30 research outputs found
Current Status and Issues Relating to the Teaching of Subjects in the Special Needs School for Students with Intellectual Disabilities. : An Interview Survey
Decadal–centennial-scale solar-linked climate variations and millennial-scale internal oscillations during the Early Cretaceous
Understanding climate variability and stability under extremely warm ‘greenhouse’ conditions in the past is essential for future climate predictions. However, information on millennial-scale (and shorter) climate variability during such periods is scarce, owing to a lack of suitable high-resolution, deep-time archives. Here we present a continuous record of decadal- to orbital-scale continental climate variability from annually laminated lacustrine deposits formed during the late Early Cretaceous (123–120 Ma: late Barremian–early Aptian) in southeastern Mongolia. Inter-annual changes in lake algal productivity for a 1091-year interval reveal a pronounced solar influence on decadal- to centennial-scale climatic variations (including the ~ 11-year Schwabe cycle). Decadally-resolved Ca/Ti ratios (proxy for evaporation/precipitation changes) for a ~ 355-kyr long interval further indicate millennial-scale (~ 1000–2000-yr) extreme drought events in inner-continental areas of mid-latitude palaeo-Asia during the Cretaceous. Millennial-scale oscillations in Ca/Ti ratio show distinct amplitude modulation (AM) induced by the precession, obliquity and short eccentricity cycles. Similar millennial-scale AM by Milankovitch cycle band was also previously observed in the abrupt climatic oscillations (known as Dansgaard–Oeschger events) in the ‘intermediate glacial’ state of the late Pleistocene, and in their potential analogues in the Jurassic ‘greenhouse’. Our findings indicate that external solar activity forcing was effective on decadal–centennial timescales, whilst the millennial-scale variations were likely amplified by internal process such as changes in deep-water formation strength, even during the Cretaceous ‘greenhouse’ period
Study on Water Science
In this study, we intended to clarify the effect of various treatments such as magnetic and ultraviolet light irradiation on acidic electrolyzed aqueous solutions and alkali halide aqueous solutions. The results indicated that the available chloride concentration of acidic electrolyzed aqueous solution was decreased by these treatments. It was proved that hydroxyl radicals and bound water varied by these treatments in the alkali halide aqueous solution. It was proved that the most effective treatment in aqueous solutions relates to the salt concentration in both the acidic electrolyzed aqueous solution and the alkali halide aqueous solution
A comparative assessment of one\u27s own age from facial images of others: Two case studies for the Americans and the Japanese
We have proposed a method for estimating the subjective age of a person; that is, a method that yields a person\u27s age on the basis of estimations made by that person about the age of other people by observing their facial images. Thus far, experiments have shown that Japanese people tend to underestimate their subjective age. In this study, we focus on the socio-psychological effects that may influence the underestimation of subjective age. We conducted an international comparative study. In this study, experiments were performed in which American and Japanese participants viewed American facial images; in addition, the American participants also viewed Japanese facial images. Through these experiments, it was confirmed that the subjective age generally tended toward the negative direction despite differences in the nationalities and cultures of the Japanese and American participants and their facial images. Moreover, it was found that nationality and culture may have some effects on the estimation; for example, American males did not exhibit the tendency to underestimate the age, unlike Japanese male. When estimating facial images of different nationalities, the variance generally tended to be larger, although the average was similar. This study suggests that the underestimation of age occurs despite differences in Japanese and American societies and cultures; however, the tendency of underestimation of age is not related to facial images but to social and cultural factors that influence the participants
Predicting the future direction of cell movement with convolutional neural networks.
