Kanazawa-shi, Japan

Kanazawa Gakuin University

www.kanazawa-gu.ac.jp
Kanazawa-shi, Japan

Kanazawa Gakuin University is a private university in Kanazawa, Ishikawa, Japan. The school opened initially as a women's college in 1987. It became coeducational in 1995. Wikipedia.

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Ishikawa A.,Kanazawa Gakuin University | Fujimoto S.,Kanazawa Gakuin University | Mizuno T.,Graduate University for Advanced Studies
Proceedings - 2016 IEEE International Conference on Big Data, Big Data 2016 | Year: 2016

By summing up the Point of Sale (POS) data of approximately 2,000 American supermarket stores from 2001 to 2012 for every company, we compared the growth rate of the POS sales data with each company's actual sales. We confirmed that the growth rate in quarterly sales for companies whose anchor products are daily necessities in the United States were strongly related to the POS data's growth rate, thus demonstrating that nowcast (real-time observation of company sales) is possible, at least for this type of business enterprise. © 2016 IEEE.


Takizawa M.,Tohoku University | Takizawa M.,Taiheiyo Cement Corporation | Takayanagi H.,Tohoku University | Yamamoto K.,Nagoya University | And 3 more authors.
Geochimica et Cosmochimica Acta | Year: 2017

The δ13C and δ18O values of fossil brachiopod shells have been widely used as paleoenvironmental proxies. In this study, we investigated intrashell and intraspecific variations in the isotopic and minor element concentrations of well-preserved shells of the brachiopod Kikaithyris hanzawai (Yabe) from the last glacial period (∼20 ka [Last Glacial Maximum; LGM] and ∼70 ka [Marine Isotope Stage 4; MIS4]), collected in the Central Ryukyus, and used these data to estimate the paleoceanographic conditions (seawater temperature, concentration of dissolved inorganic carbon [DIC], and δ13C value of DIC [δ13CDIC]). The δ13C and δ18O profiles along the maximum growth axis, obtained from the inner shell surface, show three distinct intervals, corresponding to changes in shell morphology. These results suggest that the bulk isotopic compositions of brachiopods with complex shell morphologies are unsuitable for paleoenvironmental reconstructions. Nevertheless, there exists a specific shell portion with relatively small intrashell and intraspecific variations. The past seawater temperatures derived from the δ18O values of this portion are consistent with the alkenone- and planktic foraminiferal Mg/Ca-based past seawater temperatures reported in previous studies. The past δ13CDIC values estimated from the δ13C values of the specific shell portion are within the range of the past δ13CDIC values calculated from known atmospheric and oceanographic parameters. The past DIC concentrations reconstructed from the brachiopod-based δ13CDIC values are lower than the present concentrations in the East China Sea, which can be explained by low partial pressure of CO2 during the last glacial period. These results indicate that the δ13C and δ18O values obtained from K. hanzawai shells are potential paleoenvironmental indicators. The intrashell and intraspecific variations in the K. hanzawai shells are different for each minor element. Some anomalously high Mn and Fe concentrations in the shells are probably caused by metabolic factor(s), not by meteoric diagenesis. This suggests that the minor element concentrations are useful but not perfect for distinguishing diagenetically altered and unaltered portions of the shells of K. hanzawai in the studied succession. © 2017 Elsevier Ltd


PubMed | Morinomiya University of Medical Sciences, Health Science University, Hokkaido Bunkyo University, Kanazawa Gakuin University and Japan Health Care College
Type: | Journal: Journal of physiological anthropology | Year: 2016

In this study, a cast brace was used to immobilize the knee, hip, and trunk, and relations between the event-related brain potential (ERP) and postural muscle activity were investigated while standing on an oscillating table.Twelve healthy young adults maintained a standing posture for 1 min per trial while oscillating in the anteroposterior direction at 0.5 Hz with a 2.5-cm amplitude. Trials were performed without and with the cast brace (no-fixation and fixation condition, respectively) until the subject had adapted to the floor oscillation. The ERP from the Cz electrode, postural muscle activity, and joint movement range were analyzed for the first and last two trials (before and after adaptation, respectively).Movement range of the hip and knee was lower in the fixation condition than in the no-fixation condition, and postural control was achieved by pivoting at the ankle. Peak muscle activity was largest in the gastrocnemius (GcM) in both conditions. GcM activity significantly increased after fixation and then decreased with adaptation. The time of peak erector spinae (ES) activity in the fixation condition was significantly earlier than in the no-fixation condition and was not significantly different from the time of the anterior reversal and peak of triceps surae activity. The negative ERP peaked approximately 80 ms after the anterior reversal. Significant correlations between the time of the peak negative ERP and the peak GcM, soleus, and ES activity were observed only after the adaptation, and were greater in the fixation condition (r=0.83, 0.84, and 0.83, respectively) than in the no-fixation condition (r=0.62, 0.73, and 0.51, respectively).All joints of the leg and trunk except for the ankle were rigidly fixed by the cast brace, and the phase differences between body segments were very small in the fixation condition. High correlations between the time of the peak negative ERP and the peak GcM, soleus, and ES activity after adaptation in the fixation condition suggest that attention would be more focused on anticipatory processing of muscle sensory information from the triceps surae and/or ES, particularly GcM, which had the greatest activation.


