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Activation of mitogen-activated protein kinase (MAP kinase) cascades is essential for plant immunity. Upon activation by surface-localized immune receptors, receptor-like cytoplasmic kinases (RLCKs) in the cytoplasm phosphorylate MAP kinase kinase kinases (MAPKKKs) to initiate MAP kinase activation. Surprisingly, we found that both the phosphorylation of Arabidopsis (Arabidopsis thaliana) MAPKKKs and the subsequent activation of MAP kinase cascades require the λ and κ isoforms of 14-3-3 proteins, which directly interact with multiple RLCKs and MAPKKKs. The N- and C-termini of MAPKKK5 interact intramolecularly to inhibit the access to the C terminus by RLCKs, whereas the 14-3-3 proteins relieve this inhibition and facilitate the interaction of RLCKs with the C-terminus of MAPKKK5. This enables the phosphorylation of MAPKK5 at Ser599 and Ser682, thus promoting MAP kinase activation and enhancing plant disease resistance. Our study reveals a role of 14-3-3 proteins as scaffolds and activators in the regulation of the RLCK-MAPKKK5 module and provides insight into the mechanism of plant immune signaling.

Objectives Orbital lymphoma is one of the most common adult orbital malignancies, accounting for approximately 10% of all orbital tumors. This study aimed to analyze the effects of surgical resection and orbital iodine-125 brachytherapy implantation for orbital lymphoma. Patients and methods This was a retrospective study. Clinical data of 10 patients were collected from October 2016 to November 2018 and followed up to March 2022. Patients underwent the primary surgery for maximal safe removal of the tumor. After a pathologic diagnosis of a primary orbital lymphoma was established, iodine-125 seed tubes were designed based on the tumor size and invasion range, and direct vision was placed into the nasolacrimal canal or/and under the orbital periosteum around the resection cavity during the secondary surgery. Then, follow-up data, including the general situation, ocular condition, and tumor recurrence, were recorded. Results Of the 10 patients, the pathologic diagnoses included extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (6 cases), small lymphocytic lymphoma (1 case), mantle cell lymphoma (2 cases), and diffuse large B-cell lymphoma (1 case). The number of seeds implanted ranged from 16 to 40. The follow-up period ranged between 40 and 65 months. All patients in this study were alive and well had tumors that were completely controlled. No tumor recurrences or metastases occurred. Three patients had dry eye syndrome and two patients had abnormal facial sensation. No patient had radiodermatitis involving the skin around the eye, and no patient had radiation-related ophthalmopathy. Conclusions Based on preliminary observations, iodine-125 brachytherapy implantation appeared to be a reasonable alternative to external irradiation for orbital lymphoma.

To report three-decade changes of clinical characteristics, progress of treatments, and risk factors associated with mortality and enucleation in patients with retinoblastoma in China.Retrospective cohort study.This multicenter study included 2552 patients diagnosed with retinoblastoma in 38 medical centers in 31 provinces in China from 1989 to 2017, with follow-up data. Kendall's tau-b value was used to describe correlation coefficients between the three eras (between 1989 and 2008, between 2009 and 2013, and between 2014 and 2017) and clinical or demographic features. Hazard ratios and odds ratios were applied to measure risk factors.A total of 324 (13%) patients died and 1414 (42%) eyes were removed. The 1-year, 3-year, and 5-year overall survival rates were 95%, 86%, and 83%, respectively. Patients were diagnosed at a better stage by International Classification for Retinoblastoma over time (Kendall's tau-b value = -0.084, P.001). Pathological risk factors were also observed less in recent eras. New conservative therapies were adopted and used in more patients. The eye removal rate gradually decreased (Kendall's tau-b value = -0.167, P.001). The overall survival rates were 81%, 83%, and 91% in the three eras. By multivariate Cox regression, bilateral tumors and extraocular extension were identified as risk factors for death. Among intraocular disease, Group E indicated higher risk of mortality. By multivariate logistics regression, unilateral tumors, earlier era of diagnosis, and extraocular extension were risk factors for eye salvage failure. Among intraocular retinoblastoma, Groups D and E had higher risk of eye salvage failure.Patients were diagnosed at an earlier stage in recent eras. Conservative therapies, including intra-arterial chemotherapy, were increasingly being used. The above changes may contribute to the decreasing enucleation rate. Although no significant impact was identified on the mortality by the three eras, a decreasing trend was shown.

