Single State Research Articles

Сюжетные коллизии детективного романа Ахмета Умита «Народ» (2006)

This article is devoted to the structural and substantive analysis of one of the most famous detective novels by the popular Turkish writer Ahmet Umit "The People" (2006), which stands somewhat apart in the mainstream of his work. The article shows that, unlike other detective stories by the author, the action immediately begins with a crime, and as the plot develops, more and more murders enter the narrative orbit. In parallel with the detective line, the novel develops the idea of multiculturalism in Turkey, in which different peoples and religions have long lived in peace and harmony (Christians, Muslims, Jews). Hence the title of the novel, which is not about some specific people, but about peoples historically coexisting within the framework of a single Turkish state. The purpose of the study is to substantiate that this novel fits into the writer's detective paradigm from the point of view of poetological features. The article analyzes the plot and compositional features of the novel with an emphasis on plot collisions and the image system. The scientific novelty of the study lies in the fact that the novel in question "Umita" for the first time becomes an object of analytical study in the domestic Turkological literary criticism. For the first time, the problems of the novel are considered through the prism of its structural and meaningful content. For the first time, it is proved that the artistic structure of the novel is somewhat unusually constructed for the author's detective paradigm. As a result, it is proved that the poetics and plot of the novel correlate with the historical detective genre developed by A. Umit in its most diverse variants.

Properties of Hydrogen Species in n‐Type Silicon Deduced from In‐Diffusion Profiles

Reported depth profiles of hydrogen in plasma‐exposed n‐Si samples can be fitted with a simple model of hydrogen transport by negative and neutral species (H− and H0) accompanied by a reversible formation of hydrogen–donor pairs (HD) and by an irreversible production of mobile dimers H2A—in particular by a bulk pairing reaction of the H− and H0 species. Contrary to a complicated behavior of hydrogen found in p‐Si (with multiple independent states for positive ions and passivated boron), the situation in n‐Si appears to be much simpler as only single states for H−, H0, and HD are sufficient for profile reproduction. The parameters deduced from the profiles are the diffusivity of H−, the characteristic electron concentration marking equal contributions of H− and H0 into hydrogen transport, and the diffusivity of H2A dimers (in the available temperature range 120–225 °C).

Spin Polarization via Adiabatic and Counterdiabatic Engineering.

A spin filter is a device that allows only a single spin state to pass, equivalent to a polarizing filter for a beam of light. Here, taking inspiration from shortcuts to adiabaticity, I demonstrate that the potential landscape of a typical quantum point contact can be tuned to act as a two terminal spin filter or to generate a spin-polarized beam. The effect presented is sufficiently robust that rough engineering yields a significant effect, as demonstrated by experiments on asymmetrically biased quantum point contacts in InAs quantum wells.

Study on the spectral characteristics and chemical structure of Taixi Anthracite

Taixi anthracite is a rare form of coal in both China and the world, characterized by low ash, sulfur, phosphorus, high carbon content, conductivity, and calorific value. Our team employed a solid-phase microwave method [1] to graphitize Taixi anthracite and graft it with natural rubber to create a composite with outstanding properties. However, since the molecular structure of Taixi anthracite was unknown, establishing a molecular model for the reaction becomes crucial for the functionalization of anthracite. In this study, By combining elemental analysis, nuclear magnetic resonance carbon spectroscopy, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy, the molecular carbon content of Taixi anthracite is 89 %, the XBP value is 0.37, and the chemical formula of the lowest relative molecular weight of Taixi anthracite is C181H77O4NS0.1. The results of computer simulation show that Taixi anthracite is assembled into coal macromolecular structure by 10 molecular structure units of 5 kinds of coal according to 2:1:2:2:3 ratio, and the geometric optimization, annealing simulation and inverse verification are carried out. The aggregation model is established by using X-ray diffraction data and computer simulation techniques.we innovatively constructed five groups of macromolecular structure units of Taixi anthracite to characterize the results and simulate the minimum energy configuration of single chains and aggregate states. This research provides a molecular-level theoretical basis for the functionalization of Taixi anthracite.

