It is thought that TI induced a short term reduction in ventilatory efficiency, which appeared to be countered by a series of compensatory mechanisms that include increased ventilation rates, and maintenance of the primary stress response. TI remains one of the most enigmatic areas of biology for all taxa and further research into its underlying psychological, physiological
and neurological processes is recommended. (C) 2011 Elsevier BM. All rights reserved.”
“Nausea and vomiting in pregnancy is a continuum that ranges from mild discomfort to significant morbidity. Systematic assessment with the use of the Pregnancy-Unique Quantification GSI-IX supplier of Emesis/Nausea (PUQE) index and timely treatment using evidence-based protocols can decrease the time that many women spend using treatment recommendations that are inadequate. This article reviews the epidemiology
of nausea and vomiting in pregnancy, use of the PUQE index, and the evidence for specific nonpharmacologic and pharmacologic treatment regimens. A protocol for clinical management is presented. J Midwifery Womens Health 2009; 54: 430-444 (C) 2009 by the American College of Nurse-Midwives.”
“DeLong, J. M., Hodges, D. M., Prange, R. K., Forney, C. F., Toivenon, P. M. A., VX-661 Bishop, M. C., Elliot, M. L. and Jordan, M. A. 2011. The unique fatty acid and antioxidant composition of ostrich fern (Matteuccia struthiopteris) fiddleheads. Can. J. Plant Sci. 91: 919-930. The purpose of this study was to investigate the health-promoting composition of ostrich fern (Matteuccia struthiopteris) fiddlehead tissue by focussing on its fatty acid and antioxidant content and antioxidant activity. The curled crosiers (fiddleheads)
were harvested following emergence and before 10 cm growth from eight or nine sites in eastern Canada during 2008 and 2009. The crosiers were then refrigerated or kept on ice until cleaned, subsequently frozen in liquid nitrogen, and then stored at -85 degrees C. All tissue samples (except those used for ascorbate analysis) were freeze-dried, ground in a ball mill and stored at -80 degrees C until analyzed. The current study showed that fiddlehead tissue had an unusual JAK inhibitor fatty acid composition including gamma-linolenic, dihomo-gamma-linolenic, arachidonic and eicosapentanoeic acids. The concentration of the antioxidant compounds ascorbic acid [3.0 mu mol g(-1) dry 432 weight (DW)], alpha- and gamma-tocopherol (314 and 80.8 mu g g(-1) DW, respectively) and alpha- and beta-carotene (43.8 and 122 mu g g(-1) DW, respectively) and the xanthophyll pigments violaxanthin (225 mu g g(-1) DW), zeaxanthin (127 mu g g(-1) DW) and lutein (238 mu g g(-1) DW) ranged from high to very high for green plant tissue. The phenolic compound content (51.6 mg gallic acid equiv.
Regional estimates of binding potential (BPND) were obtained by calculating total volumes of distribution (V-T) for presynaptic dorsal raphe nucleus (DRN) and postsynaptic cortical regions. Relative to placebo, citalopram infusion significantly increased [C-11]CUMI-101 BPND at postsynaptic 5-HT1A receptors in several cortical regions, but there was no change in binding at 5-HT1A autoreceptors in the DRN. Across the postsynaptic brain regions, citalopram treatment induced
a mean 7% in [C-11]CUMI-101 BPND (placebo 1.3 (0.2); citalopram 1.4 (0.2); paired t-test P = 0.003). The observed increase in postsynaptic [C-11]CUMI-101 availability identified following acute citalopram administration could be attributable www.selleckchem.com/products/jib-04.html to a decrease in endogenous 5-HT availability in cortical terminal regions, consistent with preclinical animal studies, in which acute administration of SSRIs decreases DRN cell firing through activation of 5-HT1A autoreceptors to reduce 5-HT levels in postsynaptic regions. We conclude that [C-11]CUMI-101 may be sensitive to changes in endogenous 5-HT release in humans.”
“Polynucleotide MEK162 purchase DNA and RNA editing enzymes alter nucleic acid sequences and can thereby modify encoded
informational content. Two major families of polynucleotide editing enzymes, the AI D/APO BEC cytidine deaminases (which catalyze the deamination of cytidine to uridine) and the adenosine deaminases acting on RNA (ADARs, which catalyze the deamination of adenosine to inosine), function in a variety of host defense mechanisms. These enzymes act in innate and adaptive immune pathways, with both host and pathogen targets. DNA editing by the cytidine deaminase AI D mediates immunoglobulin somatic hypermutation and class switch recombination, providing the antibody response with the flexibility and diversity to defend against an almost limitless array of varied and rapidly 3 adapting pathogenic challenges. Other cytidine deaminases (APO BEC 3) restrict retroviral infection by editing viral retrogenomes. Adenosine deaminases (ADARs) shape innate immune responses by modifying host transcripts that encode
immune effectors and their regulators. Here we review current knowledge of polynucleotide DNA and R406 RNA editors with a focus on these and other functions they serve in the immune system.”
