| Issue | Title | |
| Vol 3, No 1 (2012) | Interaction of terahertz radiation with DNA | Abstract PDF (Eng) similar documents |
| A. N. Bugay | ||
| "... tunneling is presented. It is demonstrated that terahertz radiation can influence both vibrational ..." | ||
| Vol 6, No 1 (2015) | Tunneling in multidimensional wells | Abstract PDF (Eng) similar documents |
| T. F. Pankratova | ||
| "... operator with a nondegenerate well was constructed in [29]. This allowed us to describe the tunneling ..." | ||
| Vol 8, No 4 (2017) | Calculations of the onset temperature for tunneling in multispin systems | Abstract PDF (Eng) similar documents |
| S. M. Vlasov, P. F. Bessarab, V. M. Uzdin, H. J´onsson | ||
| "... the energy barrier, but as temperature is lowered quantum mechanical tunneling through the barrier becomes ..." | ||
| Vol 8, No 6 (2017) | Instantons describing tunneling between magnetic states at finite temperature | Abstract PDF (Eng) similar documents |
| S. M. Vlasov, P. F. Bessarab, V. M. Uzdin, H. Jónsson | ||
| "... to tunneling from one magnetic state to another at a finite temperature. The method involves analytical ..." | ||
| Vol 5, No 3 (2014) | Crystallite model for flow in nanotube caused by wall soliton | Abstract PDF (Eng) similar documents |
| O. A. Rodygina, S. A. Chivilikhin, I. Yu. Popov, V. V. Gusarov | ||
| "... Fluid flow in a nanotube, caused by a moving soliton-like perturbation of its wall, is considered ..." | ||
| Vol 8, No 3 (2017) | Optically controlled terahertz filter based on graphene and cross-like metasurface | Abstract PDF (Eng) similar documents |
| A. N. Grebenchukov, A. D. Zaitsev, M. K. Khodzitskiy | ||
| "... We propose a theoretical model for the optically controlled terahertz filter based on hybrid ..." | ||
| Vol 7, No 3 (2016) | Effect of substrate temperature on microstructural, vibrational and electrical properties of ZnO nanostructured thin films | Abstract PDF (Eng) similar documents |
| A. K. Prasad, S. Dhara | ||
| "... in growth conditions are observed under the transmission electron microscopy. The vibrational properties ..." | ||
| Vol 8, No 5 (2017) | Detection of the polarization spatial distribution of THz radiation generated by twocolor laser filamentation | Abstract PDF (Eng) similar documents |
| S. V. Smirnov, M. S. Kulya, A. N. Tcypkin, S. E. Putilin, V. G. Bespalov | ||
| "... The spatial distribution of the terahertz radiation polarization is experimentally measured from ..." | ||
| Vol 4, No 4 (2013): Special Issue. INTERNATIONAL CONFERENCE "MATHEMATICAL CHALLENGE OF QUANTUM TRANSPORT IN NANOSYSTEMS - 2013. PIERRE DUCLOS WORKSHOP" | Tunneling current in carbon nanotubes with deep impurities | Abstract PDF (Eng) similar documents |
| N. N. Konobeeva, M. B. Belonenko | ||
| "... In this paper we study the tunneling contact of carbon nanotubes with deep impurities and metal ..." | ||
| Vol 14, No 1 (2023) | Tunneling current of contact of fractal object with metal and superlattice | Abstract PDF (Eng) similar documents |
| N. N. Konobeeva, M. B. Belonenko | ||
| "... the tunneling current is obtained. Current-voltage characteristics are constructed for the following contacts ..." | ||
| Vol 6, No 2 (2015) | A solution of nonlinear Schrödinger equation on metric graphs | Abstract PDF (Eng) similar documents |
| K. K. Sabirov, A. R. Khalmukhamedov | ||
| Vol 3, No 1 (2012) | Flows in nanostructures: hybrid classical-quantum models | Abstract PDF (Eng) similar documents |
| S. A. Chivilikhin, V. V. Gusarov, I. Yu. Popov | ||
| "... mechanism of flow plays an important role. Namely, a model of flow caused by elastic soliton wave in its ..." | ||