PubMed | Health Science University, Japan Health Care College, Hokkaido Bunkyo University, Kanazawa Gakuin University and Kanazawa University
Type: Journal Article | Journal: Journal of physiological anthropology | Year: 2016

Adaptation changes in postural muscle activity and anticipatory attention were investigated with the ankle joint fixed to change postural control strategies during transient floor translation.For 15 healthy young adults, 40 transient floor translations (S2) in the anterior direction were applied 2s after an auditory warning signal (S1), under conditions with or without fixation of the ankle. Activity of the frontal postural muscles (tibialis anterior (TA), rectus femoris (RF), rectus abdominis) and contingent negative variation (CNV, brain potential) were analyzed for 20 trials each of the early and latter halves under each fixation condition.With fixation, peak amplitude of muscle activity after S2 was significantly decreased in TA and increased in RF. These muscles showed marked adaptive decreases. The early component of CNV reduced with adaptation, particularly under fixation condition. Only in RF, background activity increased just before S2, with adaptation under fixation. A significant correlation was found between timings of CNV peak and RF activation just before S2 only after adaptation under fixation.These results suggest that the main activation muscle changes from TA to RF with fixation. Under such condition, attention would be focused on the knee with adaptation, and the need for heightening attention in the early stage may have declined. Correspondingly, the timing to heighten stiffness of the RF became later, and attention would have been paid to RF activation just before S2.


Takayanagi H.,Nagoya University | Asami R.,University of Ryukyus | Abe O.,Nagoya University | Miyajima T.,University of Tokyo | And 4 more authors.
Geochimica et Cosmochimica Acta | Year: 2013

This study presents intraspecific variations in carbon-isotope (δ13C) and oxygen-isotope (δ18O) compositions of nine specimens of a subtropical brachiopod, Basiliola lucida, collected west of Okinawa-jima, Ryukyu Islands, southwestern Japan. The δ13C values of samples collected along the maximum growth axis (ontogenetic samples) from two modern and seven older (pre-1945 cal AD) shells show no seasonal changes. The modern shells, which were collected from comparable depths, have similar δ13C values that fall within the range of calcite precipitated in isotopic equilibrium with ambient seawater (equilibrium calcite) (δ13CEC values), and their mean δ13C values are ~1.1-1.6‰ less than those from the older shells. This decrease in δ13C values is similar in magnitude to the decreases in atmospheric CO2 and the oceanic dissolved inorganic carbon at the sea surface in recent years (13C Suess effect), suggesting that the effect can even be detected at water depths of 200-300m in the subtropical northwestern Pacific Ocean. The δ18O values fluctuate within a narrow range (0.26-0.41‰) with no seasonal changes, and they exhibit small (0.14-0.51‰) offsets from those of equilibrium calcite (δ18OEC values). A statistically significant negative linear relationship is established between seawater temperature and mean δ18O values of the nine shells, but the slope (-0.31‰/°C) is steeper than those of equilibrium calcite (-0.23‰/°C) and other calcareous organisms (-0.15‰ to ?0.26‰/°C). The cross-plots of the δ13C and δ18O values suggest that the degree of the vital effect varies among individuals in this species. The δ13C and δ18O values of B. lucida are potentially useful for reconstructing the δ13C and δ18O evolution of ancient oceans, because both values show small intraspecific variations, the former is identical to the δ13CEC values, and the latter shows small within-shell variations and small, nearly constant offsets from the δ18OEC values. © 2013 Elsevier Ltd.