“Objective: We investigated the image quality of multiplanar reconstruction (MPR) using adaptive statistical iterative reconstruction (ASIR).\n\nMethods: Inflated and fixed lungs were scanned with a garnet detector CT in high-resolution mode (HR mode) or non-high-resolution (HR) mode, and MPR images were then reconstructed. Observers compared 15 MPR images of ASIR (40%) and ASIR (80%) with those of ASIR (0%), and assessed image quality using a visual five-point scale (1, definitely inferior; 5, definitely superior), with particular emphasis on normal pulmonary structures, artefacts, noise and overall image quality.
We report a patient with bilateral superior altitudinal hemianopia.\n\nCase Report: A 40-year-old man developed bilateral superior altitudinal hemianopia secondary to bilateral parahippocampal and fusiform gyrus lesions. Vision loss was acute, and onset bilateral and simultaneous. Complete neuro-ophthalmologic examinations were performed. His best corrected visual acuity was 20/20 in each eye. Macula and BMS-777607 supplier retina examinations were normal. Visual fields were characterized by bilateral upper hemianopia. Cerebral magnetic resonance imaging (MRI) confirmed the presence of symmetrical lesions confined within both bilateral parahippocampal and fusiform gyri. Blood tests, transesophageal echocardiographic examination,
and Doppler ultrasonography of the vertebrobasilar arterial system and carotids were normal.\n\nConclusion: We conclude that embolic events may induce a bilateral superior altitudinal hemianopia.”
“Background: Major surgery and severe trauma typically lead to massive blood loss requiring rapid transfusion of large amounts of blood products. It has been suggested that fresh, unrefrigerated whole blood provides a haemostatic advantage in this setting. The aim of the current study Selleckchem NCT-501 was to compare the clot formation parameters of fresh, unrefrigerated whole blood and whole blood reconstituted from components stored for varying
periods of time, using rotational thromboelastography (ROTEM (R)). Methods: Fresh whole blood and reconstituted whole blood using combinations of this website non-leucoreduced red cell units (stored for 7, 14, 21, 28, or 35 days), platelet concentrates (stored for 1, 3 or 5 days), and fresh frozen plasma (stored for 6 months) were analysed using ROTEM. Measurements of the clotting time (CT), clot formation time (CFT), and maximal clot firmness (MCF) were 3 compared between units of fresh whole blood and reconstituted whole blood samples. Results: There was no difference in the haemostatic parameters measured of fresh whole blood
and reconstituted whole blood using red cell units stored for less than 21 days. ROTEM demonstrated that the CT and CFT were significantly shorter for reconstituted whole blood samples using red cells stored for longer than 21 days when compared to fresh whole blood and to reconstituted whole blood samples using red cell units stored for less than 21 days. The CT was inversely correlated to the duration of platelet storage. The MCF was unchanged regardless of duration of blood product storage. Conclusion: Fresh unrefrigerated whole blood and blood products stored for short duration (less than 21 days) were not superior to those stored for longer durations.”
“Immune responses and DNA damage repair are two fundamental processes that have been characterized extensively, but the links between them remain largely unknown. We report that multiple bacterial, fungal and oomycete plant pathogen species induce double-strand breaks (DSBs) in host plant DNA.
Provided that certain oncologic and practical criteria are applied, it has the potential for allowing less invasive surgery and improved cosmetic outcomes without increased oncologic risk in appropriately selected patients. (Plast. Reconstr. Surg. 123: 1665, 2009.)”
