Correct Scaling Research Articles

Precise determination of the low-energy electronuclear Hamiltonian of LiY1−xHoxF4

We use complementary optical spectroscopy methods to directly measure the lowest crystal-field energies of the rare-earth quantum magnet LiY$_{1-x}$Ho$_{x}$F$_{4}$, including their hyperfine splittings, with more than 10 times higher resolution than previous work. We are able to observe energy level splittings due to the $^6\mathrm{Li}$ and $^7\mathrm{Li}$ isotopes, as well as non-equidistantly spaced hyperfine transitions originating from dipolar and quadrupolar hyperfine interactions. We provide refined crystal field parameters and extract the dipolar and quadrupolar hyperfine constants ${A_J=0.02703\pm0.00003}$ $\textrm{cm}^{-1}$ and ${B= 0.04 \pm0.01}$ $\textrm{cm}^{-1}$, respectively. Thereupon we determine all crystal-field energy levels and magnetic moments of the $^5I_8$ ground state manifold, including the (non-linear) hyperfine corrections. The latter match the measurement-based estimates. The scale of the non-linear hyperfine corrections sets an upper bound for the inhomogeneous line widths that would still allow for unique addressing of a selected hyperfine transition. e.g. for quantum information applications. Additionally, we establish the far-infrared, low-temperature refractive index of LiY$_{1-x}$Ho$_{x}$F$_{4}$.

Performance evaluation of satellite-based rainfall estimates for hydrological modeling over Bilate river basin, Ethiopia

PurposeThe purpose of this study is to address a highly heterogeneous rift margin environment and exhibit considerable spatiotemporal hydro-climatic variations. In spite of limited, random and inaccurate data retrieved from rainfall gauging stations, the recent advancement of satellite rainfall estimate (SRE) has provided promising alternatives over such remote areas. The aim of this research is to take advantage of the technologies through performance evaluation of the SREs against ground-based-gauge rainfall data sets by incorporating its applicability in calibrating hydrological models.Design/methodology/approachSelected multi satellite-based rainfall estimates were primarily compared statistically with rain gauge observations using a point-to-pixel approach at different time scales (daily and seasonal). The continuous and categorical indices are used to evaluate the performance of SRE. The simple scaling time-variant bias correction method was further applied to remove the systematic error in satellite rainfall estimates before being used as input for a semi-distributed hydrologic engineering center's hydraulic modeling system (HEC-HMS). Runoff calibration and validation were conducted for consecutive periods ranging from 1999–2010 to 2011–2015, respectively.FindingsThe spatial patterns retrieved from climate hazards group infrared precipitation with stations (CHIRPS), multi-source weighted-ensemble precipitation (MSWEP) and tropical rainfall measuring mission (TRMM) rainfall estimates are more or less comparably underestimate the ground-based gauge observation at daily and seasonal scales. In comparison to the others, MSWEP has the best probability of detection followed by TRMM at all observation stations whereas CHIRPS performs the least in the study area. Accordingly, the relative calibration performance of the hydrological model (HEC-HMS) using ground-based gauge observation (Nash and Sutcliffe efficiency criteria [NSE] = 0.71; R2 = 0.72) is better as compared to MSWEP (NSE = 0.69; R2 = 0.7), TRMM (NSE = 0.67, R2 = 0.68) and CHIRPS (NSE = 0.58 and R2 = 0.62).Practical implicationsCalibration of hydrological model using the satellite rainfall estimate products have promising results. The results also suggest that products can be a potential alternative source of data sparse complex rift margin having heterogeneous characteristics for various water resource related applications in the study area.Originality/valueThis research is an original work that focuses on all three satellite rainfall estimates forced simulations displaying substantially improved performance after bias correction and recalibration.

