The surface of human adenovirus 2 was etched by irradiating intact virions with low-energy (1-keV) Ar+ ions in a Technics Hummer V sputter coater . Viral structures exposed by the etching process were shadowed and then examined in the electron microscope. Periods of etching that were sufficient to reduce the viral diameter by 20 to 30 nm revealed distinct substructural elements in the virion co...

The standard free energy perturbation !FEP" techniques for the calculation of conformational free energy changes of a solvated biomolecule involve long molecular dynamics !MD" simulations. We have developed a method for performing the same calculations many orders of magnitude faster. We model the average solvent density around a solute as the product of the relevant solute–solvent correlation ...

The difference in the adiabatic gradient γ1 between inverted solar data and solar models is analyzed. To obtain deeper insight into the issues of plasma physics, the so-called “intrinsic” difference in γ1 is extracted, that is, the difference due to the change in the equation of state alone. Our method uses reference models based on two equations of state currently used in solar modeling, the M...

We present stellar evolutionary models covering the mass range from 0.4 to 1 M ⊙ calculated for metal-licities Z=0.020 and 0.001 with the MHD equation of state (Hummer & Mihalas, 1988; Mihalas et al. 1988; Däppen et al. 1988). A parallel calculation using the OPAL (Rogers et al. 1996) equation of state has been made to demonstrate the adequacy of the MHD equation of state in the range of 1.0 to...

s | 37 2. Hahn, A., G.S. Kranz, R. Sladky, U. Kaufmann, S. Ganger, et al., Long-term testosterone administration affects language areas of the human brain. Hum Brain Mapp, 2016(accepted). 3. Rametti, G., B. Carrillo, E. Gomez-Gil, C. Junque, L. ZubiaurreElorza, et al., Effects of androgenization on the white matter microstructure of female-to-male transsexuals. A diffusion tensor imaging stud...

Mechanical single-molecule techniques offer exciting possibilities to investigate protein folding and stability in native environments at submolecular resolution. By applying a free-energy reconstruction procedure developed by Hummer and Szabo, which is based on a statistical theorem introduced by Jarzynski, we determined the unfolding free energy of the membrane proteins bacteriorhodopsin (BR)...

The work gave a detailed systematic morphology by optic and scan electron microscopy of two parasites; Raillietina echinobothriida Megnin, 1880 and Spirora meleagaris n. sp. infecting domesticated turkey, with some important description characters. SEM revealed that tegument of R. echinobothriida exhibits, filamentous, microtriches and sensory papillae densely covered the tegument of entire bod...

Grafen, benzersiz özelliklerinden dolayı yeni geliştirilen fotoelekrik aygıtlar için olağanüstü bir malzeme olarak düşünülmektedir. Fakat, grafen tabanlı fotoelektrik cihazların performansı, ve ışık arasındaki etkileşim uzunluğunun atomik kalınlığı nedeniyle sınırlıdır. Bu nedenle, sunulan bu çalışmada, metal-arayüzey-yarıiletken tipi Schottky heteroeklem üretimi absorpsiyonunu arttırmak adına ...

Mục tiêu: Tổng quan này nhằm để đánh giá hiệu quả của các phương pháp phẫu thuật cuốn mũi trong điều trị quá phát dưới. Phương pháp: Sử dụng cơ sở dữ liệu PUBMED tìm kiếm với ngữ MESH. Chỉ nghiên cứu về (PT) dưới có mà không kèm theo thủ khác được lựa chọn. Kết quả: Chúng tôi 43 bao gồm: 3810 bệnh nhân. Độ tuổi dao động từ 1 đến 81 tại thời điểm PT và dõi gian 2 tháng 14 năm. dựa trên khám nội ...

[1] The efficiency of heat transfer by conduction in the Earth’s core controls the dynamics of convection and limits the power available for the geodynamo. We have measured the room temperature electrical resistivity of iron and iron-silicon alloy to 60GPa and present a new model of the resistivity at high pressures and temperatures relevant to the Earth’s core. The model is compared with avail...