6,487 research outputs found
Environmental factors that affect the Fukuda stepping test in normal participants
No full textBackground: The Fukuda stepping test is commonly used to assess peripheral vestibular function. It has, however, been suggested that its maximal sensitivity and specificity are 70 per cent and 50 per cent, respectively. This study was undertaken to evaluate environmental factors that may influence the reliability of this assessment and hence to ‘sharpen’ its use in a clinical setting.
Methods: Forty-four participants aged between 20 and 43 years were asked to perform the Fukuda stepping test in both a standard clinic room and a soundproofed room under the following conditions in a randomised order: on the floor versus on foam; with and without a sound-localising source; and with and without ear defenders.
Results: Significant differences in the extent of rotation were found when comparing the results obtained in several settings, including standing on the floor in a standard room versus a soundproofed room (p = 0.036), and standing on foam in a standard room versus a soundproofed room (p = 0.015).
Conclusion: Our results suggest that certain alterations to the test environment may improve the sensitivity of this clinical examination
Sophiodela japonica Fukuda & Ogawa & Hori 2019, comb. nov.
No full text<i>Sophiodela japonica</i> (Thunberg, 1781), comb. nov. <p>(Figs 7B, 12B)</p> <p> <i>Cicindela japonica</i> Thunberg, 1781: 25.</p> <p> <i>Cicindela chinensis japonica</i>: Fleutiaux, 1892:116.</p> <p> <i>Cicindela chinensis japonica konoi</i> Goto & Iga, 1950:14 [synonymy by Nakane 1976: 4].</p> <p> <i>Cicindela chinensis yakushimana</i> Nakane, 1963:3 [synonymy by Nakane 1976: 4].</p> <p> <i>Cicindela</i> (<i>Sophiodela</i>) <i>japonica</i>: Nakane 1955: 26.</p> <p> <i>Cicindela</i> (<i>Sophiodela</i>) <i>chinensis japonica</i>: Cassola & Nidek 1984:11.</p> <p> <i>Cicindela</i> (<i>Sophiodela</i>) <i>japonica</i>: Fukuda <i>et al</i>. 2015:271.</p> <p> <b>Specimens examined.</b> (N = 4) <b>[Japan]</b> 2♂♂ (EUMJ), Fruit Tree Research Center, Shimoidai, Matsuyama-shi, Ehime Pref., 2. X. 2018, R. Ogawa leg; 2♂♂ (EUMJ), ditto, 25. X. 2018, R. Ogawa leg.</p> <p> <i>Description.</i> Internal sac everted dorsally in lateral view. DA largest in the bladders: DLL the second largest: VA as large as B. VLR, BLR and VB not exist.</p> <p>VA short triangular everted dorso-apically. DA everted basally. B oval swollen ventrally, with well sclerotized spines, which are forming a narrow band. DLL swollen dorsally, covered numerously with well sclerotized spines, which are a forming band. Flagellum well short, curved and formed S shape. Medial tooth short, orthogonally curved right ventro-laterally.</p> <p> <i>Remarks</i>. This species shares the characteristics of the position of each bladder with <i>Sophiodela okinawana</i>, <i>S</i>. <i>ferriei</i>, and <i>S</i>. <i>c. chinensis</i>, but is distinguished from the three species by the following characteristics: B oval swollen ventrally; VA triangular everted dorso-apically; medial tooth orthogonally curved.</p>Published as part of <i>Fukuda, Yuki, Ogawa, Ryo & Hori, Michio, 2019, The reclassification of Sophiodela and other tiger beetles (Coleoptera, Cicindelidae) based on the structure of the everted internal sac of the male genitalia, pp. 271-308 in Zootaxa 4661 (2)</i> on page 284, DOI: 10.11646/zootaxa.4661.2.3, <a href="http://zenodo.org/record/3998528">http://zenodo.org/record/3998528</a>
Evaluating the upper-body strength and power from a single test: the ballistic puh-up.
