Postseismic viscoelastic rebound   总被引：3，自引：0，他引：3  

Nur A  Mavko G 《Science (New York, N.Y.)》1974,183(4121):204-206

The sudden appearance of a dislocation, representing an earthquake, in an elastic layer (the lithosphere) overriding a viscoelastic half space (the asthenosphere) is followed by time-dependent surface deformation, which is very similar to in situ postseismic deformation. The spectacular postseismic deformation following the large Nankaido earthquake of 1946 yields for the asthenosphere a viscosity of 5 x 10(19) poise and a 50 percent relaxation of the shear modulus. Large thrust type earthquakes may provide, in the future, a new method for exploring the rheology of the earth's upper mantle.  相似文献   

Serological investigation of orthohantaviruses in patients with fever of unknown origin in Kazakhstan     

Nur Tukhanova  Anna Shin  Karlygash Abdiyeva  Nurkeldi Turebekov  Lyazzat Yeraliyeva  Ravilya Yegemberdiyeva  Zhanna Shapiyeva  Guenter Froeschl  Michael Hoelscher  Edith Wagner  Kerstin Rsel  Aliya Zhalmagambetova  Lyazzat Musralina  Stefan Frey  Sandra Essbauer 《Zoonoses and public health》2020,67(3):271-279

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吐鲁番市固沙林生态效益的初步调查研究     

努尔·买买提  文科军  苏文锷  柯生荣 《新疆农业大学学报》1991,(4)

对新疆吐鲁番市万亩人工固沙林的观测表明,风速降低39％～68％,粗糙度提高13.8～27.3cm,沙的吹失减少98.2％～99.2％,空气相对湿度增加9.46％,绝对温度增加1.61hPa,饱和差减少2.03hPa,日蒸发减少9.9mm,固定了流沙,改善了小气候,保护了附近的村庄和农田,生态效益显著。  相似文献   

High-quality binary protein interaction map of the yeast interactome network   总被引：1，自引：0，他引：1  

Yu H  Braun P  Yildirim MA  Lemmens I  Venkatesan K  Sahalie J  Hirozane-Kishikawa T  Gebreab F  Li N  Simonis N  Hao T  Rual JF  Dricot A  Vazquez A  Murray RR  Simon C  Tardivo L  Tam S  Svrzikapa N  Fan C  de Smet AS  Motyl A  Hudson ME  Park J  Xin X  Cusick ME  Moore T  Boone C  Snyder M  Roth FP  Barabási AL  Tavernier J  Hill DE  Vidal M 《Science (New York, N.Y.)》2008,322(5898):104-110

Current yeast interactome network maps contain several hundred molecular complexes with limited and somewhat controversial representation of direct binary interactions. We carried out a comparative quality assessment of current yeast interactome data sets, demonstrating that high-throughput yeast two-hybrid (Y2H) screening provides high-quality binary interaction information. Because a large fraction of the yeast binary interactome remains to be mapped, we developed an empirically controlled mapping framework to produce a "second-generation" high-quality, high-throughput Y2H data set covering approximately 20% of all yeast binary interactions. Both Y2H and affinity purification followed by mass spectrometry (AP/MS) data are of equally high quality but of a fundamentally different and complementary nature, resulting in networks with different topological and biological properties. Compared to co-complex interactome models, this binary map is enriched for transient signaling interactions and intercomplex connections with a highly significant clustering between essential proteins. Rather than correlating with essentiality, protein connectivity correlates with genetic pleiotropy.  相似文献   

Forecasting     

Nur A 《Science (New York, N.Y.)》1976,192(4240):688

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A genome-wide analysis of cardiac lesions of pigs that die during transport: Is heart failure of in-transit-loss pigs associated with a heritable cardiomyopathy?     

Katherine Zurbrigg  Francesca Bertolini  Muhammed Walugembe  Toni van Dreumel  David Alves  Robert Friendship  Terri L. O&#x;Sullivan  Max F. Rothschild 《Canadian journal of veterinary research》2021,85(2):119

While heart failure is a primary cause of death for many in-transit-loss (ITL) pigs, the underlying cause of these deaths is not known. Cardiomyopathies are considered a common cause of heart failure in humans and often have a genetic component. The objective of this study was to determine if genes associated with cardiomyopathies could be identified in ITL pigs. Samples from the hearts of pigs that died during transport to an abattoir in Ontario, Canada were collected and genotyped along with samples from pigs that did not die during transport (ILT hearts: n = 149; non-ITL/control hearts: n = 387). Genome-wide analyses were carried out on each of the determined phenotypes (gross cardiac lesions) using a medium density single nucleotide polymorphism (SNP) chip and 500 kb windows/regions for analysis, with 250 kb regions of overlap. The distribution derived by a multidimensional scaling (MDS) analysis of all phenotypes demonstrated a lack of complete separation between phenotypes of affected and unaffected animals, which made diagnosis difficult. Although genetic differences were small, a few genes associated with dilated cardiomyopathy (DCM) and arrhythmogenic right ventricular cardiomyopathy (ARVM) were identified. In addition, multiple genes associated with cardiac arrhythmias and ventricular hypertrophy were identified that can possibly result in heart failure. The results of this preliminary study did not provide convincing evidence that a single, heritable cardiomyopathy is the cause of heart failure in ITL pigs.  相似文献   

