These results suggest that engineered hypoallergenic Der f 2 deri

These results suggest that engineered hypoallergenic Der f 2 derivatives expressed in the rice seed endosperm 4SC-202 inhibitor could serve as a basis for the development of

viable strategies for the oral delivery of vaccines against HDM allergy.”
“Objective: The aim of this study was to analyze all sports injuries incurred in competitions and/or training during the 2007 World Athletics Championships and to prove the feasibility of the injury surveillance system developed for the 2008 Olympic Games for individual sports.\n\nDesign: Prospective recording of injuries.\n\nSetting: 11(th) IAAF World Championships in Athletics 2007 in Osaka,Japan. Conclusion: The injury surveillance system proved feasible for individual sports. Risk of injury varied among the disciplines, with highest risk in combined disciplines, steeplechase, and long-distance runs. Preventive interventions

should mainly focus on overuse injuries and adequate rehabilitation of previous injuries.\n\nParticipants: All national team physicians and physiotherapists; Local Organising Committee (LOC) ICG-001 datasheet physicians working in the Medical Centres at the stadium and warm-up area.\n\nMain Outcome Measures: Frequency, characteristics, and incidence of injuries.\n\nResults: 192 injuries were reported, resulting in an incidence of 97 injuries per 1000 registered athletes. More than half of the injuries (56%) were expected to prevent the athlete from participating in

competition or training. Eighty percent affected the lower extremity; the most common diagnosis was thigh strain (16%). In most cases, the injury was caused by overuse (44%). A quarter of the injuries were incurred during training and 137 (71%) in competition. On average, 72.4 injuries per 1000 competing athletes were incurred in competitions. The incidence of injury varied substantially among the disciplines. The risk of a time-loss injury was highest in heptathlon, women’s 10,000 in, women’s 3000 in steeplechase, decathlon, and men’s marathon.\n\nConclusion: The injury surveillance ACY-738 concentration system proved feasible for individual sports. Risk of injury varied among the disciplines, with highest risk in combined disciplines, steeplechase, and long-distance runs. Preventive interventions should mainly focus on overuse injuries and adequate rehabilitation of previous injuries.”
“Brain MRI measures were correlated with neuropsychological function in 35 pediatric-onset multiple sclerosis (MS) patients and 33 age- and sex-matched healthy controls. Method: Mean age of MS patients was 16.3 +/- 2.3 years with average disease duration of 4.3 +/- 3.1 years. Cortical gray matter, thalamic, and global brain volumes were calculated for all participants using a scaling factor computed using normalization of atrophy method to normalize total and regional brain volumes for head size. T1- and T2-weighted lesion volumes were calculated for MS patients.

The results may be improved, however, with refinement in techniqu

The results may be improved, however, with refinement in techniques, for example, final kissing balloon inflation and double kissing balloon inflation.\n\n(J Interven Cardiol 2009;22:117-120).”
“To determine the effects of sporulation temperature and period on Bacillus licheniformis spore heat resistance, B. licheniformis strain No.25 spores were sporulated at 30, 37, 42, or 50 degrees C for 11 d and at 50 degrees C for 1.7, 4, 7, or 11 d. The heat resistance of B. licheniformis strain No.25 spores at 110 degrees C increased

with an increase in the sporulation temperature. Spores sporulated at 50 degrees C were 1.4-fold more heat resistant than those sporulated at 30 degrees C. Furthermore, the heat resistance of B. licheniformis

strain No.25 spores at 110 degrees C increased with an increase in the sporulation see more period. Spores sporulated for 11 d were 5.3-fold more heat resistant than those sporulated for 1.7 d. The heat HKI 272 resistance of B. licheniformis strain No.25 spores at 110 degrees C increased with increases in the sporulation temperature and sporulation period. The results presented in this study can be applied to the pasteurization process to control B. licheniformis spores. Pasteurization at 110 degrees C for about 60sec. is effective in controlling B. licheniformis spores isolated from dairy materials in yogurt production.”
“We study the system size dependence of the singlet-triplet excitation gap in the S = 1/2 kagome-lattice Heisenberg antiferromagnet by numerical diagonalization. We successfully obtain a new result of a cluster Rabusertib ic50 of 42 sites. The two sequences of gaps of systems with even-number sites and that with odd-number sites are separately analyzed. Careful examination clarifies that there is