Purpose This study attempted to estimate the impact of eye-preserving therapies for the long-term prognosis of patients with advanced retinoblastoma with regard to overall survival and ocular salvage. Design Retrospective cohort study covering all 31 provinces (38 retinoblastoma treating centers) of mainland China. Participants One thousand six hundred seventy-eight patients diagnosed with group D or E retinoblastoma from January 2006 through May 2016. Methods Chart review was performed. The patients were divided into primary enucleation and eye-preserving groups, and they were followed up for survival status. The impact of initial treatment on survival was evaluated by Cox analyses. Main Outcome Measures Overall survival and final eye preservation. Results After a median follow-up of 43.9 months, 196 patients (12%) died, and the 5-year overall survival was 86%. In total, the eyeball preservation rate was 48%. In this cohort, 1172 patients (70%) had unilateral retinoblastoma, whereas 506 patients (30%) had bilateral disease. For patients with unilateral disease, 570 eyes (49%) underwent primary enucleation, and 602 patients (51%) received eye-preserving therapies initially. During the follow-up (median, 45.6 months), 59 patients (10%) from the primary enucleation group and 56 patients (9.3%) from the eye-preserving group died. Multivariate Cox analyses indicated no significant difference in overall survival between the 2 groups (hazard ratio [HR], 1.25; 95% confidence interval [CI], 0.85–1.84; P = 0.250). For patients with bilateral disease, 95 eyes (19%) underwent primary enucleation, and 411 patients (81%) received eye-preserving therapies initially. During the follow-up (median, 40.1 months), 12 patients (13%) from the primary enucleation group and 69 patients (17%) from the eye-preserving group died. For bilateral retinoblastoma with the worse eye classified as group E, patients undergoing primary enucleation exhibited better overall survival (HR, 2.35; 95% CI, 1.10–5.01; P = 0.027); however, this survival advantage was not evident until passing 22.6 months after initial diagnosis. Conclusions Eye-preserving therapies have been used widely for advanced retinoblastoma in China. Patients with bilateral disease whose worse eye was classified as group E and who initially underwent eye-preserving therapies exhibited a worse overall survival. The choice of primary treatment for advanced retinoblastoma should be weighed carefully.

Infrared metasurface, especially that having a working range covering wavelengths from 0.75 to 25 μm, has been exploited as a revolutionary tool to manipulate the properties of electromagnetic waves owing to its potential applications in military and civilian fields. It owns the capacity to steer electromagnetic waves within subwavelength scale, with full degrees of freedom such as phase, amplitude and polarization, allowing the development of a number of planar meta-devices including the metalens, hologram, wave-plate and polarimeter. In particular, polarization, which determines the interaction of electromagnetic waves with matter, is important in almost every area of science. However, conventional materials for infrared polarization control inevitably introduce extra optical components and bulky configurations, hindering future miniaturization and integration. Moreover, compared with their short wavelength counterparts, polarization nanodevices in the infrared band and especially those in the long-wavelength infrared region have been far less explored due to the loss of material and immature fabrication techniques. Here, we review recent progress in the development of infrared metasurfaces in terms of generating, manipulating and detecting the polarization on standard and higher-order Poincare spheres. The principles, typical strategies and emerging applications of these processes are introduced. We also discuss the challenges and outlook of future developments in this emerging field.

For area D of the Ordos Basin, the Yan 9 oil-bearing group were finely divided and compared using the marker layer method, the principle of equal thickness, and the sedimentary cycle analysis method. According to the stratigraphic division results, the plan view of the thickness of the small strata and the structure map of the top of the strata were drawn. It is believed that the Yan93 and Yan91+2 stratums are relatively complete in the whole area and have not suffered denudation. The overall thickness of the formation does not vary widely, and the thickness of the two small layers is mainly about 20m. The nose-like structure at the top of Yan 9 is densely developed, forming multiple rows of nearly east-west nose-like structures, with a structural amplitude less than 25m, and the distribution of rhinoplasty has a certain difference. The distance between rhinoplasty is 3-8km. These nose structures provide favorable trap conditions for hydrocarbon accumulation. The study of the stratigraphic and structural characteristics of the Yan 9 oil-bearing group provides basic geological data for the prediction of later sedimentary facies, sand body distribution, reservoir characteristics and favorable blocks, which is of great significance.

