A metallographical investigation of manganess-aluminum system was made in the compositional range 47% to 60% manganese, with results a new hexagonal close-packed phase and metastable tetragonal ferromagnetic derived therefrom. The conditions necessary for formation, structure, stability thermal magnetic properties latter have been studied. discussion also given on its properties.

A complex iridium oxide β-Li(2)IrO(3) crystallizes in a hyperhoneycomb structure, three-dimensional analogue of honeycomb lattice, and is found to be spin-orbital Mott insulator with J(eff)=1/2 moment. Ir ions are connected the three neighboring via Ir-O(2)-Ir bonding planes, which very likely gives rise bond-dependent ferromagnetic interactions between moments, an essential ingredient Kitaev model spin liquid ground state. Dominant interaction moments indeed confirmed by temperature...

Abstract The excitonic insulator is a long conjectured correlated electron phase of narrow-gap semiconductors and semimetals, driven by weakly screened electron–hole interactions. Having been proposed more than 50 years ago, conclusive experimental evidence for its existence remains elusive. Ta 2 NiSe 5 semiconductor with small one-electron bandgap E G <50 meV. Below T C =326 K, putative stabilized. Here we report an optical excitation gap op ∼0.16 eV below comparable to the estimated...

The relationship between the low Km aldehyde dehydrogenase (ALDH2) phenotype determined by isoelectric focusing of hair root lysates, facial flushing and alcohol drinking patterns in Japanese (N = 282) was examined. Men who had inactive ALDH2 drank significantly less than those with active ALDH2. Although effect noticeable, a similar detected women. Two types responses were determined: one due to ALDH2, other unrelated this variant form isozyme. A striking difference these types, terms...

Abstract In this study, near-infrared (NIR) spectroscopy, a measurement method not widely used in dentistry, was to monitor the synthesis of calcium phosphate cement. Tetra and di dihydrate were mixed at Ca/P ratio 1.67, water added dropwise induce phase transition HAp. The reaction conditions evaluated by measuring NIR spectra every minute for 60 min 20 24 h. obtained analyzed using singular value decomposition. synthesized apatite characterized XRD, FT-IR, SEM. self-setting cement system,...

The authors sought to delineate the characteristics of female alcoholics with eating disorders.The study subjects were 29 Japanese outpatients and inpatients, 30 years age or younger, DSM-III-R diagnoses either alcohol dependence abuse disorders. Twenty-one within same range who did not have disorders served as comparison group. social familial backgrounds, clinical course, symptoms two groups compared use a structured interview form developed for study.Ninety-three percent had bulimia...

The aim of this study was to investigate and compare the radio-opacity core materials for all-ceramic restorations, such as zirconia (NANOZR Y-TZP) alumina, against commercially pure titanium (cpTi) aluminum. X-ray images were taken under general settings using an film. film scanned a digital scanner, darkness at central area each specimen image quantitatively analyzed analysis software. Amongst investigated, alumina showed most transparency X-rays. Conversely, both types highest...

Novel unsymmetrical squarylium dyes which absorb in the near-infrared region were synthesized by a stepwise procedure via intermediate 4-substituted 3-hydroxycyclobut-3-ene-1,2-diones. By introducing benz[c,d]indoline or benzo[b]pyran moieties at one end as an electron-donating component, SQ exhibited their absorption maxima 739–821 nm with large molar coefficients (log ε = 4.96–5.18) CHCl3. The X-ray analysis for of these was also examined to confirm overall structure dye.

Data from a joint Japan-U.S. collaborative study were examined to determine the relationship of acculturation drinking attitudes among Japanese in Japan and Americans Hawaii California. Drinking (i.e., self-reported acceptable or appropriate levels drinking) ethnic groups differed significantly for nine situations studied: (1) at bar with friends, (2) party someone else's house, (3) as parent, spending time small children, (4) during working hours, (5) visiting in-laws, (6) friends home, (7)...

Abstract Some chloromanganese(III) Schiff base complexes react with hydrogen chloride to give deep green the empirical formula of MnLCl2 or MnL′2Cl2, where H2L denotes quadridentate ligands such as N,N′-disalicylideneethylenediamine and its analogs, HL′ bidentate N-butylsalicylideneamine analogs. These are nonelectrolytes in acetonitrile. Their magnetic moments at room temperature fall within range 3.9 4.1 BM, susceptibilities obey Curie-Weiss law small θ values over 77 300 K, indicating...