Tomita J.,Kanazawa University | Satake H.,University of Toyama | Fukuyama T.,Kanazawa University | Sasaki K.,Kanazawa Gakuin University | And 2 more authors.
Journal of Environmental Radioactivity | Year: 2010

Radium isotopes in 23 Na-Cl type groundwater sampled mainly from deep wells in Niigata Prefecture, which is the site of the largest oil- and gas-fields in Japan, were measured along with U isotopes, chemical components and hydrogen and oxygen isotope ratios to elucidate the distribution and behavior of Ra in a brackish environment underground. Also analyzed were U and Th isotopes in 38 rock samples collected from outcrops at 17 locations. Ra-226 concentrations (8.86-1637mBqkg-1) of groundwater samples roughly correlated with total dissolved solid (TDS) concentrations and other alkaline earth contents. Their 228Ra/226Ra activity ratios (0.32-5.2) were similar to or higher than the 232Th/238U activity ratios (0.6-1.7) in the rocks. The most likely transport mechanism of Ra isotopes into groundwater was due to their α-recoil from the solid phase, probably from the water-rock interface where Th isotopes had accumulated, and adsorption/desorption reaction based on the increase in 226Ra contents with TDS. © 2009 Elsevier Ltd.


Kon M.,Hirosaki University | Kuwano H.,Kanazawa Gakuin University
Fuzzy Sets and Systems | Year: 2012

In the present paper, the quasiconcavity of membership functions is generalized based on conjunctive aggregation functions, and the properties of the generalized quasiconcavity are investigated. Fuzzy multicriteria and scalar programming problems are then considered, and the properties of Pareto optimal solutions and compromise solutions as well as their relationships are derived. Finally, we discuss the application of the obtained results to facility location problems. © 2011 Elsevier B.V.


Ishikawa A.,Kanazawa Gakuin University | Fujimoto S.,Kanazawa Gakuin University | Tomoyose M.,University of Ryukyus
Journal of Physics: Conference Series | Year: 2010

Using numerical simulations, the authors exhibit the difference between two types of the growth rate distributions, the one of which is observed in both positive and negative data such as profits, and the other of which is in non-negative data such as sales. In the simulation, firstly the Langevin equation generates both positive and negative variables, the growth rate distributions of which are linear functions of the logarithmic growth rate. By superposing the variables not to be negative, we find that the growth rate distributions of the non-negative variables have wider tails than line shape on a log-log scale. At the same time, two types of Non-Gibrat's Laws in the middle scale range are also confirmed as observed in real economic data. © 2010 IOP Publishing Ltd.


Ishikawa A.,Kanazawa Gakuin University | Fujimoto S.,Kanazawa Gakuin University | Mizuno T.,Hitotsubashi University
Physica A: Statistical Mechanics and its Applications | Year: 2011

In this study, the authors examine exhaustive business data on Japanese firms, which cover nearly all companies in the mid- and large-scale ranges in terms of firm size, to reach several key findings on profits/sales distribution and business growth trends. Here, profits denote net profits. First, detailed balance is observed not only in profits data but also in sales data. Furthermore, the growth-rate distribution of sales has wider tails than the linear growth-rate distribution of profits in loglog scale. On the one hand, in the mid-scale range of profits, the probability of positive growth decreases and the probability of negative growth increases symmetrically as the initial value increases. This is called Non-Gibrat's First Property. On the other hand, in the mid-scale range of sales, the probability of positive growth decreases as the initial value increases, while the probability of negative growth hardly changes. This is called Non-Gibrat's Second Property. Under detailed balance, Non-Gibrat's First and Second Properties are analytically derived from the linear and quadratic growth-rate distributions in loglog scale, respectively. In both cases, the log-normal distribution is inferred from Non-Gibrat's Properties and detailed balance. These analytic results are verified by empirical data. Consequently, this clarifies the notion that the difference in shapes between growth-rate distributions of sales and profits is closely related to the difference between the two Non-Gibrat's Properties in the mid-scale range. © 2011 Elsevier B.V. All rights reserved.


Shi G.,Kanazawa Gakuin University | Shiichiro I.,Kanazawa Gakuin University
Procedia Engineering | Year: 2012

As the concept of "safety culture," however, contains abstract elements, it is difficult to find a way to establish it in a specific manner in an organization, resulting in the current failure of its effective development. The result of developing a specific method for evaluating safety culture (SCAT: Safety Culture Assessment Tool) from the perspective of safety management in industrial organizations is reported. In addition, a comprehensive program for the continuous assessment and improvement of a safety culture (PDCA cycle) based on the use of SCAT, as a strategy for developing a safety culture, is examined and proposed. For contribution to further studies, reflections were also given on problems with activities for improving and entrenching a sound safety culture in an organization. © 2012 Published by Elsevier Ltd.

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