Ultraprecise Determination of Cs(nS_{1/2}) and Cs(nD_{J}) Quantum Defects for Sensing and Computing: Evaluation of Core Contributions.

We make absolute frequency measurements of Cs Rydberg transitions, |6S_{1/2},F=3⟩→|nS_{1/2}(n=23-90)⟩ and |nD_{3/2,5/2}(n=21-90)⟩, with an accuracy of less than 72 kHz. The quantum defect parameters for the measured Rydberg series are the most precise obtained to date. The quantum defect series is terminated at δ_{4}, showing that prior fits requiring higher order quantum defects reflect uncertainties in the observations.

Additive Manufacturing of Smart Composite Structures Based on Flexinol Wires.

3D printing of a composite structure with shape memory materials requires a special approach to the subject, at the stage of the design and printing process. This paper presents the design steps during the development of a 3D-printed composite structure with shape memory material. The connection points between the SMA fibers and the printer filament are developed in the MATLAB environment.

Kinetic Isotope Effect in Low-Energy Collisions between Hydrogen Isotopologues and Metastable Helium Atoms: Theoretical Calculations Including the Vibrational Excitation of the Molecule.

We present very accurate theoretical results of Penning ionization rate coefficients of the excited metastable helium atoms (He(2S) and He(2S)) colliding with the hydrogen isotopologues (H, HD, D) in the ground and first excited rotational and vibrational states at subkelvin regime. The calculations are performed using the current best interaction energy surface, which takes into account the nonrigidity effects of the molecule. The results confirm a recently observed substantial quantum kinetic isotope effect (.

Evidence of Nonrigidity Effects in the Description of Low-Energy Anisotropic Molecular Collisions of Hydrogen Molecules with Excited Metastable Helium Atoms.

Cold collisions serve as a sensitive probe of the interaction potential. In the recent study of Klein et al. ( , , 35-38), the one-parameter scaling of the interaction potential was necessary to obtain agreement between theoretical and observed patterns of the orbiting resonances for excited metastable helium atoms colliding with hydrogen molecules.

Robust field-dressed spectra of diatomics in an optical lattice.

The absorption spectra of the cold Na molecule dressed by a linearly polarized standing laser wave is investigated with a theoretical model incorporating translational, electronic, vibrational as well as rotational degrees of freedom. In such a situation a light-induced conical intersection (LICI) can be formed (J. Phys.

Quantum Effects in Cold Molecular Collisions from Spatial Polarization of Electronic Wave Function.

The quantum phenomena of electronic and nuclear resonances are associated with structures in measured cross sections. Such structures were recently reported in a cold chemistry experiment of ground-state hydrogen isotopologues (H/HD) colliding with helium atoms in the excited triplet P-state (He(2P)) [Shagam et al. Nature Chem.

Simple Closed-Form Expression for Penning Reaction Rate Coefficients for Cold Molecular Collisions by Non-Hermitian Time-Independent Adiabatic Scattering Theory.

We present a simple expression and its derivation for reaction rate coefficients for cold anisotropic collision experiments based on adiabatic variational theory and time-independent non-Hermitian scattering theory. We demonstrate that only the eigenenergies of the resulting one-dimensional Schrödinger equation for different complex adiabats are required. The expression is applied to calculate the Penning ionization rate coefficients of an excited metastable helium atom with molecular hydrogen in an energy range spanning from hundreds of kelvins down to the millikelvin regime.

State-of-the-art of transcatheter treatment of aortic valve stenosis and the overview of the InFlow project aiming at developing the first Polish TAVI system.

Initial experience of transcatheter aortic valve implantation (TAVI) or replacement (TAVR) has ap-peared as a promising minimally invasive technology for patients disqualified from surgical treatment (SAVR). Safety and efficacy of TAVI has been analyzed and assessed through numerous registries and trials. Furthermore, results obtained from comparative TAVI vs.

Polyatomic ab Initio Complex Potential Energy Surfaces: Illustration of Ultracold Collisions.

Resonances are metastable states that decay after a finite period of time. These states play a role in many physical processes. For example, in recent cold collision experiments, autoionization from a resonance state was observed.

Adiabatic Variational Theory for Cold Atom-Molecule Collisions: Application to a Metastable Helium Atom Colliding with ortho- and para-Hydrogen Molecules.

We recently developed an adiabatic theory for cold molecular collision experiments. In our previous application of this theory ( Pawlak, M.; et al.

Adiabatic theory for anisotropic cold molecule collisions.

We developed an adiabatic theory for cold anisotropic collisions between slow atoms and cold molecules. It enables us to investigate the importance of the couplings between the projection states of the rotational motion of the atom about the molecular axis of the diatom. We tested our theory using the recent results from the Penning ionization reaction experiment (4)He(1s2s (3)S) + HD(1s(2)) → (4)He(1s(2)) + HD(+)(1s) + e(-) [Lavert-Ofir et al.

Does the choice of hospital increase a chance of survival in rectal cancer?

Unlabelled: The aim of the study was to assess the impact of hospital caseload on long-term outcomes of rectal cancer patients. We posed two questions: 1. Does the number of operations carried out in the surgical department influence five year survival and local recurrence rates? 2.

Local antibiotic therapy in rectal cancer surgery.

Unlabelled: Infectious complications and their consequences are still key issues in rectal cancer surgery. Currently, intravenous antibiotic administration is a recognized method for lowering the rate of these complications. The aim of the study was to assess the efficacy of complementary application of a gentamicin-impregnated sponge in the perineal wound or in the vicinity of intestinal anastomosis after abdominoperineal resection or low anterior resection.

Quality of life, anorectal and sexual functions after preoperative radiotherapy for rectal cancer: report of a randomised trial.

Background And Purpose: Patients (N=316) with resectable cT3-4 low-lying and mid-rectal cancer were randomised to receive either preoperative 5x5Gy irradiation with subsequent surgery performed within 7 days or chemoradiation (50.4, 1.8Gy per fraction plus boluses of 5-fluorouracil and leucovorin) followed by surgery after 4-6 weeks.

Association between pathologic response in metastatic lymph nodes after preoperative chemoradiotherapy and risk of distant metastases in rectal cancer: An analysis of outcomes in a randomized trial.

Purpose: To compare 5 x 5 Gy preoperative radiotherapy with immediate surgery vs. preoperative chemoradiotherapy (50.4 Gy, 5-fluorouracil, leucovorin) with delayed surgery in a randomized trial for cT3-T4 low-lying rectal cancer.