| Vol 11, No 5 (2020) | Influence effect of an external electric field and dissipative tunneling on intracenter optical transitions in quantum molecules with D2− states | Abstract PDF (Eng) similar documents |
| V. D. Krevchik, A. V. Razumov, P. V. Krevchik, M. B. Semenov, A. V. Shorokhov, А. P. Shkurinov, I. A. Ozheredov, Y. H. Wang, A. K. Malik | ||
| "... of the external electric field and the parameters of 1D-dissipative tunneling. Dips in the field dependences ..." | ||
| Vol 13, No 6 (2022) | Features of tunneling current-voltage characteristics in dielectric films with Ni, Fe and Co nanoparticles, investigated by conductive AFM and within the framework of the theory of 1D-dissipative tunneling | Abstract PDF (Eng) similar documents |
| M. B. Semenov, V. D. Krevchik, D. O. Filatov, D. A. Antonov, A. V. Shorokhov, A. P. Shkurinov, I. A. Ozheredov, P. V. Krevchik, A. V. Razumov, A. S. Kotov, I. S. Antonov, I. M. Semenov | ||
| "... In this work, we have experimentally investigated the features of tunneling current-voltage (I-V ..." | ||
| Vol 8, No 3 (2017) | Chiral characteristics of metasurface based on gammadion cross in THz frequency range | Abstract PDF (Eng) similar documents |
| M. S. Masyukov, A. V. Vozianova, A. N. Grebenchukov, M. K. Khodzitsky | ||
| Vol 12, No 1 (2021) | Mechanism of gas molecule transport through erythrocytes’ membranes by kinks-solitons | Abstract PDF (Eng) similar documents |
| P. V. Mokrushnikov, V. Ya. Rudyak, E. V. Lezhnev | ||
| "... in its membrane. It was found that the equation of kinks motion has a soliton solution, so that a kink ..." | ||
| Vol 10, No 4 (2019) | Stability of intersite dark solitons in a parametrically driven discrete nonlinear Schrödinger equation | Abstract PDF (Eng) similar documents |
| O. P. Swami, V. Kumar, B. Suthar, A. K. Nagar | ||
| "... and stability of intersite dark discrete solitons admitted by discrete nonlinear Schrödinger equation ..." | ||
| Vol 14, No 2 (2023) | Nucleation and collapse of magnetic topological solitons in external magnetic field | Abstract PDF (Eng) similar documents |
| M. N. Potkina, I. S. Lobanov, V. M. Uzdin | ||
| "... for the collapse of these topological solitons and magnetic configurations in the vicinity of saddle point have ..." | ||
| Vol 15, No 2 (2024) | Tunneling recombination in GaN/InGaN LEDs with a single quantum well | Abstract PDF (Eng) similar documents |
| S. V. Bulyarsky, L. N. Vostretsova, V. A. Ribenek | ||
| "... The paper proposes an analytical model of tunneling-recombination processes with forward ..." | ||
| Vol 7, No 1 (2016): Special Issue: Proceedings of the 12th Biennial International Conference “Advanced Carbon Nanostructures” (ACNS’2015) | Power-like corrections to the conductivity of Mo–C nanocomposites | Abstract PDF (Eng) similar documents |
| A. D. Bozhko | ||
| "... .25 – 1.0. The experimental data are discussed and simulated in the model of inelastic tunneling ..." | ||
| Vol 6, No 6 (2015) | Matter wave compactons in deep optical lattices with strong nonlinearity management | Abstract PDF (Eng) similar documents |
| M. Salerno, F. Kh. Abdullaev | ||
| Vol 5, No 2 (2014) | Localized states and storage of optical information under the qubit-light interaction in micro-size cavity arrays | Abstract PDF (Eng) similar documents |
| E. S. Sedov, S. M. Arakelian, A. P. Alodjants | ||
| "... soliton formation in a high quality cavity array emerging due to two-body polariton-polariton scattering ..." | ||
| Vol 2, No 4 (2011) | Nonlinearity-defect interaction: symmetry breaking bifurcation in a NLS with a 𝛿′ impurity | Abstract PDF (Eng) similar documents |
| R. Adami, D. Noja | ||
| Vol 12, No 1 (2021) | On the long-distance charge transport in DNA-like macromolecules | Abstract PDF (Eng) similar documents |
