Working Mothers and Sons' Preferences Regarding Female Labor: Direct Evidence From Stated Preferences

The labor force participation rate of women in Japan has increased in recent decades. To shed light on the mechanism behind this increase, we focus on the explanation that Fernandez, Fogli and Olivetti (QJE (2004)) suggest. They claim that men who are raised by working mothers form a preference that is favorable toward working women and, consequently, they are more likely to have working wives. We test this hypothesis using the Japanese General Social Survey 2000-2002, which consists of repeated cross-sectional data sets. We fail to find a positive correlation between men's mothers' full-time work status and their wives' full-time work status. However, the lack of a correlation may be due to confounding factors. To take these potentially confounding factors into account, we directly examine whether the men raised by working and non-working mothers respond differently to the opinion survey's questions regarding the division of gender roles. The estimation results indicate that men raised by full-time working mothers are less likely to support the idea of the division of gender roles. Those men are also less likely to believe in the negative impact of a mother's working on her children's development. We confirm that the responses to the opinion survey are correlated with wives' labor force status

Similarities and differences between simultaneous and successive bilingual children: Acquisition of Japanese morphology

This paper compares the acquisition of Japanese morphology of two bilingual children who had different types of exposure to Japanese language in Australia: a simultaneous bilingual child who had exposure to both Japanese and English from birth, and a successive bilingual child who did not have regular exposure to Japanese until he was six years and three months old. The comparison is carried out using Processability Theory (PT) (Pienemann 1998, 2005) as a common framework, and the corpus for this study consists of the naturally spoken production of these two Australian children. The results show that both children went through the same developmental path in their acquisition of the Japanese morphological structures, indicating that the same processing mechanisms are at work for both types of language acquisition. However, the results indicate that there are some differences between the two children, including the rate of acquisition, and the kinds of verbal morphemes acquired. The results of this study add further insight to an ongoing debate in the field of bilingual language acquisition: whether simultaneous bilingual children develop their language like a first language or like a second language

Similarities and differences between simultaneous and successive bilingual children : acquisition of Japanese morphology

This paper compares the acquisition of Japanese morphology of two bilingual children who had different types of exposure to Japanese language in Australia: a simultaneous bilingual child who had exposure to both Japanese and English from birth, and a successive bilingual child who did not have regular exposure to Japanese until he was six years and three months old. The comparison is carried out using Processability Theory (PT) (Pienemann 1998, 2005) as a common framework, and the corpus for this study consists of the naturally spoken production of these two Australian children. The results show that both children went through the same developmental path in their acquisition of the Japanese morphological structures, indicating that the same processing mechanisms are at work for both types of language acquisition. However, the results indicate that there are some differences between the two children, including the rate of acquisition, and the kinds of verbal morphemes acquired. The results of this study add further insight to an ongoing debate in the field of bilingual language acquisition: whether simultaneous bilingual children develop their language like a first language or like a second language

音響効果と超音波を用いた全身麻酔前後における気道径の比較

Changes in airway dimensions can occur during general anaesthesia and surgery for a variety of reasons. This study explored factors associated with postoperative changes in airway dimensions. Patient airway volume was measured by acoustic reflectometory and neck muscle diameter by ultrasound echography in the pre- and post-anaesthetic periods in a total of 281 patients. Neck circumference was also assessed during these periods. A significant decrease in median (IQR [range]) total airway volume (from 63.8 (51.8–75.7 [14.7–103]) ml to 45.9 (33.5–57.2 [6.4–96.3]) ml, p < 0.0001), and a significant increase in muscle diameter (from 4.3 (3.3–5.6 [2.2–9.0]) mm to 5.8 (4.7–7.3 [2.8–1.3]) mm, p < 0.0001) and neck circumference (from 34.0 (32.5–37.0 [29.5–49.0]) cm to 35.0 (33.5–38.0 [30.5–50.5]) cm, p < 0.0001) were observed. It may be possible that changes in airway volume and neck circumference were influenced by surgical duration or peri-operative fluid management (ρ) = −0.31 (95% CI −0.24 to −0.01), p = 0.0301, −0.17 (−0.23 to −0.06), p = 0.0038, 0.23 (0.12–0.34), p < 0.0001, and 0.16 (0.05–0.27), p = 0.0062, respectively). The intra-oral space can significantly decrease and neck thickness increase after general anaesthesia, and might increase the risk of difficult laryngoscopy and intubation if airway management is required after extubation following general anaesthesia.博士（医学）・甲第626号・平成27年3月16日Copyright © 1999-2015 John Wiley & Sons, Inc. All Rights Reserved.© 2014 The Association of Anaesthetists of Great Britain and Irelan