No full textAbstract: Wang, R, Hoffman, JR, Sadres, E, Bartolomei, S, Muddle, TWD, Fukuda, DH, and Stout, JR. Evaluating upper-body strength and power from a single test: the ballistic push-up. J Strength Cond Res 31(5): 1338–1345, 2017—The purpose of this study was to examine the reliability of the ballistic push-up (BPU) exercise and to develop a prediction model for both maximal strength (1 repetition maximum [1RM]) in the bench press exercise and upper-body power. Sixty recreationally active men completed a 1RM bench press and 2 BPU assessments in 3 separate testing sessions. Peak and mean force, peak and mean rate of force development, net impulse, peak velocity, flight time, and peak and mean power were determined. Intraclass correlation coefficients were used to examine the reliability of the BPU. Stepwise linear regression was used to develop 1RM bench press and power prediction equations. Intraclass correlation coefficient's ranged from 0.849 to 0.971 for the BPU measurements. Multiple regression analysis provided the following 1RM bench press prediction equation: 1RM = 0.31 × Mean Force − 1.64 × Body Mass + 0.70 (R2 = 0.837, standard error of the estimate [SEE] = 11 kg); time-based power prediction equation: Peak Power = 11.0 × Body Mass + 2012.3 × Flight Time − 338.0 (R2 = 0.658, SEE = 150 W), Mean Power = 6.7 × Body Mass + 1004.4 × Flight Time − 224.6 (R2 = 0.664, SEE = 82 W); and velocity-based power prediction equation: Peak Power = 8.1 × Body Mass + 818.6 × Peak Velocity − 762.0 (R2 = 0.797, SEE = 115 W); Mean Power = 5.2 × Body Mass + 435.9 × Peak Velocity − 467.7 (R2 = 0.838, SEE = 57 W). The BPU is a reliable test for both upper-body strength and power. Results indicate that the mean force generated from the BPU can be used to predict 1RM bench press, whereas peak velocity and flight time measured during the BPU can be used to predict upper-body power. These findings support the potential use of the BPU as a valid method to evaluate upper-body strength and power
Mechanical forces regulate cardiomyocyte myofilament maturation via the VCL-SSH1-CFL axis
No full textUncropped image
The virtues of Fukuda laboratory of crystal growth
No full textAbstractThe author, dealing with crystal growth of II–VI, IV–VI and III–V compounds for more than 25 years, describes his impressions on the state of art of the basic research in the field of bulk growth of electronic materials in Japan, obtained during his stay from 1993 to 1994 as invited professor at the laboratory of Professor Tsuguo Fukuda at the Institute for Materials Research of Tohoku University in Sendai. He learned that the future generations of electronic and optical devices require original ideas and unconventional steps towards new bulk crystal growth technologies combined with a close teamwork between academic laboratories and industry
Landscape layer for resistance
No full textThis is raster file (base_cats_new3.asc) that was used to generate the environmental resistance surface with the ResistanceGA R package (Peterman, 2018) to evaluate models of environmental resistance to between-population movement of saltwater crocodiles Crocodylus porosus in the Northern Territory of Australia, represented by individual pairwise genetic distances among individuals. ResistanceGA models pairwise genetic distances in response to pairwise 'ecological distances' using linear mixed effects models with a maximum-likelihood population effects (MLPE) random effects structure (Clarke, Rothery, & Raybould, 2002), represented by individual ID in our models. We used Smouse and Peakall (1999) pairwise genetic distance as the response variable for this purpose.We estimated resistance surfaces that optimised random-walk commute distances (Etten, 2018) among the locations of sampled individuals as an explanatory variable in models of pairwise genetic distances among individuals. We ran a single surface optimisation in ResistanceGA (Peterman, 2018) to generate resistance values for the six environmental cover categories and stopped each model after 25 consecutive generations of no improvement in log-likelihood.Funding provided by: Australian National UniversityCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100000995Award Number: Funding provided by: Northern Territory Government*Crossref Funder Registry ID: Award Number: Funding provided by: National Geographic SocietyCrossref Funder Registry ID: http://dx.doi.org/10.13039/100006363Award Number: 51-16Funding provided by: Holsworth Wildlife Research EndowmentCrossref Funder Registry ID: http://dx.doi.org/10.13039/100008190Award Number: HWRE2016R2027NEWFunding provided by: IUCN-SSC Crocodile Specialist Group Student Research Assistance Scheme*Crossref Funder Registry ID: Award Number: 15/5Funding provided by: ACT Herpetological AssociationCrossref Funder Registry ID: http://dx.doi.org/10.13039/100008773Award Number:We created a categorical resistance surface layer using a 3 km x 3 km cell size raster (with 325 x 202 cells) with cells classified as sea, dry land, and the different types of habitats for C. porosus. We classified