Pilot study evaluating the therapeutic effects of a new pre-mixed injectable product of low molecular weight (LMW) hyaluronic acid added to six amino acids (HY6AA +Formula) in facial skin aging

Introduction: Skin aging is a complex biological phenomenon, it is the result of an intrinsic decline in cellular functions due to age and genetically programmed, added to a continuous exposure of various harmful external factors that influence its trend. Both mechanisms modify the structure of the extracellular matrix (ECM) by acting on the quantity and composition of its proteins: type III collagen constitutes 50% of the collagen in the dermis of the neonatal skin but only 5% of the collagen in the aging adult skin, type IV collagen, an important component of the basement membrane, forms anchor plates between types of structural collagen, it decreases with age after 35 years affecting the thickness of the epithelial basement membrane significantly. Aims of the study: The Aim of the study was to evaluate the therapeutic effects of a new pre-mixed injectable product of not cross-linked LMW Hyaluronic Acid (50-250 KDaltons) added to a specific mixture of six amino acids ( HY6AA + Formula) to improve the signs of chrono and photo-aging of the skin of the facial area, through a simple and minimally invasive injectable procedure with fast obtaining results. Materials and methods: The open clinical pilot trial was conducted by two centres under medical control. 3,5 ml HY6AA+Formula was performed by injecting 3 times at intervals of 2 weeks each. The Visia device as well as the GAIS (Global Aesthetic Improvement Scale) and VAS scale, the skin elasticity scale and the wrinkle correction scale were used for the assessment. Efficacy evaluations were performed previously to each injection treatment, performed every two week for three times, and 4 weeks after the third injection. Skin elasticity was evaluated by Pinching Test immediately after each treatment and at 4 weeks after the third injection. Conclusions: The photo analysis by Visia device proves the significant effectiveness of HY6AA + Formula. The data recorded on the skin texture improvement, dyschromia and skin elasticity are very encouraging, especially considering the minimal invasiveness of the procedure and the limited number of sessions required. The improvement of skin quality in most cases occur after the first treatment, and as the treatment protocol progresses, patients' feelings and their individual assessment of skin quality also gradually improve.

An assessment of orbital energy corrections for the direct random phase approximation and explicit σ-functionals

The σ-functionals developed in the Görling group [J. Chem. Phys. 154, 014104 (2021); ibid. 155, 134111 (2021)] facilitate impressive improvements over the direct random phase approximation (dRPA) and provide chemical accuracy for a broad spectrum of benchmarks concerning reaction energies and barrier heights, but struggle considerably with problems related to self-interaction. We herein assess two possible corrections to the orbital energies in the construction of the non-interacting response function for the dRPA and σ-functionals: (i) The scaling corrections of Yang and co-workers, which have been successfully applied within DFT, and (ii) the admixture of exact exchange in a post-SCF fashion similar to some double-hybrid functionals. An analysis of static shifts to the virtual orbital energies reveals the choice of corrections to be a difficult balancing act, as the effect of the corrections vastly differs between benchmark sets. Scaling corrections are found to provide substantial improvements to self-interaction problems, but seem adversarial for thermochemistry in combination with RPA. The post-SCF inclusion of exact exchange in combination with a semicanonical projection is shown to retain the accuracy of σ-functionals over a wide range of exact exchange admixtures and reduces the computational cost of the SCF calculation compared to hybrid functionals, but provides smaller improvements to self-interaction problems than scaling corrections for the most challenging cases.

Exact bounds on the energy gap of transverse-field Ising chains by mapping to random walks

Based on a relationship with continuous-time random walks discovered by Igl\'oi, Turban, and Rieger [Phys. Rev. E 59, 1465 (1999)], we derive exact lower and upper bounds on the lowest energy gap of open transverse-field Ising chains, which are explicit in the parameters and are generally valid for arbitrary sets of possibly random couplings and fields. In the homogeneous chain and in the random chain with uncorrelated parameters, both the lower and upper bounds are found to show the same finite-size scaling in the ferromagnetic phase and at the critical point, demonstrating the ability of these bounds to infer the correct finite-size scaling of the critical gap. Applying the bounds to random transverse-field Ising chains with coupling-field correlations, a model which is relevant for adiabatic quantum computing, the finite-size scaling of the gap is shown to be related to that of sums of independent random variables. We determine the critical dynamical exponent of the model and reveal the existence of logarithmic corrections at special points.

