Results 31 to 40 of about 386,764 (302)

Chemical Identification of the Radioelements Produced from Carbon and Boron by Deuteron Bombardment [PDF]

open access: yes, 1935
Chemical experiments were made on the radioactive substances resulting from the bombardment of carbon and boron by deuterons. Carbon is shown to yield an isotope of nitrogen and boron an isotope of carbon.
Ridenour, L. N.   +2 more
core   +1 more source

Isolated Au Atom Anchored on Porous Boron Nitride as a Promising Electrocatalyst for Oxygen Reduction Reaction (ORR): A DFT Study

open access: yesFrontiers in Chemistry, 2019
The development of efficient, stable, and low-cost catalytic material for the oxygen reduction reaction (ORR) is currently highly desirable but challenging.
Qiaoling Li   +8 more
doaj   +1 more source

Pressure-induced metallization in solid boron [PDF]

open access: yes, 2001
Different phases of solid boron under high pressure are studied by first principles calculations. The $\alpha$-B$_{12}$ structure is found to be stable up to 270 GPa.
A. Jayaraman   +27 more
core   +3 more sources

Epigenetic impact of the parents' physical activity on the health of their children

open access: yesBaltic Journal of Health and Physical Activity, 2021
All parents’ dream is to have healthy children. The question whether the parents' lifestyle affects the quality of their progeny's health has been bothering scientists and society for many years.
AGNIESZKA BORON
doaj   +1 more source

Effect of Foot Orthoses on Midfoot Pain and the Volume of Bone Marrow Lesions in the Midfoot: A Randomized Mechanism of Action Study

open access: yesArthritis Care &Research, EarlyView.
Objective Foot orthoses are thought to improve pain by potentially modifying internal mechanical forces. To test this, we explored whether foot orthoses can modify patterns of bone marrow lesions (BMLs) in people with midfoot pain. Methods Forty‐two people were recruited with midfoot pain, and magnetic resonance imaging–confirmed midfoot BMLs ...
Jill Halstead   +4 more
wiley   +1 more source

Novel Precursors for Boron Nanotubes: The Competition of Two-Center and Three-Center Bonding in Boron Sheets

open access: yes, 2007
We present a new class of boron sheets, composed of triangular and hexagonal motifs, that are more stable than structures considered to date and thus are likely to be the precursors of boron nanotubes. We describe a simple and clear picture of electronic
E. L. Muetterties   +4 more
core   +1 more source

Diagnostic Use of Testing for Novel Murine Autoantibodies for Sjögren Disease in the Rheumatology Outpatient Setting

open access: yesArthritis Care &Research, EarlyView.
Objective The goal was to assess the diagnostic performance of three novel autoantibodies (NA) for Sjögren disease (SjD) by comparing NA prevalence in patients with SjD, other autoimmune rheumatic diseases (ARDs), nonspecific chronic sialadenitis (CS), and controls.
Chadwick R. Johr   +5 more
wiley   +1 more source

A fully conjugated meso-boron-substituted porphyrinoid combining Lewis acidity with redox-switchable aromaticity

open access: yesNature Communications
The structural motif of porphyrin is relevant for many essential biological processes and has emerged as a versatile component of functional materials. Here, we introduce a thiophene-based porphyrinogen having electron-deficient boron atoms in all four ...
Manuel Buckel   +8 more
doaj   +1 more source

Meristic and biometric parameters of spined loach, Cobitis taenia (L.) (Cypriniformes, Cobitidae) from Zegrzyński Dam Reservoir [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1994
The paper presents the results of studies on meristic and biometric parameters in spined loach, Cobitis taenia (L.) from Zegrzyński Dam Reservoir. Body proportions were determined as well as the relations between the parameters under study and body and ...
A. Boroń
doaj   +3 more sources

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