no contradiction when we consider the system to be gapless.”
“The Xin actin-binding repeat-containing proteins Xin and XIRP2 are exclusively expressed in striated muscle cells, where they are believed to play an important role in development. In adult muscle, both proteins are concentrated at attachment sites of myofibrils to the membrane. In contrast, during development they are localized to immature myofibrils together with their binding partner, filamin C, indicating an involvement of both proteins in myofibril assembly. We identify the SH3 domains of nebulin and nebulette as novel ligands of proline-rich regions of Xin and XIRP2. Precise binding motifs are mapped and shown to bind both SH3 domains with micromolar affinity. Cocrystallization of the nebulette SH3 domain with the interacting XIRP2 peptide PPPTLPKPKLPKH reveals selective interactions that conform to class II SH3 domain-binding peptides.

We envision that the hybrid nanocarrier may serve as

prac

We envision that the hybrid nanocarrier may serve as

practical and multifunctional probe for cancer therapy and the presented synthesis approach here may also benefit the preparation of many other types of multifunctional inorganic-biomolecular hybrid nanostructures based on the DNA nanotechnology. (C) 2014 Elsevier Ltd. All rights reserved.”
“The integrity of bone-cement interface is essential for the long-term stability of cemented MX69 total joint arthroplasty. Although several studies have been carried out on bone-cement interface at continuum level, micromechanics of the interface has been studied only recently for tensile and shear loading cases. Fundamental studies of bone-cement interface at microstructural level are critical to the understanding of the failure processes of the interface, where multiple factors may contribute to failure. Here we present a micromechanical study of bone-cement interface under compression, which utilised in situ mechanical testing, time-lapsed microcomputed tomography (CT) and finite element (FE) modelling. Bovine trabecular bone was used to interdigitate with bone cement

to obtain selleck kinase inhibitor bonecement interface samples, which were tested in step-wise compression using a custom-made loading stage within the viCT chamber. A finite element model was built from the CT images of one of the tested samples and loaded similarly as in the experiment. The simulated stress-displacement response fell within the range of the experimental responses, and the predicted local strain distribution correlated well with the failure pattern in the subject-specific experimental model. Damage evolution with load in the samples was monitored both experimentally and numerically. The results from the FE simulations further revealed the development of damage in the regions of interest during compression, which may be useful towards a micromechanics understanding of the failure processes at bone-cement MK-4827 datasheet interface. (C) 2011 Elsevier Ltd. All rights reserved.”
“Multifunctional macrophage

inhibitory cytokine-1, MIC-1, is a member of the transforming growth factor-beta (TGF-beta) superfamily that plays key roles in the prenatal development and regulation of the cellular responses to stress signals and inflammation and tissue repair after acute injuries in adult life. The stringent control of the MIC-1 expression, secretion, and functions involves complex regulatory mechanisms and the interplay of other growth factor signaling networks that control the cell behavior. The deregulation of MIC-1 expression and signaling pathways has been associated with diverse human diseases and cancer progression. The MIC-1 expression levels substantially increase in cancer cells, serum, and/or cerebrospinal fluid during the progression of diverse human aggressive cancers, such as intracranial brain tumors, melanoma, and lung, gastrointestinal, pancreatic, colorectal, prostate, and breast epithelial cancers.


“Demonstration of substance abuse (drugs) and methods proh


“Demonstration of substance abuse (drugs) and methods prohibited in top sports, what we call the fight against doping in sports, is based on the detection and characterization of foreign substances in biological samples of athletes (urine, blood, hair). Such an approach is effective, but has many drawbacks. Therefore, we are looking for new ways of proving abuse of prohibited substances and methods. One of these is the strategy of long-term selleck compound monitoring of biomarkers for identifying and sanctioning blood doping in athletes. This strategy is based on the assumption that doping

will change values of biomarkers of the athlete that are otherwise kept in homeostasis. If we use a validated β-Nicotinamide mathematical model, it is possible to determine whether the change in the values of biomarkers is due to doping or due to natural variations. Such a model is a