Topological squashed entanglement: Nonlocal order parameter for one-dimensional topological superconductors

Identifying entanglement-based order parameters characterizing topological systems, in particular topological superconductors and topological insulators, has remained a major challenge for the physics of quantum matter in the last two decades. Here we show that the end-to-end, long-distance, bipartite squashed entanglement between the edges of a many-body system, defined in terms of the edge-to-edge quantum conditional mutual information, is the natural nonlocal order parameter for topological superconductors in one dimension as well as in quasi one-dimensional geometries. For the Kitaev chain in the entire topological phase, the edge squashed entanglement is quantized to log(2)/2, half the maximal Bell-state entanglement, and vanishes in the trivial phase. Such topological squashed entanglement exhibits the correct scaling at the quantum phase transition, is stable in the presence of interactions, and is robust against disorder and local perturbations. Edge quantum conditional mutual information and edge squashed entanglement defined with respect to different multipartitions discriminate topological superconductors from symmetry breaking magnets, as shown by comparing the fermionic Kitaev chain and the spin-1/2 Ising model in transverse field. For systems featuring multiple topological phases with different numbers of edge modes, like the quasi 1D Kitaev ladder, topological squashed entanglement counts the number of Majorana excitations and distinguishes the different topological phases of the system. In fact, we show that the edge quantum conditional mutual information and the edge squashed entanglement remain valid detectors of topological superconductivity even for systems, like the Kitaev tie with long-range hopping, featuring geometrical frustration and a suppressed bulk-edge correspondence.

Localized orbital scaling correction for periodic systems.

Density functional theory offers accurate structure prediction at acceptable computational cost, but commonly used approximations suffer from delocalization error; this results in inaccurate predictions of quantities such as energy band gaps of finite and bulk systems, energy level alignments, and electron distributions at interfaces. The localized orbital scaling correction (LOSC) was developed to correct delocalization error by using orbitals localized in space and energy. These localized orbitals span both the occupied and unoccupied spaces and can have fractional occupations in order to correct both the total energy and the one-electron energy eigenvalues. We extend the LOSC method to periodic systems, in which the localized orbitals employed are dually localized Wannier functions. In light of the effect of the bulk environment on the electrostatic interaction between localized orbitals, we modify the LOSC energy correction to include a screened Coulomb kernel. For a test set of semiconductors and large-gap insulators, we show that the screened LOSC method consistently improves the band gap compared to the parent density functional approximation.

Coupled Electron Pair-Type Approximations for Tensor Product State Wave Functions.

Size extensivity, defined as the correct scaling of energy with system size, is a desirable property for any many-body method. Traditional configuration interaction (CI) methods are not size extensive, hence the error increases as the system gets larger. Coupled electron pair approximation (CEPA) methods can be constructed as simple extensions of a truncated CI that ensures size extensivity. One of the major issues with the CEPA and its variants is that singularities arise in the amplitude equations when the system starts to be strongly correlated. In this work, we extend the traditional Slater determinant based coupled electron pair approaches like CEPA-0, averaged coupled-pair functional, and average quadratic coupled-cluster to a new formulation based on tensor product states (TPS). We show that a TPS basis can often be chosen such that it removes the singularities that commonly destroy the accuracy of CEPA based methods. A suitable TPS representation can be formed by partitioning the system into separate disjoint clusters and forming the final wave function as the tensor product of the many body states of these clusters. We demonstrate the application of these methods on simple bond breaking systems such as CH4 and F2 where determinant based CEPA methods fail. We further apply the TPS-CEPA approach to stillbene isomerization and few planar π-conjugated systems. Overall, the results show that the TPS-CEPA method can remove the singularities and provide improved numerical results compared to common electronic structure methods.

Next-to-leading order corrections to decays of the heavier CP-even Higgs boson in the two Higgs doublet model

We investigate the impact of electroweak (EW), scalar and QCD corrections to the full set of decay branching ratios of an additional CP-even Higgs boson (H) in the two Higgs doublet model with a softly broken Z2 symmetry. We employ the improved gauge independent on-shell scheme in the renormalized vertices. We particularly focus on the scenario near the alignment limit in which couplings of the discovered 125 GeV Higgs boson (h) coincide with those of the standard model while the Hhh coupling vanishes at tree level. The renormalized decay rate for H→hh can significantly be changed from the prediction at tree level due to non-decoupling loop effects of additional Higgs bosons, even in the near alignment case. We find that the radiative corrections to the branching ratio of H→hh can be a few ten percent level in the case with the masses of additional Higgs bosons being degenerate under the constraints of perturbative unitarity, vacuum stability and the EW precision data. Further sizable corrections can be obtained for the case with a mass difference among the additional Higgs bosons.

Glucagon and Its Underutilization in Diabetes Self-Management: A Teachable Moment.

