Results 171 to 180 of about 111,155 (292)

Structural insights into urocanate reductase using room‐temperature X‐ray crystallography

Acta Crystallographica Section D, EarlyView.
The active‐site dynamics of the microbial enzyme urocanate reductase were revealed by room‐temperature X‐ray crystallography.Urocanate reductase (UrdA) is a bacterial enzyme that converts urocanic acid to imidazole propionate. Its catalytic residue Arg411 undergoes a large conformational change in the substrate‐bound versus product‐bound states.
Swati Aggarwal, Nitisha Gurav, Esko Oksanen, Karin Lindkvist-Petersson, Raminta Venskutonytė   +4 more
wiley   +1 more source

Development and evaluation of surface-guided patient position system for boron neutron capture therapy. [PDF]

Sci Rep
Chen J, Xie QL, Ping JJ, Hou TT, Liu YH.
europepmc   +1 more source

Extraction replica method from thinned transmission electron microscopy samples without floating off carbon films: A case study on reduced activation steel

Journal of Microscopy, EarlyView.
Abstract A recipe for producing carbon extraction replicas from twin‐jet electropolished disks is described. This technique allows tracking the analysed region with respect to the bulk sample. An example use of the method as applied to a reduced activation ferritic martensitic (RAFM) steel, ‘UK‐RAFM’, is reported.
Jack Haley, Alex Dickinson‐Lomas, Qianyi Sun, David Bowden   +3 more
wiley   +1 more source

Compassionate boron neutron capture therapy for locally recurrent nasopharyngeal cancer: A retrospective study. [PDF]

J Chin Med Assoc
Wang LW, Hsueh Liu YW, Peir JJ, Lin KH, Lee JC, Shueng PW, Yen SH, Yang MH.   +7 more
europepmc   +1 more source

Systematic Approach for Carbonate and Volcanic Facies Classification Based on Textural and Structural Variations Observed in Brazilian Pre‐Salt Acoustic Image Logs

Journal of Petroleum Geology, EarlyView.
ABSTRACT Facies characterization in carbonate reservoirs remains challenging due to their pronounced textural and structural heterogeneity. Variations in grain packing, cementation, and diagenetic overprints produce contrasting acoustic responses in borehole image logs, often limiting the reproducibility of facies interpretation.
Lenita de Souza Fioriti, Rodrigo César Teixeira de Gouvêa, Cleyton de Carvalho Carneiro   +2 more
wiley   +1 more source

Boron Neutron Capture Therapy for High-Grade CNS Tumors: Mechanisms, Carriers, and Clinical Progress: A Narrative Review. [PDF]

Int J Mol Sci
Kutuk T, Atak E, Harrell M, Raval RR, Fekrmandi F, Zhu S, Beyer S, Singh PK, Giglio P, Mohtashami H, Wu KC, Elder JB, Mahase SS, Singh R, Chakravarti A, Palmer JD.   +15 more
europepmc   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

Enhancement of dose distribution using tissue compensators in boron neutron capture therapy. [PDF]

J Appl Clin Med Phys
Sasaki A, Hu N, Nojiri M, Akita K, Yoshikawa S, Kohigashi Y, Nihei K, Aihara T, Takeno S, Yoshino Y, Tanaka H, Ono K.   +11 more
europepmc   +1 more source

Observing the invisible: X‐ray CT for plant–microbe interactions

New Phytologist, EarlyView.
Utility of X‐ray computed tomography (X‐ray CT) for visualising belowground plant interactions between multiple spatial scales and focal planes. Summary Plant–microbe interactions are inherently spatial, yet the physical structure of the soil and rhizosphere is rarely treated as a mechanistic variable in experimental design.
Eric C. Pereira, Chris A. Bell
wiley   +1 more source

Performance comparison of large language models in boron neutron capture therapy knowledge assessment. [PDF]

Sci Rep
Shen S, Wang S, Gao M, Yang Y, Wu X, Wu J, Zhou D, Wang N.   +7 more
europepmc   +1 more source