The purpose of this meta-analysis was to compare the clinical outcomes of central pancreatectomy (CP) with distal pancreatectomy (DP). PubMed, Web of Knowledge, and Ovid's database were searched for studies published in English language between January 1990 and December 2018. A meta-analysis was performed to compare the clinical outcomes of CP versus DP. Nineteen trials with 1440 patients were analyzed. Although there were no significant differences in the rate of intra-operative blood transfusion between two groups, CP costs more operative time as well as had more intraoperative blood loss than DP. Furthermore, the overall complication rate, pancreatic fistula rate, and the clinically significant pancreatic fistula rate were significantly higher in the CP group. On the other hand, CP had a lower risk of endocrine (odds ratio: 0.17; 95% confidence interval: 0.10, 0.29; P < 0.05) and exocrine insufficiency (odds ratio: 0.22; 95% confidence interval: 0.10, 0.48; P < 0.05). CP was associated with a higher pancreatic fistula rate, and it should be performed in selected patients who need preservation of the pancreas, which is of utmost importance.

This study attempted to estimate the impact of eye-preserving therapies for the long-term prognosis of patients with advanced retinoblastoma with regard to overall survival and ocular salvage.Retrospective cohort study covering all 31 provinces (38 retinoblastoma treating centers) of mainland China.One thousand six hundred seventy-eight patients diagnosed with group D or E retinoblastoma from January 2006 through May 2016.Chart review was performed. The patients were divided into primary enucleation and eye-preserving groups, and they were followed up for survival status. The impact of initial treatment on survival was evaluated by Cox analyses.Overall survival and final eye preservation.After a median follow-up of 43.9 months, 196 patients (12%) died, and the 5-year overall survival was 86%. In total, the eyeball preservation rate was 48%. In this cohort, 1172 patients (70%) had unilateral retinoblastoma, whereas 506 patients (30%) had bilateral disease. For patients with unilateral disease, 570 eyes (49%) underwent primary enucleation, and 602 patients (51%) received eye-preserving therapies initially. During the follow-up (median, 45.6 months), 59 patients (10%) from the primary enucleation group and 56 patients (9.3%) from the eye-preserving group died. Multivariate Cox analyses indicated no significant difference in overall survival between the 2 groups (hazard ratio [HR], 1.25; 95% confidence interval [CI], 0.85-1.84; P = 0.250). For patients with bilateral disease, 95 eyes (19%) underwent primary enucleation, and 411 patients (81%) received eye-preserving therapies initially. During the follow-up (median, 40.1 months), 12 patients (13%) from the primary enucleation group and 69 patients (17%) from the eye-preserving group died. For bilateral retinoblastoma with the worse eye classified as group E, patients undergoing primary enucleation exhibited better overall survival (HR, 2.35; 95% CI, 1.10-5.01; P = 0.027); however, this survival advantage was not evident until passing 22.6 months after initial diagnosis.Eye-preserving therapies have been used widely for advanced retinoblastoma in China. Patients with bilateral disease whose worse eye was classified as group E and who initially underwent eye-preserving therapies exhibited a worse overall survival. The choice of primary treatment for advanced retinoblastoma should be weighed carefully.

The incidence and prevalence of inflammatory bowel disorders (IBD) are increasing around the world due to bacterial infection, abnormal immune response, etc. The conventional medicines for IBD treatment possess serious side effects. Periplaneta americana (P. americana), a traditional Chinese medicine, has been used to treat arthritis, fever, aches, inflammation, and other diseases. This study aimed to evaluate the anti-inflammatory effects of oligosaccharides from P. Americana (OPA) and its possible mechanisms in vivo. OPA were purified and biochemical characterization was analyzed by HPGPC, HPLC, FT-IR, and GC–MS. Acute colitis mice model was established, the acute toxicity and anti-inflammatory activity were tested in vivo. The results showed OPA with molecular mass of 1.0 kDa were composed of 83% glucose, 6% galactose, 11% xylose, and the backbone was (1→4)-Glcp. OPA had potent antioxidant activities in vitro and significantly alleviated the clinical symptoms of colitis, relieved colon damage without toxic side effects in vivo. OPA exhibited anti-inflammatory activity by regulating Th1/Th2, reducing oxidative stress, preserving intestinal barrier integrity, and inhibiting TLR4/MAPK/NF-κB pathway. Moreover, OPA protected gut by increasing microbial diversity and beneficial bacteria, and reducing pathogenic bacteria in feces. OPA might be the candidate of complementary and alternative medicines of IBD with low-cost and high safety.