Commentaries| July 08 2023 Glucagon and Its Underutilization in Diabetes Self-Management: A Teachable Moment Katherine Wolfe; Katherine Wolfe 1Department of Pharmacy, Spartanburg Medical Center, Spartanburg, SC Search for other works by this author on: This Site PubMed Google Scholar Jennifer Nicole Clements 0000-0003-2431-6651 Jennifer Nicole Clements 2Department of Nursing Administration, Spartanburg Regional Healthcare System, Spartanburg, SC Corresponding author: Jennifer Nicole Clements, jclements1027@outlook.com Search for other works by this author on: This Site PubMed Google Scholar Corresponding author: Jennifer Nicole Clements, jclements1027@outlook.com Clin Diabetes 2023;41(2):286–288 https://doi.org/10.2337/cd22-0015 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Cite Icon Cite Get Permissions Citation Katherine Wolfe, Jennifer Nicole Clements; Glucagon and Its Underutilization in Diabetes Self-Management: A Teachable Moment. Clin Diabetes 1 April 2023; 41 (2): 286–288. https://doi.org/10.2337/cd22-0015 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsClinical Diabetes Search Advanced Search A woman with type 1 diabetes of 14 years’ duration is admitted to a noncritical care unit after presenting to the emergency center with hypoglycemia. According to her family member and emergency medical services personnel, the person’s blood glucose was noted to be 28 mg/dL. Pharmacy records indicate that her treatment regimen before admission included insulin glargine 40 units subcutaneously in the morning and insulin lispro 5 units subcutaneously before each meal, with a correction factor of 24 (1 unit of insulin for every 24 mg/dL above target) and that she received enough blood glucose monitoring supplies to perform four checks per day. Normal organ function is noted, and her A1C is found to have decreased from 9 to 6.2% in the past 3 months. During her 4-day hospitalization, her insulin therapy included insulin glargine 20 units subcutaneously in the morning and insulin lispro with a correction scale of 0–8... You do not currently have access to this content.

STUDY ON THE RELATIONSHIP BETWEEN LEISURE PARTICIPATION, VALUE AND MOOD REGULATION OF FESTIVAL PARTICIPANTS

BackgroundNowadays, we are in an era of national leisure. Festival is not only a cultural exchange activity, but also a way of public leisure. Festival participants usually have a strong curiosity about where the festival is held. They usually hope to let them know the lifestyle of a region through festivals like local residents. The theme of this study is the interactive relationship between participants' leisure participation, leisure value and their emotional regulation.Research Objects and MethodsBased on theoretical analysis, expert consultation and reference to the research of others, this study uses the self-made Richter five scale to investigate the leisure participation and leisure value of festival participants through the combination of online survey and on-site survey And three potential emotional variables and their relationships. Respondents are limited to those who have participated in festival activities. Finally, 420 valid questionnaires were collected and processed by statistical analysis software SPSS 26. 0 and Amos. Through reliability and validity test, goodness of fit test, structural model analysis and scale correction analysis, the final model path coefficient is obtained. Then, IPDE is a three-level score: 0 normal, l prominent, 2 in line with the diagnostic criteria and morbid. How long can a behavior last be considered as a personality trait? There is no unified view in the world. IPDE stipulates at least 5 years. ICD-10 requires at least 3 items for each type of diagnosis, while DSM-IIIR requires 4-5 items, and the score of at least one item is 2 points. If the positive score is more than 10 (one score is also required to be 2), but it does not meet any kind of network cognitive impairment, it will be diagnosed as other types of personality. No matter what kind of diagnostic system, it requires at least one item that meets the diagnostic criteria, and the behavior described has appeared before the age of 25. Who has developed a set of software for IPDE. As long as the score of each item is entered, the result can be obtained.ResultsThe empirical study found that the subjects were mainly behavioral participation. Participating in festival activities has good psychological, cultural and social values. Leisure participation has a more significant impact on leisure value, followed by leisure value on psychological well-being, followed by leisure participation on psychological well-being, but the three groups have reached a significant level and interact with each other, indicating the leisure participation, leisure value and mental health of festival participants. Leisure value is an intermediary variable. After the change of leisure participation, the impact on emotion is more significant.ConclusionsParticipants' leisure participation in festival activities is the basis for realizing value and creating happiness. People can choose some brand festivals and well-known festivals according to their time, energy and hobbies, actively participate and enrich their life experience. Improve the quality of your life. The deficiency of this study is that the representativeness of the sample needs to be further optimized. This study will help festival organizers summarize their successful experience and shortcomings, constantly explore new operation ideas, improve and promote their own operation mode, give full play to their respective advantages, mobilize the enthusiasm of the masses, and then design various forms of activities. The content adapts to the local environment and serves cultural exchanges.AcknowledgementsSupported by a project grant from key scientific research project of higher education institutions in Henan Province (soft science) (Grant No.22B630034).

