High-j Proton h11/2 and g7/2 Intruder Bands in 113In

Ma Ke Yan,Lu Jing Bin,Ma Ying Jun,Li Jian,Yang Dong,Sun Wu Ji,Wang Hao,Pan Hao Nan,Wang Jia Qi,Yang Qing Yu,Zhang Da Ming,Zhu Li Hua,Wu Xiao Guang,Zheng Yun,Li Cong Bo 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.76 No.12

Excited states of 113In have been populated through the heavy-ion fusion evaporation reaction 110Pd(7Li, 4n)113In. A new band with the configuration of a proton d5/2 orbital is identified. Two ΔI = 2 intruder bands, built on the πh11/2 and the πg7/2 orbitals, have been extended to spins (63/2-)ħ and (55/2+)ħ, respectively. The negative-parity πh11/2 intruder band shows a smooth increase in aligned spin, which is attributed to a strong proton-neutron interaction. The properties of the positive-parity πg7/2 band are discussed based on tilted axis cranking model calculations, and the features of the antimagnetic rotation for this band are shown after backbend. Furthermore, the contributions of the two-shears-like mechanism, the neutron (gd)ν shell and the core rotation are investigated for the positive-parity πg7/2 band.

Ifosfamide-containing Regimens for Treating Patients with Osteosarcomas

Li, Yan-Yan,Jiang, Xiao-Ming,Dong, Yi-Guo,Xu, Gang,Ma, Yu-Bo Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.22

Background: This systemic analysis was conducted to evaluate the efficacy and safety of an ifosfamide-containing regimen in treating patients with osteosarcoma. Methods: Clinical studies evaluating the efficacy and safety of Ifosfamide-containing regimen on response and safety for patients with osteosarcoma were identified by using a predefined search strategy. Pooled response rate (RR) of treatment were calculated. Results: When ifosfamide-containing regimens were evaluated, 4 clinical studies which including 134 patients with osteosarcoma were considered eligible for inclusion. Systemic analysis suggested that, in all patients, pooled RR was 44.8% (60/134) in ifosfamide-containing regimens. Major adverse effects were neutropenia, leukopenia, and fatigue inIfosfamide-containing regimens; No treatment related death occurred in cantharidin combined regimens. Conclusion: This systemic analysis suggests that ifosfamide-containing regimens are associated with good response rate and acceptable toxicity in treating patients with osteosarcoma, but this result should be confirmed by randomized clinical trials.

Overexpression of a maize MYB48 gene confers drought tolerance in transgenic arabidopsis plants

Yan Wang,Qianqian Wang,MingLi Liu,Chen Bo, Xi Wang,Qing Ma,Beijiu Cheng,Ronghao Cai 한국식물학회 2017 Journal of Plant Biology Vol.60 No.6

MYBs are a vital family of transcription factorsthat play critical roles in plant development and stressresponse. However, knowledge concerning the functions ofMYBs in the non-model plants is still limited. In this study,we isolated a R1-type MYB gene from maize (Zea mays L.),designated as ZmMYB48. Quantitative RT-PCR analysisdemonstrated that ZmMYB48 expression was induced bydrought and ABA treatments. Subcellular localization analysisrevealed that ZmMYB48 protein was targeted to the nucleusin tobacco leaf epidermal cells. Transactivation assay in yeastdemonstrated that ZmMYB48 had transcriptional activationability. Heterologous overexpression of ZmMYB48 inArabidopsis remarkably improved plant tolerance to droughtstress, as determined through physiological analyses ofsurvival rate, relative water content, malonaldehyde content,relative electrolyte leakage and proline content. Moreover,overexpression of ZmMYB48 enhanced the expression ofstress/ABA-responsive genes such as P5CS1, RD22, RD29Band ABI1. In addition, ZmMYB48-overexpressing plantsaccumulated higher content of ABA than WT plants underdrought stress. These results demonstrate that ZmMYB48might act as a positive regulator that participates in thedrought stress response through ABA signalling.