biological passport, which enables the identification of the abnormal blood changes in biological indicators of the athlete. Since 2010 it has been possible to introduce sanctions against the athlete for breach of anti-doping rules based solely on an abnormal change of biomarkers. The introduction of the biological passport is a milestone in demonstrating drug abuse in sports, because it substantiates the abnormal deviations of biomarkers from the expected, although the cause of it remains unknown.”
“This paper compares three methods for estimating renal function, as tested in rats. Acute renal failure (ARF) was induced via a 60-min bilateral renal artery clamp in 8 Sprague-Dawley rats and renal function was monitored for 1 week post-surgery. A two-compartment model was developed for estimating glomerular filtration via a bolus injection selleck of a radio-labelled inulin tracer, and was compared with an estimated creatinine clearance method, modified using the Cockcroft-Gault equation for rats. These two methods were compared with selected ion

flow tube-mass spectrometry (SIFT-MS) monitoring of breath analytes. Determination of renal function via SIFT-MS is desirable since results are available non-invasively and in real time. Relative decreases in renal function show very good correlation between all 3 methods (R(2) = 0.84, 0.91 and 0.72 for breath-inulin, inulin-creatinine, and breath-creatinine correlations, respectively), and indicate good promise for fast, non-invasive determination of renal function via breath testing. (C) 2010 Elsevier Ireland Ltd. All rights reserved.”
“Although the cultivable and noncultivable microbial diversity of spacecraft assembly clean rooms has been previously documented using conventional and state-of-the-art molecular techniques, the occurrence of obligate anaerobes within these clean rooms is still uncertain.

However, the exact mechanism for its neuroprotective effect is no

However, the exact mechanism for its neuroprotective effect is not well understood. The present study aimed to investigate the molecular mechanisms underlying the protective action of IRN against A beta(25-35)-induced neurotoxicity in cultured rat pheochromocytoma (PC12) cells. Pretreatment with IRN significantly increased the cell viability, inhibited the release of lactate dehydrogenase

and the extent of DNA fragmentation in A beta(25-35)-treated cells. IRN treatment was able to enhance the protein levels of phosphorylated Akt (p-Akt) and glycogen synthase kinase-3.. (p-GSK-3..). www.selleckchem.com/products/AC-220.html Lithium chloride blocked A.. 25-35 induced cellular apoptosis in a similar manner as IRN, suggesting that GSK-3 beta inhibition was involved in neuroprotective action

of IRN. Pretreatment with LY294002 completely abolished the protective effects of IRN. Furthermore, IRN reversed A.. 25-35 induced attenuation in the level of phosphorylated cyclic AMP response OICR-9429 cost element binding protein (p-CREB) and the effect of IRN could be blocked by the PI3K inhibitor. These experimental findings unambiguously suggested that the protective effect of IRN against A beta(25-35)-induced apoptosis in PC12 cells was associated with the enhancement of p-CREB expression via PI3K/Akt/GSK-3 beta signaling pathway.”
“Finding a better first antiretroviral regimen is one of the strategies used to improve span and quality of life of HIV/AIDS patients. 891 patients were followed during 24 months or until interruption/abandonment of treatment, changing regimen or death. At the end of 6 months, 69% of the patients were still

being treated with the first regimen, 54% at 12 months, 48% at 18 months and Fosbretabulin 39% at 24 months. AZT-3TC-EFV was the most prescribed regimen and with the lesser discontinuation. NNRTI regimens showed high effectiveness and durability compared to PI regimens. Irregular medication dispensation was the only risk factor for failure/interruption of treatment in multivariate analyses. Intolerance/adverse effects were mainly responsible for first regimen discontinuation, followed by abandonment/non-adherence and virologic failure. Results showed significant difference between causes of interruption of first HAART with higher percentage of intolerance/adverse effects with PI regimens and higher immunologic failure with NNRTI regimens. Even with the availability of more potent and tolerable drugs, lack of adherence to HAART and high level of adverse effects are still the most important barriers to prolonged success of treatment. This study adds relevant information about durability and effectiveness of HAART in the first decade of its use in Brazil. (C) 2012 Elsevier Editora Ltda. All rights reserved.”
“Studies in laboratory rodents are shedding light on the pathophysiology of testicular ageing and now suggest a complicated basis for age-related declines in testicular function.