Productivity Convergence Among Chinese Firms: The Role of Five-Year Plans and SOEs

This study examines productivity convergence among Chinese manufacturing firms over the period 2000–2020. The research found evidence of club convergence, where firms converge toward different productivity levels rather than a single steady state within specific sectors. The number of convergence clubs varied by industry and over time, indicating heterogeneity in productivity development across firms. The speed of productivity convergence among firms within an industry generally decreased over the four Five-Year Plans, suggesting that over time it became more difficult for less productive firms to catch up. The presence of state-owned enterprises (SOEs) in an industry was found to be positively associated with faster productivity convergence, indicating SOEs may help in knowledge dissemination and facilitate catch-up of lagging firms. Strengthening intellectual property protection over time was also linked to slower productivity convergence, as it increased the costs of knowledge spillovers. The results highlight how the industrial presence of SOEs and the trend of strengthening intellectual property protection could impact productivity convergence among manufacturing firms.

Tactfully regulating the ESIPT and TICT mechanism in the AIE-active multifunctional triphenylamine Schiff-base compound (TPASB) by methyl substitution

The triphenylamine Schiff-base (TPASB) with dual proton transfer sites (N1…H1–O1 [R1] and N2…H2–O2 [R2]), which is crucial in the field of optoelectronic materials. Herein, a novel molecular design strategy for preparing of TPASB-1 and TPASB-2 via the selective methylation of the hydroxyl group at the R2 or R1 position was proposed. The analysis of electronic structures and potential energy surfaces revealed that a single excited state intramolecular proton transfer (ESIPT) process of TPASB occurs only at R1. Nevertheless, the ESIPT process of TPASB-2 was successfully turned on at R2. More noteworthy is that compared to TPASB, the methylation of hydroxyl group at the R2 position triggers the TICT process of TPASB-1, effectively reducing the potential barrier of ESIPT at the R1 position. This theoretical study explains the role of the substituent effect in regulating ESIPT behaviour, and provides valuable guidance for synthesising efficacious ESIPT-active compounds.

Immune cell landscapes are associated with high-grade serous ovarian cancer survival

High-grade serous ovarian cancer (HGSOC) is an aggressive disease known to develop resistance to chemotherapy. We investigated the prognostic significance of tumor cell states and potential mechanisms underlying chemotherapy resistance in HGSOC. Transcriptome deconvolution was performed to address cellular heterogeneity. Kaplan–Meier survival curves were plotted to illustrate the outcomes of patients with varying cellular abundances. The association between gene expression and chemotherapy response was tested. After adjusting for surgery status and grading, several cell states exhibited a significant correlation with patient survival. Cell states can organize into carcinoma ecotypes (CE). CE9 and CE10 were proinflammatory, characterized by higher immunoreactivity, and were associated with favorable survival outcomes. Ratios of cell states and ecotypes had better prognostic abilities than a single cell state or ecotype. A total of 1265 differentially expressed genes were identified between samples with high and low levels of C9 or CE10. These genes were partitioned into three co-expressed modules, which were associated with tumor cells and immune cells. Pogz was identified to be linked with immune cell genes and the chemotherapy response of paclitaxel. Collectively, the survival of HGSOC patients is correlated with specific cell states and ecotypes.

Learning linear optical circuits with coherent states

We analyze the energy and training data requirements for supervised learning of an M-mode linear optical circuit by minimizing an empirical risk defined solely from the action of the circuit on coherent states. When the linear optical circuit acts non-trivially only on k < M unknown modes (i.e. a linear optical k-junta), we provide an energy-efficient, adaptive algorithm that identifies the junta set and learns the circuit. We compare two schemes for allocating a total energy, E, to the learning algorithm. In the first scheme, each of the T random training coherent states has energy E/T . In the second scheme, a single random MT-mode coherent state with energy E is partitioned into T training coherent states. The latter scheme exhibits a polynomial advantage in training data size sufficient for convergence of the empirical risk to the full risk due to concentration of measure on the (2MT−1) -sphere. Specifically, generalization bounds for both schemes are proven, which indicate that for ε-approximation of the full risk by the empirical risk with high probability, O(E2/3M2/3/ϵ2/3) training states are sufficient for the first scheme and O(E1/3M1/3/ϵ2/3) training states are sufficient for the second scheme.