Molecule-based electrorheological material assembled using β-cyclodextrin as substrate

Yan-Li Shang,Yun-Ling Jia,Yun Ma,Jun-Ran Li,Shao-Hua Zhang,Ming-Xiu Li 한국유변학회 2010 Korea-Australia rheology journal Vol.22 No.1

Molecule-based electrorheological (ER) materials as a novel type of ER materials, the inclusion compound [H2(β-CD-A)-PTA] between p-toluenesulfonic acid (PTA, guest) and H2(β-CD-A) (host) that is dicarboxylic acid of β-cyclodextrin (β-CD) , and the rare earth (RE) complexes [(β-CD-A)-PTA]3RE2 (RE=La, Gd, Y)of H2(β-CD-A)-PTA, were synthesized. The ER performance and dielectric property of the materials were studied. Our results show that the molecule-based ER materials assembled using β-cyclodextrin as a substrate,especially the inclusion compound and its rare earth (RE) complexes exhibit clear ER effect. The inclusion PTA can markedly enhance the ER performance of H2(β-CD-A) material. The ER activity of the yttrium complex is the highest among these materials. The characteristic of the molecule in molecule-based ER materials is an important factor in influencing ER property.

Effects of the refractive index of the encapsulant on the light-extraction efficiency of light-emitting diodes.

Ma, Ming,Mont, Frank W,Yan, Xing,Cho, Jaehee,Schubert, E Fred,Kim, Gi Bum,Sone, Cheolsoo Optical Society of America 2011 Optics express Vol.19 No.5

<P>We investigate the effects of the refractive index of the encapsulant on the light-extraction efficiency (LEE) of light-emitting diodes (LEDs) for GaN LEDs (n ??? 2.5) and AlGaInP LEDs (n ??? 3.0). For non-absorbing rectangular parallelepiped LED chips, as the refractive index of the encapsulant increases, the LEE first increases quasi-linearly, then increases sub-linearly, and finally a saturation is reached. Furthermore, LEDs with a dual-layer graded-refractive-index (GRIN) encapsulant (n(encapsulant 1) = 1.57 and n(encapsulant 2) = 1.41) is fabricated through a two-step curing process. We demonstrate that such an LED further enhances the LEE by reducing Fresnel reflection loss at the encapsulant/air interface by 35% compared with an LED encapsulated with a single-layer encapsulant (n(encapsulant) = 1.57).</P>

Targeted Suppression of Connexin 43 in Ovine Preimplantation Embryos by RNA Interference Using Long Double-stranded RNA

Yan, Zhen,Ma, Yu Zhen,Liu, Dong jun,Cang, Ming,Wang, Rui,Bao, Shorgan Asian Australasian Association of Animal Productio 2010 Animal Bioscience Vol.23 No.4

RNA interference (RNAi) is an acknowledged useful and effective tool to study gene function in various cells. Here, we suppressed the Connexin 43 (Cx 43) gene expression during in vitro development of ovine pre-implantation embryos using the RNAi method. The 353 bp Cx 43 double-stranded RNA was microinjected into in vitro fertilized ovine zygotes, and the levels of target mRNA and protein were investigated. Control groups included uninjected zygotes or those injected with RNase-free water. The dsRNA injection resulted in the specific reduction of Cx 43 transcripts as analyzed by quantitative real-time RT-PCR and decreased protein levels as shown by Western blot analysis at the blastocyst stage. Microinjection of Cx 43 dsRNA led to 20.3%, 21.7% and 34.5% blastocyst rates and 19.2%, 37.5% and 41.3% hatched blastocyst rates in Cx 43 dsRNA-injected, water-injected and uninjected groups, respectively. Then the RNAi could not significantly affect cell number and cell death rates of blastocysts. Therefore, suppression of Cx 43 dsRNA and proteins did not apparently affect the development potential of ovine pre-implantation embryos but may play a role in embryo quality. RNAi technology is a promising approach to study gene function in early ovine embryogenesis.

Recyclable Fe3O4/Au Nanocomopsites for Oxidation Degradation of Methylene Blue in Near Neutral Solution

Yan Xing,Xiao-Hui Bai,Ming-Li Peng,Xiang-Rong Ma,Norbert Buske,Ya-Li Cui 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2019 NANO Vol.14 No.10

