136 research outputs found
Digestibility in selected rainbow trout families and modelling of growth from the specific intake of digestible protein
The experiments aimed to clarify variations in digestibility of dietary nutrients in rainbow trout. Furthermore, the objective was to study how differences in digestibility might be related to growth and feed utilisation at various growth rates. When comparing the results from the experiments it appeared that particularly protein digestibility was closely related to specific growth rate and feed conversion ratio at high growth rates. As a tool to visualise the relationship between protein digestibility and growth of rainbow trout a growth model was developed based on the specific intake of digestible protein, and general assumptions on protein content and protein retention efficiency in rainbow trout. The model indicated that increased protein digestibility only partly explained growth increase and that additional factors were important for growth increment
One-stage laparoscopic-assisted resection of gastrojejunocolic fistula after gastrojejunostomy for duodenal ulcer: a case report
<p>Abstract</p> <p>Introduction</p> <p>Gastrojejunocolic fistula is a rare condition after gastrojejunostomy. It was thought to be a late complication related to stomal ulcers as a result of inadequate gastrectomy or incomplete vagotomy. We report a case of gastrojejunocolic fistula after gastrojejunostomy for peptic ulcer treated with one-stage laparoscopic resection.</p> <p>Case presentation</p> <p>A 41-year-old Japanese man complained of diarrhea for 10 months, as well as severe weight loss and weakness. After admission, we immediately started intravenous hyperalimentation. On performing colonoscopy and barium swallow, gastrojejunocolic fistula was observed close to the gastrojejunostomy site leading to the transverse colon. After our patient's nutritional status had improved, one-stage surgical intervention was performed laparoscopically. After the operation, our patient recovered uneventfully and his body weight increased by 5 kg within three months.</p> <p>Conclusions</p> <p>Modern management of gastrojejunocolic fistula is a one-stage resection because of the possibility of early recovery from malnutrition using parenteral nutritional methods. Today, laparoscopic one-stage en bloc resection may be feasible for patients with gastrojejunocolic fistula due to the development of laparoscopic instruments and procedures. We describe the first case of gastrojejunocolic fistula treated laparoscopically by one-stage resection and review the literature.</p
Seasonal Migration of Sika Deer in the Oku-Chichibu Mountains, Central Japan
Movements and seasonal home ranges of 6 GPS collared sika deer were investigated at the Oku-Chichibu Mountains, central Honshu, from April 2009 to March 2010. All deer migrated between discrete summer and winter home ranges. The linear migration distance ranged from 2.5 to 31.9 km. Mean elevation during the summer and the winter ranged from 980 to 1,782 m, and from 1,204 to 1,723 m, respectively. Two deer were upward migrants and 4 deer were downward migrants. Taking into consideration of the relatively small snow accumulation in the summer home range, the possibility of autumn migration to avoid deep snow is low. The percentage of steep slope in the winter home range was higher than that in the summer. Bamboo grass was not found in the summer home range, but was predominant in the winter home range. Road density decreased in the winter home range compared to the summer. Only 2 out of 6 deer stayed mainly in the wildlife protection area during the winter. Our results indicate that the autumn migration was affected by winter forage and human disturbance, thereby assured the survival of the deer during winter.ArticleMAMMAL STUDY. 37(2):127-137 (2012)journal articl
FDI and Growth in East Asia: Lessons for Indonesia
Foreign direct investment has been important in the economic growth and global economic integration of developing countries over the last decades. Both Northeast and Southeast Asia, especially the latter, have been part of this development with increasing inflows of FDI and greater foreign participation in their economies. However, Indonesia has been an outlier within the region, with lower inflows of FDI than other countries, especially in manufacturing, and with lower inflows than could be expected from its size and other country characteristics. The inflows of FDI that have taken place have benefited Indonesia and we use the Asian experience to provide some suggestions as to what measures would increase FDI. A relatively poor business environment with inefficient institutions seems to be an important explanation behind the low inflows of FDI
Analysis of metallothionein and vimentin immunoreactivity in pharyngeal squamous cell carcinoma and its microenvironment
Metallothionein (MT) has been shown to have pro-proliferative anti-apoptotic activity and to be involved in microenvironment remodeling. The aim of this study has been to determine whether the changes in MT and vimentin immunoreactivity observed in cancer and its microenvironment are related to the local spread of the disease. The immunoreactivity levels of both MT and vimentin were evaluated together with CD56 and CD57 antigens in 49 tissue samples taken from patients with squamous cell carcinoma originating from the palatine tonsils and in 20 tissue samples derived from patients with chronic tonsillitis (the reference group). MT immunoreactivity levels were statistically significantly higher in the tissue samples from squamous cell carcinoma than in those of the reference group and also higher in the squamous cell carcinoma samples compared with the stromal samples. Moreover, stromal fibroblasts exhibited high vimentin and MT immunoreactivity levels. Statistically significantly higher MT immunoreactivity levels within the tumor cells were identified in patients with the presence of lymph node metastases in contrast to those patients without such metastases. Vimentin was detected in both the tumor and the stromal tissue samples and presented an interesting pattern of staining strongly expressed within the stroma and the septal architecture of the tumor. The number of CD56- and CD57-positive lymphocytes identified in tissue samples both from squamous cell carcinoma and from the stroma was statistically significantly lower than that in the reference group. MT expression by tumor cells is thus associated with an aggressive phenotype of the tumor and the ability to create metastases
