Terahertz programmable metasurface based on solid-state plasma.

Terahertz modulation technology based on programmable metasurfaces can respond in real time to external signals or environmental changes, enabling flexible and adaptive control of terahertz waves. This technology demonstrates significant potential and importance across various fields, including communication, imaging, scientific research, security monitoring, and industrial applications. This paper proposes a terahertz programmable metasurface based on solid-state plasma, utilizing solid-state plasma devices to achieve dynamic control of properties such as the amplitude and phase of terahertz waves.

Multimodal ultrasound assessment of the injection therapy in lateral epicondylitis: a retrospective observational study.

Background: At present, there is a dearth of objective methodologies for assessing the effectiveness of treatments for Lateral Epicondylitis (LE). This study examined 73 patients suffering from tennis elbow using a multimodal ultrasound approach and investigated the correlation between pertinent indicators and clinical scores.

Methods: 73 patients diagnosed with unilateral tennis elbow by interventional ultrasound at Zhejiang Rongjun Hospital were included in the study.

Ultrasound-Guided Fascial Hydrodissection with Eperisone: A Retrospective Study on Efficacy and Safety in Lumbodorsal Fasciitis Treatment.

BACKGROUND Lumbodorsal fasciitis (LF) is a condition in which muscle and fascial lesions cause low back pain (LBP) and limited mobility. This retrospective study aimed to explore the efficacy and safety of ultrasound-guided fascial hydrodissection combined with eperisone for treating LF. MATERIAL AND METHODS A total of 103 patients with LF were selected and divided into a combined therapy (CT) group (ultrasound-guided fascial hydrodissection and oral drugs of eperisone) and single medication (SM) group (oral drugs of celecoxib and eperisone).

[A V-Y shaped flap with digital artery nerve at metacarpophalangeal joint was used to repair the defect of middle and distal phalanx].

Objective: To explore a surgical method for the reconstruction of volar soft tissue defect and sensory and vascular repair in middle and far phalangeal digits.

Methods: From January 2016 to January 2020, a total of 14 patients , 9 males and 5 females, ages ranging from 22 to 69 years old, and with volar soft tissue defects in the middle and distal digits 2 to 4, underwent surgical reconstruction using the V-Y shaped flap with digital artery and nerve at the metacarpophalangeal joint. The defect area was (2.

A Case-Control Study of 40 Patients with Piriformis Muscle Syndrome to Evaluate Diagnostic Findings Using Two-Dimensional Ultrasound and Shear Wave Elastography.

BACKGROUND Piriformis muscle syndrome (PMS) is a neuropathy caused by compression of the sciatic nerve by the piriformis muscle. This case-control study included 40 patients with PMS and aimed to evaluate the diagnostic findings using two-dimensional ultrasound and shear wave elastography (SWE), as non-invasive and cost-effective diagnostic methods. MATERIAL AND METHODS In order to evaluate the value of two-dimensional ultrasound diagnosis, a new imaging technique called shear wave elastography (SWE) was used in the screening of PMS, with a total of 40 PMS patients and 40 healthy individuals participating in our study.

TEM Investigation of Asymmetric Deposition-Driven Crystalline-to-Amorphous Transition in Silicon Nanowires.

Controlling the shape and internal strain of nanowires (NWs) is critical for their safe and reliable use and for the exploration of novel functionalities of nanodevices. In this work, transmission electron microscopy was employed to examine bent Si NWs prepared by asymmetric electron-beam evaporation. The asymmetric deposition of Cr caused the formation of nanosized amorphous-Si domains; the non-crystallinity of the Si NWs was controlled by the bending radius.

Application of the maximum threshold distances to reduce gene flow frequency in the coexistence between genetically modified (GM) and non-GM maize.

On the coexistence of genetically modified (GM) and non-GM maize, the isolation distance plays an important role in controlling the transgenic flow. In this study, maize gene flow model was used to quantify the MTD and MTD in the main maize-planting regions of China; those were the maximum threshold distance for the gene flow frequency equal to or lower than 1% and 0.1%.

Insight Into the Mechanism of Exercise Preconditioning in Ischemic Stroke.

