Results 61 to 70 of about 1,138,526 (299)

Using BBN in cosmological parameter extraction from CMB: a forecast for Planck

, 2008
Data from future high-precision Cosmic Microwave Background (CMB) measurements will be sensitive to the primordial Helium abundance $Y_p$. At the same time, this parameter can be predicted from Big Bang Nucleosynthesis (BBN) as a function of the baryon ...
Esposito S, Gianpiero Mangano, Hamann J, Hamann J Wong Y Y Y, Hannestad S, Hannestad S, Izotov Y I Thuan T X Stasinska G, Jan Hamann, Julien Lesgourgues, Mangano G, Perotto L, Pisanti O Cirillo A Esposito S Iocco F Mangano G Miele G Serpico P D, Planck Collaboration, Serpico P D, Switzer E R Hirata C M   +14 more
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Optimizing Multi-Layer Perovskite Solar Cell Dynamic Models with Hysteresis Consideration Using Artificial Rabbits Optimization

Mathematics, 2023
Perovskite solar cells (PSCs) exhibit hysteresis in their J-V characteristics, complicating the identification of appropriate electrical models and the determination of the maximum power point.
Ahmed Saeed Abdelrazek Bayoumi, Ragab A. El-Sehiemy, Mahmoud Badawy, Mostafa Elhosseini, Mansourah Aljohani, Amlak Abaza   +5 more
doaj   +1 more source

Cosmological parameter extraction and biases from type Ia supernova magnitude evolution

, 2009
We study different one-parametric models of type Ia Supernova magnitude evolution on cosmic time scales. Constraints on cosmological and Supernova evolution parameters are obtained by combined fits on the actual data coming from Supernovae, the cosmic ...
A. Tilquin, Aguirre, Amsler, Chevallier, Corasaniti, Drell, Efstathiou, Eisenstein, Ferramacho, Gallagher, Guy, Hamuy, Hamuy, Hatano, Hoeflich, Howell, Hoyle, J.-M. Virey, Kim, Komatsu, Kowalski, Lentz, Linder, Linder, Nordin, Perlmutter, Riess, Riess, Riess, Riess, Röpke, Röpke, S. Linden, Sarkar, Sarkar, Steinhardt, Strolger, Sullivan, Wang, Wood-Vasey   +39 more
core   +3 more sources

Improving the process of coal extraction based on the parameter optimization of mining equipment [PDF]

, 2018
The aim of this paper is to develop and validate methods of choosing the means of the mining face mechanization. This paper analyses existing methods of optimizing processes in mining.
Hrinov, Volodymyr, Khorolskyi, Andrii
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Study of energy extraction and epicyclic frequencies in Kerr-MOG~(Modified Gravity) black hole

, 2019
We investigate the energy extraction by the Penrose process in Kerr-MOG black hole~(BH). We derive the gain in energy for Kerr-MOG as \begin{eqnarray} \Delta {\cal E} \leq \frac{1}{2}\left(\sqrt{\frac{2}{1+\sqrt{\frac{1}{1+\alpha}-\left(\frac{a}{{\cal M}}
Pradhan, Parthapratim
core   +1 more source

Correcting curvature-density effects in the Hamilton-Jacobi skeleton [PDF]

, 2006
The Hainilton-Jacobi approach has proven to be a powerful and elegant method for extracting the skeleton of two-dimensional (2-D) shapes. The approach is based on the observation that the normalized flux associated with the inward evolution of the object
Hancock, E.R., Torsello, A.
core   +4 more sources

Parameter Optimisation for Location Extraction and Prediction Applications [PDF]

2015 IEEE International Conference on Computer and Information Technology; Ubiquitous Computing and Communications; Dependable, Autonomic and Secure Computing; Pervasive Intelligence and Computing, 2015
The pervasive nature of location-aware hardware has provided an unprecedented foundation for understanding human behaviour. With a record of historic movement, in the form of geospatial trajectories, extracting locations meaningful to users is commonly performed as a basis for modelling a users’ interactions with their environment. Existing literature,
Alasdair Thomason, Nathan Griffiths, Victor Sanchez   +2 more
openaire   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source