Browse Articles

Acute mesenteric ischaemia in the elderly - results of combined endovascular and surgical treatment. Primary study

Incremental shuttle walking test for calf muscle oxygenation assessment in peripheral arterial disease: a cross-sectional study

Genome sequencing reveals novel variants in a diverse population with congenital anterior segment anomalies

Salient object detection with non-local feature enhancement and edge reconstruction

Failure risk study of anchor bolts durability for loess slope under long-term hydro-thermal effect

Influence of indole acetic acid, arginine and mango fruit waste biochar on nutrients, chlorophyll contents and antioxidants of Fenugreek in salt affected soil

Cluster analysis of symptoms and assessment of caregiver reports in pediatric foreign bodies

Myocardial mechanical changes before and after bariatric surgery in individuals with obesity and diabetes: a 1-year follow-up study

Nanostructural and nanomechanical alterations of photosensitized lipid membranes due to light induced formation of reactive oxygen species

Sensorless control of switched reluctance motor based on inductance characteristic point under magnetic saturation

Chitooligosaccharides promote diabetic wound healing by mediating fibroblast proliferation and migration

U-shaped relationship between uric acid levels and all-cause mortality in patients with hypertension

Fault localization for automatic train operation based on the adaptive error locating array algorithm

Exploring the structure and properties of $$\alpha$$-sheet based bilayer borophenes

Abstract Recent experimental realizations of bilayer boron materials motivated us to study the structure and properties of $$\alpha$$ -sheet-based bilayer borophenes with interlayer covalent bonds. As shown here, at least three stacking variations are possible: AA, AB, and $$\hbox {AB}'$$ . The on-top AA-stacking has been obtained experimentally supported on a metallic substrate. The AB-stacking is the most stable among neutral freestanding structures, whereas the AA and $$\hbox {AB}'$$ stacking sequences are very close in energy, both for neutral and negatively charged cases. The studied bilayer borophenes exhibit extraordinarily high electric conductivity with values as high as $${\sim } 10^7\mathrm {~S}/\textrm{m}$$ for the experimentally observed AA-stacking. The highly stable AB-stacking bilayer, reported here for the first time, exhibits an anisotropic conductivity with an average value of $$6.0 \times 10^6~\mathrm {~S}/\textrm{m}$$ . Contrary to the AA-stacking bilayer that retains the 6-fold fold rotational symmetry of the $$\alpha$$ -sheet, the AB-stacking structure has 2-fold symmetry, which leads to the anisotropic transport properties.

Perioperative ultrasound screening of lower extremity veins is effective in the prevention of fatal pulmonary embolism in orthopedic patients

Extended PROMETHEE method with (p,q)-rung linear Diophantine fuzzy sets for robot selection problem

Development and validation of a prognostic nomogram model for severe osteomyelitis patients

Heterozygous mutation in BRCA2 induces accelerated age-dependent decline in sperm quality with male subfertility in rats

Exosomes derived from hUC-MSCs exhibit ameliorative efficacy upon previous cesarean scar defect via orchestrating β-TrCP/CHK1 axis

Data mining and analysis of adverse events of Vedolizumab based on the FAERS database