habitats into 'core breeding habitat', 'marginal breeding habitat', 'core non-breeding habitat' or 'marginal non-breeding habitat', following the definitions in the literature (Fukuda & Cuff, 2013; Fukuda et al., 2007; Webb, 1991). Breeding of C. porosus is highly seasonal during the wet season (November-April) and constrained to temporarily flooded, freshwater waterbodies which are not necessarily the most suitable habitat for saltwater crocodiles outside the breeding period (Campbell et al., 2013; Fukuda & Cuff, 2013; Fukuda et al., 2007; Webb, 1991). The core breeding habitats are the most favourable nesting areas represented by particular vegetation types as defined by Fukuda et al. (2007), while the marginal breeding habitats were identified by broader vegetation communities occasionally used for nesting (Fukuda & Cuff, 2013). The core non-breeding habitats are the most favourable waterbodies that tend to persist outside the breeding season (Fukuda & Cuff, 2013) and does not include known nesting areas. We defined the marginal non-breeding habitats by buffering the core non-breeding habitats by 3 km so that these habitats would include temporary waterbodies that may dry up during the dry season (May-October) or coastal areas with salinity levels similar to seawater (typically 35 parts per thousand). Although C. porosus is highly adapted to the saline environment (Cramp, Meyer, Sparks, & Franklin, 2008; Grigg, Taplin, Harlow, & Wright, 1980; Taplin, 1985), the species occurs in much higher density in brackish or fresh water (Fukuda et al., 2011; Webb & Manolis, 1989) and nesting females and embryos require access to freshwater (Webb, Manolis, Buckworth, & Sack, 1983; Webb, Messel, & Magnusson, 1977). Although some individuals access sea, especially when moving between the rivers (Campbell et al., 2010; Fukuda, Webb, Manolis, Lindner, & Banks, 2019), it is considered less favoured than brackish or freshwater habitats, and dry land is almost inaccessible to crocodiles as suggested by the previous tracking by satellites (Fukuda et al., 2019).
References
Campbell, H. A., Dwyer, R. G., Irwin, T. R., & Franklin, C. E. (2013). Home range utilisation and long-range movement of estuarine crocodiles during the breeding and nesting season. PLoS ONE, 8(5), e62127. doi: 10.1371/journal.pone.0062127
Campbell, H. A., Watts, M. E., Sullivan, S., Read, M. A., Choukroun, S., Irwin, S. R., & Franklin, C. E. (2010). Estuarine crocodiles ride surface currents to facilitate long-distance travel. Journal of Animal Ecology, 79(5), 955–964. doi: 10.1111/j.1365-2656.2010.01709.x
Clarke, R. T., Rothery, P., & Raybould, A. F. (2002). Confidence Limits for Regression Relationships between Distance Matrices: Estimating Gene Flow with Distance. Journal of Agricultural, Biological, and Environmental Statistics, 7(3), 361–372. Retrieved from JSTOR.
Cramp, R. L., Meyer, E. A., Sparks, N., & Franklin, C. E. (2008). Functional and morphological plasticity of crocodile (Crocodylus porosus) salt glands. The Journal of Experimental Biology, 211(Pt 9), 1482–1489. doi: 10.1242/jeb.015636
Etten, J. van. (2018). gdistance: Distances and Routes on Geographical Grids (Version 1.2-2). Retrieved from https://CRAN.R-project.org/package=gdistance
Fukuda, Y., & Cuff, N. (2013). Vegetation communities as nesting habitat for the saltwater crocodiles in the Northern Territory of Australia. Herpetological Conservation and Biology, 8(3), 641–651.
Fukuda, Y., Whitehead, P., & Boggs, G. (2007). Broad-scale environmental influences on the abundance of saltwater crocodiles (Crocodylus porosus) in Australia. Wildlife Research, 34(3), 167–176. https://doi.org/10.1071/WR06110
Fukuda, Yusuke, Webb, G., Manolis, C., Delaney, R., Letnic, M., Lindner, G., & Whitehead, P. (2011). Recovery of saltwater crocodiles following unregulated hunting in tidal rivers of the Northern Territory, Australia. Journal of Wildlife Management, 75(6), 1253–1266. doi: 10.1002/jwmg.191
Fukuda, Yusuke, Webb, G., Manolis, C., Lindner, G., & Banks, S. (2019). Translocation, genetic structure and homing ability confirm geographic barriers disrupt saltwater crocodile movement and dispersal. PLOS ONE, 14(8), e0205862. doi: 10.1371/journal.pone.0205862
Grigg, G. C., Taplin, L. E., Harlow, P., & Wright, J. (1980). Survival and growth of hatchling Crocodylus porosus in saltwater without access to fresh drinking water. Oecologia, 47(2), 264–266. doi: 10.1007/BF00346830
Peterman, W. E. (2018). ResistanceGA: An R package for the optimization of resistance surfaces using genetic algorithms. Methods in Ecology and Evolution, 9(6), 1638–1647. doi: 10.1111/2041-210X.12984
Taplin, L. E. (1985). Sodium and water budgets of the fasted estuarine crocodile,Crocodylus porosus, in sea water. Journal of Comparative Physiology B, 155(4), 501–513. doi: 10.1007/BF00684681
Webb, G. J. W. (1991). The influence of season on Australian crocodiles. In M. G. Ridpath, C. D. Haynes, & M. J. D. Williams (Eds.), Monsoonal Australia - Landscape, Ecology and Man in the Northern Lowlands (pp. 125–131). Rotterdam, Netherlands: A.A. Balkema.