‘Fears and Scruples Shake Us’: Ecological and Perceptual Instability in Macbeth

ABSTRACT With the aid of his wife, Macbeth searches for a ‘single state’ of selfhood that will place him unequivocally and permanently in a position of ultimate power. From the start of the play, however, Macbeth is told – and seems to know – that such an ideal is impossible. Macbeth’s Scotland is a world of spatial and temporal motion that permits no pause in place or time and therefore no location or moment within which to describe any experiential situation or settle into any political or personal position. Self-knowledge is not won by human beings in philosophical or academic isolation but in synchronicity and symbiosis with environmental forces. The ecologies of the play – the witches, earthquake, the foul air, thunder and lightning – ensure the relentlessly dynamic and imbricated phenomenology of space and time that stops up the access to success for the Macbeths.

Approximate Functionals for Multistate Density Functional Theory.

Recently Lu and Gao [J. Phys. Chem. Lett. 2022, 13 (33), 7762-7769] published a new, rigorous density functional theory for excited states and proved that the projection of the kinetic and electron-repulsion operators into the subspace of the lowest electronic states are a universal functional of the matrix density D(r). This is the first attempt to find an approximation to the multistate universal functional . It is shown that (i) does not explicitly depend on the number of electronic states and (ii) is an analytic matrix functional. The Thomas-Fermi-Dirac-von Weizsäcker model and the correlation energy of the homogeneous electron gas are turned into matrix functionals guided by two principles: that each matrix functional should transform properly under basis set transformations and that the ground state functional should be recovered for a single electronic state. Lieb-Oxford-like bounds on the average kinetic and electron-repulsion energies in the subspace are given. When evaluated on the numerically exact matrix density of LiF, this simple approximation reproduces the matrix elements of the electron-repulsion operator in the basis of the exact eigenstates accurately for all bond lengths. In particular the off-diagonal elements of the effective Hamiltonian that come from the interactions of different electronic states can be calculated with the same or better accuracy than the diagonal elements. Unsurprisingly, the largest error comes from the kinetic energy functional. More exact conditions that constrain the functional form of are needed to go beyond the local density approximation.

Spatially Dependent in-Gap States Induced by Andreev Tunneling through a Single Electronic State.

By using low-temperature scanning tunneling microscopy and spectroscopy (STM/STS), we observe in-gap states induced by Andreev tunneling through a single impurity state in a low carrier density superconductor (NaAlSi). The energy-symmetric in-gap states appear when the impurity state is located within the superconducting gap. In-gap states can cross the Fermi level, and they show X-shaped spatial variation. We interpret the in-gap states as a consequence of the Andreev tunneling through the impurity state, which involves the formation or breakup of a Cooper pair. Due to the low carrier density in NaAlSi, the in-gap state is tunable by controlling the STM tip-sample distance. Under strong external magnetic fields, the impurity state shows Zeeman splitting when it is located near the Fermi level. Our findings not only demonstrate the Andreev tunneling involving single electronic state but also provide new insights for understanding the spatially dependent in-gap states in low carrier density superconductors.

Experiment and analysis of air spring vertical seismic isolation device

To address the shortcomings of poor isolation performance in traditional rubber vertical seismic isolation devices and the large deformation in spring vertical seismic isolation devices, an air spring vertical seismic isolation device (ASVSID) utilizing compressed air for seismic isolation was proposed. The construction of the ASVSID was introduced, the material properties of the air spring (AS) capsule skin based on single and biaxial stress state were tested, the vertical mechanical properties of the ASVSID were experimentally studied, and the finite element (FE) method and the calculation method of the ASVSID based on biaxial stress state of the AS capsule skin were given. The research results show that the load displacement of the ASVSID exhibits nonlinear characteristics, and its vertical mechanical properties are obviously affected by air pressure of the AS. The material properties of the AS capsule skin are different under single and biaxial stress state. Through comparison with the test results, the proposed FE method based on biaxial stress state of the AS capsule skin can accurately simulate the ASVSID. In addition, the calculation method based on biaxial stress state of the AS capsule skin also can accurately calculate the vertical mechanical property parameters of the ASVSID.

Fluctuation in cortical excitation/inhibition modulates capability of attention across time scales ranging from hours to seconds.