Psychological and weight-related characteristics of patients with anorexia nervosa-restricting type who later develop bulimia nervosa
<p>Abstract</p> <p>Background</p> <p>Patients with anorexia nervosa-restricting type (AN-R) sometimes develop accompanying bulimic symptoms or the full syndrome of bulimia nervosa (BN). If clinicians could predict who might change into the bulimic sub-type or BN, preventative steps could be taken. Therefore, we investigated anthropometric and psychological factors possibly associated with such changes.</p> <p>Method</p> <p>All participants were from a study by the Japanese Genetic Research Group for Eating Disorders. Of 80 patients initially diagnosed with AN-R, 22 changed to the AN-Binge Eating/Purging Type (AN-BP) and 14 to BN for some period of time. The remaining 44 patients remained AN-R only from the onset to the investigation period. Variables compared by ANOVA included anthropometric measures, personality traits such as Multiple Perfectionism Scale scores and Temperament and Character Inventory scores, and Beck Depression Inventory-II scores.</p> <p>Results</p> <p>In comparison with AN-R only patients, those who developed BN had significantly higher current BMI (p < 0.05) and maximum BMI in the past (p < 0.05). They also scored significantly higher for the psychological characteristic of parental criticism (p < 0.05) and lower in self-directedness (p < 0.05), which confirms previous reports, but these differences disappeared when the depression score was used as a co-variant. No significant differences were obtained for personality traits or depression among the AN-R only patients irrespective of their duration of illness.</p> <p>Conclusion</p> <p>The present findings suggest a tendency toward obesity among patients who cross over from AN-R to BN. Low self-directedness and high parental criticism may be associated with the development of BN by patients with AN-R, although the differences may also be associated with depression.</p
The Role of South-South FDI in the Economies of Developing Asia
This paper attempts to measure the size of South–South foreign direct investment (FDI) in developing East Asia and the trends in it, and the characteristics of the investing countries and the investments themselves. It also summarizes the findings of studies in individual countries of the effects of these investments. The studies of individual countries will be used to try to find some consensus on differences between South–South FDI and North–South FDI. Among the comparisons of the two types of FDI we try to summarize are findings about their industrial composition; their effects on their host countries; and their host-country firms' productivity, wages, and employment, and explore how these differ across industries. Our analysis shows that the increased presence of South FDI in East and Southeast Asia might have different effects on host economies from those of FDI from the North
The phase diagram of water at high pressures as obtained by computer simulations of the TIP4P/2005 model: the appearance of a plastic crystal phase
In this work the high pressure region of the phase diagram of water has been
studied by computer simulation by using the TIP4P/2005 model of water. Free
energy calculations were performed for ices VII and VIII and for the fluid
phase to determine the melting curve of these ices. In addition molecular
dynamics simulations were performed at high temperatures (440K) observing the
spontaneous freezing of the liquid into a solid phase at pressures of about
80000 bar. The analysis of the structure obtained lead to the conclusion that a
plastic crystal phase was formed. In the plastic crystal phase the oxygen atoms
were arranged forming a body center cubic structure, as in ice VII, but the
water molecules were able to rotate almost freely. Free energy calculations
were performed for this new phase, and it was found that for TIP4P/2005 this
plastic crystal phase is thermodynamically stable with respect to ices VII and
VIII for temperatures higher than about 400K, although the precise value
depends on the pressure. By using Gibbs Duhem simulations, all coexistence
lines were determined, and the phase diagram of the TIP4P/2005 model was
obtained, including ices VIII and VII and the new plastic crystal phase. The
TIP4P/2005 model is able to describe qualitatively the phase diagram of water.
It would be of interest to study if such a plastic crystal phase does indeed
exist for real water. The nearly spherical shape of water makes possible the
formation of a plastic crystal phase at high temperatures. The formation of a
plastic crystal phase at high temperatures (with a bcc arrangements of oxygen
atoms) is fast from a kinetic point of view occurring in about 2ns. This is in
contrast to the nucleation of ice Ih which requires simulations of the order of
hundreds of ns
The interaction of bacterial pathogens with platelets.
In recent years, the frequency of serious cardiovascular infections such as endocarditis has increased, particularly in association with nosocomially acquired antibiotic-resistant pathogens. Growing evidence suggests a crucial role for the interaction of bacteria with human platelets in the pathogenesis of cardiovascular infections. Here, we review the nature of the interactions between platelets and bacteria, and the role of these interactions in the pathogenesis of endocarditis and other cardiovascular diseases
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