“A genome-wide transcriptional profile of Bradyrhizobium japonicum, the nitrogen-fixing endosymbiont of the soybean plant, revealed differential expression of approximately 15% of the genome after a 1 mM treatment with the phytohormone check details indole-3-acetic acid (IAA). A total of 1,323 genes were differentially expressed (619 up-regulated and 704 down-regulated)
at a two-fold cut off with q value <= 0.05. General stress response genes were induced, such as those involved in response to heat, cold, oxidative, osmotic, and desiccation stresses and
in exopolysaccharide (EPS) biosynthesis. This suggests that IAA is effective in activating a generalized stress response in B. japonicum. The transcriptional data were corroborated by the finding that stress tolerance of B. japonicum in H 89 cost cell viability assays was enhanced when pre-treated with 1 mM IAA compared to controls. The IAA treatment also stimulated biofilm formation and EPS production by B. japonicum, especially acidic sugar components in the total EPS. The IAA pretreatment did not influence the nodulation ability of B. japonicum. The data provide a comprehensive overview of the potential transcriptional responses of the symbiotic bacterium when exposed to
the ubiquitous AC220 ic50 hormone of its plant host.”
“A fast and simple method for the direct qualitative and semi-quantitative determination of a set of four polymer additives in plastic samples by desorption electrospray ionization time-of-flight mass spectrometry (DESI-TOF-MS) is presented. After evaluation of crucial DESI parameters such as composition of spray solutions and spray voltages, a series of lab-made polypropylene samples containing Chimassorb 81 (2-hydroxy-4-n-octoxybenzophenone), Tinuvin 328 (2-(2-hydroxy-3, 5-ditert-pentylphenyl)-benzotriazole), Tinuvin 326 (2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-3 5-chloro benzotriazole), and Tinuvin 770 (bis(2,2,6,6,-tetramethyl-4-piperidyl)sebaceate) in concentrations between 0.02% and 0.2% were analyzed, resulting in calibration graphs with R (2) better than 0.994. To demonstrate the applicability of the developed method for the investigation of real samples, liners for in-ground swimming pools and polypropylene granules were analyzed with respect to their content in the selected polymer additives. Two alternative methods, both well established in the fields of polymer additive analysis, namely HPLC with UV detection (after previous extraction) and thermodesorption gas chromatography/mass spectrometry have been employed for evaluation of the results from the DESI experiments.”
“The microalgae. Chlorella sp.
The relationship between prion propagation, generation selleck screening library of neurotoxic species and clinical onset has remained obscure. Prion incubation periods in experimental animals are known to vary inversely with expression level of cellular prion
protein. Here we demonstrate that prion propagation in brain proceeds via two distinct phases: a clinically silent exponential phase not rate-limited by prion protein concentration which rapidly reaches a maximal prion titre, followed by a distinct switch to a plateau phase. The latter determines time to clinical onset in a manner inversely proportional to prion protein concentration. These findings demonstrate an uncoupling of infectivity and toxicity. We suggest that prions themselves are not neurotoxic but catalyse the formation of such species from PrPC. Production of neurotoxic species is triggered when prion propagation saturates, leading to a switch from autocatalytic production of infectivity (phase 1) to a toxic
(phase 2) pathway.”
“To determine the apicultural value of Vigna unguiculata (L.) Walp. (Fabaceae) buy CP-456773 and evaluate the Apis mellifera adansonii Latreille (Hymenoptera: Apidae) activity on its pod and seed yields, the bee foraging and pollinating activities were studied in Ngaoundere. The experiment was carried out within the University of Ngaoundere Campus on 210 flowers differentiated in two lots, based on the protection/or not of plant inflorescences against insect visits. The bee’s seasonal rhythm of activity, its foraging behaviour on flowers, the fructification rate, the number and dry weight of seeds/pod, the percentage of normal seeds/pod, and the pod length were evaluated. Results show that A. m. adansonii foraged on plants throughout the whole blooming period. Worker bees intensively and preferably harvested nectar. The greatest mean number of workers foraging simultaneously was 500 per 1000 flowers. The mean foraging speed was 8.67 flowers/min. These findings
allow the classification of V. unguiculata as a highly nectariferous bee plant. The number and dry weight of seed/pod, the pod length and the percentage of normal seeds/pod from unprotected YH25448 supplier flowers were significantly higher than those of flowers protected from insects. The fructification rates were 62 and 48%, while the percentages of healthly seeds were 97.61 and 76.17%, respectively in unprotected and protected inflorescences. The installation of A. m. adansonii colonies close to V. unguiculata field could be 432 recommended to improve its pods and seeds production in the region.”
“The growing number of bacterial strains resistant to conventional antibiotics has become a serious medical problem in recent years. Marine sponges are a rich source of bioactive compounds, and many species can be useful for the development of new antimicrobial drugs. This study reports the in vitro screening of marine sponges in the search for novel substances against antibiotic-resistant bacteria.