子宮内膜症関連卵巣癌と隆起性病変を有する良性卵巣内膜症を鑑別する因子の検討

PURPOSE: Mural nodules and papillary projections can be seen in benign ovarian endometriosis (OE) and malignant transformation of OE (endometriosis-associated ovarian cancer [EAOC]), which can pose a challenging diagnostic dilemma to clinicians. We identify the preoperative imaging characteristics helpful to the differential diagnosis between benign OE with mural nodules and EAOC. MATERIALS AND METHODS: This was a retrospective study of 82 patients who were diagnosed pathologically to have OE with mural nodules (n = 42) and malignant transformations of these tumors (n = 40) at the Nara Medical University Hospital from January 2008 to January 2015. All patients were assessed with contrast-enhanced magnetic resonance imaging (MRI) before surgery. Patient demographics, and clinical and pathologic features were analyzed to detect the significant differences between the two groups. RESULTS: Histological examinations of resected OE tissue specimens revealed that a majority (78.6%) of the mural nodular lesions were retracted blood clots. We found that the patients with malignant mural nodules, when compared to those with benign nodules, were older, had larger cyst diameters and larger mural nodule sizes, and were more likely to exhibit a taller than wider lesion. They were also more likely to present with various signal intensities on T1-weighted images (T1WI), high-signal intensity on T2-weighted images (T2WI), a lower proportion of shading on T2WI, and were more likely to show an anterior location of the cyst. In the multivariate logistic regression analysis, "Height" (>1.5 cm) and "Height-Width ratio (HWR)" (>0.9) of mural nodules, maximum diameter of the cyst (>7.9 cm), and age at diagnosis (>43 years) were independent predictors to distinguish EAOC from OE with mural nodules. CONCLUSION: The "Height" and "HWR" of the mural nodules in the cyst may yield a novel potential diagnostic factor for differentiating EAOC from benign OE with mural nodules.博士（医学）・乙第1415号・平成30年3月15日©2017 Japanese Society for Magnetic Resonance in Medicine This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives International License. https://creativecommons.org/licenses/by-nc-nd/4.0/

The OVAL experiment: A new experiment to measure vacuum magnetic birefringence using high repetition pulsed magnets

A new experiment to measure vacuum magnetic birefringence (VMB), the OVAL experiment, is reported. We developed an original pulsed magnet that has a high repetition rate and applies the strongest magnetic field among VMB experiments. The vibration isolation design and feedback system enable the direct combination of the magnet with a Fabry-P\'erot cavity. To ensure the searching potential, a calibration measurement with dilute nitrogen gas and a prototype search for vacuum magnetic birefringence are performed. Based on the results, a strategy to observe vacuum magnetic birefringence is reported.Comment: 9 pages, 11 figure

ミスマッチ修復遺伝子発現欠損を伴う子宮体癌のMRI所見と臨床像

Purpose: The purpose of this study was to identify the magnetic resonance imaging (MRI) features of uterine endometrial carcinoma (EC) with DNA mismatch repair (MMR) deficiency. Materials and methods: This was a retrospective study approved by our institutional review board. The study included 118 patients pathologically diagnosed as having EC in our institution from April 2014 to December 2016. Of 118 patients, 8 were excluded because of insufficient data. Immunohistochemical analysis of MMR was performed retrospectively to observe the expressions of MLH1, MSH2, MSH6, and PMS2. A tumor with MMR deficiency was detected in 17 of 110 cases (15%). Clinical background characteristics and MRI findings were reviewed. These findings were compared between MMR deficiency group and the other group as a control group. Statistical significance was determined using the Fisher's exact test and the Mann-Whitney U test, as appropriate. Results: The clinical background characteristics of patients with EC with MMR deficiency were not significantly different from those of other patients. On MRI, the tumor was significantly more often located in the lower uterine site (MMR(-) vs. MMR(+): 29.4 vs. 8.9% [p = 0.0366]). Conclusion: EC with MMR deficiency tends to be located lower in the uterus, though most other findings were not significantly different from those of EC without MMR deficiency.博士（医学）・甲第749号・令和2年6月30日© Japan Radiological Society 2018© 2018 Springer Nature Switzerland AG. Part of Springer Nature.This is a post-peer-review, pre-copyedit version of an article published in Japanese journal of radiology. The final authenticated version is available online at: http://doi.org/10.1007/s11604-018-0741-4