Exercise preconditioning has attracted extensive attention to induce endogenous neuroprotection and has become the hotspot in neurotherapy. The training exercise is given multiple times before cerebral ischemia, effectively inducing ischemic tolerance and alleviating secondary brain damage post-stroke. Compared with other preconditioning methods, the main advantages of exercise include easy clinical operation and being readily accepted by patients.

Tripartite Motif Containing 11 Interacts with DUSP6 to Promote the Growth of Human Osteosarcoma Cells through Regulating ERK1/2 Pathway.

Tripartite Motif Containing 11 (TRIM11), an E3 ubiquitin ligase, is identified as a carcinogen causing certain human cancers. However, the specific role of TRIM11 is still uncovered in human osteosarcoma (OS) cells. To explore the role of TRIM11 in OS cells, TRIM11 was induced by silencing and overexpression in OS cells using RNA interference (RNAi) and lentiviral vector, respectively.

Fabrication and characterization of SiC/Ge/graphene heterojunction with Ge micro-nano structures.

To widen the detection wavelength range and improve the detection sensitivity of SiC-based optoelectronic devices, the SiC/Ge/graphene heterojunction was fabricated by using wet transfer of the graphene following chemical vapor deposition. The Ge films on 4H-SiC(0001) have polycrystalline structure with nano-wire (NWs) and submicron spherical island (SIs) features. Due to the distinct light trapping effect of the Ge NWs, the SiC/GeNWs/graphene heterojunction has an absorbance of more than 90% in the 500-1600 nm range, which is higher than the SiC/GeSIs/graphene heterojunction.

[Clinical analysis of repairing the defect of hand with reverse island skin flap of upper carpal cutaneous branches of ulnar artery].

Objective: To investigate the clinical effect of repairing soft tissue defect after hand wound using reverse island skin flap of upper carpal cutaneous branches of ulnar artery.

Methods: From June 2010 to November 2016, 12 patients with hand soft tissue defects were repaired by reverse island skin flap of upper carpal cutaneous branches of ulnar artery, including 9 males and 3 females with an average age of (35.2±9.

E2F1 silencing inhibits migration and invasion of osteosarcoma cells via regulating DDR1 expression.

In the present study, knockdown of E2F1 impaired the migration and invasion of osteosarcoma cells. Further analysis showed that E2F1 knockdown decreased the expression of discoidin domain receptor 1 (DDR1) which plays a crucial role in many fundamental processes such as cell differentiation, adhesion, migration and invasion. Luciferase and ChIP assays confirmed that E2F1 silencing attenuated the expression of DDR1 through disrupting E2F1-mediated transcription of DDR1 in osteosarcoma cells.

Effect of Low Pressure on Surface Roughness and Morphological Defects of 4H-SiC Epitaxial Layers.

In this work, 4H-SiC epilayers are performed on 4° off-axis substrates under low pressure condition by horizontal hot wall chemical vapor deposition (HWCVD) with a standard chemistry of silane-propane-hydrogen, which focuses on the effects of growth pressure on morphology, basal plane dislocations (BPDs) and crystalline quality. It is found that morphological defects reduce with the decreasing of growth pressure, since the surface diffusion length of absorbed adatoms increases under low growth pressure, which suppresses the nucleation of adatoms on terraces and the formation of morphological defects. However, as the surface diffusion length increases under low growth pressure, the difference of growth velocity at steps is enhanced, which leads to the extension of the steps' width and the formation of step-bunching.

Photoelectric Properties of Si Doping Superlattice Structure on 6H-SiC(0001).

The energy-band structure and visible photoelectric properties of a p/n-Si doping superlattice structure (DSL) on 6H-SiC were simulated by Silvaco-TCAD. The,n the Si-DSL structures with 40 nm-p-Si/50 nm-n-Si multilayers were successfully prepared on 6H-SiC(0001) Si-face by chemical vapor deposition. TEM characterizations of the p/n-Si DSL confirmed the epitaxial growth of the Si films with preferred orientation and the misfit dislocations with a Burgers vector of 1/3 <21-1> at the p-Si/n-Si interface.

