Optimization of a Ge2Sb2Te5-Based Electrically Tunable Phase-Change Thermal Emitter for Dynamic Thermal Camouflage.

Controlling infrared thermal radiations can significantly improve the environmental adaptability of targets and has attracted increasing attention in the field of thermal camouflage. Thermal emitters based on Ge2Sb2Te5 (GST) can flexibly change their radiation energy by controlling the reversible phase transition of GST, which possesses fast switching speed and low power consumption. However, the feasibility of the dynamic regulation of GST emitters lacks experimental and simulation verification. In this paper, we propose an electrically tunable thermal emitter consisting of a metal-insulator-metal plasmonic metasurface based on GST. Both optical and thermal simulations are conducted to optimize the structural parameters of the GST emitter. The results indicate that this emitter possesses large emissivity tunability, wide incident angle, polarization insensitivity, phase-transition feasibility, and dynamic thermal camouflage capability. Therefore, this work proposes a reliable optimization method to design viable GST-based thermal emitters. Moreover, it provides theoretical support for the practical application of phase-change materials in dynamic infrared thermal camouflage technology.

Improving the multi-functionality of optical tweezers with FPGA integration.

The development of optical tweezers aims to extend their operating function and pattern. However, excessive programming can lead to a decrease in the system's operating speed and introduce bugs or data transmission delays. In this study, we present a time-shared optical tweezers system that allows for parallel operation of multiple functions. To enable efficient data transmission, we employ a queue structure and a buffer. To assess the system's performance, we utilize a biological sample in conjunction with the optical tweezers system and scanning imaging technique. We quantify the trapping parameter while concurrently running power stabilization programs. As a result, the standard deviation of the measured stiffness is reduced by 60% in the x and y directions and 30% in the z direction, indicating a significant improvement in calibration precision. Throughout the program execution, the system maintains an operating rate of 110 kHz, and the data are continuously updated in real time on the host. The system's performance demonstrates its potential for quantification and morphological reconstruction of biological samples.

[Effect of electroacupuncture of quintuple needling combined with adductor relaxation method for osteonecrosis of the femoral head].

OBJECTIVE: To compare the clinical effects on osteonecrosis of the femoral head between the comprehensive therapy (electroacupuncture ï¼»EAï¼½ of quintuple needling combined with adductor relaxation method) and the adductor relaxation method. METHODS: Eighty patients with osteonecrosis of the femoral head were randomly allocated into a treatment group and a control group, with 40 patients in each group. The patients in the control group were treated with the adductor relaxation method. In the treatment group, besides the treatment as the control group, EA of quintuple needling was exerted at the most obvious tender sites (Ashi points) around the hip joint, 30 min each time. The treatment was given once daily, 30 days as one session of treatment, and 3 sessions were required totally in each group. The clinical effects of two groups were evaluated. The score of visual analogue scale (VAS), Harris score and the score of the hip mobility were compared before and after treatment and between the two groups. RESULTS: The total effective rate was 97.5% (39/40) in the treatment group, higher than 82.5% (33/40) in the control group (P<0.05). Compared with before treatment, the VAS score was remarkably decreased (P<0.05), while the Harris score and the score of the hip mobility were apparently increased in either group after treatment (P<0.05). In comparison between two groups, the VAS score in the treatment group was obviously lower (P<0.05) than that of the control group, while the Harris score and the score of the hip mobility were higher than those of the control group (P<0.05). CONCLUSION: EA of quintuple needling combined with the adductor relaxation method obtains the better clinical effects on ischemic osteonecrosis of the femoral head compared with the simple adductor relaxation method, and this comprehensive therapy obviously relieves the clinical symptoms in patients.

Gender differences in Damp-Heat Syndrome: A review.

Gender differences have important biological significance for medical research. In this study, a bias towards males was identified in animal experiments of Damp-Heat Syndrome in traditional Chinese medicine, as was first proposed by a data mining method. Combined with the correlation between Damp-Heat Syndrome in traditional Chinese medicine and Gender differences, it was considered that Gender-related factors have a significant influence on the development of Damp-Heat Syndrome in traditional Chinese medicine. However, most traditional Chinese medicine studies ignore the key significance of Gender-related factors. This study emphasises that the development of modern traditional Chinese medicine research needs to pay full attention to the biological significance of Gender-related factors and to apply this concept to the research on the Gender equivalence strategy in basic research and the practice of personalised medical diagnosis and clinical treatment.

Voltage controlled Néel vector rotation in zero magnetic field.