| D. Chevizovich, A. V. Chizhov, Z. Ivić, A. A. Reshetnyak | ||
| "... distances in DNA-like macromolecular structures in the form of an adiabatic soliton and derive ..." | ||
| Vol 16, No 3 (2025) | Optimality of linear vacancy defect for skyrmion nucleation | Abstract PDF (Eng) similar documents |
| M. N. Potkina, I. S. Lobanov | ||
| Vol 10, No 3 (2019) | A theoretical study of the propagation of light soliton produced by semiconductor quantum dots through optical fibers | Abstract PDF (Eng) similar documents |
| O. P. Swami, V. Kumar, B. Suthar, A. K. Nagar | ||
| "... In this paper, the propagation of light soliton is studied in nonlinear optical fiber. We propose ..." | ||
| Vol 15, No 2 (2024) | Nucleation of magnetic skyrmions at a notch | Abstract PDF (Eng) similar documents |
| M. N. Potkina, I. S. Lobanov | ||
| Vol 8, No 5 (2017) | Features of the energy spectrum of indium antimonide quantum dots | Abstract PDF (Eng) similar documents |
| A. I. Mikhailov, V. F. Kabanov, N. D. Zhukov, E. G. Glukhovskoy | ||
| "... tunneling currentvoltage characteristics (CVC) rated to static conductivity. It was confirmed ..." | ||
| Vol 8, No 1 (2017) | Fast-forward of standard dynamics with use of electromagnetic field | Abstract PDF (Eng) similar documents |
| G. Babajanova, K. Nakamura | ||
| "... . Then we proceed to study 1-D quantum tunneling phenomenon, namely a rapid penetration of wave function ..." | ||
| Vol 9, No 6 (2018) | A comparative analysis of the observed effects of 2D tunneling bifurcationsfor quasi-one-dimensional and quasi-two-dimensional Au–QD systems in an external electric field | Abstract PDF (Eng) similar documents |
| M. B. Semenov, V. D. Krevchik, O. N. Gorshkov, D. O. Filatov, Y. Dakhnovsky, А. V. Nikolaev, A. P. Shkurinov, V. Yu. Timoshenko, P. V. Krevchik, A. K. Malik, Y. H. Wang, T. R. Li, Y. Zhu, S. Zhuang, R. V. Zaytsev, I. S. Antonov, I. M. Semenov, A. K. Aringazin, A. V. Shorokhov | ||
| "... The effects of 2D tunneling bifurcations for quasi-one-dimensional and quasi-two-dimensional Au ..." | ||
| Vol 4, No 4 (2013): Special Issue. INTERNATIONAL CONFERENCE "MATHEMATICAL CHALLENGE OF QUANTUM TRANSPORT IN NANOSYSTEMS - 2013. PIERRE DUCLOS WORKSHOP" | Experimental and Theoretical Characterisation of Josephson Self-coupling in Sub-Terahertz Flux-flow Oscillator | Abstract PDF (Eng) similar documents |
| D. R. Gulevich, P. N. Dmitriev, V. P. Koshelets, F. V. Kusmartsev | ||
| Vol 14, No 5 (2023) | Composite hydroxyapatite-multi-walled carbon nanotubes: study of porosity by terahertz time domain spectroscopy | Abstract PDF (Eng) similar documents |
| A. E. Rezvanova, B. S. Kudryashov, A. N. Ponomarev, A. I. Knyazkova, V. V. Nikolaev, Yu. V. Kistenev | ||
| "... ) with the additives up to 0.5 wt.% of multi-walled carbon nanotubes (MWCNTs) have been studied by terahertz timedomain ..." | ||
| Vol 4, No 2 (2013) | Spatial-time pattern of electrical field of terahertz pulse in the far field | Abstract PDF (Eng) similar documents |
| M. S. Kulya, Ya. V. Grachev, V. G. Bespalov, V. P. Kujanpaa | ||
| "... The spatial and temporal dependence of the electric field amplitude of a terahertz (THz) pulse ..." | ||
| Vol 10, No 5 (2019) | Corrections to paper “A theoretical study of the propagation of light soliton produced by semiconductor quantum dots through optical fibers” | Abstract PDF (Eng) similar documents |
| O. P. Swami, V. Kumar, B. Suthar, A. K. Nagar | ||
| Vol 4, No 6 (2013) | Semiclassical analysis of tunneling through a smooth potential barrier and localized states in graphene monolayer with mass gap | Abstract PDF (Eng) similar documents |
| V. V. Zalipaev, C. M. Linton | ||
