Results 41 to 50 of about 3,781,521 (194)

First normal stress difference and crystallization in a dense sheared granular fluid

, 2003
The first normal stress difference (${\mathcal N}_1$) and the microstructure in a dense sheared granular fluid of smooth inelastic hard-disks are probed using event-driven simulations.
Alam M., Alam M., Campbell C.S., Erpenbeck J., Evans D.J., Fosdick R.L., Foss D.R., Goddard J.D., Goddard J.D., Goddard J.D., Goddard J.D., Goldhirsch I., Hess S., Ikenberry E., Jenkins J.T., Jin S., Kirkwood J.G., Lee M., Liss E.D., Luding S., Luding S., Luding S., Luding S., Lutsko J.F., Meheboob Alam, Nott P.R., Reiner M., Richman M.W., Santos A., Sela N., Soto R., Stefan Luding, Woodcock L.V., Zhang D.Z., Zhang D.Z.   +34 more
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Oxidative Stress in Normal‐Weight Obese Syndrome [PDF]

Obesity, 2010
The normal‐weight obese (NWO) syndrome was identified in women whose body weight (BW) and BMI are normal but whose fat mass (FM) is >30%. In these subjects, an early inflammatory status has been demonstrated. The aim was to verify whether oxidative stress occurs in NWO. Sixty age‐matched white Italian women were studied and subdivided as follows: 20
DI RENZO L, GALVANO, Fabio, ORLANDI C, BIANCHI A, DI GIACOMO, Claudia, LA FAUCI L, ACQUAVIVA, ROSARIA, DE LORENZO A.   +7 more
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Transcriptomic and physiological analysis of atractylodes chinensis in response to drought stress reveals the putative genes related to sesquiterpenoid biosynthesis

BMC Plant Biology
Background Atractylodes chinensis (DC) Koidz., a dicotyledonous and hypogeal germination species, is an important medicinal plant because its rhizome is enriched in sesquiterpenes. The development and production of A. chinensis are negatively affected by
Shanshan Ma, Chengzhen Sun, Wennan Su, Wenjun Zhao, Sai Zhang, Shuyue Su, Boyan Xie, Lijing Kong, Jinshuang Zheng   +8 more
doaj   +1 more source

Porosity Governs Normal Stresses in Polymer Gels [PDF]

Physical Review Letters, 2016
When sheared, most elastic solids such as metals, rubbers and polymer hydrogels dilate in the direction perpendicular to the shear plane. This well-known behaviour known as the Poynting effect is characterized by a positive normal stress. Surprisingly, biopolymer gels made of fibrous proteins such as fibrin and collagen, as well as many biological ...
De Cagny, H.C.G., Vos, B.E., Vahabi, M., Kurniawan, N.A., Doi, M., Koenderink, G.H., MacKintosh, F.C., Bonn, D.   +7 more
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Shearing tests with continuously increasing normal stress [PDF]

, 2006
In the conventional shearing tests the normal force or the normal stiffness are kept constant during the experiment. Sliding under constant normal load occurs in slopes if the environment is not changing during the process.
Ván, Péter, Vásárhelyi, Balázs
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Wall Orientation and Shear Stress in the Lattice Boltzmann Model

, 2012
The wall shear stress is a quantity of profound importance for clinical diagnosis of artery diseases. The lattice Boltzmann is an easily parallelizable numerical method of solving the flow problems, but it suffers from errors of the velocity field near ...
Aidun, Anor, Artoli, Axner, Berger, Bernsdorf, Bonert, Boussel, Bouzidi, Boyd, Carallo, Caro, Cebral, Cecchi, Chopard, Christ, Cosgrove, Dai, d’Humieres, Gohil, Harvey, He, He, Higuera, Jou, Krüger, Krüger, Ku, Ku, Luo, Maciej Matyka, Malek, McNamara, Meyerson, Milner, Nesbitt, Nickolls, Pantos, Papaioannou, Paszkowiak, Patankar, Peng, Peters, Pohl, Pontrelli, Quarteroni, Reneman, Shaaban, Stahl, Tse, Tölke, Xian, Zbigniew Koza, Łukasz Mirosław   +53 more
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The TDNNS method for Reissner-Mindlin plates [PDF]

, 2017
A new family of locking-free finite elements for shear deformable Reissner-Mindlin plates is presented. The elements are based on the "tangential-displacement normal-normal-stress" formulation of elasticity.
Pechstein, Astrid, Schöberl, Joachim
core   +2 more sources

Genome-wide identification and characterization of NBS-encoding genes in the sweet potato wild ancestor Ipomoea trifida (H.B.K.)

Open Life Sciences, 2022
The most predominant type of resistance (R) genes contain nucleotide-binding sites and leucine-rich repeat (NBS-LRR) domains, characterization of which is helpful for plant resistance improvement. However, the NBS genes of Ipomoea trifida (H.B.K.) remain
Si Zengzhi, Qiao Yake, Zhang Kai, Ji Zhixin, Han Jinling   +4 more
doaj   +1 more source

Comparative analysis of the MYB gene family in seven Ipomoea species

Frontiers in Plant Science, 2023
The MYB transcription factors regulate plant growth, development, and defense responses. However, information about the MYB gene family in Ipomoea species is rare.
Zengzhi Si, Lianjun Wang, Zhixin Ji, Mingming Zhao, Kai Zhang, Yake Qiao   +5 more
doaj   +1 more source

Oxidative stress: Normal pregnancy versus preeclampsia

Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease, 2020
The role of oxidative stress in the physiopathology of human pregnancy is of particular interest. Pregnancy is well-known to increase the oxidative stress, mainly produced by a normal systemic inflammatory response, which results in high amounts of circulating reactive oxygen species (ROS) and reactive nitrogen species (RNS).
Chiarello, Delia I., Abad, Cilia, Rojas, Deliana, Toledo, Fernando, Vázquez, Carmen M., Mate, Alfonso, Sobrevia, Luis, Marín, Reinaldo   +7 more
openaire   +6 more sources