Alteration of phospholipid at various growth phases of Escherichia coli

By inoculating E. coli B into the semisynthetic medium we conducted shaking culture, and observed alterations of the total phospholipid contents and the amounts of individual phospholipid components in various stages of growth. The results are briefly summarized as follows. 1. The total phospholipid content has been found to be greater during early culture period, while it decreases as the growth age advances. 2. Phosphatidyl ethanolamine gradually increase as the culture period approaches the stationary phase. 3. Phosphatidic acid and phosphatidyl glycerol decrease precipitously as growth age advances. 4. Cardiolipin shows the maximum content in the middle log phase when the growth rate is most speedy.</p

Relationships between Spirituality, Health Self-efficacy and Health Locus of Control in the Elderly

The purpose of this study was to clarify the relationships between spirituality, health locus of control and health self-efficacy. A questionnaire survey was administered to elderly people living at home, and 696 valid responses were collected and analyzed. The subjects\u27 mean age was 74.0±5.2 years. Using a causal model to analyze the relationship between spirituality, health locus of control and health self-efficacy, data fitness to the model was evaluated by structural equation modeling. As a result, the validity of a model in which health locus of control affects health self-efficacy and spirituality while health self-efficacy enhances spirituality was confirmed. However, the nature of the relationship between health locus of control and spirituality and health self-efficacy differed according to the characteristics of health locus of control. In addition, there was a positive correlation between health self-efficacy and spirituality regarding "significance and objectives of life", "harmony with others", "belief", and "union with nature". In order to support for the spirituality of the elderly, the author suggests that strategies to improve the health self-efficacy for basic health control behavior are useful

Durability evaluation of surface softened steel bar for prestressed concrete

The effects of Si addition and surface softening on delayed fracture susceptibility were evaluated in tempered martensitic steels with tensile strength of 1450 MPa. The delayed fracture susceptibility was reduced when Si content was increased from 0.2 mass% to 1.88 mass%. The delayed fracture susceptibility of steel containing 1.88 mass% Si was reduced further when the tensile strength of its surface was lowered to around 1150MPa. Based on above results, the durability of these steel bars was evaluated by exposure test of prestressed concrete poles (CP). The bending load of the PC pole was 1.3 times of the design load. As a result of dismantling investigation after 10 years exposure test, there were no breakage of the steel bars in the PC poles and the soundness was maintained. In this paper, we will also introduce some comparison results of exposure tests and acceleration tests with aiming to establish the evaluation methods for the long-term durability

Endoscopic sphincterotomy assisted by percutaneous transhepatic choledochal tube: a preliminary report

We report a method of endoscopic retrograde sphincterotomy in patients in whom the optimal viewing of the papilla of Vater is hardly obtained. Percutaneous transhepatic cholangiodrainage (PTCD)-tube is placed under ultrasonographic guidance. PTCD-tube coming out of the papilla of Vater is observed by the endoscope and the guide wire inside the shpincterotome is inserted into the PTCD-tube. Sphincterotome is advanced into the common bile duct by the guidance of the guide wire and PTCD-tube. Sphincterotomy is performed in a usual fashion. Two patients with previous history of gastrectomy underwent this procedure with successful results. This method should be tried when usual method of EST is difficult and unsuccessful.</p

Endoscopic submucosal tumor biopsy using Stiegmann-Goff endoscopic ligator.

Endoscopic biopsy is an important tool for histological diagnosis of lesions residing in gastrointestinal tracts. However, it is less useful in submucosal lesions due to the existence of normal overlying mucosa. We developed a new and safe technique for the diagnosis of submucosal tumor using Stiegmann-Goff endoscopic ligator. After removing surface mucosa to expose submucosal tissue by this method, conventional secured histological diagnosis could be performed. To determine definitive histological diagnosis, this technique is useful as well as Endoscopic Ultrasound (EUS) with fine needle aspiration biopsy and other modalities.</p

SUBSTITUTION OF HIGH-PRESSURE CHARGE BY ELECTROLYSIS CHARGE AND HYDROGEN ENVIRONMENT EMBRITTLEMENT SUSCEPTIBILITIES FOR INCONEL 625 AND SUS 316L

Fracture strain in Inconel 625 decreases as hydrogen content charged by electrolysis increases, whereas that in SUS 316L does not change regardless of the hydrogen content of 161.5 mass ppm. Grain boundary fracture is observed on the surface of Inconel 625 absorbing a hydrogen content of 27.5 mass ppm, which corresponds to 59.2 MPa hydrogen gas at R.T using Sieverts law. In contrast, the fracture surfaces of SUS 316L hydrogen-charged at extremely high fugacities remain ductile dimples. Thus, hydrogen degradation susceptibility is much lower for SUS 316L than for Inconel 625

A case of rectal Dieulafoy's ulcer and successful endoscopic sclerotherapy.

A 54-year-old woman presented a massive hematochezia 7 days after sigmoidectomy. Repeated colonoscopy and angiography failed to locate the site of bleeding and Hartman's operation was performed. Rebleeding from the rectum on the day of operation occurred and pulsate arterial bleeding with minimal surrounding ulcer 1 cm above the pectinate line was observed. Screlotherapy with ethanol and electro coagulation was successfully performed to achieve permanent hemostasis. The importance of detailed rectal examination and an awareness of this clinical entity in life-threatening lower intestinal bleeding is discussed.</p