97 research outputs found

    Correlation Analysis of Patients with Adverse Reactions Caused by Postoperative Morphine Analgesia

    Get PDF
    In the current medical field of clinical surgery, we often have to contact a large number of patients with severe fractures caused by serious accidental injuries. Generally, these trauma patients often need to be treated by repair surgery. Postoperative patients usually have a certain degree of local pain. In order to alleviate the physiological pain of postoperative patients, And can prevent the braking caused by the aggravation of local pain of the injured patients. The use of analgesic pump for postoperative analgesia has become a common method after surgery and has been widely used in clinic. Good postoperative analgesia can inhibit the body's stress response and is conducive to restoring the coordination and stability of local breathing and circulation of the patients after operation, Reduce the local pain symptoms of some patients and effectively reduce their postoperative related complications, and indirectly promote the recovery of patients with pain. For the application of analgesic pump for pain relief, there are often a variety of auxiliary ways and preparation methods of analgesic drugs such as arteriovenous and epidural circulation, which should be selected and configured according to the physical conditions and medication conditions of patients with pain, such as ns100ml Morphine 5mg, bupivacaine 75mg, etc., of which morphine is often used as a common drug component for pain relief, but some special patients often have a series of dependent reactions after using morphine for pain relief. In view of this situation, combined with the physical conditions and adverse reactions of some special patients, this paper analyzes the possible adverse effects on patients with special constitution when using morphine for pain relief after clinical operation and relevant research

    Z-source matrix rectifier

    Get PDF
    This paper presents a novel Z-source matrix rectifier(ZSMR). To overcome the inherent disadvantage that the voltage transfer ratio for traditional matrix rectifier cannot be more than 0.866, a Z-source network has been combined with the matrix rectifier. The proposed rectifier realizes a voltage-boost function and the Z-source network also serves as power storage and guarantees double filtration grade at the output of the rectifier. The open-circuit zero state is required to obtain the voltage-boost function and ensure the output angle of the current vector to be invariant to obtain the expected power factor. In addition, to widely extend the voltage transfer ratio of the proposed rectifier, this paper presents the switched-inductor matrix rectifier(SL-ZSMR) and tapped-inductor matrix rectifier(TL-ZSMR). The corresponding circuit topologies, control strategies and operating principles are introduced. Both simulation and experiment results are shown to verify the theoretical analysis

    Invariant subvarieties with small dynamical degree

    Full text link
    Let f:XXf:X\to X be a dominant self-morphism of an algebraic variety over an algebraically closed field of characteristic zero. We consider the set Σf\Sigma_{f^{\infty}} of ff-periodic (irreducible closed) subvarieties of small dynamical degree, the subset SfS_{f^{\infty}} of maximal elements in Σf\Sigma_{f^{\infty}}, and the subset SfS_f of ff-invariant elements in SfS_{f^{\infty}}. When XX is projective, we prove the finiteness of the set PfP_f of ff-invariant prime divisors with small dynamical degree, and give an optimal upper bound (of cardinality) Pfnd1(f)n(1+o(1))\sharp P_{f^n}\le d_1(f)^n(1+o(1)) as nn\to \infty, where d1(f)d_1(f) is the first dynamic degree of ff. When XX is an algebraic group (with ff being a translation of an isogeny), or a (not necessarily complete) toric variety (with ff stabilizing the big torus), we give an optimal upper bound Sfnd1(f)ndim(X)(1+o(1))\sharp S_{f^n}\le d_1(f)^{n\cdot\dim(X)}(1+o(1)) as nn \to \infty, which slightly generalizes a conjecture of S.-W. Zhang for polarized ff.Comment: 30 pages; comments are welcome

    Treatment of Esophagogastric Anastomotic Leak with Perianastomotic Drain

    Get PDF
    IntroductionThe most efficient treatment of such anastomotic leaks after esophagectomy remains controversial. Our objective was to evaluate the effectiveness of perianastomotic drains in anastomotic leaks.MethodsFive patients with intrathoracic anastomotic leaks had placement of perianastomotic drains through remanet esophagus and fitula into infected area. The other conservative methods of treatment were also chosen simultaneously.ResultsThe perianastomotic drains were placed successfully in all five patients. None of the patients underwent rethoracotomy. They were all cured. The median period to clinical healing was 33 days. The median hospital stay after the perianastomotic drainage procedure was 37 days.ConclusionThis procedure proved to be safe and effective in the treatment of esophagogastric anastomotic leak with perianastomotic drain through fistula

    Growth and nutrient dynamics of transplanted Quercus variabilis seedlings as influenced by pre-hardening and fall fertilization

    Get PDF
    Stored nutrient reserves are closely correlated with survival and growth of transplanted seedlings. Previous studies have proven that combining pre-hardening fertilization (PF) with fall fertilization (FF) built seedling nutrient reserves more effectively; however, their effect on transplanting performance is poorly documented. We investigated the independent and interacting effects of 2 levels of PF and 4 levels of FF on seedling growth, nutrient acquisition and accumulation during different growth phases 1 year after transplanting of Blume in a nursery. High PF benefited nutrient reserves and subsequent transplanted seedling growth and tissue nutrient storage at the end of the rapid growth and hardening phases. Fall fertilization with 36 mg N increased stem dry mass and tissue nutrient content at the end of the hardening phase. At the conclusion of establishment, PF and FF showed a significant interaction for N and K uptake from soil. At the end of the rapid growth and hardening phases, high PF consistently increased nutrient uptake. Enhanced N and K uptake occurred following application of 36 mg N of FF at the end of the hardening phase. Distinct roles for PF and FF on 3 phases of transplanted seedlings demonstrated the necessity to evaluate fertilization in terms of nutrient reserves and subsequent transplanting performance in consecutive phases. Combining 100 mg N seedling during pre-hardening with 36 mg N seedling during fall yielded ideal transplanting performance for seedlings.Quercus variabilis â1â1Quercus variabili

    Genomic evidence of adaptive evolution in the reptilian SOCS gene family

    Get PDF
    The suppressor of the cytokine signaling (SOCS) family of proteins play an essential role in inhibiting cytokine receptor signaling by regulating immune signal pathways. Although SOCS gene functions have been examined extensively, no comprehensive study has been performed on this gene family’s molecular evolution in reptiles. In this study, we identified eight canonical SOCS genes using recently-published reptilian genomes. We used phylogenetic analysis to determine that the SOCS genes had highly conserved evolutionary dynamics that we classified into two types. We identified positive SOCS4 selection signals in whole reptile lineages and SOCS2 selection signals in the crocodilian lineage. Selective pressure analyses using the branch model and Z-test revealed that these genes were under different negative selection pressures compared to reptile lineages. We also concluded that the nature of selection pressure varies across different reptile lineages on SOCS3, and the crocodilian lineage has experienced rapid evolution. Our results may provide a theoretical foundation for further analyses of reptilian SOCS genes’ functional and molecular mechanisms, as well as their roles in reptile growth and development
    corecore