Characteristics of headaches in Japanese elementary and junior high school students: A school-based questionnaire survey.

Purpose: Few studies have investigated pediatric headaches in Japan. Thus, we examined the lifetime prevalence and characteristics of headaches among elementary and junior high school students in Japan.

Methods: In this school-based study, children aged 6-15years completed a questionnaire based on the diagnostic criteria of the International Classification of Headache Disorders-3β to assess headache characteristics and related disability.

[A case of chronic lower respiratory tract infection in which the traditional herbal medicine Hochuekkito was effective to prevent exacerbation].

A thin, 63-year-old man was receiving low-dose macrolide therapy for a diagnosis of chronic lower respiratory tract infection, but frequent exacerbations due to Streptococcus pneumoniae were observed. High-resolution computed tomography (CT) of the chest showed bronchiectasis and small centrilobular nodules in the right lower lobe. He had previously had several episodes of exacerbation of chronic lower respiratory tract infection, for which he had received antibiotic treatments (oral fluoroquinolones or intravenous cephems).

[Case of a testicular germ cell tumor presenting with multiple metastasized pulmonary nodules and masses].

A 25-year-old man presented with a 2-month history of bloody sputum and unilateral gynecomastia. High-resolution computed tomography (HRCT) of his chest showed multiple nodules and masses. On physical examination, no enlargement of the testes was noted, but a tiny calcified lesion in his left testis was detected on a genital CT scan.

Organic polyanionic high-spin molecular clusters: topological-symmetry controlled models for organic ferromagnetic metals.

Trianionic spin-quartet and tetraanionic spin-quintet molecular clusters derived from m-dibenzoylbenzene in solution were identified by CW-ESR/pulse-ESR based two-dimensional electron spin transient nutation spectroscopy, and their spin and clustering structures in the ground state were determined in terms of a D-tensor based phenomenological approach and DFT calculations. The molecular structures obtained semiempirically are supported by DFT-based quantum chemical calculations. The DFT calculations have been tested for a sodium ion bridged fluorenone-based cluster, [fluorenone(-)˙ {Na(+)(dme)(2)}](2), whose crystal structure was reported in the literature [H.

Random-orientation high-spin electron spin resonance spectroscopy and comprehensive spectral analyses of the quintet dicarbene and dinitrene with meta-topological linkers: origins of peculiar line-broadening in fine-structure ESR spectra in organic rigid glasses.

In high-spin chemistry, random-orientation fine-structure (FS) electron spin resonance (ESR) spectroscopy entertains advantages as the most facile and convenient method to identify high-spin systems, as frequently reported in the literature. Random-orientation ESR spectroscopy applicable to organic high-spin entities can date back to the Wasserman and co-workers' attempt on the first spin-quintet dicarbene, m-phenylenebis(phenylmethlene) (m-PBPM), in the 2-MTHF glass in 1963 and 1967, following their successful work on randomly oriented triplet-state ESR spectroscopy. The FS ESR spectrum of m-PBPM in the 2-MTHF glass, however, has never fully been analyzed due to a peculiar line-broadening appearing at many canonical peaks.

Comparison of methimazole and propylthiouracil in patients with hyperthyroidism caused by Graves' disease.

Context: Although methimazole (MMI) and propylthiouracil (PTU) have long been used to treat hyperthyroidism caused by Graves' disease (GD), there is still no clear conclusion about the choice of drug or appropriate initial doses.

Objective: The aim of the study was to compare the MMI 30 mg/d treatment with the PTU 300 mg/d and MMI 15 mg/d treatment in terms of efficacy and adverse reactions.

Design, Setting, And Participants: Patients newly diagnosed with GD were randomly assigned to one of the three treatment regimens in a prospective study at four Japanese hospitals.

Structures of palmitoyl-L and DL-lysine monolayers at the air-water interface--polarization modulation infrared reflection absorption spectroscopic study.

Polarization modulation infrared reflection absorption spectroscopy (PM-IRAS) was applied to measure the IR spectra of palmitoyl-DL-lysine (L-PL) and palmitoyl-DL-lysine (DL-PL) at the air-water interface. The spectra in the amide I and II regions were simulated by using the extinction coefficients of the amide I and II bands of L-PL and DL-PL determined by the analyses of the IR external reflection spectra of the Langmuir-Blodget (LB) films prepared on a Ge plate (Yasukawa et al. J.

[Laboratory examinations performed in rural practice].

Graduates from Jichi Medical School are obligated to work at rural clinics or hospitals, where most of them are the only medical doctor in the house. To understand how these graduates actually use laboratory examinations, what examinations they found most important in their practice, and when they were confident of their laboratory techniques, we designed a questionnaire to address these questions. Many respondents reported that their institutions had electrocardiographs, abdominal and/or cardiac ultrasonographs, urinalysis test paper, and portable blood glucose meters, and more than half of them reported having used these instruments without assistance in emergency situations.

Nanoparticle formation of poorly water-soluble drugs from ternary ground mixtures with PVP and SDS.

Poorly water-soluble drugs N-5159, griseofulvin (GFV), glibenclamide (GBM) and nifedipine (NFP) were ground in a dry process with polyvinylpyrrolidone (PVP) and sodium dodecyl sulfate (SDS). Different crystallinity behavior of each drug during grinding was shown in the ternary Drug/PVP/SDS system. However, when each ternary Drug/PVP/SDS ground mixture was added to distilled water, crystalline nanoparticles which were 200 nm or less in size were formed and had excellent stability.

Improvement of physicochemical properties of N-4472. Part III. VC/N-4472 complex formation and self-association in aqueous solution.

To improve the aqueous solubility of a poorly water-soluble drug, N-[2-(3,5-di-tert-butyl-4-hydroxyphenethyl)-4,6-difluorophenyl]-N'-[4-(N-benzylpiperidyl)]urea (N-4472), organic acid/N-4472 evaporates were prepared by using succinic acid, L-tartaric acid, citric acid and L-ascorbic acid (VC). Among these evaporates, only the VC/N-4472 evaporate at a molar ratio of more than 2 (VC/N-4472) formed stable colloidal particles (with a mean particle size View Article and Find Full Text PDF

Exceptionally Persistent Nitrogen-Centered Free Radicals. Syntheses, ESR Spectra, Isolation, and X-ray Crystallographic Structures of N-(Arylthio)-2-tert-butyl-4,6-diarylphenylaminyl and N-(Arylthio)-4-tert-butyl-2,6-diarylphenylaminyl Radicals(1).

The preparation, ESR spectra, isolation, and X-ray crystallographic structure of N-(arylthio)-2-tert-butyl-4,6-diarylphenylaminyls (1) and N-(arylthio)-4-tert-butyl-2,6-diarylphenylaminyls (2) are described. The aminyls are generated by PbO(2) oxidation of N-(arylthio)-2-tert-butyl-4,6-diarylanilines and N-(arylthio)-4-tert-butyl-2,6-diarylanilines. The kinetic ESR study shows that the aminyls are quite persistent, even in the presence of oxygen, and exist in the individual radical forms.