Webb, G. J. W., Manolis, S. C., Buckworth, R., & Sack, G. C. (1983). An Examination of Crocodylus porosus nests in two northern Australian freshwater swamps, with an analysis of embryo mortality. Wildlife Research, 10(3), 571–605. doi: 10.1071/wr9830571
Webb, G. J. W., Messel, H., & Magnusson, W. E. (1977). The nesting biology of Crocodylus porosus in Arnhem Land, northern Australia. Copeia, 1977, 238–249.
Webb, Grahame, & Manolis, S. C. (1989). Crocodiles of Australia. Sydney, Australia: Reed Books
Electronic excitation spectra of molecules in solution calculated using the symmetry-adapted cluster-configuration interaction method in the polarizable continuum model with perturbative approach
No full textA perturbative approximation of the state specific polarizable continuum model (PCM) symmetry-adapted cluster-configuration interaction (SAC-CI) method is proposed for efficient calculations of the electronic excitations and absorption spectra of molecules in solutions. This first-order PCM SAC-CI method considers the solvent effects on the energies of excited states up to the first-order with using the zeroth-order wavefunctions. This method can avoid the costly iterative procedure of the self-consistent reaction field calculations. The first-order PCM SAC-CI calculations well reproduce the results obtained by the iterative method for various types of excitations of molecules in polar and nonpolar solvents. The first-order contribution is significant for the excitation energies. The results obtained by the zeroth-order PCM SAC-CI, which considers the fixed ground-state reaction field for the excited-state calculations, are deviated from the results by the iterative method about 0.1 eV, and the zeroth-order PCM SAC-CI cannot predict even the direction of solvent shifts in n-hexane for many cases. The first-order PCM SAC-CI is applied to studying the solvatochromisms of (2,2'-bipyridine)tetracarbonyltungsten [W(CO)(4)(bpy), bpy = 2,2'-bipyridine] and bis(pentacarbonyltungsten)pyrazine [(OC)(5)W(pyz)W(CO)(5), pyz = pyrazine]. The SAC-CI calculations reveal the detailed character of the excited states and the mechanisms of solvent shifts. The energies of metal to ligand charge transfer states are significantly sensitive to solvents. The first-order PCM SAC-CI well reproduces the observed absorption spectra of the tungsten carbonyl complexes in several solvents. (C) 2014 AIP Publishing LLC
Impact of Fatigue on Quality of Life in People With Parkinson’s Disease
No full textAbstract
Date Presented 3/30/2017
The symptom of fatigue was shown to be an effector for quality of life (QOL) in people with Parkinson’s disease (PD) independently from motor function–related PD symptoms. Intervention to improve specific aspects of fatigue is recommended to promote better QOL for people with PD.
Primary Author and Speaker: Kayoko Takahashi
Contributing Authors: Naoto Kamide, Michinari Fukuda</jats:p
Block versus weekly undulating periodized resistance training programs in women
No full textThe aim of this study was to compare the effects of resistance training using block periodization (BP) and weekly undulating (WUD) model on maximal strength and hypertrophy in recreationally strength trained women. Seventeen recreationally trained women were randomly assigned to either a BP group (n = 9; age = 24.7 ± 4.2 years; body mass = 62.1 ± 5.3 kg; height = 166.4 ± 6.0 cm) or a WUD group (n = 8; age = 23.2 ± 2.2 years; body mass = 59.8 ± 11.9 kg; height = 160.1 ± 4.1 cm). Participants of both groups trained 3 days a week for 10 weeks. The BP and WUD programs used the same exercises, and the difference between the 2 programs was in the distribution of the training volume within each training phase. Anthropometric measures and strength testing were performed before (PRE) and after 10 weeks (POST) of training. The results revealed that both BP and WUD groups made significant increases in strength and power, but improvements in lower-body strength were significantly (p = 0.039) greater in the WUD group (+27.7%) compared with the BP group (+15.2%). Both groups significantly increased arm muscle hypertrophy (p < 0.001), whereas improvements in thigh muscle size were significant in the WUD group only (+5.8%, p = 0.001). Results of this study indicate that the WUD model is more effective than the BP model for increasing maximal strength and muscle size in the lower body in women
Avaliação de resistência de cultivares de mandioca, a Xanthomonas campestris patovar manihotis.
No full text- …