Image-based deep learning systems, such as convolutional neural networks (CNNs), have recently been applied to cell classification, producing impressive results; however, application of CNNs has been confined to classification of the current cell state from the image. Here, we focused on cell movement where current and/or past cell shape can influence the future cell movement. We demonstrate that CNNs prospectively predicted the future direction of cell movement with high accuracy from a single image patch of a cell at a certain time. Furthermore, by visualizing the image features that were learned by the CNNs, we could identify morphological features, e.g., the protrusions and trailing edge that have been experimentally reported to determine the direction of cell movement. Our results indicate that CNNs have the potential to predict the future direction of cell movement from current cell shape, and can be used to automatically identify those morphological features that influence future cell movement
Deep Learning for Non-Invasive Determination of the Differentiation Status of Human Neuronal Cells by Using Phase-Contrast Photomicrographs
Regenerative medicine using neural stem cells (NSCs), which self-renew and have pluripotency, has recently attracted a lot of interest. Much research has focused on the transplantation of differentiated NSCs to damaged tissues for the treatment of various neurodegenerative diseases and spinal cord injuries. However, current approaches for distinguishing differentiated from non-differentiated NSCs at the single-cell level have low reproducibility or are invasive to the cells. Here, we developed a fully automated, non-invasive convolutional neural network-based model to determine the differentiation status of human NSCs at the single-cell level from phase-contrast photomicrographs; after training, our model showed an accuracy of identification greater than 94%. To understand how our model distinguished between differentiated and non-differentiated NSCs, we evaluated the informative features it learned for the two cell types and found that it had learned several biologically relevant features related to NSC shape during differentiation. We also used our model to examine the differentiation of NSCs over time; the findings confirmed our model’s ability to distinguish between non-differentiated and differentiated NSCs. Thus, our model was able to non-invasively and quantitatively identify differentiated NSCs with high accuracy and reproducibility, and, therefore, could be an ideal means of identifying differentiated NSCs in the clinic
Angiotensin II Increases Expression of IP-10 and the Renin-Angiotensin System in Endothelial Cells
The Evolution of Sex-Independent Transmission Ratio Distortion Involving Multiple Allelic Interactions at a Single Locus in Rice
Transmission ratio distortion (TRD) is frequently observed in inter- and intraspecific hybrids of plants, leading to a violation of Mendelian inheritance. Sex-independent TRD (siTRD) was detected in a hybrid between Asian cultivated rice and its wild ancestor. Here we examined how siTRD caused by an allelic interaction at a specific locus arose in Asian rice species. The siTRD is controlled by the S6 locus via a mechanism in which the S6 allele acts as a gamete eliminator, and both the male and female gametes possessing the opposite allele (\documentclass[10pt]{article}
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\begin{equation*}S_{6}^{{\mathrm{a}}}\end{equation*}\end{document}) are aborted only in heterozygotes (\documentclass[10pt]{article}
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\begin{equation*}S_{6}/S_{6}^{{\mathrm{a}}}\end{equation*}\end{document}). Fine mapping revealed that the S6 locus is located near the centromere of chromosome 6. Testcross experiments using near-isogenic lines (NILs) carrying either the S6 or \documentclass[10pt]{article}
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\begin{equation*}S_{6}^{{\mathrm{a}}}\end{equation*}\end{document} alleles revealed that Asian rice strains frequently harbor an additional allele (\documentclass[10pt]{article}
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\begin{equation*}S_{6}^{{\mathrm{n}}}\end{equation*}\end{document}) the presence of which, in heterozygotic states (\documentclass[10pt]{article}
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\begin{equation*}S_{6}/S_{6}^{{\mathrm{n}}}\end{equation*}\end{document} and \documentclass[10pt]{article}
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\begin{equation*}S_{6}^{{\mathrm{a}}}/S_{6}^{{\mathrm{n}}}\end{equation*}\end{document}), does not result in siTRD. A prominent reduction in the nucleotide diversity of S6 or \documentclass[10pt]{article}
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\begin{equation*}S_{6}^{{\mathrm{a}}}\end{equation*}\end{document} carriers relative to that of \documentclass[10pt]{article}
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\begin{equation*}S_{6}^{{\mathrm{n}}}\end{equation*}\end{document} carriers was detected in the chromosomal region. These results suggest that the two incompatible alleles (S6 and \documentclass[10pt]{article}
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\begin{equation*}S_{6}^{{\mathrm{a}}}\end{equation*}\end{document}) arose independently from \documentclass[10pt]{article}
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\begin{equation*}S_{6}^{{\mathrm{n}}}\end{equation*}\end{document} and established genetically discontinuous relationships between limited constituents of the Asian rice population
A questionnaire survey of pharmacists regarding the clinical practice guidelines for the appropriate use of granulocyte-colony stimulating factors
Abstract Background Clinical practice guidelines should be user-friendly and confirming their penetration rate and compliance are critical. Methods We conducted a nationwide web-based questionnaire survey among pharmacists regarding the 2013 guidelines for the appropriate use of granulocyte-colony stimulating factors (G-CSFs) (version 2, published by the Japan Society of Clinical Oncology [JSCO]) between August 24 and September 6, 2015. Results A total of 301 pharmacists responded; 96.0% belonged to hospitals and were board-certified pharmacists in oncology pharmacy (n = 133) and palliative pharmacy (n = 78). In addition, 61.5% of respondents (n = 185) worked for designated cancer care hospitals. The observation that 75.7% of respondents knew that the JSCO guidelines are available on the internet indicated that several pharmacists used this guideline. A high degree of usability by pharmacists was also demonstrated, as 98.0% and 51.5% of respondents, respectively, agreed with the statements “it is useful for the work of pharmacists” and “it is referred to in the actual work of pharmacists”. However, more than half of the respondents (58.4%) agreed with the phrase “there are differences from the actual work of pharmacists”. Conclusions Their responses indicated that the respondents used the G-CSF guidelines and viewed them positively; however, the observation that about half of the respondents reported feeling that the guidelines do not match their current practice requires additional follow-up in future studies. The use of these guidelines should be routinely assessed in order to introduce novel cancer chemotherapy regimens and long-acting G-CSF in clinical practice