Sustained attention, as the basis of general cognitive ability, naturally varies across different time scales, spanning from hours, e.g. from wakefulness to drowsiness state, to seconds, e.g. trial-by-trail fluctuation in a task session. Whether there is a unified mechanism underneath such trans-scale variability remains unclear. Here we show that fluctuation of cortical excitation/inhibition (E/I) is a strong modulator to sustained attention in humans across time scales. First, we observed the ability to attend varied across different brain states (wakefulness, postprandial somnolence, sleep deprived), as well as within any single state with larger swings. Second, regardless of the time scale involved, we found highly attentive state was always linked to more balanced cortical E/I characterized by electroencephalography (EEG) features, while deviations from the balanced state led to temporal decline in attention, suggesting the fluctuation of cortical E/I as a common mechanism underneath trans-scale attentional variability. Furthermore, we found the variations of both sustained attention and cortical E/I indices exhibited fractal structure in the temporal domain, exhibiting features of self-similarity. Taken together, these results demonstrate that sustained attention naturally varies across different time scales in a more complex way than previously appreciated, with the cortical E/I as a shared neurophysiological modulator.

Hydrogen-iodine scattering. II. Rovibronic analysis and collisional dynamics.

Our recently published [Weike et al., J. Chem. Phys. 159, 244119 (2023)] spin-orbit coupled diabatic potential energy model for HI is used in a thorough analysis of bound and quasi-bound states as well as elastic and inelastic processes in H + I collisions. The potential energy model, designed explicitly for studying scattering, accurately describes the various couplings in the system, which lead to complex dynamics. Ro-vibronic bound and quasi-bound states related to the adiabatic electronic ground state and an excited electronic state are analyzed. Calculations using the full 104 × 104 diabatic matrix model or a single adiabatic state are compared in order to investigate approximations in the latter. Elastic and inelastic scattering cross sections as well as thermal rates between the ground and first excited fine structure levels of iodine are computed for collision energies up to 12 500 cm-1. Resonances related to the quasi-bound states are analyzed in terms of their energy, width, lifetime, and decay probabilities. The effect of different resonances on the thermal rates is discussed. Resonances between 30 000 and 40 000 cm-1 are also studied for selected values of the total angular momentum, in particular their decay probabilities into different final states of iodine and hence their potential effect on branching ratios in photodissociation of HI.

The EQ-5D-5L valuation study for Trinidad and Tobago

PurposeThe 2016 EQ-5D-3L value set for Trinidad and Tobago (T&T) allows for the calculation of EQ-5D-5L values via the crosswalk algorithm. The 2016 value set was based on methods predating the EQ-VT protocol, now considered the gold standard for developing EQ-5D value sets. Furthermore, direct elicitation of EQ-5D-5L is preferred over crosswalked values. This study aimed to produce an EQ-5D-5L value set for T&T.MethodsA representative sample (age, sex, geography) of adults each completed 10 composite Time Trade-Off (cTTO) tasks and 12 Discrete Choice Experiment (DCE) tasks in face-to-face interviews. The cTTO data were analyzed using a Tobit model that corrects for heteroskedasticity. DCE data were analyzed using a mixed logit model. The cTTO and DCE data were combined in hybrid models.ResultsOne thousand and seventy-nine adults completed the valuation interviews. Among the modelling approaches that were explored, the hybrid heteroskedastic Tobit model produced all internally consistent, statistically significant coefficients, and performed best in terms of out-of-sample predictivity for single states. Compared to the existing EQ-5D-5L crosswalk set, the new value set had a higher number of negative values (236 or 7.6% versus 21 or 0.7%). The mean absolute difference was 0.157 and the correlation coefficient between the two sets was 0.879.ConclusionThis study provides a value set for the EQ-5D-5L for T&T using the EQ-VT protocol. We recommend this value set for QALY computations relating to T&T.

Learning a quantum channel from its steady-state

We present a scalable method for learning local quantum channels using local expectation values measured on a single state—their steady state. Our method is inspired by the algorithms for learning local Hamiltonians from their ground states. For it to succeed, the steady state must be non-trivial, and therefore the channel needs to be non-unital. Such non-unital channels are readily implementable on present day quantum computers using mid-circuit measurements or RESET gates. We demonstrate that the full structure of such channels is encoded in their steady states, and can be learned efficiently using only the expectation values of local observables on these states. We emphasize two immediate applications to illustrate our approach: (i) Using engineered dissipative dynamics, we offer a straightforward way to assess the accuracy of a given noise model in a regime where all qubits are actively utilized for a significant duration. (ii) Given a parameterized noise model for the entire system, our method can learn its underlying parameters. We demonstrate both applications using numerical simulations and experimental trials conducted on an IBMQ machine.

