Results 41 to 50 of about 47,768 (224)

The Advantage of Increased Resolution in the Study of Quasar Absorption Systems [PDF]

open access: yes, 2006
We compare a new R = 120,000 spectrum of PG1634+706 (z_QSO = 1.337,m_V = 14.9) obtained with the HDS instrument on Subaru to a R = 45, 000 spectrum obtained previously with HIRES/Keck.
Anand Narayanan   +8 more
core   +3 more sources

Effects of Reminiscence Therapy Using Nostalgic SONGS on The Cognitive Function of The Elderly Living in The Community. [PDF]

open access: yes, 2017
The study aimed to examine the effects of reminiscence therapy using nostalgic songs on the cognitive function of elderly people living in the community.
Hashimoto, Akiko   +2 more
core  

HD-[HD-GYP] Phosphodiesterases: Activities and Evolutionary Diversification within the HD-GYP Family

open access: yesBiochemistry, 2020
Cyclic dinucleotides are signaling molecules that modulate many processes, including immune response and virulence factor production. Their cellular levels in bacteria are fine-tuned by metal-dependent phosphodiesterases, namely, the EAL and HD-GYP proteins, with HD-GYPs belonging to the larger HD domain superfamily.
Sining Sun, Maria-Eirini Pandelia
openaire   +3 more sources

Complex Cryptographic and User‐Centric Physically Unclonable Functions Enabled by Strain‐Sensitive Nanocrystals via Selective Ligand Exchange

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates electromechanical PUFs that improve on traditional electric PUFs. The electron transport materials are coated randomly through selective ligand exchange. It produces multiple keys and a key with motion dependent on percolation and strain, and approaches almost ideal inter‐ and intra‐hamming distances.
Seungshin Lim   +7 more
wiley   +1 more source

Global Dynamics and Stability Limits for Planetary Systems around HD 12661, HD 38529, HD 37124, and HD 160691

open access: yesThe Astrophysical Journal, 2002
In order to distinguish between regular and chaotic planetary orbits we apply a new technique called MEGNO in a wide neighbourhood of orbital parameters determined using standard two-body Keplerian fits for HD 12661, HD 38529, HD 37124 and HD 160691 planetary systems.
Kiseleva-Eggleton, Ludmila   +3 more
openaire   +3 more sources

FAPα+ Macrophages Orchestrate Immune Evasion in Multiple Myeloma by Dual Regulation of PD‐L1 and T Cell Senescence

open access: yesAdvanced Science, EarlyView.
Fibroblast activation protein alpha‐positive (FAPα+) macrophages, a distinct subset of multiple myeloma (MM)‐associated macrophages, drive immune evasion in MM through multi‐faceted mechanisms. FAPα physically interacts with vimentin (VIM) and triggers its phosphorylation at the S72 residue, which in turn induces PD‐L1 transcription. Additionally, FAPα
Huiyao Gu   +15 more
wiley   +1 more source

Dynamics and Switching Control of a Class of Underactuated Mechanical Systems with Variant Constraints

open access: yesApplied Sciences, 2019
Locomotion systems with variant constraints are familiar in real world applications, but the dynamics and control issues of variant constraint systems have not been sufficiently discussed to date.
Tingting Su   +5 more
doaj   +1 more source

Serial Maximum a Posteriori Detection of Two-Dimensional Generalized Partial Response Target for Holographic Data Storage Systems

open access: yesApplied Sciences, 2023
Holographic data storage (HDS) is an emerging technology that promises to revolutionize digital data storage and access. Unlike traditional storage media such as hard drives and flash memory, HDS uses light to write and read page-oriented two-dimensional
Thien An Nguyen, Jaejin Lee
doaj   +1 more source

Chloroplast Stress Signals Orchestrate Epidermis‐Specific Remodeling of Mitochondria and ER Under High Light

open access: yesAdvanced Science, EarlyView.
High light exposure triggers an epidermis‐specific remodeling of mitochondria and ER in Arabidopsis, driven by chloroplast‐derived signals. Live‐cell imaging shows that HL rapidly suppresses mitochondrial motility, followed by fusion‐driven elongation and ER cisternal expansion.
Evan R. Angelos   +12 more
wiley   +1 more source

Comparison of demographic characteristics and psychiatric comorbidity among methamphetamine-, heroin- and methamphetamine-heroin co- dependent males in Hunan, China

open access: yesBMC Psychiatry, 2017
Background There is little research of psychiatric comorbidity differences among people with different types of drug dependence in Chinese population.
Huixi Dong   +7 more
doaj   +1 more source

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