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This paper proposes a circularly polarized ultra-wideband (UWB) antenna for a Uni-Traveling-Carrier Photodiode (UTC-PD) to meet the growing demand for bandwidth and polarization diversity in terahertz (THz) communication. In the design of the UTC-PD integrated antenna, the planar electrodes of the chip are directly integrated with the antenna to simplify the integration process. However, this integration introduces new problems, such as asymmetry inside the spiral antenna, which leads to a deterioration in the corresponding high-frequency performance. To address this issue, the antenna's structure is optimized, and a lens is integrated to enhance directivity and eliminate surface waves. As a result, the proposed antenna achieves a 100-1500 GHz (175%) impedance bandwidth and a 150-720 GHz (131%) axial ratio bandwidth for the UTC-PD. The maximum gain of the antenna is 21.05 dBi at 1 THz.
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BACKGROUND: Gastroparesis is a common digestive disorder characterized by delayed gastric emptying, which can lead to symptoms such as nausea, vomiting, abdominal pain, and poor appetite. Traditional Chinese medicine (TCM) has been used for centuries to treat gastrointestinal disorders, including gastroparesis. TCM theory suggests that spleen and stomach qi deficiency syndrome is one of the main pathogenic factors in gastroparesis. Nursing care plays an important role in the treatment of gastroparesis, and TCM nursing interventions have shown promising results in improving patient outcomes. However, there is limited research on the clinical effectiveness of TCM nursing interventions for gastroparesis with spleen stomach deficiency syndrome. This study aimed to evaluate the clinical effect of TCM nursing intervention in the treatment of gastroparesis with spleen stomach deficiency syndrome and to compare it with routine nursing interventions. AIM: To analyze the clinical effect of traditional Chinese medicine nursing intervention in the treatment of gastric paraplegia with spleen stomach deficiency syndrome. METHODS: From January 2020 to July 2021, 80 patients with gastroparesis of spleen stomach qi deficiency type diagnosed in our hospital were selected for the study. The 80 patients were randomly divided into a control group and an experimental group, with 40 cases in each group. During the treatment period, the control group received routine nursing interventions, while the experimental group received traditional Chinese medicine nursing procedures. Compare the nursing effects of the two groups and observe the changes in traditional Chinese medicine symptom scores, pain levels, and sleep quality before and after treatment. RESULTS: After treatment, comparing the treatment effects of the two groups, the total effective rate of the experimental group was significantly higher than that of the control group, with statistical significance (P < 0.05). There was no statistically significant difference in the TCM symptom score, visual analogue scale (VAS) score, and Pittsburgh sleep quality index (PSQI) score between the two groups before treatment (P > 0.05). However, after treatment, the TCM syndrome scores, VAS scores, and PSQI scores of the experimental group were significantly lower than those of the control group, with a statistically significant difference (P < 0.05). CONCLUSION: In the clinical nursing intervention of patients with mild gastroparesis due to spleen and stomach qi deficiency, the traditional Chinese medicine nursing plan has good clinical application value and nursing effect, and has a good effect on improving patients' pain and sleep quality.
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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) neutralizing antibodies are shown to be effective therapeutics for providing coronavirus disease 2019 (COVID-19) protection. However, recurrent variants arise and facilitate significant escape from current antibody therapeutics. Bispecific antibodies (bsAbs) represent a unique platform to increase antibody breadth and to reduce neutralization escape. Herein, a novel immunoglobulin G-variable domains of heavy-chain-only antibody (IgG-VHH) format bsAb derived from a potent human antibody R15-F7 and a humanized nanobody P14-F8-35 are rationally engineered. The resulting bsAb SYZJ001 efficiently neutralizes wild-type SARS-CoV-2 as well as the alpha, beta, gamma, and delta variants, with superior efficacy to its parental antibodies. Cryo-electron microscopy structural analysis reveals that R15-F7 and P14-F8-35 bind to nonoverlapping epitopes within the RBD and sterically hindered ACE2 receptor binding. Most importantly, SYZJ001 shows potent prophylactic and therapeutic efficacy against SARS-CoV-2 in three established mouse models. Collectively, the current results demonstrate that the novel bsAb format is feasible and effective, suggesting great potential as an inspiring antiviral strategy.