Objectives To compare water-based treadmill walking training with land-based treadmill walking training following anterior cruciate ligament (ACL) reconstruction. Design Prospective, randomised, single-blind clinical trial. Setting Single-centre study. Participants Sixty patients undergoing rehabilitation following ACL reconstruction were assigned at random into two groups. Interventions Patients in the water-based training group (WBG) underwent treadmill training in water, and patients in the land-based training group (LBG) underwent treadmill training on land. Main outcome measures Muscle strength was evaluated using the ratio of peak torque to body weight (PT/BW) before and after 3 weeks of training. Results After 3 weeks of training, both groups had significantly higher PT/BW ratios, passive position sense (PAPS) and Lysholm scores compared with pre-treatment levels. In the affected leg, the PT/BW ratio for the knee extensor muscles, PAPS and Lysholm scores showed significantly greater improvement in the WBG than in the LBG. No significant differences in the PT/BW ratio, single leg balance index and stability limit index of the knee flexor muscles at different angular velocities were seen between the two groups. Conclusion The results suggest that water-based walking exercise could lead to greater improvements in extensor muscle strength, proprioception and knee performance compared with land-based training following ACL reconstruction. Clinical Trial Registration number ChiCTR1900025930.

In order to promote the exploration and development of oil reservoirs in northern Shaanxi, the study of sedimentary facies characteristics in D area was carried out. Using core, logging and logging data, the Yan 9 oil layer group in the D area is divided into two small layers, Yan 91+2 and Yan 93. Based on the core description, the analysis of single-well sedimentary facies, continuous-well sedimentary facies, and planar sedimentary facies is carried out. It is believed that the Yan 9 member of the study area is a delta plain deposit, which is mainly composed of distributary channels, natural embankment and inter-branch swamp microfacies. Vertically, the sand bodies in the Yan 9 oil-bearing group are discontinuous, with distributary channels and inter-branch swamps mainly developed. Horizontally, the channels of the Yan 9 oil layer group spread out in strips on the plane, extending in the northwest-south east direction. There are 6 main rivers in the study area of Yan93 stage and 7 main rivers in Yan91+2 stage. Channel deposits constitute the main body of the sand body skeleton and are also the main oil and gas enrichment area.

We simulate and analyze the influence of nonlocal effects on the optical properties of thin metal hollow nanowires by finite element method. Nonlocal effects in hollow nanowires with both nm-sized overall volume and a tiny metal shell are considerable for extinction cross section but more for field enhancement, resulting in nonlocal plasmonic modes excited. Then, we show the dependence of extinction effects of a hollow super-nanowire on its parameters, including the metal shell thickness, the average radius and the optical constant of the hollow core. We find that nonlocal quadrupolar mode is very sensitive to the thickness of metal layer but with great stability as increasing the hollow nanowire dimension or changing the hollow core. Furthermore, the eccentricity of the hollow nanowire brings out new physical phenomena, such as nanofocusing and multimodes. The proposed structure promises a great of applications in nanoscale, such as designing nanoplasmonic antenna, sensing and nonlinear optics, etc.

