98%
921
2 minutes
20
In the frame of a systematic study of excitation functions of deuteron induced reactions the excitation functions of the (133)Cs(d,x)(133m,133mg,131mg)Ba,(134,)(132)Cs and (12)(9m)Xe nuclear reactions were measured up to 40MeV deuteron energies by using the stacked foil irradiation technique and γ-ray spectroscopy of activated samples. The results were compared with calculations performed with the theoretical nuclear reaction codes ALICE-IPPE-D, EMPIRE II-D and TALYS calculation listed in the TENDL-2014 library. A moderate agreement was obtained. Based on the integral yields deduced from our measured cross sections, production of (131)Cs via the (133)Cs(d,4n)(131)Ba→(131)Cs reaction and (133)Ba via (133)Cs(d,2n) reactions is discussed in comparison with other charged particle production routes.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.apradiso.2016.01.007 | DOI Listing |
Org Lett
September 2025
Department of Chemistry, Indian Institute of Techology Bombay, Powai, Mumbai 400076, India.
The direct α-α coupling of 3-pyrrolyl boron dipyrromethenes (BODIPYs) affords helical near-infrared (NIR)-active dimers in one step via a radical Pd-catalyzed process. X-ray analysis reveals Z-type helical packing stabilized by π-π stacking and hydrogen-bonding interactions. These dimers showed pronounced bathochromic absorption shifts compared to monomers and solvent-dependent charge-transfer bands up to 905 nm with fluorescence quenching.
View Article and Find Full Text PDFOrg Biomol Chem
September 2025
Universidad de Córdoba, Grupo de Química Computacional, Facultad de Ciencias Básicas, Carrera 6, No. 77-305, Montería-Córdoba, Colombia.
This study explores the photochemical conversion of BN-Dewar benzene into BN-benzvalene derivatives, offering a strategic route to heteroatom-containing valence isomers with distinctive electronic properties. Using time-dependent density functional theory (TD-DFT) and electron localization function (ELF) analyses, the excited-state mechanism and associated structural rearrangements were elucidated. Vertical excitation to the S state was found to weaken the CC and B-N bonds while strengthening the N-Si bond in silyl-substituted derivatives, a key factor enabling efficient BN-benzvalene formation.
View Article and Find Full Text PDFNature
September 2025
Department of Translational Genomics, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
Small cell lung cancer (SCLC) is a highly aggressive type of lung cancer, characterized by rapid proliferation, early metastatic spread, frequent early relapse and a high mortality rate. Recent evidence has suggested that innervation has an important role in the development and progression of several types of cancer. Cancer-to-neuron synapses have been reported in gliomas, but whether peripheral tumours can form such structures is unknown.
View Article and Find Full Text PDFNature
September 2025
National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, USA.
Controlling spin currents, that is, the flow of spin angular momentum, in small magnetic devices, is the principal objective of spin electronics, a main contender for future energy-efficient information technologies. A pure spin current has never been measured directly because the associated electric stray fields and/or shifts in the non-equilibrium spin-dependent distribution functions are too small for conventional experimental detection methods optimized for charge transport. Here we report that resonant inelastic X-ray scattering (RIXS) can bridge this gap by measuring the spin current carried by magnons-the quanta of the spin wave excitations of the magnetic order-in the presence of temperature gradients across a magnetic insulator.
View Article and Find Full Text PDFSignal Transduct Target Ther
September 2025
Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China.
Essential tremor (ET) is a common neurological disease that is characterized by 4-12 Hz kinetic tremors of the upper limbs and high genetic heterogeneity. Although numerous candidate genes and loci have been reported, the etiology of ET remains unclear. A novel ET-related gene was initially identified in a five-generation family via whole-exome sequencing, and other variants were identified in 772 familial ET probands and 640 sporadic individuals via whole-genome sequencing.
View Article and Find Full Text PDF