[Internal fixation with one-hole microplate for the treatment of collateral ligament injuries of the metacarpophalangeal joint of the thumb combined with fracture].

Objective: To study clinical effects of one-hole microplate internal fixation for the treatment of collateral ligament injuries of the metacarpophalangeal joint of the thumb combined with fracture.

Methods: Twenty-two patients (16 males, 6 females) with collateral ligament injuries of the metacarpophalangeal joint of the thumb combined fracture were treated with one-hole microplate internal fixation. The age of the patients ranged from 18 to 53 years old with a mean age of 28.

[Application of vacuum sealing drainage and cryopreservation technology in hand and foot skin replantation].

Objective: To summarize the clinical effect of avulsed skin replantation of hand and foot via vacuum sealing drainage (VSD) combing low temperature technique.

Methods: From March 2012 to October 2013,13 cases with avulsed skin replantation of hand foot using combined technique included 8 males and 5 females with an average age of 32 years old ranging from 18 to 62 years. The time from injury to hospital was 1 to 4 hours (2.

Establishment and optimization of a regionally applicable maize gene-flow model.

Because of the rapid development of transgenic maize, the potential effect of transgene flow on seed purity has become a major concern in public and scientific communities. Setting a proper isolation distance in field experiments and seed production is a possible solution to meet seed-quality standards and ensure adventitious contamination of products is below a specific threshold. By using a Gaussian plume model as basis and data recorded by meteorological stations as input, we have established a simple regionally applicable maize gene-flow model for prediction of the maximum threshold distances (MTD) at which gene-flow frequency is equal to or lower than a threshold value of 1 or 0.

Ignition and flame stabilization of a strut-jet RBCC combustor with small rocket exhaust.

A Rocket Based Combined Cycle combustor model is tested at a ground direct connected rig to investigate the flame holding characteristics with a small rocket exhaust using liquid kerosene. The total temperature and the Mach number of the vitiated air flow, at exit of the nozzle are 1505 K and 2.6, respectively.

Unstart coupling mechanism analysis of multiple-modules hypersonic inlet.

The combination of multiplemodules in parallel manner is an important way to achieve the much higher thrust of scramjet engine. For the multiple-modules scramjet engine, when inlet unstarted oscillatory flow appears in a single-module engine due to high backpressure, how to interact with each module by massflow spillage, and whether inlet unstart occurs in other modules are important issues. The unstarted flowfield and coupling characteristic for a three-module hypersonic inlet caused by center module II and side module III were, conducted respectively.

[Containing negative pressure drainage technology combined dermatoplasty of full thick skin graft to repair surgical donor site of hallux toe].

Objective: To evaluate the effectiveness of vacuum sealing drainage (VSD) combined with skin grafting to repair donor site for wrap around flap of hallux toe.

Methods: From Jan. 2009 to Apr.

[Endoscope and microscope assisted three small incisions for treatment of cubital tunnel syndrome].

Objective: To evaluate the surgical method and the results of endoscopic decompression and anterior transposition of the ulnar nerve for treatment of cubital tunnel syndrome.

Methods: Between May 2008 and August 2009, 13 cases of cubital tunnel syndrome were treated with endoscopic decompression and anterior transposition of the ulnar nerve. There were 4 males and 9 females with an average age of 47.

[Diagnosis and treatment of the metacarpophalangeal joint locking caused by sesamoid turned-over dislocation of the thumb].

Objective: To introduce diagnosis and treatment of the metacarpophalangeal joint (MPJ) locking caused by sesamoid turned-over dislocation of the thumb.

Methods: Five cases with metacarpophalangeal joint locking were involved in the study, male 4 and female 1. The average age was 35 years old(ranging from 18 to 47 years).

[Effect of short-term drought on leaf water potential, photosynthesis and dry matter partitioning in paddy rice].

Pot experiments were conducted to study the effect of short-term drought at four rice growth stages on leaf water potential, photosynthesis and dry matter partitioning in paddy rice. The leaf water potential of rice plant under water stress was lower than that of CK, and the difference increased after midday. The predawn leaf water potential of rice plant decreased significantly when soil water content or soil water potential went down a threshold value, resulted in an obvious decline in the single leaf net photosynthetic rate.