Objectives: To analyze the pathology of the epidural inflamma

\n\nObjectives: To analyze the pathology of the epidural inflammatory response, and to search for correlations between this process and clinical findings.\n\nMethods: Clinical data from 105 chondrodystrophic (CD) and nonchondrodystrophic (NCD) dogs with IVD extrusion were recorded. Epidural material from these dogs was examined histopathologically and immunohistochemically. Using statistical analysis, we searched for correlations between severity of epidural inflammation and various clinical and pathologic variables.\n\nResults:

Most dogs exhibited an epidural inflammatory response, ranging from acute invasion of neutrophils to formation of chronic granulation click here tissue. The mononuclear inflammatory infiltrates consisted mostly of monocytes and macrophages and only few T and B cells. Surprisingly, chronic inflammatory patterns also were found in animals with an acute clinical history. Severity of the epidural inflammation correlated with degree of the epidural hemorrhage and nucleus pulposus calcification (P = .003 and .040), but not with age, chondrodystrophic phenotype, neurologic grade, back pain, pretreatment, or duration. The degree of inflammation was statistically (P = .021) inversely correlated with the ability to regain ambulation.\n\nConclusion and Clinical Importance: Epidural inflammation occurs in the majority of dogs with IVD extrusion IKK inhibitor and may develop long before the onset

of clinical signs. Presence of calcified IVD material and hemorrhage in the epidural space may be the triggers of this lesion rather than an adaptive immune response to the nucleus pulposus as suggested in previous studies. Because epidural inflammation may affect outcome, further research is warranted.”
“Children born with a left ventricular outflow tract obstruction (LVOTO) can present with

symptoms of left ventricular (LV) failure while ejection fraction (EF) is normal. A more sensitive parameter of systolic function might be obtained with speckle tracking echocardiography, which describes ventricular longitudinal deformation in strain values. It is presumed that despite a normal or only slight decrease LY2090314 solubility dmso in ejection fraction, patients with a LVOTO demonstrate aberrations in the longitudinal deformation of the left ventricle. In addition, it is expected that after a successful intervention, longitudinal deformation returns to normal values. Standard trans-thoracic echocardiography was performed on 33 consecutive patients with a LVOTO, either an isolated aortic coarctation (AoCo) or an isolated aortic stenosis (AoSt). Before intervention a significant decrease in strain values was observed compared with the control group (N = 40), with an additional decrease in strain values in the first week after intervention (N = 16). Strain values recovered after a mean follow-up period of 42 wk (N = 9), though normal values were never reached.

We hypothesized that tumor DNA copy number alterations would allo

We hypothesized that tumor DNA copy number alterations would allow the identification of molecular pathways involved in SCLC progression. Array comparative genomic hybridization was performed on DNA extracted from 46 formalin-fixed paraffin-embedded SCLC tissue specimens. Genomic profiling of tumor and sex-matched control DNA allowed the identification of 70 regions of copy number gain and 55 regions of copy number loss. Using molecular pathway analysis, we found a strong enrichment in these regions of copy number alterations for 11 genes associated with the focal adhesion pathway. We verified these findings at the genomic, gene expression and protein

Selleck JQEZ5 level. Focal Adhesion Kinase (FAK), one of the central genes represented in this pathway, was commonly expressed in SCLC tumors and constitutively phosphorylated in SCLC cell lines. Those were poorly adherent to most JIB-04 order substrates but not to laminin-322. Inhibition of FAK phosphorylation at Tyr(397) by a small-molecule inhibitor, PF-573,228, induced a dose-dependent decrease of adhesion and an increase of spreading in SCLC cell lines on laminin-322. Cells that tended to spread also showed a decrease in focal adhesions, as demonstrated by a decreased vinculin expression. These results support the concept that pathway analysis of genes in regions of copy number alterations may uncover molecular mechanisms of disease progression

and demonstrate a new role of FAK and associated adhesion pathways buy PP2 in SCLC. Further investigations of FAK at the functional level may lead to a better understanding of SCLC progression and may have therapeutic implications.

Oncogene (2010) 29, 6331-6342; doi:10.1038/onc.2010.362; published online 30 August 2010″
“Malignant pleural mesothelioma (MPM) is a highly aggressive neoplasm primarily arising from surface serosal cells of the pleura and is strongly associated with asbestos exposure. Patients with MPM often develop pleural fluid as initial presentation. However, cytological diagnosis using pleural fluid is usually difficult and has limited utility. A useful molecular marker for differential diagnosis particularly with lung cancer (LC) is urgently needed. The aim of the present study was to investigate the diagnostic value of soluble mesothelin-related protein (SMRP) in pleural fluid. Pleural fluids were collected from 23 patients with MPM, 38 with LC, 26 with benign asbestos pleurisy (BAP), 5 with tuberculosis pleurisy (TP) and 4 with chronic heart failure (CHF), and the SMRP concentration was determined. All data were analyzed by using non-parametric two-sided statistical tests. The median concentration of SMRP in MPM, LC, BAP, TP and CHF were 11.5 (range 0.90-82.80), 5.20 (0.05-36.40), 6.65 (1.45-11.25), 3.20 (1.65-6.50) and 2.03 (1.35-2.80) nmol/l, respectively. The SMRP concentration was significantly higher in MPM than in the other diseases (P=0.001).