The purpose of this meta-analysis was to compare the clinical outcomes of central pancreatectomy (CP) with distal pancreatectomy (DP). PubMed, Web of Knowledge, and Ovid's database were searched for studies published in English language between January 1990 and December 2018. A meta-analysis was performed to compare the clinical outcomes of CP

Objective: The present study aimed to assess proprioception of the knee to evaluate the effectiveness of backward walking for rehabilitation after anterior cruciate ligament (ACL) reconstruction. Methods: Patients (n = 52) who underwent ACL reconstruction in a single knee divided randomly into four experimental groups (A-D) and a control group, who all practiced a systematic rehabilitation exercise program. The patients in the experimental groups underwent backward walking using different treadmill angles: group A (0°), B (5°), C (10°) and D (15°). The whole training period comprised 4 weeks. Outcomes for the joint were assessed using the Angle Reproduction Test (ART) and Passive Motion Perception Test (PMPT). Results: Compared with the pre-training recorded parameters, significant differences were found in the ART and PMPT scores among all training groups and between the control group and the training groups. When the four training groups were compared with each other, there was no difference in the ART results between groups A and B, but significant differences were found between group A and groups C and D. Conclusion: Backward walking as a rehabilitation technique improved knee proprioception after ACL reconstruction. Increasing the angle of the treadmill during exercise improved the efficacy of rehabilitation.

β-adrenoceptor antagonist (β-blocker) may have potential in the treatment of septic shock and sepsis. However, the relevant research findings are still controversial.We conducted a systematic review and meta-analysis to explore the efficacy of β-blocker in patients with septic shock and sepsis. The primary sources of the reviewed studies through August 2018, with restriction on the language of English, were Pubmed and Embase. Randomized controlled trials (RCT) were included to evaluate the efficacy of β-blocker in the treatment of septic shock and sepsis. Meta analysis was performed using a random effect model. Two researchers independently searched articles, extracted data, and assessed the quality of the included studies.A total of 6 studies related to 5 original RCTs were qualified for inclusion in this systematic review and meta-analysis with a total of 363 patients with sepsis and/or septic shock. β-blocker was associated with a significantly decreased 28-day mortality compared to usual treatment group as the control (RR = 0.59, 95%CI: 0.48, 0.74; P 0.00001). Heart rate in β-blocker was significantly lower than that in the standard care group (SMD = -2.01, 95%CI: -3.03, -0.98; P = 0001).β-blocker of esmolol is safe and effective in improving 28-day mortality and controlling ventricular rate in patients with sepsis after fluid resuscitation, and has no significant adverse effect on tissue perfusion.

espanolAntecedentes: la bursectomia consiste en extirpar quirurgicamente el revestimiento peritoneal que cubre el pancreas y el plano anterior del mesocolon transversal durante la gastrectomia. Sin embargo, hay pocos datos para indicar si la bursectomia tiene un beneficio clinico. Objetivo: El objetivo de este estudio fue estudiar el efecto de la bursectomia sobre las complicaciones, la recurrencia y la supervivencia general de los pacientes con cancer gastrico. Metodos: la literatura publica disponible desde enero de 2000 hasta julio de 2017 sobre la gastrectomia con bursectomia y la gastrectomia estandar para el cancer gastrico se recupero mediante busquedas en las bases de datos en linea nacionales e internacionales. El metanalisis se realizo despues del proceso de extraccion de datos. Resultados: finalmente se incluyeron ocho estudios para un total de 1644 pacientes, de los cuales 644 se sometieron a bursectomia y 1000 recibieron gastrectomia estandar sin bursectomia. Como se muestra en los resultados del metanalisis, no hubo diferencias estadisticamente significativas en la presencia de complicaciones postoperatorias totales (odds ratio [OR] = 1.06, intervalo de confianza [IC] del 95% [0.83-1.35], p = 0.63) , recurrencia general (OR = 1.07, IC 95% [0.77-1.50], p = 0.68), supervivencia general a 3 anos (OR = 1.30, IC 95% [0.82-2.07], p = 0.26) y 5 anos supervivencia global (OR = 0,91; IC del 95% [0,66-1,27], p = 0,58). Conclusion: aunque la aplicacion de la bursectomia en la gastrectomia radical no aumento las complicaciones postoperatorias, no ofrecio ningun beneficio para controlar la recurrencia del tumor o mejorar la supervivencia general. EnglishBackground: Bursectomy consists of surgically removing the peritoneal lining covering the pancreas and the anterior plane of the transverse mesocolon during gastrectomy. However, there are little data to indicate whether bursectomy has a clinical benefit. Objective: The objective of this study was to study the effect of bursectomy on complications, recurrence, and overall survival of patients with gastric cancer. Methods: The publicly available literature published from January 2000 to July 2017 concerning gastrectomy with bursectomy and standard gastrectomy for gastric cancer was retrieved by searching the national and international online databases. Meta-analysis was performed after the data extraction process. Results: Eight studies were finally included for a total of 1644 patients, of whom 644 underwent bursectomy and 1000 received standard gastrectomy without bursectomy. As shown by the meta-analysis results, there were no statistically significant differences in the presence of total post-operative complications (odds ratio [OR] = 1.06, 95% confidence interval [CI] [0.83-1.35], p = 0.63), overall recurrence (OR = 1.07, 95% CI [0.77-1.50], p = 0.68), 3-year overall survival (OR = 1.30, 95% CI [0.82-2.07], p = 0.26), and 5-year overall survival (OR = 0.91, 95% CI [0.66-1.27], p = 0.58). Conclusion: Although application of bursectomy in radical gastrectomy did not increase post-operative complications, it offered no benefit to control tumor recurrence or improve overall survival. (REV INVEST CLIN. 2019;71:98-105)

