63 research outputs found
The Impact Grit and Achievement Goal Orientation have on Athletic Training Students\u27 Persistence
Purpose: Athletic training education continues to evolve thereby increasing the importance of student retention. Understanding student motivation through achievement goal orientation and grit scores may help support student’s persistence in an athletic training program. The purpose was to determine if a relationship exists between achievement goal orientation and grit to help provide educators a better understanding of their students’ reasons for persisting to help improve retention. Methods: An achievement goal orientation survey and grit scale were administered, and quantitative data was analyzed statistically from Commission on Accreditation of Athletic Training Education- accredited programs in good standing for the 2018-2019 academic year. Results: A total of 520 professional athletic training students participated. There was a significant main effect (F(1,3)=690.0, pConclusions: Athletic training students have similar grit scores across all cohorts and classify higher with mastery goal orientation compared to performance-approach, performance-avoidant, and work-avoidant orientations. Educators should understand students’ motivation to provide support and challenging tasks for their passion and perseverance for athletic training. Key Words: grit, mastery, performance-approach, performance-avoidant, work-avoidant
The importance of clonal selection of grapevine and the role of selected clones in production of healthy propagating stocks
Genetical alterations and phytosanitary status promote the variability and modify the appearance of vine. Old vine varieties in oldvineyards are highly variable and well adapted to selection. Clonal selektion is based on a visual performance: valuable individuals (clones)are picked out according to visible symptoms or characters. The genetical stability of clones is proved by testing the vegetatively propagatedprogenies on the basis of morphological and molekular (SSR, AFLP, SMPL, RAPD) markes.Authors take great care of the visual phytosanitary selection as part of the clonal selection being the preliminary step to develop pathogen-freepropagation stocks.In Serbia (Vojvodina) the selection breeding has been carried on for several decades resulted in comparative clone trials with home andimported clones of Welsch Riesling, Chardonnay, Pinot gris, White Riesling. Among the clones of home selection SK.54 Welsch Rieslingclone is the most valuable. Its clearing from pathogene is being carried on in an interregional IPA programme (HUSRB/0901/214/123) inKecskemét.In Kecskemét, the centre of the Hungarian Danube vine region 5 vine clones have been registered (Cegléd szépe K.73, Irsai Olivér K.11,Kövidinka K.8, Hárslevelû K.9, Pannónia kincse K.56). Besides them 18 virus-tested clones have also been qualified.Works aiming at theircomplete exemption are going on in order to obtain clones free of propagation wood-borne diseases
The importance of clonal selection of grapevine and the role of selected clones in production of healthy propagating stocks
Genetical alterations and phytosanitary status promote the variability and modify the appearance of vine. Old vine varieties in old vineyards are highly variable and well adapted to selection. Clonal selektion is based on a visual performance: valuable individuals (clones) are picked out according to visible symptoms or characters. The genetical stability of clones is proved by testing the vegetatively propagated progenies on the basis of morphological and molekular (SSR, AFLP, SMPL, RAPD) markes. Authors take great care of the visual phytosanitary selection as part of the clonal selection being the oreliminary step to develop pathogen-free propagation stocks. In Serbia (Vojvodina) the selection breeding has been carried on for several decades resulted in comparative clone trials with home and imported clones of Welsch Riesling, Chardonnay, Pinot gris, White Riesling. Among the clones of home selection SK.54 Welsch Riesling clone is the most valuable. Its clearing from pathogene is being carried on in an interregional IPA programme (HUSRB/0901/214/123) in Kecskemét. In Kecskemét, the centre of the Hungarian Danube vine region 5 vine clones have been registered (Cegléd szépe K.73, Irsai Olivér K.11, Kövidinka K.8, Hárslevelû K.9, Pannónia kincse K.56). Besides them 18 virus-tested clones have also been qualified.Works aiming at their complete exemption are going on in order to obtain clones free of propagation wood-borne diseases
Batch and fed-batch growth of Pichia pastoris under increased air pressure
Pichia pastoris CBS 2612 behavior under air pressures of 1 bar, 3 bar and 5 bar in culture media of glycerol (pure and crude) and methanol was studied. Generally, the increase in oxygen transfer rate due to the increase of total pressure improved cellular growth for all carbon sources and for batch and fed-batch processes with different feeding rate strategies. In batch cultures, 1.4-fold, 1.2-fold, and 1.5-fold improvement in biomass production was obtained with the increase of air pressure up to 5 bar, using methanol, pure glycerol, and crude glycerol, respectively. The raise of air pressure to 5 bar using exponential feeding rate leaded to 1.4-fold improvement in biomass yield per glycerol mass consumed, for crude and pure glycerol.