| Vol 13, No 3 (2022) | Influence of dissipative tunneling on the photodielectric effect associated with the excitation of impurity complexes A+ + e in a quasi-zero-dimensional structure | Abstract PDF (Eng) similar documents |
| V. D. Krevchik, A. V. Razumov, M. B. Semenov, A. V. Levashov, A. V. Shorokhov | ||
| "... Effect of tunneling decay for the quasi-stationary A+-state, in an impurity complex A+ + e (a hole ..." | ||
| Vol 9, No 4 (2018) | Methodology of analyzing the CdSe semiconductor quantum dots parameters | Abstract PDF (Eng) similar documents |
| A. I. Mikhailov, V. F. Kabanov, E. G. Glukhovskoy, M. I. Shishkin, M. V. Gavrikov | ||
| Vol 11, No 2 (2020) | Shannon entropy associated with electrochemically generated ion concentration gradients | Abstract PDF (Eng) similar documents |
| N. V. Ryzhkov, V. Yu. Yurova, E. V. Skorb | ||
| Vol 15, No 5 (2024) | Proton beam-induced radiosensitizing effect of Ce0.8Gd0.2O2−x nanoparticles against melanoma cells in vitro | Abstract PDF (Eng) similar documents |
| Danil D. Kolmanovich, Mikhail V. Romanov, Sergey A. Khaustov, Vladimir K. Ivanov, Alexander E. Shemyakov, Nikita N. Chukavin, Anton L. Popov | ||
| "... T Proton beam therapy is being used increasingly to treat melanoma. Meanwhile, proton beam therapy ..." | ||
| Vol 7, No 3 (2016) | Negative differential conductivity in Fermi liquid in the presence of magnetic field | Abstract PDF (Eng) similar documents |
| N. N. Konobeeva, M. B. Belonenko | ||
| "... characteristic were observed. The possibility of terahertz pulse generation in such systems was shown for a wide ..." | ||
| Vol 8, No 1 (2017) | Ultradiscretization of reaction-diffusion type partial differential equations exhibiting pulse propagation | Abstract PDF (Eng) similar documents |
| Y. Yamazaki, S. Ohmori | ||
| "... : annihilation, soliton-like preservation and periodic generation with a pacemaker. ..." | ||
| Vol 10, No 4 (2019) | Investigation of physicochemical properties and radiation resistance of fullerene and endohedral metallofullerene derivatives under the ionizing radiation influence | Abstract PDF (Eng) similar documents |
| M. V. Suyasova, A. A. Borisenkova, V. A. Shilin, V. P. Sedov, D. N. Orlova | ||
| "... and Fe@C60(C6H10O5)n were studied. For the structures irradiated by protons with energies of 100 MeV ..." | ||
| Vol 16, No 6 (2025) | Synthesis, structure and properties of composite proton-conducting membranes based on a Nafion-type perfluorinated copolymer with Zr1−xYxO2−0.5x nanoparticles | Abstract PDF (Eng) similar documents |
| A. N. Bugrov, G. N. Gubanova, O. N. Primachenko, I. V. Gofman, E. M. Ivan’kova, E. N. Popova, D. A. Kirilenko, V. K. Lavrentyev, E. N. Vlasova, S. V. Kononova | ||
| "... , and proton conductivity. Since the conditions under which nanoparticles are formed can significantly ..." | ||
| Vol 12, No 6 (2021) | Temperature dependence of recombination radiation in semiconductor nanostructures with quantum dots containing impurity complexes | Abstract PDF (Eng) similar documents |
| V. D. Krevchik, A. V. Razumov, M. B. Semenov, I. M. Moyko, A. V. Shorokhov | ||
| "... in an external electric field in the presence of tunneling decay of a quasistationary A+-state. Probability ..." | ||
| Vol 9, No 6 (2018) | Sensitivity characteristics of germanene | Abstract PDF (Eng) similar documents |
| N. N. Konobeeva, M. B. Belonenko | ||
| "... In this paper, we investigate a sensitivity characteristics of germanene based on the tunneling ..." | ||
| Vol 3, No 1 (2012) | Bound states in birefringent crystals doped with two-level atoms | Abstract similar documents |
| M. B. Belonenko, A. S. Sasov, A. V Alpatov | ||
| "... the results obtained and the well-known soliton modes. ..." | ||