Modification of the Redlich-Kwong-Aungier Equation of State to Determine the Main Thermodynamic Parameters in the Pure Liquid CO2 Region

The most important parameters for determining the state of real gas and the thermodynamic properties of the working fluid in a pure liquid region are pressure, specific volume, enthalpy and entropy. The paper presents a modified Redlich-Kwong-Aungier equation of state for determining pressure, specific volume, enthalpy and entropy in the pure liquid phase of real gas. CO2 was selected as the studied working fluid. When solving this problem, the author identified the main parameters of liquid carbon dioxide thermo-dynamics with the least error in comparison with experimental data in a wide range from 220 K to 300 K. It is possible to calculate pressure, specific volume, density, enthalpy and entropy of liquid CO2 with the help of the proposed method, for which the initial data are temperature, density, critical properties, molar mass and acentric factor of the working fluid. In particular, a modified Redlich-Kwong-Aungier equation is used to calculate the pressure of the working fluid. The author proposes a correlation equation of the scale correction, which is used in the Redlich-Kwong-Aungier equation for CO2 in the region of pure liquid phase. The results obtained for the pressure, enthalpy and entropy of liquid CO2 showed good agreement with the basic values, which provides the application of the proposed method in the field of pure liquid CO2, limited by the temperature range from 220 K to 300 K. The simplicity of the equation of state and the small number of empirical coefficients allows to use this method to solve practical problems of computational gas dynamics without spending a lot of time on calculations.

Modification of scaled equation of state to determine the pressure in the CO2 critical region

The object of the research is carbon dioxide and its pressure distribution depending on the range of temperature and density in the region of the critical point. One of the most problematic areas of methods for finding thermodynamic parameters of a real gas is insufficient accuracy in calculations in the places of occurrence and rapid development of fluctuation phenomena, which are inherent in phase transitions of the first and second terms. For a more detailed and accurate description of the nature of the thermodynamic parameters in the region of the critical point, scaling and crossover equations of state were developed. Such equations, due to the presence of regular and scaling parts, allow describing the thermodynamic parameters of a real gas not only directly near the critical point, but also at some distance from it, maintaining a small error relative to experimental data. The article proposes an equation of state, which contains a scaling part described according to the rules of statistical physics, and a regular part in the form of a classical cubic equation of state. The equation is used to calculate the pressure of carbon dioxide in the region around the critical point from 300 K to 305 K. The article proposes a correlation equation for the scaling correction of the regular part (Redlich-Kwong-Aungier model) of the crossover equation of state, which is related to the scaling part the equation of state is a crossover function. The obtained results for the pressure in the critical region showed good agreement with the baseline data. The error relative to the experimental data is halved compared to the original model of the Redlich-Kwong-Aungier equation. The obtained results ensure the applicability of the proposed method in the temperature range from 300 K to 305 K. Due to the simplicity of the form of the regular equation of state and the small number of empirical coefficients for the large-scale equation of state, the obtained method can be used for practical problems of computational hydrodynamics without spending a lot of computing time.

ϕ meson properties in nuclear matter from QCD sum rules with chirally separated four-quark condensates

The modification of the $\ensuremath{\phi}$ meson spectrum in nuclear matter is studied in an updated QCD sum rule analysis, taking into account recent improvements in properly treating the chiral invariant and breaking components of four-quark condensates. Allowing both mass and decay width to change at finite density, the QCD sum rule analysis determines certain combinations of changes for these parameters that satisfy the sum rules equally well. A comprehensive error analysis, including uncertainties related to the behavior of various condensates at linear order in density, the employed renormalization scale and perturbative corrections of the Wilson coefficients, is used to compute the allowed ranges of these parameter combinations. We find that the $\ensuremath{\phi}$ meson mass shift in nuclear matter is especially sensitive to the strange sigma term ${\ensuremath{\sigma}}_{sN}$, which determines the decrease of the strange quark condensate in nuclear matter. Specifically, we obtain a linear relation between the width ${\mathrm{\ensuremath{\Gamma}}}_{\ensuremath{\phi}}$ and mass shift $\mathrm{\ensuremath{\Delta}}{m}_{\ensuremath{\phi}}$ given as ${\mathrm{\ensuremath{\Gamma}}}_{\ensuremath{\phi}}=a\mathrm{\ensuremath{\Delta}}{m}_{\ensuremath{\phi}}+b{\ensuremath{\sigma}}_{sN}+c$ with $a=({3.947}_{\ensuremath{-}0.130}^{+0.139})$, $b=({0.936}_{\ensuremath{-}0.177}^{+0.180})$ and $c=\ensuremath{-}({7.707}_{\ensuremath{-}5.679}^{+4.791})\text{ }\text{ }\mathrm{MeV}$.