Despite the mechanistic nature of this hypothesis, most research

Despite the mechanistic nature of this hypothesis, most research has used latitude as a proxy for seasonality, failing to directly

examine the impact of temperature variation on physiology and range size. We used phylogenetically matched beetles from locations spanning 60 degrees of latitude to explore links between seasonality, physiology and elevational range. Thermal tolerance increased with seasonality across all beetle groups, but realized seasonality (temperature variation restricted PI3K phosphorylation to the months species are active) was a better predictor of thermal tolerance than was annual seasonality. Additionally, beetles with greater thermal tolerance had larger elevational ranges. Our results support a mechanistic framework linking variation in realized temperature to physiology and distributions.”
“The linoleic acid derivative 8-[2-(2-pentyl-cyclopropylmethyl)-cyclopropyl]-octanoic

acid (DCP-LA) activated Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) by inhibiting protein phosphatase-1 (PP-1). DCP-LA induced a transient huge facilitation of synaptic transmission monitored from the CAI region of rat hippocampal slices, which was largely inhibited by the CaMKII inhibitor KN-93. DCP-LA potentiated kainate-evoked whole-cell membrane currents for Xenopus oocytes expressing alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptors composed of the GluR1, GluR3, GluR1/GluR2, GluR1/GluR3, and GluR1/GluR2/GluR3 subunits, and the potentiation was Mizoribine nmr significantly inhibited by KN-93. A similar potentiation was still found with mutant GluR1 (S831A) receptor lacking CaMKII phosphorylation site. The GluR1 and GluR2 subunits MEK inhibitor formed AMPA receptors in the rat hippocampus, and DCP-LA increased expression of both the subunits on the plasma membrane. The DCP-LA action was blocked by KN-93 and the exocytosis inhibitor botulinum toxin type A, but not by the endocytosis inhibitor phenylarsine oxide. DCP-LA, thus, appears to activate CaMKII through PP-1 inhibition, that stimulates

AMPA receptor exocytosis to increase expression of the receptors on the plasma membrane, responsible for potentiate AMPA receptor responses and facilitation of hippocampal synaptic transmission. J. Cell. Physiol. 221: 183-188, 2009. (C) 2009 Wiley-Liss, Inc.”
“Objective. Patients suffering from schizophrenia demonstrate impaired low frequency electrophysiological responses to stimuli, but it remains unclear whether these abnormalities arise from phase resetting of ongoing oscillations, new phase-locked (evoked) activity or non-phase-locked (induced) activity Our goal is to clarify the contribution of each of these three processes to the impairment of neural activity during information processing in schizophrenia, by using statistics that do not confound increases in the mean post-stimulus signal with phase resetting Methods.

004) and inhibitory control (both p<0 010) There were, howeve

004) and inhibitory control (both p<0.010). There were, however, no differences between the two NF1 groups in spatial working memory (p=0.91) or response inhibition (p=0.78). Interpretation Executive dysfunction occurs with the find more same severity in children with NF1, whether or not they have a comorbid diagnosis of ADHD, suggesting

that executive impairments are not unique contributors to ADHD symptomatology in NF1. The findings are discussed within the context of recent evidence in Nf1 optic glioma (OPG) mice, in which a mechanistic connection between NF1 gene expression, executive system failure, and dopaminergic pathway integrity has been established.”
“Background: Immune dysfunction is very common in diabetes mellitus (DM). However, there is no evidence whether such immune dysfunction can influence the development of DM, especially the development of diabetic nephropathy (DN). Aim: To investigate the influence of absence