Strontium-substituted apatite has been proposed as a promising material for osteoporosis treatment. Several synthesis methods have attempted in the past. In this study, we investigated method known mechanochemical method. Characterization was carried out using different amounts of strontium ions hydroxyapatite (HAp) matrix with FT-IR spectral analysis, X-ray diffraction, lattice constant measurements, differential thermal analysis (DTA), terahertz spectroscopy, and investigation basic...

Commercially pure titanium (cpTi) was etched using three concentrated acids: 18% HCl, 43% H3PO4, and 48% H2SO4. The bond strengths between five types of veneering composite resin eight cpTi treatments (involving combinations sandblasting, acid etching in H2SO4, vacuum firing) were determined before after 10,000 20,000 thermal cycles. There no significant differences the strength to H2SO4 at 90°C for 15 minutes, 60°C 15, 30, or 60 sandblasting with without firing (p>0.05); moreover, these...

We developed a novel apatite coating method that consisted of two-step chemical treatment: combined pretreatment concentrated acid etching and alkaline treatment, followed by alternate soaking. In this study, the effects number reaction cycles, solution temperature, soaking time on deposition titanium surface using were investigated. Results revealed deposited amount mainly depended was independent temperature time. Characterization results formation basically ion exchange adsorption...

Plate-like specimens were prepared, using a diamond saw, from Cercon —a pre-sintered yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) block. These treated with 10 kinds of dental materials which acted as contaminants, and then sintered at 1,350°C or 1,450°C. After the final firing, subjected to three-point flexural test Vickers hardness test. Their surfaces also characterized by scanning electron microscopy X-ray diffractometry. Phosphorus-containing contaminants reduced strength...

Thermal analyses are carried out for the specimens between 54% and 62.5% Mn. A phase diagram among ferromagnetic π-phase ε - β-phases is obtained, it pointed that especially in existence of atomic ordering interaction, locus cross point free energy curves a good measure temperature from which transformation starts. The following question answered: “Why produced by controlled cooling Al-rich -phase but not Mn-rich -phase?”

The surface of a ceria-stabilized tetragonal zirconia polycrystal (Ce-TZP/Al2O3) nanocomposite was sandblasted by alumina particles and veneered with feldspathic porcelain via conventional condensation method. part each specimen containing the interface layer sliced to ultrathin sections an argon ion slicer, these were observed using high-resolution transmission electron microscopy (HRTEM). For both interfaces, Ce-TZP/porcelain Al2O3/porcelain, no transition layers due abrupt changes in...

The construction of SuperKEKB, which consists 7 GeV electron and 4 positron main rings, is now going on. final focus superconducting quadrupole magnets in the interaction region have been designed constructed. From field qualities prototype magnets, magnet designs were modified, manufacturing assembling methods coils changed to satisfy design values. measurements performed at room temperature, confirmed that they acceptable for beam operation. In paper, QC1, will be located closest position...

Zirconia ceramics are widely used as dental prosthetics owing to their high biocompatibility, excellent mechanical strength, and aesthetic properties similar color tones of natural teeth. However, there exists a growing demand for the facile attachment antibacterial in long-term restoration. Thus, this study, we evaluated adsorption ability cetylpyridinium chloride (CPC) benzalkonium (BKC)-quaternary amines substances commercial toothpaste other oral care products-onto zirconia surfaces with...

The rapid aging of the population makes detection and prevention frailty increasingly important. Oral has been proposed as a novel phenotype is defined decrease in oral function coexisting with decline cognitive physical functions. received particular attention relation to Alzheimer's disease (AD). However, pathomechanisms related AD remain unknown. It assumed that mesencephalic trigeminal nucleus (Vmes), which controls mastication, affected by pathology, result, masticatory may be impaired....

The current status and problems concerning the early identification, diagnosis treatment of alcoholism in Japan are outlined this article. With regard to alcoholism, we focus on following four aspects: (1) drinking culture difficulties because culture, (2) social system which serves (3) education specialists, (4) screening tests biological markers alcoholism. number facilities offering specialized alcoholics has sharply increased recent years, but it is clear that such still not sufficient...