Describing Chemical Reactivity with Frontier Molecular Orbitalets.

Locality in physical space is critical in understanding chemical reactivity in the analysis of various phenomena and processes in chemistry, biology, and materials science, as exemplified in the concepts of reactive functional groups and active sites. Frontier molecular orbitals (FMOs) pinpoint the locality of chemical bonds that are chemically reactive because of the associated orbital energies and thus have achieved great success in describing chemical reactivity, mainly for small systems. For large systems, however, the delocalization nature of canonical molecular orbitals makes it difficult for FMOs to highlight the locality of the chemical reactivity. To obtain localized molecular orbitals that also reflect the frontier nature of the chemical processes, we develop the concept of frontier molecular orbitalets (FMOLs) for describing the reactivity of large systems. The concept of orbitalets was developed recently in the localized orbital scaling correction method, which aims for eliminating the delocalization error in common density functional approximations. Orbitalets are localized in both physical and energy spaces and thus contain both orbital locality and energy information. The FMOLs are thus the orbitalets with energies highest among occupied orbitalets and lowest among unoccupied ones. The applications of FMOLs to hexadeca-1,3,5,7,9,11,13,15-octaene in its equilibrium geometry, inter- and intra-molecular charge-transfer systems, and two transition states of a bifurcating reaction demonstrate that FMOLs can connect quantum mechanical treatments of chemical systems and chemical reactivities by locating the reactive region of large chemical systems. Therefore, FMOLs extend the role of FMOs for small systems and describe the chemical reactivity of large systems with energy and locality insight, with potentially broad applications.

THE PERSONAL TRAIT CORRELATED WITH THE NIGHT BLOOD PRESSURE LEVEL IN PATIENTS WITH ARTERIAL HYPERTENSION

Objective: The aim of our study was to determine associations between the personal trait of patients and the night blood pressure (BP) level in untreated arterial hypertension (AH) patients. Design and method: We nalysed database of several studies (200 AH patients without serious concomitant diseases). Ambulatory blood pressure monitoring (ABPM) (Spacelabs 90207) was performed after the washout period (3–7 days). After ABPM each patient completed the Russian version of the psychological questionnaire Minnesota Multiphasis Personality Inventory (MMPI) and the emotional intelligence questionnaire (EmIn, by Lyusin D.) (only 90 patients). We nalysed the following MMPI scales: L – lie scale, F – aggravation scale, K – correction scale, 1 (Hs) – hypochondria, 2 (D) – depression, 3 (Hy) – hysteria, 4 (Pd) – psychopathy, 6 (Pa) – rigidity of affect, 7 (Pt) – psychasthenia, 8 (Sc) – schrizothemia, 9 (Ma) – hypomania. We assessed the following EmIn scale scores: I - emotion self-awareness; II - management of one’s own emotions; III - control of emotional expression; IV - understanding others’ emotions; V- management of others’ emotions. We used Pearson correlation coefficient ®. Results: The initial mean ambulatory daytime systolic BP (SBP) was 142.1 ± 14.2, diastolic (DBP) - 89.5 ± 10.1 mm Hg), age - 52,7 ± 12.2 years.(M ± SD). We found the following significant correlations: 1) 9 scale scores of MMPI (optimism, good mood, cheerfulness level) had negative relationships with the night DBP (r = -0,17, p < 0,05) and night SBP (r = -0,16, p < 0,05) levels; 2) IV scale scores of EmIn (understanding others’ emotions) had relations with the night DBP (r = -0,28, p < 0,05) and night SBP (r = -0,30, p < 0,05) levels; 3) V scale scores of EmIn (management of others’ emotions) had correlations with the night DBP (r = -0,26, p < 0,05) and night SBP (r = -0,26, p < 0,05) parameters. Optimism, cheerfulness, good mood (9 scale scores of MMPI) was associated with the night BP decrease, but intensification of the interpersonal emotional interactions (IV, V scale - management or understanding others’ emotions) can lead to the night BP increase. Conclusions: Optimism, cheerfulness, good mood was related with the night BP decrease. But intensification of the interpersonal emotional interactions can lead to the night BP increase.

