Results 51 to 60 of about 84,651 (270)

Updated measurements of the dark matter halo masses of obscured quasars with improved WISE and Planck data

open access: yes, 2015
Using the most recent releases of WISE and Planck data, we perform updated measurements of the bias and typical dark matter halo mass of infrared-selected obscured and unobscured quasars, using the angular autocorrelation function and cosmic microwave ...
DiPompeo, M. A.   +2 more
core   +1 more source

Reconciling threshold and subthreshold expansions for pion-nucleon scattering [PDF]

open access: yes, 2017
Heavy-baryon chiral perturbation theory (ChPT) at one loop fails in relating the pion-nucleon amplitude in the physical region and for subthreshold kinematics due to loop effects enhanced by large low-energy constants.
de Elvira, J. Ruiz   +6 more
core   +3 more sources

D14 – a common origin of the Cabibbo angle and the lepton mixing angle θ13l [PDF]

open access: yes, 2012
It has been shown that the Cabibbo angle can be predicted in terms of group theoretical quantities, if the dihedral group D 14 plays the role of a flavor symmetry.
C. Hagedorn, D. Meloni
semanticscholar   +1 more source

Discovery of H2 Receptor Antagonists as Colistin Enhancers by Targeting Acid Stress Response

open access: yesAdvanced Science, EarlyView.
This study identifies YqgB as a key target for restoring colistin susceptibility in mcr‐positive pathogens under acidic conditions by remodeling phospholipid composition and reducing LPS modification. Deep learning‐based screening reveals H2 receptor antagonists as novel colistin adjuvants. Further investigations indicate that ranitidine and famotidine
Jinju Cai   +7 more
wiley   +1 more source

Analysis of Retrofit Strategies of Mid-20th-Century Modern, Concrete Buildings

open access: yesArchitecture
Reusing existing buildings is a valid response to the architectural challenge associated with addressing climate change and can aid the regeneration of the historic built environment.
Bernadett Csaszar   +2 more
doaj   +1 more source

Evolution of strigolactone receptors by gradual neo-functionalization of KAI2 paralogues

open access: yesBMC Biology, 2017
Background Strigolactones (SLs) are a class of plant hormones that control many aspects of plant growth. The SL signalling mechanism is homologous to that of karrikins (KARs), smoke-derived compounds that stimulate seed germination.
Rohan Bythell-Douglas   +6 more
doaj   +1 more source

Sex-dependent influence of endogenous estrogen in pulmonary hypertension [PDF]

open access: yes, 2014
Rationale: The incidence of pulmonary arterial hypertension (PAH) is greater in women suggesting estrogens may play a role in the disease pathogenesis. Experimentally, in males exogenously administered estrogen can protect against PH; however in models ...
Audrey F. Wright   +17 more
core   +1 more source

A Tac1‐Expressing Brainstem Pathway Underlies the Pathogenesis of Trigeminal Neuralgia

open access: yesAdvanced Science, EarlyView.
A critical TG‐Sp5CTac1‐PBNTac1 pathway drives trigeminal neuropathic pain (TNP). Tac1‐expressing parabrachial nucleus (PBNTac1) neurons exhibit heightened responses to innocuous stimuli in TNP, and chemogenetic inhibition of these neurons effectively prevents TNP development.
Liting Sun   +11 more
wiley   +1 more source

Efficacy of chloroquine, sulphadoxine-pyrimethamine and amodiaquine for treatment of uncomplicated Plasmodium falciparum malaria in Kajo Keji county, Sudan. [PDF]

open access: yes, 2004
To provide advice on the rational use of antimalarial drugs, Médecins Sans Frontières conducted a randomized, an open label efficacy study in Kajo Keji, an area of high transmission of malaria in southern Sudan.
Epicentre   +13 more
core   +2 more sources

Senomorphic Small Extracellular Vesicles Delivered by a Tissue‐Adhesive α‐Lipoic‐Acid Hydrogel Enable Immuno‐Rejuvenation for Bone‐Tendon Interface Regeneration

open access: yesAdvanced Science, EarlyView.
This work identifies M1 macrophage‐mediated inflammation as a key driver of BMSC senescence and bone microstructural deterioration at the enthesis. A tissue‐adhesive hydrogel delivering senomorphic small extracellular vesicles suppresses this inflammatory‐senescent cascade and enhances BMSC resilience by inhibiting the cGAS‐STING‐NF‐κB pathway.
Lingzhi Kong   +8 more
wiley   +1 more source

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