5,804 research outputs found

    Construction of Regional Economic Vitality Model

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    Regional economic vitality reflects the scale and development potential of a region’s economy. It largely determines the development of the city, and is also affected by many factors such as population competitiveness, corporate competitiveness, market vitality, innovation vitality, and environmental vitality. A pilot model was constructed with Hebei Province as the inspection area. Quantitative measurement of regional economic vitality was made by finding 21 indicators that indirectly or indirectly affect the economic vitality of Hebei Province. By analyzing the data of 21 indicators for nearly 10 years, the time series clustering is used to achieve the dimensionality reduction of the indicators. After the dimension reduction, it is divided into four categories: overall scale, development potential, market vitality, and innovation vitality. Construct the economic vitality structure model of Hebei Province, and determine the four types of contribution to economic vitality and compare them. On this basis, more accurately grasp the indicators that affect economic vitality and work out reasonable and effective action plans. From the perspective of human resources and corporate vitality, analyze how the action plan accurately affects the economic vitality of Hebei Province[1]. The 11 cities in Hebei Province are the target of regional economic vitality. The economic vitality structure model constructed uses the required contribution value to select priority indicators. Finally, the six indicators of GPD, GPD growth rate, fiscal revenue, fiscal revenue growth rate, number of industrial enterprises above designated size, and total profit of industrial enterprises above designated size were established for eleven cities in Hebei Province to construct a TOPSIS scoring model, and calculation rankings were conducted through MATLAB. Results The top three cities were Shijiazhuang, Tangshan and Cangzhou

    Effects of losses in the hybrid atom-light interferometer

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    Enhanced Raman scattering can be obtained by injecting a seeded light field which is correlated with the initially prepared collective atomic excitation. This Raman amplification process can be used to realize atom-light hybrid interferometer. We numerically calculate the phase sensitivities and the signal-to-noise ratios of this interferometer with the method of homodyne detection and intensity detection, and give their differences between this two methods. In the presence of loss of light field and atomic decoherence the measure precision will be reduced which can be explained by the break of the intermode decorrelation conditions of output modesComment: 9 pages, 7 figure

    Single-valued neutrosophic TODIM method based on cumulative prospect theory for multi-attribute group decision making and its application to medical emergency management evaluation

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    In recent years, emergent public health events happen from time to time, which puts forward new requirements for the establishment of a perfect medical emergency system. It is a new direction to evaluate the effectiveness of medical emergency systems from the perspective of multi-attribute group decision making (MAGDM) issues. In such article, we tend to resolve the MAGDM issues under single-valued neutrosophic sets (SVNSs) with TODIM method based on cumulative prospect theory (CPT). And the single-valued neutrosophic TODIM method based on CPT (CPT-SVNTODIM) for MAGDM issues are developed. This new method not only inherits advantages of classical TODIM method, but also has further improvement in some aspects. For example, we set up the entropy to calculate attribute weights for ensuring the more objective decision-making process. Furthermore, it is also an extension of MAGDM method to utilize single-valued neutrosophic numbers (SVNNs) to depict decision makers’ ideas. In addition, we introduce the application of CPT-SVN-TODIM method in the assessment of medical emergency management. And finally, the reliability of CPT-SVN-TODIM method is confirmed by comparing with some other methods

    Graphical Nonbinary Quantum Error-Correcting Codes

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    In this paper, based on the nonbinary graph state, we present a systematic way of constructing good non-binary quantum codes, both additive and nonadditive, for systems with integer dimensions. With the help of computer search, which results in many interesting codes including some nonadditive codes meeting the Singleton bounds, we are able to construct explicitly four families of optimal codes, namely, [[6,2,3]]p[[6,2,3]]_p, [[7,3,3]]p[[7,3,3]]_p, [[8,2,4]]p[[8,2,4]]_p and [[8,4,3]]p[[8,4,3]]_p for any odd dimension pp and a family of nonadditive code ((5,p,3))p((5,p,3))_p for arbitrary p>3p>3. In the case of composite numbers as dimensions, we also construct a family of stabilizer codes ((6,2p2,3))2p((6,2\cdot p^2,3))_{2p} for odd pp, whose coding subspace is {\em not} of a dimension that is a power of the dimension of the physical subsystem.Comment: 12 pages, 5 figures (pdf

    Influenza vaccination for heart failure patients: a cost-effectiveness analysis from the perspective of Chinese healthcare system

