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排序方式: 共有454条查询结果,搜索用时 15 毫秒
1.
Fractional excretion of electrolytes in volume‐responsive and intrinsic acute kidney injury in dogs: Diagnostic and prognostic implications
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2.
Surface properties of fibrous and ground cotton and linen were investigated by inverse gas chromatography (IGC) and the contact angle with different liquids was also measured on fabrics composed of both fibers. Results proved that dispersion component of surface tension (γ s d ) determined by IGC depends not only on the surface energy, but also on several factors influencing the adsorbability of probe molecules on the cellulosic substrates. For cotton samples, the trapping of n-alkanes among waxy molecules in the outer layer of fibers can be presumed. This effect results in larger γ s d for cotton fibers than for linen in spite of the higher wettability of the linen fabrics. Besides the surface energy and trapping effects, the grinding also influences the γ s d values. Specific enthalpy of adsorption (ΔH A ab ) of polar probes could be determined on all linen samples, but only on the ground cotton sample. Lewis acid-base character calculated for linen and ground cotton samples depends on the same effects as the γ s d does. The similar ΔH A ab values of chloroform (acidic) and THF (basic) measured on each of the samples support the conclusion that the surface character is amphoteric, which is also proved by the high ΔH A ab values of the amphoteric ethyl acetate and acetone probes. 相似文献
3.
Hanne Digre Ulf Erikson Ekrem Misimi Inger Beate Standal Lorena Gallart-Jornet Siriporn Riebroy 《Journal Of Aquatic Food Product Technology》2013,22(4):391-411
The main objectives of the study were to (a) assess the effect of perimortem stress on blood drainage, (b) compare the efficiency of gill cutting and direct gutting as bleeding methods, and (c) compare pre- and postrigor filleting strategies for presence of residual blood in Atlantic cod fillets. Anesthetized cod had significantly higher drainage of blood compared to stressed fish. Nevertheless, the visual assessments of residual blood were not affected by stress or bleeding method. Some minor, but significant, differences between pre- and postrigor fillets were found. Stressed fish were initially less light in color than those unstressed, but after ice storage there was no noticeable difference. However, initially, the largest difference in fillet color was due to different bleeding methods. Fillets cut from fish subjected to gill cutting were lighter and less red in color than those bled by direct gutting. After 7 and 21 days of storage, the color differences observed in fresh and salted fillets, respectively, were mainly due to the different rigor status when they were filleted, indicating that fillets cut postrigor were superior to fillets cut prerigor. Prerigor filleting resulted in lower water holding capacity after ice storage in anesthetized, direct gutted cod. 相似文献
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Dr. Erika von Winning 《Journal of pest science》1948,21(9):141-142
Ohne Zusammenfassung 相似文献
7.
D. RODRIGUEZ JURADO M. A. BLANCO L
PEZ H. F. RAPOPORT R. M. JIMENEZ DIAZ 《EPPO Bulletin》1993,23(3):513-516
Verticillium wilt caused by Verticillium dahliae is a disease highly prevalent in newly established olive orchards in Andalucía, southern Spain. Two syndromes of the disease occur in Andalucia, namely apoplexy and slow decline. Apoplexy is characterized by quick dieback of twigs and branches while slow decline consists of rapid drying out of inflorescences together with leaf chlorosis and necrosis. Systematic disease observations carried out in two experimental orchards planted with susceptible cv. Picual indicated that natural recovery of diseased trees occurred over time. Infection and vascular colonization of olive plants by V. dahliae were studied in susceptible (Picual) and resistant (Oblonga) cultivars inoculated with a mildly virulent or a highly virulent cotton-defoliating isolate of V. dahliae. Disease symptoms developed 24–32 days after inoculation in cv. Picual, but at that time plants of cv. Oblonga remained free from symptoms. However anatomical observations and isolations indicated that systemic infections by the two isolates had occurred to a large extent in both cultivars. 相似文献
8.
Protocol: a highly sensitive RT-PCR method for detection and quantification of microRNAs 总被引:5,自引:0,他引:5
Erika Varkonyi-Gasic Rongmei Wu Marion Wood Eric F Walton Roger P Hellens 《Plant methods》2007,3(1):12
MicroRNAs (miRNAs) are a class of small non-coding RNAs with a critical role in development and environmental responses. Efficient
and reliable detection of miRNAs is an essential step towards understanding their roles in specific cells and tissues. However,
gel-based assays currently used to detect miRNAs are very limited in terms of throughput, sensitivity and specificity. Here
we provide protocols for detection and quantification of miRNAs by RT-PCR. We describe an end-point and real-time looped RT-PCR
procedure and demonstrate detection of miRNAs from as little as 20 pg of plant tissue total RNA and from total RNA isolated
from as little as 0.1 μl of phloem sap. In addition, we have developed an alternative real-time PCR assay that can further
improve specificity when detecting low abundant miRNAs. Using this assay, we have demonstrated that miRNAs are differentially
expressed in the phloem sap and the surrounding vascular tissue. This method enables fast, sensitive and specific miRNA expression
profiling and is suitable for facilitation of high-throughput detection and quantification of miRNA expression. 相似文献
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10.
Ota Erika do Carmo Cardoso Claudia Andrea Lima Inoue Luis Antonio Kioshi Aoki Zanon Ricardo Basso Silva Tarcila Souza de Castro 《Fish physiology and biochemistry》2022,48(3):735-748
Fish Physiology and Biochemistry - The present study was carried out to evaluate the genotoxic potential of nutritional quality of feed, using erythrocytic nuclear abnormalities assay in Nile... 相似文献