| Vol 7, No 1 (2016): Special Issue: Proceedings of the 12th Biennial International Conference “Advanced Carbon Nanostructures” (ACNS’2015) | Electrical properties of carbon nanotubes / WS2 nanotubes (nanoparticles) hybrid films | Abstract PDF (Eng) similar documents |
| V. K. Ksenevich, N. I. Gorbachuk, Ho Viet, M. V. Shuba, P. P. Kuzhir, S. A. Maksimenko, A. G. Paddubskaya, G. Valusis, A. D. Wieck, A. Zak, R. Tenne | ||
| "... behavior typical for the fluctuation-induced tunneling model in the intermediate temperature range ..." | ||
| Vol 7, No 1 (2016): Special Issue: Proceedings of the 12th Biennial International Conference “Advanced Carbon Nanostructures” (ACNS’2015) | Parent and reduced graphene oxide of different origin in light of neutron scattering | Abstract PDF (Eng) similar documents |
| E. F. Sheka, I. Natkaniec, N. N. Rozhkova, E. Yu. Buslaeva, S. V. Tkachev, S. P. Gubin, V. P. Mel’nikov | ||
| "... . The one-phonon amplitude-weighted density of vibrational states G(ω) represents the inelastic incoherent ..." | ||
| Vol 9, No 3 (2018) | Study of glucose concentration influence on blood optical properties in THz frequency range | Abstract PDF (Eng) similar documents |
| S. I. Gusev, P. S. Demchenko, E. A. Litvinov, O. P. Cherkasova, I. V. Meglinski, M. K. Khodzitsky | ||
| "... by terahertz time-domain spectroscopy at frequencies ranging from 0.3 – 0.5 THz. The increasing of refractive ..." | ||
| Vol 8, No 2 (2017) | Model of tunnelling through double quantum layer in a magnetic field | Abstract PDF (Eng) similar documents |
| D. L. Meynster, I. Y. Popov, A I. Popov | ||
| "... Several explicitly solvable models are constructed for electron tunneling in a system of double ..." | ||
| Vol 13, No 2 (2022) | Three-dimensional extremely short optical pulses in a phonic crystal with a superlattice | Abstract PDF (Eng) similar documents |
| Yu. V. Dvuzhilova, N. G. Glazkova, I. S. Dvuzhilov, I. V. Zaporotskova, M. B. Belonenko | ||
| "... tunneling along one axis, a phenomenological equation was obtained in the form of the classical 2+1 ..." | ||
| Vol 3, No 5 (2012) | Topograms production with use of pulsed teraherz reflectometer | Abstract similar documents |
| M. S. Kulya, Ya. V. Grachev, V. G. Bespalov | ||
| "... form of pulsed THz radiation reflected from objects (THz reflectometer) for pulsed terahertz imaging ..." | ||
| Vol 12, No 1 (2021) | Analysis of the energy spectrum of indium antimonide quantum dots with temperature changes | Abstract PDF (Eng) similar documents |
| V. F. Kabanov, A. I. Mikhailov, M. V. Gavrikov | ||
| "... by processing normalized differential tunneling current-voltage characteristics using the “cubic” model ..." | ||
| Vol 9, No 5 (2018) | Influence of copper nanoparticle film processing temperature on their structure and electrical properties | Abstract PDF (Eng) similar documents |
| N. N. Begletsova, A. J. K. Al-Alwani, A. S. Atkin, V. P. Sevostyanov, E. G. Glukhovskoy | ||
| "... were carried out using a scanning probe microscope in atomic force and scanning tunneling microscopy ..." | ||
| Vol 3, No 2 (2012) | Non-linear optical channels of the polarizability induction in a pair of interacting molecules | Abstract similar documents |
| A. P. Kouzov, N. I. Egorova, M. Chrysos, F. Rachet | ||
| "... that triggers the Raman vibrational transitions forbidden by selection rules for isolated molecules. By using ..." | ||
| Vol 9, No 1 (2018) | Isotopic effects in impurity-vacancy complexes in diamond | Abstract PDF (Eng) similar documents |
| E. A. Ekimov, V. S. Krivobok, S. G. Lyapin, P. S. Sherin, V. A. Gavva, M. V. Kondrin | ||
| "... vibronic peak (local vibrational mode, LVM) provides valuable information on the electronic and structural ..." | ||
