Results 81 to 90 of about 156,655 (298)

Yield of systematic screening for tuberculosis among patients with obstructive airway disease using inhalational corticosteroids

open access: yesLung India
Introduction: The increased risk of tuberculosis associated with inhalation corticosteroids has been demonstrated in various studies. However, the specific risk factors for developing tuberculosis in this context are less studied.
Manju Rajaram   +5 more
doaj   +1 more source

“Decline and uneven recovery from 7 common long-term conditions managed in the Catalan primary care after two pandemic years: an observational retrospective population-based study using primary care electronic health records”

open access: yesBMC Primary Care, 2023
Background The incidence of chronic diseases during the COVID-19 pandemic has drastically been reduced worldwide due to disruptions in healthcare systems.
Núria Mora   +15 more
doaj   +1 more source

Why Spin Ice Obeys the Ice Rules [PDF]

open access: yesPhysical Review Letters, 2005
The low temperature entropy of the the spin ice compounds, such as Ho$_2$Ti$_2$O$_7$ and Dy$_2$Ti$_2$O$_7$, is well described by the nearest-neighbor antiferromagnetic Ising model on the pyrochlore lattice, i.e.\ by the ``ice rules''. This is surprising since the dominant coupling between the spins is their long ranged dipole interaction.
Moessner, R.   +2 more
openaire   +4 more sources

Social communities at schools 1999-2000

open access: yes, 2007
Survey among pupils of secondary schools concerning their social behaviour at school. Feelings of belonging to school / experiences with school as a community / importance of school / relationship with teachers / friendships / popularity / attitudes and
A. Kassenberg, ICS, Fac. Sociale Wetenschappen, R.U. Groningen (primary investigator)
core   +1 more source

Effects of LLZO Microstructure Porosity, LLZO/Li‐Metal Interfacial Polarization Resistance, and Applied Areal Current Density on Li‐Metal Dendrite Formation in LLZO Bilayer Symmetric Cells

open access: yesAdvanced Functional Materials, EarlyView.
The effects of solid‐state electrolyte architecture and electrolyte/electrode interfacial polarization resistance on Critical Current Density and the risks for “interfacial” and “internal” Li‐metal dendrite formation were investigated in simulations of FIB‐reconstructed porous‐dense Li7La3Zr2O12 (LLZO) “bilayers”, providing insight for full cells ...
Tanner R. Hamann   +2 more
wiley   +1 more source

ICE VII, THE DENSEST FORM OF ICE

open access: yesProceedings of the National Academy of Sciences, 1964
In the pressure range 0-25 kilobars there occur 7 different crystalline modifications of ice,(1) whereas from 25 kbar up to the highest pressure so far tried, 200 kbar, only a single form occurs:(2) ice VII, of density about 1.7 gm cm^-3. Ice VII thus seems in some sense to be an "ultimate" crystalline form of ice, and its structure is therefore of ...
B, Kamb, B L, Davis
openaire   +3 more sources

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe2/α‐Fe2O3 Heterostructures

open access: yesAdvanced Materials, EarlyView.
A Nb‐proximitized Josephson junction based on a WTe2/α‐Fe2O3 heterostructure exhibits a robust superconducting diode effect with programmable polarity. The diode direction can be trained by magnetic fields and switched by temperature cycling, revealing tunable finite‐momentum pairing states and competing superconducting states in symmetry‐broken ...
Enze Zhang   +9 more
wiley   +1 more source

A Generalized Bit Error Rate Evaluation for Index Modulation Based OFDM System

open access: yesIEEE Access, 2020
Orthogonal frequency division multiplexing (OFDM-IM) is a multicarrier transmission technology that modulates information bits not just onto subcarriers by means of M-ary constellation mapping but also onto selected (active) subcarrier indices ...
Mahmoud Abdullahi   +4 more
doaj   +1 more source

The effect of ice rubble on ice-ice sliding [PDF]

open access: yes, 2015
Ice deformation processes in the Arctic can generate ice rubble. Many situations arise where ice fragments of varying size separate sea ice floes. While the shear forces between sea ice floes in direct contact with each other are controlled by ice-ice friction, what is not known is how the slip of the floes is affected by the presence of rubble between
Scourfield, Sally   +3 more
openaire  

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