Induction of ovulation in ornamental common carp (Koi, Cyprinus carpio L.) using LHRHa ([d-Ser(tBu)⁶, Pro⁹-NEt]-LHRH) combined with haloperidol and carp pituitary extract     

Muhammed Arabac&#;  Ha&#;met Ça&#;&#;rgan  & Mustafa Sar&#; 《Aquaculture Research》2004,35(1):10-14

The effects of a single injection of mammalian superactive analogue [d ‐Ser(tBu)⁶,Pro⁹‐NEt]‐LHRHa (20 μg/ kg^?1) combined with the dopamine antagonist, haloperidol (HAL, 0.5 mg kg^?1), for induction of ovulation in the koi carp broodstocks were determined under routine hatchery conditions. The results were compared with classic carp pituitary extract (CPE, double injection) application (water temperature 22 °C). Physiological saline (0.7% NaCl)‐injected fish were used as a control group and no ovulation occurred in this group. The spawning ratio was high in the LHRHa+HAL treatment group and in the CPE treatment group (6/7 and 5/7 respectively). The latency period was 14–16 h in the LHRHa+HAL treatment group and 12–14 h in the CPE treatment group (after the second injection). There was no difference between the two ovulating groups with respect to the spawning index (the weight of eggs as a percentage of female body weight) and fertilization rate of eggs (P>0.05). As a result, ovulation can be induced successfully in koi carp broodstocks with 20 μg kg^?1 [d ‐Ser(tBu)⁶,Pro⁹‐NEt]‐LHRHa+0.5 mg kg^?1 HAL treatment in a single injection without decreasing the egg quality. Application of this combination can be useful for hatchery and broodstock management in koi carp culture.  相似文献   

Identification of genes expressed in the liver of Japanese flounder <Emphasis Type="Italic">Paralichthys olivaceus</Emphasis> by expressed sequence tags   总被引：1，自引：0，他引：1  

Nur?Rahmawaty?Arma  Ikuo?Hirono  Takashi?AokiEmail author 《Fisheries Science》2005,71(3):504-518

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Monitoring Metal Speciation in The rivers Meuse and Rhine Using DGT     

Rob Cleven  Yusuf Nur  Petra Krystek  Gerard Van Den Berg 《Water, air, and soil pollution》2005,165(1-4):249-263

Although a number of metal speciation methods are nowadays available, most water quality regulations are based on total metal concentrations. One of the main reasons for the ignorance of speciation is the lack of methods with potentiality for monitoring. Conditions that have to be met by such speciation methods are: simple performance, robust and sufficiently accurate. In this study the potential for monitoring purposes of Diffusive Gradients in Thin films (DGT) is investigated as part of a European project for sensor development for routine prediction of metal biouptake in natural waters. Performance characteristics of DGT have been assessed in experiments under controlled laboratory conditions and during in situ application over 4–9 months under different hydrological conditions in the rivers Meuse and Rhine. Results have been worked out for Cu, Ni and Pb. The study shows that DGT has sufficient potential as a robust tool in routine monitoring to observe trends in water quality. However, it appears that during in situ application of DGT the measurement uncertainty of the results is much larger than under laboratory conditions. The increase in measurement uncertainties will partially be due to uncertainties in some as constant considered factors in the calculation of the DGT concentration. For Cu and Ni, the average values for the reproducibility in the rivers Meuse and Rhine appeared to be 28% and 17%, respectively, whereas under laboratory conditions the reproducibilities for both metals were better than 10%. In the speciation of Cu, Ni and Pb in the rivers Meuse and Rhine, the labile fraction, determined using DGT, decreased in the series Ni, Cu, Pb. The ratio of the non-labile and labile fractions of the metals appeared to decrease with increasing content of Dissolved Organic Carbon (DOC).  相似文献   

Control of sub-clinical mastitis by intramammary antibiotics infusion during lactation (Blitz therapy) in Kenya     

A N Hamir  W Gehring  S I Muhammed 《Bulletin of animal health and production in Africa》1979,27(3):199-202

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