| Vol 5, No 5 (2014) | Few cycle pulses in the Bragg medium containing carbon nanotubes | Abstract PDF (Eng) similar documents |
| M. B. Belonenko, Ju. V. Nevzorova, E. MN. Galkina | ||
| "... ]. Particularly, Bragg solitons can be formed in such systems. They are revealed as a specified counter assembly ..." | ||
| Vol 6, No 3 (2015) | Neutron scattering from graphene oxide paper and thermally exfoliated reduced graphene oxide | Abstract PDF (Eng) similar documents |
| E. F. Sheka, I. Natkaniec, V. Mel’nikov, K. Druzbicki | ||
| "... of vibrational states G( ) represents the inelastic incoherent neutron scattering spectra of the products ..." | ||
| Vol 9, No 5 (2018) | Vibron transport in macromolecular chains with squeezed phonons | Abstract PDF (Eng) similar documents |
| D. Cevizovi ˇ c, A. V. Chizhov, S. Galovic | ||
| "... through a macromolecule, whose vibrational state can be described as a squeezed vacuum state ..." | ||
| Vol 6, No 6 (2015) | Intra pseudogap- and superconductivy-pair spin and charge fluctuations and underdome metal-insulator (fermion-boson)-crossover phenomena as keystones of cuprate physics | Abstract PDF (Eng) similar documents |
| B. Abdullaev, D. B. Abdullaev, C. -H. Park, M. M. Musakhanov | ||
| "... tunneling microscopy (STM) real space nanoregions (NRs), which exhibit an energy gap, we have succeeded ..." | ||
| Vol 8, No 1 (2017) | Metal-insulator (fermion-boson)-crossover origin of pseudogap phase of cuprates I: anomalous heat conductivity, insulator resistivity boundary, nonlinear entropy | Abstract PDF (Eng) similar documents |
| B. Abdullaev, C.-H. Park, K.-S. Park, I.-J. Kang | ||
| "... in the hidden magnetic order and scanning tunneling microscopy (STM) experiments spin and charge fluctuations ..." | ||
| Vol 15, No 5 (2024) | Ionic channel structure in perfluorinated membranes studied by small angle X-ray scattering, optical and Mossbauer spectroscopy | Abstract PDF (Eng) similar documents |
| Vasily T. Lebedev, Valery S. Kozlov, Mikhail V. Remizov, Yury V. Kulvelis, Oleg N. Primachenko, Elena A. Marinenko, Georgy S. Peters | ||
| "... of ionic groups of polymer chains at nanoscales into extended fine channels for proton conductivity ..." | ||
| Vol 12, No 6 (2021) | Novel gold nanoparticle-protein-semiconductor quantum dot hybrid system: synthesis, characterization and application in cancer cell imaging | Abstract PDF (Eng) similar documents |
| Runjun Sarma, Monoj KumarDas, Lakshi Saikia, Ratul Saikia | ||
| "... and vibrational properties of Au-CdSe, Au-BSA-CdSe and Au-Lysozyme-CdSe hybrid systems following their use ..." | ||
| Vol 14, No 2 (2023) | Colloidal-chemical mechanism of Zn(OH)2–ZnO layer formation at the glass– ammonia solution– Zn(II) interface | Abstract PDF (Eng) similar documents |
| E. V. Polyakov, M. A. Maksimova, J. V. Kuznetsova, L. Yu. Buldakova | ||
| "... temperature (unsaturated system) and the synthesis temperature (supersaturated system). Using vibrational ..." | ||
| 1 - 65 of 65 Items | ||
Search tips:
- Search terms are case-insensitive
- Common words are ignored
- By default articles containing any term in the query are returned (i.e., OR is implied)
- Make sure that a word exists in an article by prefixing it with +; e.g., +journal +access scholarly academic
- Combine multiple words with AND to find articles containing all terms; e.g., education AND research
- Exclude a word by prefixing it with - or NOT; e.g., online -politics or online NOT politics
- Search for an exact phrase by putting it in quotes; e.g., "open access publishing". Hint: Quoting Chinese or Japanese words will help you to find exact word matches in mixed-language fields, e.g. "中国".
- Use parentheses to create more complex queries; e.g., archive ((journal AND conference) NOT theses)