Aim: The aim of this meta-analysis is to assess and validate the feasibility and safety of total thyroidectomy (TT) when compared to bilateral subtotal thyroidectomy (BST) for bilateral multinodular nontoxic goiter (BMNG). Materials and Methods: PubMed, Web of Knowledge, and Ovid's database were searched for studies published in English language between January 1990 and December 2014. A meta-analysis was performed to compare the complications and recurrences of TT versus BST. The search terms used were ‘total thyroidectomy', ‘bilateral subtotal thyroidectomy', ‘multinodular nontoxic goiter' and ‘randomized clinical trial'. The reference lists of relevant studies were checked manually to locate any missing studies. Results: Four trials with a total of 1,078 patients were analyzed. Although the incidence of transient hypoparathyroidism was higher in TT than in BST (OR = 2.59, 95% CI [1.58-4.24], p = 0.0002), TT was associated with a significantly lower incidence of recurrence (OR = 0.04, 95% CI [0.01, 0.17], p < 0.0001). There were no statistically significant differences for the presence of transient/permanent recurrent laryngeal nerve palsy and permanent hypoparathyroidism between the two groups. Conclusion: TT is a feasible and safe procedure for patients with BMNG. Although TT involves a significantly higher risk of postoperative transient hypoparathyroidism, it has a lower recurrence rate than BST.

Using first-principles calculations based on the density functional theory, the effects of atomic vacancy defect, Frenkel-type defect and transition metal Z (Z = Sc, V and Zr) doping on magnetic and electric properties of the Ti4N3 MXene nanosheet were investigated comprehensively. The surface Ti and subsurface N atomic vacancies are both energetically stable based on the calculated binding energy and formation energy. In addition, the former appears easier than the latter. They can both enhance the magnetism of the Ti4N3 nanosheet. For atom-swapped disordering, the surface Ti-N swapped disordering is unstable, and then the Frenkel-type defect will happen. In the Frenkel-type defect system, the total magnetic moment decreases due to the enhancement of indirect magnetic exchange between surface Ti atoms bridged by the N atom. A relatively high spin polarizability of approximately 70% was detected. Furthermore, the doping effects of transition metal Z (Z = Sc, V and Zr) on Ti4N3 nanosheet are explored. All doped systems are structurally stable and have relatively large magnetism, which is mainly induced by the directed magnetic exchange between surface Z and Ti atoms. Especially in the doped Ti4N3-Sc system, the high spin polarizability is still reserved, suggesting that this doped system can be a potential candidate for application in spintronics.

Surface-enhanced Raman scattering sensors and optical detection devices often incorporate rough surfaces or porous Si photonic crystals to enhance optical absorption and localized surface plasmon resonances. This study reports a porous Si photonic crystal structure fabricated on the backside of a crystalline Si substrate by room-temperature electrochemical etching. Scanning electron microscopy showed that the rough surface did not affect the vertical etching rate, but influenced the porosity and pore size distribution. X-ray diffraction analysis showed broader and lower-intensity peaks from the sample prepared on the back side, indicating that the backside porous Si had strong light-scattering effects and lattice contraction, which led to greater oxidation because of its higher porosity. A reflectance of ∼1% was obtained over a broad wavelength range (400–700 nm) and the optical reflectance suppression mechanism was analyzed. These optical characteristics showed backside porous Si photonic crystals have significant potential utility in photovoltaic and photonics applications.

