Objective To reveal the subjects and hotspots in domestic studies on information behaviors by analyzing the domestic papers on information behaviors. Methods The key words in domestic papers on information behaviors were analyzed by factor analysis and co-word clustering analysis with the structure of subjects in domestic studies on information behaviors elaborated. Results The domestic studies on information behaviors were focused on the fol-lowing 12 aspects, such as information literacy, network information behaviors, information behavior model, infor-mation dissemination, and information service in libraries. Conclusion The hotspots in domestic studies on informa-tion behaviors are characterized by the various objects, scattered subjects, and balanced degrees.

Child ; Humans ; Nephrotic Syndrome ; diagnosis ; physiopathology ; urine ; Proteinuria ; urine ; Severity of Illness Index

Female ; Humans ; Hypopharynx ; Infant, Newborn ; Pharyngeal Diseases ; pathology ; Polyps ; pathology

85 Chinese sterna(52 males and 33 females)were measured.All 7 measurements were found to have very significant sex differences.However,the overlapping rate between both sexes is very high.It's difficult to determine sex with single measurement.By using Fisher' method,the sex discriminant functions were calculated which can determine sex 90% correctly.For the purpose of sexing bro- ken sternum,some other diseriminant functions were also calculated.Compared with foreigner's,this study has higher discriminant rate and wider practical use.

135 Chinese adult tibiae (69 males, 66 females)were measured. Statistic test shows that all 12 items of measurement have significant sex differences. For the purpose of determining sex from fragmentary tibia, 17 sex diseriminant functions for fragmentary tibia were calculated by means of stepwise discriminant analysis and Fisger's method. The diseriminant rate ranges from 79.3% to 821.4%. The present study shows that the proximal epiphyseal breadth,the distal epiphyseal breadth and the circumference at the level of the nutrient foramen have the most important value in identification of sex they can determine sex alone 79.3—80.2% correctly.

For the diathermancy of the seawater is much bigger than that of the air, and the heat dispersed from the body exceeds the heat produced by the body, the heat would be lost immediately when people fell into the cold seawater. The temperature of people would drop instantly to frozen stiff. So it has great signification to rescue the people dropped into the cold water at once. This paper will introduce how to rescue, examine, stabilize, insulate, finally transport the patient to the hospital, and some things that should be paid attention to during the whole process.

1.The ramification,distribution and collateral circulation of the intraorganic renal arteries have been studied in 130 kidneys from adults and children by means of dissection, injection of casting material or arteriography of fresh kidneys. 2.The intraorganic renal arteries were characterized by a segmented arrangement. The study of arterial casts and of individual segments injected with differently colored acetone-celluloid solution and of segmental arteriogram has shown that there is no col- lateral circulation between adjoining segments.According to the distribution of the ar- teries studied,the kidney is in most cases divisible into five segments—the apical,upper, middle,lower and posterior. 3.In 85.0?3.25% of cases the renal artery is single.Its primary divisions may be distinguished into certain types,among which the anterior-posterior(65.69?4.70%) and superior-inferior(23.53?4.20%)are of the most frequent occurrence.In the former, the anterior division usually gives rise to the apical,upper,middle and lower segmental arteries,while the posterior division continues as such into the posterior segment.In the latter,the superior division usually gives rise either to the apical,upper,middle and posterior or to the apical,upper and posterior,while the inferior division continues as the lower segmental artery or gives rise to middle and lower segmental arteries. Variations in the number,origin and distribution of the apical and lower segmental arteries have been described. 4.When two renal arteries are present instead of one,in 70.58?11.05% of cases, the accessory renal artery continues as the lower or apical segmental artery,while the main stem gives off the other segmental arteries. 5.The manner of branching of the primary division was classified into “main stem” and “dispersed”patterns.In the anterior half of kidney the “dispersed”pattern is most prevalent,whereas in the posterior half the “main stem”occurs more frequently.We have also found that the branching pattern is in close correlation with the external form of the kidney or the shape of the lips. 6.The sites at which the segmental arteries enter the renal parenchyma at the hilus are more or less regular.The location of the sites may be classified into three groups.

China ; Clinical Trials as Topic ; methods ; Humans ; Organizational Policy ; Publishing ; standards ; Registries

Objective To observe the effects of total saponins of tribulus of various consistency on the differentiation of neural hippocampus stem cells. Methods The hippocampus stem cells from newborn rat were obtained by serum-free medium and single-cell cloning technique. Hippocampus stem cells were induced by total saponins of tribulus of various consistency. Nestin, BrdU, neurofilament (NF-200), glial fibrillary acidic protein (GFAP) expression were detected using immunocytochemical stains. The numbers of NF and GFAP positive cells were counted. The percentages of positive cells were obtained. Results The dissociated cells from the organ of hippocampus developed into much of indiffrentiated otopheres of nestin positive cells. The hippocampus stem cell differentiated into neurons and astrocytes with the total saponins of tribulus. The percentage of NF positive neuron in the 20 mg/kg consistency of total saponins of tribulus groups was significantly higher than that in the control group and other consistency of total saponins of tribulus groups. Conclusion Total saponins of tribulus may enhance neural hippocampus stem cells differentiate into NF positive neuron.

Objective To evaluate the relationship between field of view (FOV) and quality of CT images. Methods Scanning of the phantoms of spatial resolution and density resolution was performed with FOVs of 25 cm?25 cm, 35 cm?35 cm, and 42 cm?42 cm, respectively, and the spatial resolution and density resolution of CT images with different FOVs were measured. 20 patients underwent CT scanning using 25 cm?25 cm and 35 cm?35 cm FOVs, respectively. The images were evaluated by 3 qualified CT doctors by using a double-blind reading. Results As FOVs changed, the spatial resolution and density resolution were different. The best spatial resolution and density resolution were obtained on 25 cm?25 cm FOV images. The best spatial resolution could distinguish four 0.6 mm-diameter eyelets, and the best density resolution could distinguish five 2.5 mm-diameter eyelets. The CT images with 25 cm?25 cm FOV were obviously better than those with 35 cm?35 cm FOV (P