Multi-functional thin films of boron (B) doped Cr2O3 exhibit voltage-controlled and nonvolatile Néel vector reorientation in the absence of an applied magnetic field, H. Toggling of antiferromagnetic states is demonstrated in prototype device structures at CMOS compatible temperatures between 300 and 400 K. The boundary magnetization associated with the Néel vector orientation serves as state variable which is read via magnetoresistive detection in a Pt Hall bar adjacent to the B:Cr2O3 film. Switching of the Hall voltage between zero and non-zero values implies Néel vector rotation by 90 degrees. Combined magnetometry, spin resolved inverse photoemission, electric transport and scanning probe microscopy measurements reveal B-dependent TN and resistivity enhancement, spin-canting, anisotropy reduction, dynamic polarization hysteresis and gate voltage dependent orientation of boundary magnetization. The combined effect enables H = 0, voltage controlled, nonvolatile Néel vector rotation at high-temperature. Theoretical modeling estimates switching speeds of about 100 ps making B:Cr2O3 a promising multifunctional single-phase material for energy efficient nonvolatile CMOS compatible memory applications.

Epigenetic Targets and their Inhibitors in Cancer Therapy.

Epigenetics is defined as the stable and heritable alternations in gene expression without changing the DNA nucleotide sequence. The initiation and progression of cancer result from not only genetic mutation, but also aberrant epigenetic regulation, such as DNA methylation and histones acetylation. Although Genetic alternations cannot be reversed, epigenetic modification is a dynamic and reversible process. Over the past few decades, much progress has been made in the research of epigenetic medications and a variety of drugs have been developed targeting at epigenetic regulatory proteins, which are capable of restoring malignant cancer cells to the normal state. The epigenetic drugs currently approved for cancer treatment mainly target at DNA methylation and histones acetylation. In addition, there are a great many epigenetic drugs in clinical trials for cancer therapy, such as inhibitors of DNA methyltransferases, histone deacetylases, histone methyltransferases, lysine specific demethylases, and BET (bromodomain and extra-terminal domain) family proteins. We will discuss the latest developments of these inhibitors and their applications in cancer therapy.

[Treatment of knee osteoarthritis with acupuncture and moxibustion: a randomized controlled trial].

OBJECTIVE: To compare the difference of the efficacy on knee osteoarthritis (KOA) between the combined therapy of acupuncture and moxibustion and western medication, and explore the better therapeutic method for KOA. METHODS: One hundred and sixty patients were divided into a combined therapy group and a western medication group, 80 cases in each one according to the visit sequence, with the random number table adopted. In the combined therapy group, the main points were selected from the local painful sites, combined with the acupoints based on the syndrome differentiation and distal acupoints on the affected meridians. The lifting, thrusting or rotating technique was used and the reinforcing or reducing manipulation was applied according to the syndrome differentiation. "Duanci" or "Shuci" needling technique was used specially at the extra points and Ashi points. The needling sensation relied on the patients' tolerance. After acupuncture, the heat-sensitive moxibustion with pure moxa stick was applied over the local painful sites around knee joint and Shenshu (BL 23) to detect the heat-sensitized points. Acupuncture and moxibustion were given once every day. The treatment of 5 days made 1 session. There were 2 days at the interval between two sessions. In the western medication group, glucosamine sulfate capsules were prescribed for oral administration, 2 capsules each time, three times a day. Additionally, the joint cavity injection was combined. On the first day, sodium hyaluronate 25 mg and triamcinolone acetonide acetate 50 mg were injected. Afterwards, on the 8th, 15th, 22nd and 29th days, sodium hyaluronate injection 25 mg was used only. The treatment was for 5 weeks totally in the two groups. The efficacy was analyzed statistically in 5 weeks. The follow-up visit was conducted in 3 months and 6 months after 5 weeks treatment, respectively. The Western Ontario and Mcmaster Universities Osteoarthritis Index (WOMAC) and visual analogue scale (VAS) were adopted to assess the recovery of joint function. RESULTS: The efficacy in 5 weeks of treatment was different significantly between the two groups (P < 0.05). The efficacy in the western medication group was better than that in the combined therapy group. The difference in the safety assessment was remarkable (P < 0.01). The result in the combined therapy group was superior remarkably to the western medication group. In 3-month follow-up visit after treatment, the knee joint function was not different obviously between the two groups (P > 0.05). In 6-month followup visit after treatment, the knee joint function was different obviously between the two groups (P < 0.01). The result in the combined therapy group was better remarkably than that in the western medication group. CONCLUSION: The combined therapy of acupuncture and moxibustion achieves the safe and effective therapeutic effect with less adverse reactions in the treatment of KOA. The immediate effect in the combined therapy group is not so obvious as compared with the western medication, but the long-term efficacy is remarkably superior to western medication.

6-Bromo-2-(diprop-2-ynyl-amino)-1H-benzo[de]isoquinoline-1,3(2H)-dione.

The asymmetric unit of the title compound, C(18)H(11)BrN(2)O(2), contains two independent mol-ecules in which the prop-2-ynyl-amino groups have different mutual orientations. In one mol-ecule, the Br atom is disordered over two positions, with refined occupancies of 0.742 (2) and 0.258 (2).