Three-dimensional monopole-free CP N−1 models: behavior in the presence of a quartic potential

We investigate the phase diagram and the nature of the phase transitions in a three-dimensional model characterized by a global SU(N) symmetry, a local U(1) symmetry, and the absence of monopoles. It represents a natural generalization of the gauge monopole-free (MF) CP N−1 model, in which the fixed-length constraint (London limit) is relaxed. We have performed Monte Carlo simulations for N = 2 and 25, observing a finite-temperature transition in both cases, related to the condensation of a local gauge-invariant order parameter. For N = 2 results for the MF model are consistent with a weak first-order transition. A continuous transition would be possible only if scaling corrections were anomalously large. For N = 25 the results in the general MF model are also consistent with a first-order transition, that becomes weaker as the size of the field-length fluctuations decreases.

Quantum Spin Liquid Phase in the Shastry-Sutherland Model Detected by an Improved Level Spectroscopic Method

We study the spin-1/2 two-dimensional Shastry–Sutherland spin model by exact diagonalization of clusters with periodic boundary conditions, developing an improved level spectroscopic technique using energy gaps between states with different quantum numbers. The crossing points of some of the relative (composite) gaps have much weaker finite-size drifts than the normally used gaps defined only with respect to the ground state, thus allowing precise determination of quantum critical points even with small clusters. Our results support the picture of a spin liquid phase intervening between the well-known plaquette-singlet and antiferromagnetic ground states, with phase boundaries in almost perfect agreement with a recent density matrix renormalization group study, where much larger cylindrical lattices were used [J. Yang et al., Phys. Rev. B 105, L060409 (2022)]. The method of using composite low-energy gaps to reduce scaling corrections has potentially broad applications in numerical studies of quantum critical phenomena.

Computer Image Content Retrieval considering K-Means Clustering Algorithm

The traditional computer image content retrieval technology can only meet the specific requirements of customers; because of its general features, it cannot comply with the requirements of various environments, purposes, and time simultaneously. This study presents a computer image content retrieval method for a K-means clustering algorithm (KCA). The information collected by computer is preprocessed by K-means clustering algorithm, and the unacquired computer image is labeled based on the optimal learning order according to the KCA. The K-means clustering algorithm classifies the color, pattern, shape, and content of computer images and takes advantage of the invariance advantages of image content retrieval such as scale, rotation, illumination, and blur correction to effectively solve the recurring problems of computer images during retrieval and increase its accuracy. The results of the experiment indicate that the proposed K-means clustering algorithm can enhance the efficiency and performance effectively during image retrieval by computer as compared to the traditional content search algorithm and also help to quickly converge to the query content; it also shows that KCA has good robustness.

Flow Modelling for Wind Farm Control: 2D vs. 3D

Control-oriented models provide a basis for wind farm control to improve power production and reduce structural loading. Wake steering is considered to be one of the most promising techniques to achieve this. Wind turbine wakes under yaw misalignment are deflected downstream and have been shown to produce a curled or kidney-shaped structure. A Navier-Stokes based code called FRED was developed to model wind farm flow in 2D to perform yaw control. To tackle the differences between 2D and 3D flow, this work introduces a generalised continuity correction and wind turbine force scaling terms to the FRED framework. The effectiveness of approximating 3D results is tested by comparison with 3D simulations in the same framework. The continuity correction is now applicable to general wind directions and effective in reducing wake width and speed-up effects. The magnitude of wake deflection can be tuned using a force scaling term. However, we show that there remains a qualitative difference in the deflection profile downstream, as well as a difference in the propagation of yaw effects over time. From this study we can conclude that there is a fundamental difference between 2D and 3D flow physics in spatial and temporal dynamics which makes the 2D modelling approach challenging for control without further empirical adjustments. The necessary corrections are likely to be complex and non-physical, leading to a departure from the first principles foundation that FRED is developed from.