The lowest dose of CLON injected into the
MnR decreased the total risk assessment (TRA) frequency, an ethological parameter of anxiolytic-like effect, but did not change 4 feeding behavior. The highest dose of CLON injected into the MnR increased the TRA frequency, an anxiogenic-like effect. Similar result was observed after CLON injected into the Pn and mRt at the highest dose. In addition, clonidine at the highest dose caused hyperphagy accompanied by a reduction in the latency to start eating and an increase in feeding frequency when injected into the MnR but not in the Pn or mRt. These data indicate that MnR alpha(2)-adrenergic receptors participate in the control of anxiety-like and feeding behaviors, probably decreasing the facilitatory influence on MnR serotonergic neurons. The present results SB273005 mouse suggest that
these behaviors involve independent neural pathways. (C) 2010 Elsevier B.V. All rights reserved.”
“Cold shock domain proteins (CSPs) are highly conserved from bacteria to higher plants and animals. Bacterial cold shock proteins function as RNA chaperones by destabilizing RNA secondary structures and promoting translation as an adaptative mechanism to low temperature stress. In animals, cold shock domain proteins exhibit broad functions related to growth and development. In order to understand better the function of CSPs in planta, detailed analyses were performed for Arabidopsis selleck screening library thaliana CSPs (AtCSPs) on the transcript and protein levels using an extensive series of tissue harvested throughout developmental stages within the entire life cycle of Arabidopsis. On both the transcript and protein levels, AtCSPs were enriched in shoot apical meristems and siliques. Although all AtCSPs exhibited similar expression patterns, AtCSP2 was the most abundantly expressed gene. In situ hybridization analyses were also used to confirm SN-38 that AtCSP2 and AtCSP4 transcripts accumulate in developing embryos and shoot apices. AtCSPs
transcripts were also induced during a controlled floral induction study. In vivo ChIP analysis confirmed that an embryo expressed MADS box transcription factor, AGL15, interacts within two AtCSP promoter regions and alters the respective patterns of AtCSP transcription. Comparative analysis of AtCSP gene expression between Landsberg and Columbia ecotypes confirmed a 1000-fold reduction of AtCSP4 gene expression in the Landsberg background. Analysis of the AtCSP4 genomic locus identified multiple polymorphisms in putative regulatory cis-elements between the two ecotypes. Collectively, these data support the hypothesis that AtCSPs are involved in the transition to flowering and silique development in Arabidopsis.”
“Background Despite early repair, patients with aortic coarctation (CoA) continue to have a reduced life expectancy due to the development of late complications.
9%. Polypectomy rates ranged between 22.6% and 26.2% for screening colonoscopy, and between 27.1% and 30.8% for nonscreening colonoscopy. Adjusted ORs for indication ranged between 0.74 and 0.94.\n\nDISCUSSION: Although the proportion of colonoscopies identified as screening varied considerably among the indications, the estimated polypectomy rates were similar.\n\nCONCLUSION: The findings suggest that the way screening is defined does not greatly affect the estimates of polypectomy rate.”
“Vesicular trafficking plays a key role in tuning
the activity of Notch signaling. Here, we describe a novel and conserved Rab geranylgeranyltransferase (RabGGT)-alpha-like subunit that is required for Notch signaling-mediated lateral inhibition and cell fate determination of external sensory organs. This protein is encoded by tempura, and its loss affects the secretion of Scabrous and Delta, two proteins required for proper Notch signaling. Napabucasin nmr We show that Tempura forms a heretofore uncharacterized 123 RabGGT complex that geranylgeranylates Rab1 and Rab11. This geranylgeranylation is
required for their proper subcellular MK-2206 price localization. A partial dysfunction of Rab1 affects Scabrous and Delta in the secretory pathway. In addition, a partial loss Rab11 affects trafficking of Delta. In summary, Tempura functions as a new geranylgeranyltransferase that regulates the subcellular localization of Rab1 and Rab11, which in turn regulate trafficking of Scabrous and Delta, thereby affecting Notch signaling.”