The current low cost of crude glycerol from the biodiesel production together with the present results shows the possibility of improving cell mass production of P. pastoris using increased air pressure.The authors acknowledge the financial support provided by "Fundacao para a Ciencia e Tecnologia" (Grant SFRH/BD/47371/2008)
De Novo Mutations in FOXJ1 Result in a Motile Ciliopathy with Hydrocephalus and Randomization of Left/Right Body Asymmetry
Hydrocephalus is one of the most prevalent form of developmental central nervous system (CNS) malformations. Cerebrospinal fluid (CSF) flow depends on both heartbeat and body movement. Furthermore, it has been shown that CSF flow within and across brain ventricles depends on cilia motility of the ependymal cells lining the brain ventricles, which play a crucial role to maintain patency of the narrow sites of CSF passage during brain formation in mice. Using whole-exome and whole-genome sequencing, we identified an autosomal-dominant cause of a distinct motile ciliopathy related to defective ciliogenesis of the ependymal cilia in six individuals. Heterozygous de novo mutations in FOXJ1, which encodes a well-known member of the forkhead transcription factors important for ciliogenesis of motile cilia, cause a motile ciliopathy that is characterized by hydrocephalus internus, chronic destructive airway disease, and randomization of left/right body asymmetry. Mutant respiratory epithelial cells are unable to generate a fluid flow and exhibit a reduced number of cilia per cell, as documented by high-speed video microscopy (HVMA), transmission electron microscopy (TEM), and immunofluorescence analysis (IF). TEM and IF demonstrate mislocalized basal bodies. In line with this finding, the focal adhesion protein PTK2 displays aberrant localization in the cytoplasm of the mutant respiratory epithelial cells
Synthesis, characterization, and catalysis of recyclable new piperazine-bridged Mo(VI) polymers [MoO 2
A LC-MS-MS method for determination of low doxazosin concentrations in plasma after oral administration to dogs
A rapid and sensitive reversed phase liquid chromatography-tandem mass spectrometry (LC-MS-MS) method is developed for the determination of doxazosin in canine plasma. The samples are prepared by precipitation of proteins using a mixture of methanol and acetonitrile, followed by freezing and evaporation of the organic solvent. The remaining dry residue is redissolved in mobile phase and analyzed by LC-MS-MS with positive electrospray ionization using the selected reactions monitoring mode. An XTerra MS C18 column, a mobile phase composed of acetonitrile and 2mM ammonium acetate with gradient elution, and a flow rate of 400 μL/min are employed. The elution times for prazosin (internal standard) and doxazosin are ~ 8 and 10 min, respectively. Calibration curves are linear in the 1-20 ng/mL concentration range. Limits of detection and quantification are 0.4 ng/mL and 1.2 ng/mL, respectively. Recovery is higher than 94%. Intra- and inter-day relative standard deviations are below 7% and 8%, respectively. The method is applied for the determination of doxazosin plasma levels following a single administration of doxazosin base and doxazosin mesylate tablets (2 mg dose) to dogs in the fed state. The results indicate possible superiority of the mesylate salt on the plasma input rates of doxazosin
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