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    PurposeInfluenza infection induces cardiovascular events in heart failure (HF) patients, with potential risk reduction through vaccination. This study aims to evaluate the cost-effectiveness of influenza vaccination for HF patients in China.MethodsWe developed a Markov model with a 3-month cycle to simulate the cost-effectiveness of administering the influenza vaccine to patients with HF over a 3-year period. Patients in the model received either the influenza vaccine or a placebo, in addition to standard HF treatment. Cost data, sourced from the China Healthcare Statistic Yearbook and other public records, and effectiveness data from the IVVE (Influenza Vaccine to Prevent Adverse Vascular Events in HF) trial, were incorporated. Specifically, the cost of the influenza vaccine was 75 Chinese Yuan (CNY) (11 USD), the cost of hospitalization for heart failure (HHF) was 9,326 CNY (1,386 USD), and the cost of treatment for pneumonia was 5,984 CNY (889 USD). The study’s primary outcome, the incremental cost-effectiveness ratio (ICER), quantifies the incremental cost (CNY and USD) per incremental quality-adjusted life year (QALY). Additional outcomes included total cost, total effectiveness, incremental cost, and incremental effectiveness. We conducted one-way and probabilistic sensitivity analyses (PSA) to assess certainty and uncertainty, respectively. Scenario analysis, considering various situations, was performed to evaluate the robustness of the results.ResultsIn the base case analysis, influenza vaccine, compared to placebo, among Chinese HF patients, resulted in a cost increase from 21,004 CNY (3,121 USD) to 21,062 CNY (3,130 USD) and in QALYs from 1.89 to 1.92 (2.55 life years vs. 2.57 life years) per patient. The resulting ICER was 2,331 CNY (346 USD) per QALY [2,080 CNY (309 USD) per life year], falling below the willingness-to-pay threshold based on per capita GDP. One-way sensitivity analysis revealed that disparities in HHF and cardiovascular death rates between groups had the most significant impact on the ICER, while the cost of vaccines had a marginal impact. PSA and scenario analysis collectively affirmed the robustness of our findings.ConclusionThis study suggests that adding the influenza vaccine to standard treatment regimens for Chinese patients with HF may represent a highly cost-effective option. Further real-world data studies are essential to validate these findings

    The Effects of Logos’ Frames on Consumers’ Psychological Perceptions and Brand Attitudes

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    This study examined the effects of the brand logo’s frames (complete vs. incomplete) on consumers’ perceptions and attitudes. There were 452 participants in two studies online. The results show that the brand logos with complete (vs. incomplete) frames have higher safety (in Study 1). Moreover, the logos’ frames of complete (vs. incomplete) brands will generate the positive brand attitudes through increasing the consumers’ psychological perception of safety. For products with high safety attributes, consumers will have a higher evaluation of the brand logos with the complete frames, but there is no effect for products with less important safety attributes (in Study 2). This paper provides some guidance for the research of consumers’ psychological perceptions, and also broadens the scope of application of the conceptual metaphor

    5 Fluorouracil as firs t line treatment for low risk gestational trophoblastic neoplasia

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    Purpose: To investigate the efficacy and prognostic factors in response to 5-fluorouracil (5-FU) in lowrisk gestational trophoblastic neoplasia (GTN).Methods: This single-center retrospective study analyzed the hospital records of 204 LRGTN patients admitted to Department of Gynecology, Liaoning Cancer Hospital & Institute of China from 2002 to 2016 for retrieval of their clinical data, chemotherapy regimens, related side-effects, and evaluation of treatment efficacy and prognostic factors.Results: The median progression-free survival (PFS) was 55 months (3 - 190 months). The overall cure rate was 100 %, with no tumor-related deaths. When a single-agent regimen i.e. 5-FU, was selected for initiation of treatment for 132 patients while only 49 of them were treated with chemotherapy, the effective cure rate was 62.88 % (83/132); while the overall drug resistance r was 27.27 % (36/132). For patients with FIGO scores ≥ 4 points, the incidence of drug resistance was 71.43 % (5/7), while the incidence of III/IV myelosuppression was 10.61 % (14/132). A total of 38 patients (18.63 %) received surgical treatment in addition to chemotherapy. A comparison was made between two groups of patients with non-drug resistance, i.e., patients with unexpected GTN diagnosed postoperatively and those who received chemotherapy preoperatively. It was found that the number of courses of GTN chemotherapy for those who were unexpectedly diagnosed postoperatively was more than that for those who received chemotherapy preoperatively (p = 0.004).Conclusion: The single drug (5-FU) was effective in the management of low-risk (LR)-GTN. Treatment failure was related to drug resistance, high tumor score, and severe toxicity. Multi-agent regiments in combination with surgery, were an effective treatment method for GTN. For patients without metastasis and fertility requirements, surgery after chemotherapy significantly shortened the treatment cycle without increasing complications
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