Results 41 to 50 of about 4,047,389 (301)
Central Mass Concentration and Bar Dissolution in Nearby Spiral Galaxies [PDF]
, 2002 We use data from the BIMA Survey of Nearby Galaxies (SONG) to investigate the relationship between ellipticity and central mass concentration in barred spirals.
Aguerri J. A. L. +10 more
core +3 more sources
Effects of mixing on evolution of hydrocarbon ratios in the troposphere [PDF]
, 2007 Nonmethane hydrocarbon (NMHC) concentration ratios provide useful indicators of tropospheric oxidation and transport processes. However, the influences of both photochemical and mixing processes are inextricably linked in the evolution of these ratios ...
Atlas, EL +7 more
core +1 more source
Cumhuriyet Science Journal, 2020 Herein, the electronic characteristics of asymmetric triple Ga1-x Alx As/GaAs quantum wells (A model) and Ga1-x Inx As/GaAs quantum wells (B model) have been examined as dependent on Al and In concentration.
Ozan Öztürk +2 more
doaj +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
The concentration ratio of alkaline earth elements calcium, barium and strontium in grains of diploid, tetraploid and hexaploid wheat [PDF]
Zbornik Matice Srpske za Prirodne Nauke, 2017 Even though calcium (Ca), strontium (Sr) and barium (Ba) belong to the same group of the periodic table of elements, and thus have similar chemical features, their importance for plants differs greatly.
Maksimović Ivana V. +5 more
doaj +1 more source
Dynamics and Interactions of Binaries and Neutron Stars in Globular Clusters [PDF]
, 1994 We model the dynamics of test binaries in isotropic, multi-mass models of galactic globular clusters. The evolution of binary orbits through the cluster potentials is modeled, including second order diffusion terms, and probabilities for close encounters
Phinney, E. S., Sigurdsson, Steinn
core +3 more sources
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Frontiers in Energy Research, 2021 The integration of evacuated tube receivers with non-imaging compound parabolic concentrators (CPCs) operating in thermosyphon mode provides the opportunity to deliver solar thermal energy in the medium temperature range that is suitable for many ...
Javed Akhter +8 more
doaj +1 more source
Tuning Electrical Conductivity of CNT-PDMS Nanocomposites for Flexible Electronic Applications [PDF]
, 2015 This paper presents a study into the electrical conductivity of multi-wall carbon nanotube-polydimethylsiloxane (MWNT-PDMS) nanocomposite and their dependence on the filler concentration.
Dahiya, R. +6 more
core +1 more source