نتایج جستجو برای: 6374 989 pc1 0 2 pc2 0 19 pc3 0 094 pc4
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The 4.5 million organic molecules with up to 20 non-hydrogen atoms in PubChem were analyzed using the MQN-system, which consists in 42 integer value descriptors of molecular structure. The 42-dimensional MQN-space was visualised by principal component analysis and representation of the (PC1, PC2), (PC1, PC3) and (PC2, PC3) planes. The molecules were organized according to ring count (PC1, 38% o...
The aim of this study was to identify and describe the diversity of nutrient patterns and how they associate with socio-demographic and lifestyle factors including body mass index in rural black South African adolescents. Nutrient patterns were identified from quantified food frequency questionnaires (QFFQ) in 388 rural South African adolescents between the ages of 11-15 years from the Agincour...
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Pituitary adenylate cyclase-activating polypeptide (PACAP) is abundant not only in the brain, but also in the testis. Immunohistochemical studies have shown that PACAP-LI in rat testis is expressed stage specifically in spermatids. This suggests that testicular PACAP participates in the regulatory mechanism of spermatogenesis. Additionally, the ovary contains a relatively small amount of PACAP,...
با وجود اینکه تیمور بنیانگذار حکومت تیموریان پیروزی های درخشانی در جبهه های نظامی کسب کرد، ولی هرگز در صدد ایجاد مبانی مشروعیت مستقل از مغولان برنیامد.این راهبرد که در عهد جانشینان او نیز ادامه پیدا کرد، سیاست خارجی تیموریان را در روابط با مغولان منفعل نمود.بدین ترتیب آنان در برخورد با شاخه های مختلف مغول که در مرزهای شرقی و شمالی آن می زیستند، راه مصالحه و کم تنشی را پیمودند و هرگز درصدد براند...
In this work, the structural and magnetic properties of LaMn1-xCoxO3 (x = 0.00, 0.25, 0.50, 0.75, 1.00) are investigated. The structural characterization of compounds by X-ray powder diffraction is evidence for a rhombohedral structure (R -3c space group). Much less increase of the unit cell volume suggests that Co enters in lattice as Co+2 for x ≤ 0.5 while much more decrease of the unit cell ...
Endoproteolytic processing of the 26-kDa protein precursor prodynorphin (proDyn) at paired and single basic residues is most likely carried out by the proprotein convertases (PCs); however, the role of PCs at single basic residues is unclear. In previous studies we showed that limited proDyn processing by PC1/PC3 at both paired and single basic residues resulted in the formation of 8- and 10-kD...
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