An air monitoring and purifying device indoor was designed based on wireless transmission. The STC12C5A60S2 single-chip microcomputer was used as control core of the device, the parameters of indoor were collected by means of optical air quality sensor GP2Y1010AU0F MQ138, formaldehyde gas detection sensor and a temperature and humidity sensor module DHT11, and the communication was finished between the host and slave by the wireless transceiver module NRF24L01, Finally, the function of monitoring and purifying the air was realized.

The isolation of compounds produced by secondary metabolism of plants can lead to the discovery of new insecticidal agents. In light of this possibility, we isolated seven sesquiterpenes alkaloids from an ethanolic extract of Tripterygium wilfordii (Celastraceae) root bark, an important Chinese medicinal species. These were identified as wilforjine, 1-desacetylwilforgine, wilforgine, 1-desacetylwilforine, wilforine, wilfortrine and peritassines A. To characterize their biological activities, bioassays were conducted using different insect pest species of medical and agricultural importance. Wilforgine, 1-desacetylwilforine, and wilforine showed strong antifeedant effects to 3rd instar larvae of both Mythimna separata Walker (Lepidoptera: Noctuidae) (DC 50 = 17.68, 33.52 and 4.10 μg/ml, respectively) and Plutella xylostella L. (Lepidoptera: Plutellidae) (DC 50 = 54.62, 55.19 and 36.65 μg/ml, respectively) as well as knockdown activity in 3rd instar larvae of both M. separata (EC 50 = 630.30, 212.17 and 100.89 μg/ml, respectively) and P. xylostella (EC 50 = 177.51, 336.59 and 97.77 μg/ml, respectively). Moreover, 1-desacetylwilforgine, wilforgine, 1-desacetylwilforine, and wilforine showed insecticidal activity to 3rd instar larvae of Culex pipiens pallens Coquillett (Diptera: Culicidae) (LC 50 = 25.70, 25.40, 22.58 and 14.57 μg/ml, respectively) and adults of Musca domestica L. (Diptera: Muscidae) (LC 50 = 87.29, 70.19, 47.80 and 21.00 μg/ml, respectively). In general, wilforine was the most active sesquiterpene alkaloid isolated from T. wilfordii root bark. This is also the first report of insecticidal activity of 1-desacetylwilforgine and 1-desacetylwilforine. The potential use of T. wilfordii derivatives in botanical insecticides is discussed.

Two measures were presented to improve the laser-induced damage resistance of the optical films used in vacuum environments. Firstly, the impact of a few O 2 , N 2 and He 2 introduced in vacuum on the laser-induced damage threshold of the dielectric mirror coatings were investigated. Then, laser conditioning effects in atmosphere environments on the laser-induced damage threshold of the dielectric mirror coatings used in vacuum environments were also investigated. It was found that a few O 2 , N 2 introduced in vacuum can effectively improve the laser damage resistance of the optical films in vacuum environment due to the resistance to air-vacuum effect. However, a few He 2 have no this effect on laser induced damage threshold (LIDT) of the films. In addition, laser conditioning in atmosphere can also effectively improve the LIDT of the optical thin films used in vacuum environment.

Integrin-linked kinase (ILK), as a multi-functional regulator, has been associated with diabetic retinopathy (DR). In this study, we investigated whether inhibition of ILK could result in therapeutic effects. Diabetes mellitus's rats were induced by streptozotocin (STZ) injection. After 1 weeks induction, rats were injected intraperitoneally daily with ILK inhibitor, QLT0267, at 5 mg/kg. Then, the rats were examined by 4, 8, and 12 weeks after first STZ injection. We found that QLT0267 treatment could not only lower ILK level in retina at as early as 3 weeks after the onset of diabetes but also attenuate retina permeability, which was measured by Evan's blue. Maximum effect was found in 11 weeks treatment. Meanwhile, QLT0267 did not disturbed blood glucose concentration. Furthermore, QLT0267 inhibited Akt (Ser473) activation and reduced expression of HIF1α and VEGF which were evaluated by western blot, real time PCR, and immunohistochemistry. We conclude that ILK may be a new target for DR.