Fe3O4/Au nanocomopsites (Fe3O4/Au NPs) with much improved catalytic activity were successfully fabricated through a simple seed growth method in aqueous solution. The petal-like structure, high saturation magnetization, the negatively charged sodium citrate-stabilized Fe3O4/Au NPs was characterized by transmission electron microscopy (TEM), X-ray diffractometer (XRD), dynamic light scattering (DLS) and vibrating sample magnetometry (VSM). The activated-H2O2 ability of Fe3O4/Au NPs was evaluated by using methylene blue (MB) as a cationic phenothiazines dye to be degraded in near neutral solution. The results showed Fe3O4/Au NPs removed over 95% MB from an aqueous solution within 60 min under the optimum conditions. The apparent rate constant of Fe3O4/Au NPs was 10.8 x 10 -2 min -1 which was 43.2 and 8.3 times higher than pure Fe3O4 (2.5 x 10 -3 min -1) and Au (1.3 x 10 -2 min -1) NPs. The enhanced catalytic activity and increased oxidation rate constant probably owing to the synergistic effect between Fe3O4 and Au NPs to activate H2O2 generate a large amount of strong oxidizing species, such as ·OH. In addition, nanocrystalline structure of Fe3O4/Au NPs was also very important to the peroxidase-like effect, especially the interaction interface between Fe3O4 and Au NPs. Moreover, Fe3O4/Au NPs was stable and could be regenerated and reused for at least five cycles.

Optical properties of Ag@cicada wing substrate deposited by Ag nanoparticles

Wang Mingli,Yan Xiaoya,Shi Guochao,Shang Zubin,Zhang Anqi,Ma Wanli 한국물리학회 2020 Current Applied Physics Vol.20 No.11

In this paper, Ag nanoparticles were deposited on Ag@cicada wing array by using the cicada wings as templates to study its optical properties, including surface enhanced Raman scattering (SERS), polarization and surface enhanced fluorescence (SEF). The nanogaps between adjacent conical protrusion can be well dominated by adjusting the sputtering time and the optimal substrate AgNPs@Ag@cicada wing arrays have a noteworthy enhancement of SERS signal. Characterization of the prepared optimal substrate certified that it possesses the excellent SERS performances. Basically consistent SERS signal strength at the different polarization angles of the optimal substrate indicates that its polarization-independence. The SEF spectra shows that the optimal substrate has a slightly lower and unstable enhancement at this initial stage of repeated examination due to the weak adhesion between the Ag@cicada wing arrays and Ag nanoparticles. The outstanding optical properties indicate that it has enormous potential in the label-free detection and biological analytes determination.

Peach-specific aldehyde nonanal attracts female Oriental fruit moths, Grapholita molesta (Lepidoptera: Tortricidae)

Hui-Ming Xiang,Rui-Yan Ma,Hong-Liang Diao,Xian-Wei Li,Xiao-Juan He,Yong-Fu Guo 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.4

The oriental fruit moth (OFM), Grapholita molesta (Lepidoptera: Tortricidae), is a serious pest of stone and pome fruit trees worldwide. G. molesta can switch hosts and produce multiple generations per year. Both the primary and secondary host plants of G. molesta emit aldehydes. Here, we tested whether these aldehydes are helpful for host switching of G. molesta. SPME (Solid Phase Microextraction)-GC–MS analysis identified four aldehydes (octanal, nonanal, decanal, and benzaldehyde) from volatiles of late-season yellow peach fruits. Of the four aldehydes, eletroantennogram analysis showed that nonanal produced the strongest response from the antennae of virgin and mated females. In Y-tube bioassays, only nonanal was attractive to mated G. molesta females amongst the four aldehydes, suggesting that nonanal is important for host recognition in G. molesta. In a field trial, each of the four aldehydes was tested as an attractant for both sexes of G. molesta. The traps baited with nonanal captured more female G. molesta, as compared to traps with other aldehydes and control; the traps baited with benzaldehyde captured most male G. molesta. Our research investigations provide theoretical foundation for biological control of G. molesta females. Future G. molesta lure designs should take into account sex-specific differences in the response to individual aldehydes.

Two terpenoids activates close mating behavior and enhances trap efficiency of sex pheromone of Grapholita molesta

Hui-Ming Xiang,Zhen Chen,Xian-Wei Li,Yan-Qiong Guo,Xian-Chun li,Rui-Yan Ma 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.4

Grapholita molesta (Busck) (Lepidoptera: Tortricidae) is a notorious pest of many Rosaceae crops worldwide. Enhancement of trap efficiency of its sex pheromone was devised by addition of E-β-ocimene and E-β-farnesene. The addition of E-β-ocimene or E-β-farnesene to sex pheromone increased electroantennogram response of male G. molesta compared to sex pheromone alone. Blend of pheromone and E-β-ocimene or E-β-farnesene in 1:0.1 increased the upwind flight and landing behaviors. Furthermore, field experiments showed that sex lures with Eβ-ocimene, or /and E-β-farnesene, enhanced trapping efficiency compared to sex pheromone alone. These results may provide the basis for the development of efficient pest management systems against G. molesta using plant volatiles and insect sex pheromones.