A novel tuning range search method for single soliton state micro-comb generation

Abstract Mode-locked single-soliton state micro-comb (SSC) can be achieved in a miniaturized highly compact platform by pumping the micro-resonator with a single-frequency continuous wave laser. However, a significant challenge lies in effectively exploring the tuning range of pump power, spanning over hundreds of mW, as well as the detuning range and tuning speed in the range of hundreds of MHz and the order of MHz/s to GHz/s respectively. Here, we delve into a simulation model, considering thermal effects to ensure that the simulation accurately reflects the power drop and thermal detuning observed in the experimental process. Our simulation model, featuring precision scanning and iterative parameter demonstrations, has proven instrumental in accurately exploring the optimal tuning range for the existence of SSC to a few MHz. This provides a foundation for controlled and predictable SSC generation experiments.

UZBEKISTAN’S STRATEGIC APPROACHES OF TO THE SHANGHAIS COOPERATION ORGANIZATION: EXPLORING OPPORTUNITIES FOR “MIDDLE POWER” DIPLOMACY

The article studies the key factors (security, geopolitics, economy) that directly impact the strategy of the Republic of Uzbekistan towards the Shanghai Cooperation Organization (SCO). It is revealed that this strategy always has been based on following priorities: (1) ensuring national and regional security in Central Asia (2) preserving independence in foreign policy (3) balancing the interests of major powers in Central Asia (4) preventing hegemony of a single state or a group of states within the SCO (5) using the SCO to implement Uzbekistan's priorities in trade, economy and transport interconnectivity. Due to the current transformation of the SCO and intensification of geopolitical competition among its major members the necessity of applying middle-power diplomacy within the Organization has been identified. Uzbekistan's potential to conduct «middle power diplomacy" in the SCO has been justified.

The issues of development and functioning of common market of medical equipment and articles within the framework of the Eurasian Economic Union

The market of medical devices within the framework of the Eurasian Economic Union is regulated by special legislation that ensures formation of common market and compliance of products with all necessary requirements. This allows to ensure high level of quality of medical equipment and articles that contributes into improving safety and efficiency of medical procedures. The development of uniform requirements, considering world practices, is an important step, since it allows to guarantee high standards not only at level of single states, but also at level of the entire Union. This approach facilitates reinforcement of confidence to medical production of manufacturers from he Eurasian Economic Union countries. The article examines normative legal base regulating issues of formation and functioning of common market of medical equipment and articles within the framework of the Eurasian Economic Union. The analysis of normative legal base of the Russian Federation in section related to medical articles market was carried out. The analysis of the regulatory framework of the Russian Federation in terms of issues related to the market of medical devices was also carried out. The corresponding conclusions were made based on the study results.

Historical Reality as an Integral System in the Context of the Development of Kazakh Culture and Islamic Traditions

This study examines the issues of historical reality as an integral system in the context of the development of the Kazakh culture of epic singing and versification. Songs from a certain era were the recognition of historical moments such as the “national catastrophe” of the XVIII century, reflecting the opposition to the colonisation of the XIX century and the participation of famous historical figures in the 1916 national liberation uprising. The purpose of this study is to investigate the Kazakh folk epic poetry represented by legends, songs and poems, which reflect the various cultural events of the Kazakh historical reality of national evolvement and development. The primary approach used in this study is the combination of a systematic analysis of the materials from Kazakh national song and poetic culture with the logical development of the results and conclusions of this study. The main results of this study are the establishment of the conditional reliability of the events described in historical poetry. Assessing the historical reality of a single state in general and Kazakhstan in particular, one should consider the fact that not all historical events that have taken place were reflected in the works of national poets and became part of the national epic poetry. The various historical events and circumstances that occurred in the country throughout its history should also be considered. The prospects for subsequent study in this area are determined by the importance of studying the origins and traditions of the folklore of the Republic of Kazakhstan as the historical reality of the development of the state, which forms an integral system of the historical existence of the Kazakh people. The practical significance of this study lies in its potential to apply its findings to achieve a comprehensive understanding of specific phases in the evolution of Kazakh song and oral folklore, within the broader context of Kazakh cultural traditions.