of T cells on DN. Materials and Methods: Balb/c nude mice and Balb/c wild-type nude (WT) mice were injected with streptozotocin (STZ). Serum tumor necrosis factor a (TNF-alpha), blood glucose, body weight, urine albumin/creatinine ratio and rate of kidney weight to body weight (KW/BW) were measured. Results: After modeling, there was no difference of blood glucose level between nude mice and WT mice except at week 2 (28.3 +/- 4.9 mmol/l vs 23.1 +/- 3.9 mmol/l, p smaller than 0.01). At week 4, the serum TNF-alpha level of nude mice got to 175.08 +/- 46.03 pg/ml (p smaller than 0.05, compared with baseline level 80.19 +/- WZB117 supplier 8.46 pg/ml), whereas the TNF-alpha levels

of WT mice was stable. At week 4, the body weight of nude mice was lower than that of WT mice (14.7 +/- 3.15 g vs 17.97 +/- 2.85 Selleck Screening Library g, p smaller than 0.05); the urine albumin/creatinine ratio (Alb/Cr) of nude mice was higher than that of WT mice (50.96 +/- 5.57 mg/mmol vs 41.09 +/- 5.79 mg/mmol, p smaller than 0.05); the kidney weight to body weight of nude mice was higher than that of WT mice (0.01352 +/- 0.00163 vs 0.01173 +/- 0.00131, p smaller than 0.05). Correlation analysis showed urine Alb/Cr positively correlated with serum TNF-a level at week 4 (r=0.588, p smaller than 0.01). At week 4, the increase of type IV collagen in the glomeruli was more prominent in diabetic nude mice than in diabetic WT mice (p smaller than 0.05). Conclusions: Absence of T cells in DM might influence the development of DN. (J. Endocrinol. Invest. 36: 938-943, 2013) (C) Editrice Kurtis”
“There have recently been significant increases in the prevalence of systemic invasive fungal infections. However, the number of antifungal drugs on the market is limited in comparison to the number of available antibacterial drugs. This fact, coupled with the increased frequency of cross-resistance, makes it necessary to develop new therapeutic strategies.

The chip, with 15 spin valve sensors, was designed to be integrat

The chip, with 15 spin valve sensors, was designed to be integrated in a recording chamber for submerged mice brain slices used for synaptic potential measurements. Under Birinapant nmr stimulation

(rectangular pulses of 0.1 ms every 10 s) through a concentric electrode placed near the CA3/CA1 border of the hippocampus, the spin valve sensor readout signals with 20 mu V amplitude and a pulse length of 20 to 30 ms were recorded only in the pyramidal cell bodies region and can be interpreted as being derived from action potentials/currents. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3562915]“
“Sub-micron Bi2Ru2O7+x + RuO2 oxide sensing electrodes (SE) for water quality sensors were prepared on platinised Selleck Sapanisertib ceramic substrate of the sensor. Their morphology was analysed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDX). Sensing properties of the Bi2Ru2O7+x + RuO2-SE were investigated for potentiometric detection of pH and dissolved oxygen (DO) in water in the temperature range of 4-30 degrees C. Sensor was capable to measure DO from 0.5 to 8.0 ppm and pH from 2.0 to 13.0, respectively. The obtained results

show acceptable linearity of the measuring characteristics. Long-term stability trial for Bi2Ru2O7+x + RuO2-SE revealed that bio-fouling can be one of the main destructive factors affecting the performance of the sensors in the long run. The screen-printing technology used learn more in the multisensory implementation provides fundamental properties of miniaturization, reasonable accuracy and low cost. (C) 2010 Elsevier Ltd and Techna Group S.r.l. All rights

reserved.”
“We synthesized three new donor-modified push-pull chromophores with the same divinylenethio-phenyl bridge and tricyanofuran acceptor, but with different modified donor moieties. Structure analysis and photophysical properties were carried out to compare the molecular mobility and steric hindrance effect of different donor-modified chromophores. Density functional theory calculations and thermal properties showed the different results of chromophores’ microscopic nonlinearity and thermal stability. In electro-optic activities, the poling process demonstrated that guest-host electro-optic polymers containing the chromophores with different steric hindrance and molecular free mobility, required different optimal poling condition to achieve the large macroscopic electro-optic coefficients. After the exploration of the poling condition, it showed an ultra large electro-optic coefficient (266 pm/V) for electro-optic polymer WJ5-APC-2, which indicated the fine-tuning of steric hindrance and molecular free mobility of chromophore WJ5 in host polymer APC-2. Meanwhile, steric hindrance also improved the temporal stability of electro-optic coefficients for WJ5-APC-2. (C) 2013 Elsevier Ltd. All rights reserved.”
“Rhizobium leguminosarum bv.