“Aimed to evaluate the progression of the disease and oxidative damage in goats with anemia and respiratory disease by application of parenteral iron. Six goats, adults, with anemia and respiratory disease (coughing, sneezing and nasal discharge) were studied. The control group was composed of six adults goats, healthy. The goats of both groups after undergoing clinical evaluation received similar dose (0.5g)
of ferric hydroxide in complex dextran intramuscularly. Blood samples collected in EDTA before the application of iron and 48 hours were taken for determination of concentration of thiobarbituric acid reactive substances (TBARS). In patients goats before the application of iron TBARS values were equivalent to the measured values in the control group before and after applying the iron (p bigger than 0.05). The values measured in patients goats find more were significantly higher (p smaller than 0.001) in the group of animals even after the application of iron and controls before and after application. The application of iron worsened the clinical condition of the animals with respiratory disease, evidencing a condition of toxicity reflected by oxidative stress. Therefore, one should not recommend to supplementation in goats with respiratory diseases.”
“Preserved human amniotic membrane either air dried or glycerol preserved has been used effectively to treat superficial and partial thickness wounds without leaving any obvious hypertrophic scar.
Initial cell adhesion of mouse osteoblast-like cells MC3T3-E1 was enhanced, and, marked progress of actin filaments was observed on TZP-CA compared to on TZP. After 3, 5 or 7 days, cell proliferation on TZP-CA was significantly higher than that on TZP. Alkaline phosphatase activity was slightly lower on TZP-CA than on TZP at 7 days, and no difference was observed at 14 or 21 days. At 28 days incubation, collagenous CH5424802 datasheet fibers with mineral precipitants accompanied by phosphorous and amino groups were observed. These results indicate that thin CA coating with molecular precursor
method offers promise as a means of enhancing cell response, particularly initial adhesion and proliferation of MC3T3-E1 cells.”
“Most cases of Type 2 diabetes are attributable to excess weight and physical inactivity. We investigated trends in mortality based on doctors certification
of diabetes and obesity.\n\nAnalysis of a national data set of all certified causes of death, i.e. underlying cause and contributing causes (mentions), in England 19952010.\n\nDiabetes exhibited divergent trends for mortality based on underlying cause and mentions. Underlying cause rates were 107.2 per million population [95 confidence interval (CI): 105.7108.6] in 1995, but only 68.9/10(6) BIX 01294 purchase (CI: 67.969.9) in 2010. Mortality rates for mentions of diabetes were 403.1/10(6) (CI: 400.4405.8) in 1995, increasing to 478.4/10(6) (CI: 475.7481.0) in 2010. Underlying cause mortality for obesity was 3.7/10(6) (CI: 3.24.1) in 1995 and 7.5 (CI: 7.08.0) in 2010. The corresponding rates for mentions of obesity were 13.2/10(6) (CI: 12.613.9) and 34.5/10(6) (CI: 33.635.4), respectively. 24.0 of death certificates with a mention of obesity also had diabetes recorded on the same certificate.\n\432 nMultiple-cause mortality statistics provide a more accurate picture than underlying cause of the total mortality burden attributed on death certificates to diabetes and obesity. Rates for both increased substantially: analysis by underlying cause alone would have missed this for diabetes.”
“Biosynthesis of hydroxybenzoates even at enzymatic level. is poorly understood.
In this report, effect of feeding of putative biosynthetic precursors and pathway-specific enzyme inhibitors of early phenylpropanoid pathway on p-hydroxybenzoic acid accumulation in chitosan-elicited hairy roots of Daucus carota was studied. Three selective metabolic inhibitors EPZ004777 in vivo of plant phenylpropanoid pathway, namely, aminooxyacetic acid (AOAA), piperonylic acid (PIP) and 3,4-methylenedioxycinnamic acid (MDCA), which are known to inhibit phenylalanine ammonia-lyase (PAL), cinnamate-4-hydroxylase (C4H) and 4-coumarate-CoA ligase (4CL) respectively, the three early enzymes of phenylpropanoid metabolism, were chosen with the anticipation that selective inhibition of these enzymes in vivo may provide information on the metabolic route to p-hydroxybenzoic acid formation. Supplementation of AOAA (0.2-1.0 mM) and PIP (0.2-1.
Conclusion: Children 123 living with smokers are at increased risk for emotional or behavioral problems,
and rates of such problems increase with increasing numbers of smokers in the household, even in the absence of maternal smoking.”
