-feeders. In experiment 1, 12 groups of 23–24 fish (initial weight; 25.3 ± 0.5 g) were acclimated to a casein-based low protein diet (crude protein, CP = 10%) for 2 weeks. They were then offered for 32 days a combination of two wheat gluten-based diets fortified by crystalline amino acids (CP = 40%), with a complete amino acid composition (complete) and a composition deficient in either methionine (Met-def) or lysine (Lys-def) (six groups per treatment). In the complete and Met-def diet selection groups, no specific preference for either of the diets was observed. However, in the complete and Lys-def diets selection groups, a preference for the complete diet increased gradually (P 〈 0.05, for the last 8-day period). In experiment 2, 12 groups of 21–22 fish (initial weight; 27.6 ± 0.5 g) were acclimated to a casein-based high protein diet (CP = 40%) for 2 weeks, and then the complete diet and one of the amino acid-deficient diets were offered alternately for 8-day intervals over 32 days (six groups per treatment). In the complete–Met-def diet groups, overall daily feed consumption (g tank−1) increased gradually, but that for the Met-def diet seemed nearly stable. In the complete–Lys-def diet group, feed consumption when the complete diet was offered increased, while it then decreased after the complete diet was replaced with the Lys-def diet. These results indicate that trout discriminate sufficiency of lysine in diets and regulate their feed consumption.

Electronic Resource

1365-2109

Blackwell Publishing Journal Backfiles 1879-2005

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

The influence of dietary fat level and whole-body adiposity on voluntary energy intake of juvenile rainbow trout Oncorhynchus mykiss (Walbaum) was examined using self-feeders. Groups of lean fish [crude fat (CF) = 7%] and fat fish (CF = 11%), pretreated with a commercial diet with or without supplemental pollock oil, were self-fed one of three fat level diets (CF = 8%, 13.5% and 19%) for 48 days at 17 °C. Final body weight (BW) and total digestible energy (DE) intake (kJ per fish) were positively affected by the initial BW. Relative to the initial BW, however, fat fish consumed less DE than lean fish. Although the effect of dietary fat level was not significant, percentage weight gain and daily DE intake per BW (kJ kg−1 BW day−1) of fat fish were significantly lower than those of lean fish (ancova with initial BW as a covariate, P 〈 0.05). Energy digestibility, feed efficiency and protein retention were improved with the dietary fat level; however, there was no difference resulting from body fat level. The whole-body fat levels at the end of the experiment increased with the dietary fat level. Between groups self-fed the same diet, fat levels of the initially fat fish were still higher than those of the lean fish. The results of the present medium-term study suggest that rainbow trout adjust DE intake from diets with fat levels ranging from 8% to 19%. Although body fat level affects neither energy digestibility nor protein utilization, a high body fat level may reduce DE intake and consequently depress growth.

Electronic Resource

1365-2109

Blackwell Publishing Journal Backfiles 1879-2005

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Growth performance of rainbow trout fry initially weighing 0.27 ± 0.09 g fed on demand by self-feeders and fed continuously by an automatic feeder was compared. Each group of 50 fish (five replicates per treatment) was fed a commercial trout feed for 44 days with a self-feeder that consisted of a highly sensitive switch and a feeder; or with an automatic feeder with two feeding schedules, 12 h (during light phase) per day and 24 h per day. The self-feeders were adjusted to release 0.02 g of food at each switch actuation. Each automatic feeding group was initially fed 0.7 g per day (5.1% of initial biomass) and this was increased twofold and threefold on days 21 and 32 respectively. Almost all feeding activity of the self-feeding groups was observed during the light phase. There was no significant effect of the feeding strategy or the feeding schedule on feed efficiency and specific growth rate, but mortality (including cannibalism) and the coefficient of variation of final fish weigh were significantly lower in the self-feeding groups. It is concluded that rainbow trout fry feed efficiently to attain growth identical to an automatic feeding fish and grow more homogeneously with self-feeders.

Electronic Resource

0006-291X

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Biology

Chemistry and Pharmacology

Physics

Electronic Resource

0920-5632

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Physics

Electronic Resource

0040-4020

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Chemistry and Pharmacology

Electronic Resource

0038-1098

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Physics

Electronic Resource

0375-9474

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Physics

Electronic Resource

0375-9474

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Physics

Electronic Resource