“Recent studies have identified paracrine and endocrine cells in the midgut of larval Drosophila melanogaster as well as midgut and hindgut receptors for multiple neuropeptides implicated in the control of fluid and ion balance. Although the effects of diuretic factors on fluid secretion by isolated Malpighian tubules of D. melanogaster have been examined extensively, relatively little is known about the effects of such factors on gut peristalsis or ion transport across the gut. We have measured the effects of diuretic hormone 31 (DH31), drosokinin and allatostatin A (AST-A) on both K+ transport and muscle contraction Adriamycin manufacturer frequency in the isolated gut of larval D. melanogaster. K+ absorption across the gut was measured using K+-selective microelectrodes and the scanning ion-selective electrode technique. Allatostatin A (AST-A; 1 M) increased K+ absorption across the anterior midgut but reduced K+ absorption across the copper cells and large flat cells of the middle midgut. AST-A strongly inhibited gut contractions in the anterior midgut but had no effect on contractions
of the pyloric sphincter induced by proctolin. DH31 (1 M) increased the contraction frequency in the anterior midgut, but had no effect on K+ flux across the anterior, middle, or posterior midgut or across the ileum. Drosokinin (1 M) did not affect either contraction frequency or K+ flux across any selleck of the gut regions examined. Possible functions of DZNeP in vitro AST-A, DH31, and drosokinin in regulating midgut physiology are discussed.”
“Object. Although angioplasty and stent placement for vertebral artery (VA)-origin stenosis have been performed using endovascular techniques, a high likelihood of restenosis has been observed in the long term. Therefore, the authors assessed the long-term clinical and angiographic
outcomes in patients after VA-subclavian artery (SA) transposition.\n\nMethods. Thirty-six patients (31 men, 5 women; mean age 64.3 years, range 46-76 years) Underwent clinical evaluation (modified Rankin Scale [mRS]) and cervical angiographic evaluation preoperatively and within I month of and 6 months after VA-SA transposition undertaken to treat symptomatic stenosis of VA origin.\n\nResults. Postoperative neurological deficits due to intraoperative brain ischemia did not occur, and MR imaging demonstrated no new postoperative ischemic lesions in any of the patients. One patient died of acute myocardial infarction 2 months after Surgery and another developed a left thalamic hemorrhage (mRS score of 5) at 42 months postsurgery. None of the remaining 34 patients experienced further ischemic events, and the mRS score in all of these patients remained unchanged during a mean follow-up period of 54 months.
The choice of tracheostomy or cricothyrotomy to establish an airway depends on the patients’ clinical condition, for instance; cricothyrotomy should be preferred in patients with cervicothoracal injury or
dislocation who suffer from respiratory dysfunction. Furthermore; if a patient is under risk of hypoxia or anoxia due to a difficult airway, cricothyrotomy should be preferred rather than tracheostomy.”
“The study describes the effects of growth light conditions on growth and morphology of stokplants and Selonsertib rooting ability of cuttings for mass clonal propagation of jackfruit (Artocarpus heterophyllus Lam.) without application of rooting hormone. Forty five days-old containerized stockplants were placed under three different levels of light: full
sun (Red to far red ratio 1.25), partial shade (R: FR 1; 60% of full sun) and deep shade (R: FR 0.4; 3% of full sun) for 45 days. Half of the stockplants growing in partial shade or deep shade were transferred to full sun for another 15 days and growth and morphology of shoots and rooting ability of cuttings were investigated. Growth and morphology of shoots and rooting ability of cuttings was significantly affected by the growth light conditions of stockplants. Internode number was significantly fewer, but internode length, leaf area and specific leaf area was higher in deep shade and deep shade to full sun regime. Leaf weight per unit area was decreased gradually, when sun-grown stockplants were transferred find more to deep shade or partial shade and regained on returning them from the shade to full sun. The highest rooting percentage (100%), maximum number of root (6.3) and root dry Selleck AC220 weight (62 mg) per cutting was obtained from the cuttings of deep shade to full sun 3 regime followed by deep shade and the lowest was in full sun regime without application of any rooting hormone. (C) 2011 Friends Science Publishers”
“Systems externally reinforced by bonded fibre reinforced polymers (FRP) are widely used in the retrofitting and strengthening of reinforced concrete (RC) structures. A drawback of the usage of this technique
lies on the uncertainty of the long term behaviour of those reinforcements. Researchers have paid heed to this aspect and a number of tests and alternative techniques have recently been described. An experimental programme developed to supplement work of the authors recently published and which focused on specimens not submitted to aggressive environments is described. The specimens used have the same geometry as in the previous paper, but they were exposed to salt fog cycles and dry/wet cycles with salt water for periods of 3000 h, 5000 h and 10,000 h. The interface of the glass fiber polymeric composite (GFRP)-to-concrete was characterized after the systems underwent such aggressive conditions. The GFRP wrap comprised of two layers and wet lay-up technique was used on its preparation and application.