Publications by authors named "Masako Yamada"

Microscopic structures in liquid-liquid extraction, such as structuration between extractants or extracted complexes in bulk organic phases and at interfaces, can influence macroscopic phenomena, such as the distribution behavior of solutes, including extraction efficiency and selectivity. In this study, we correlated the macroscopic behavior of the Zr(IV) extraction from nitric acid solutions with microscopic structural information to understand at the molecular level the key factors contributing to the higher metal ion extraction performance in the fluorous extraction system as compared to the analogous organic extraction system. The fluorous and organic extraction systems consist of tris(4,4,5,5,6,6,7,7,7-nonafluoroheptyl) phosphate (TFP) in perfluorohexane and tri--heptyl phosphate (THP) in -hexane, respectively.

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  • The study used neutron reflectivity to examine the interface between deuterated polyethylene (dPE) films and silicon substrates, finding water accumulation even in normal conditions.
  • After treating the dPE films, it was revealed that the adsorption layer consisted of an inner layer (about 3.7 nm thick) and a thin outer layer, with the inner layer having a density similar to bulk polyethylene.
  • Understanding the structure of these layers is important for enhancing the performance of polymer/inorganic nanocomposites, especially since crystalline polyolefins are commonly used as matrix materials.
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  • - The study explored how poly(methyl acrylate) (PMA) additives behave when adsorbing to surfaces and their effects during fluid lubrication in narrow gaps, using techniques like neutron reflectometry and viscometry.
  • - Findings indicated that while the initial adsorption layer of the polymer was about 3 nm thick at rest, it significantly grew to over 100 nm when the oil flowed through larger microchannels over time.
  • - The effective viscosity of the fluid increased at low shear rates, and the results suggested that the formation of inhomogeneous structures from PMA aggregates contributed to this resistance, particularly affecting flow behavior at low speeds.
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Over one-third of stroke survivors develop aphasia, and language dysfunction persists for the remainder of their lives. Brain language network changes in patients with aphasia. Recently, it has been reported that phase synchrony within a low beta-band (14-19 Hz) frequency between Broca's area and the homotopic region of the right hemisphere is positively correlated with language function in patients with subacute post-stroke aphasia, suggesting that synchrony is important for language recovery.

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Objectives: In Japan, secondhand smoke (SHS) exposure in children has changed with increased heated tobacco products (HTPs) and electronic cigarettes (e-cigs) use. We clarified the status of home-based SHS exposure among children, including HTPs and e-cigs, as well as maternal perceptions on SHS avoidance and examined its association with health risks.

Methods: This cross-sectional questionnaire-survey-based study included 379 mothers who were raising children aged < 5 years.

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Aims: To review the literature and identify factors that make sense of and influence nurses' career success. We sought to provide insights into achieving nurses' career success.

Design: An integrative review conducted in May 2022 using Whittemore and Knafl's methodology of integrative review.

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Aim: This study aimed to develop the nurses' Work Values Scale (WVS) to determine how important certain values are for nurses and to psychometrically test the scale.

Design: Instrument development and validation study.

Method: A two-phase scale development process comprising item generation, scale improvement and psychometric property evaluation was used.

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Aim: Although researchers have emphasized the importance of enhancing work engagement in nurses to ensure work-related well-being, the underlying mechanisms of the influencing factors of work engagement remain unclear. This study aimed to elucidate whether work-to-family spillover moderates the relationship between nurses' work values and work engagement.

Methods: In total, 2600 nurses from 52 hospitals in the Tohoku region of Japan were recruited, and 1587 nurses participated.

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This study aimed to classify nurses with similar work values into subgroups by examining their intrinsic, extrinsic, social, and prestige work values. Additionally, we clarified the characteristics of the obtained subgroups using personal attributes, work engagement, and life satisfaction. Using a cross-sectional observational study design, we randomly sampled 52 hospitals in the Tohoku region of Japan and conducted a self-administered questionnaire survey with 2600 nurses.

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: Postoperative atrial fibrillation (POAF) is defined as new-onset AF in the immediate postoperative period. The relatively high incidence of POAF after cardiac surgery is well described, but pathophysiological mechanisms underlying the initiation, maintenance, and progression of POAF may be multifactorial and have not yet been comprehensively characterized. One of the mechanisms includes altered Ca kinetics.

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We report on the commissioning results of the cold neutron multiplexing secondary spectrometer CAMEA (Continuous Angle Multi-Energy Analysis) at the Swiss Spallation Neutron Source at the Paul Scherrer Institut, Switzerland. CAMEA is optimized for efficient data acquisition of scattered neutrons in the horizontal scattering plane, allowing for detailed and rapid mapping of low-energy excitations under extreme sample environment conditions.

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Background: Career competencies, which are the knowledge, skills, and abilities essential for career development, have been shown to facilitate career success, fulfilling both work and life goals. In dynamically changing healthcare settings, nurses' career competencies are key for successfully navigating their careers and improving their nursing practice abilities. However, limited studies have examined career competencies in the nursing profession.

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  • The clinical practice guideline aims to guide nurses in assessing aspiration and pharyngeal residue to prevent aspiration pneumonia in adults with oropharyngeal dysphagia during eating and swallowing.
  • Established by the Japan Academy of Nursing Science in April 2018, the guideline follows the Minds Manual for Guideline Development 2017 to ensure evidence-based management options that consider patient values and benefits.
  • Ten recommendations were developed from various assessment methods, with eight classified as GRADE 2C, demonstrating the guideline's reliability and incorporation of recent research findings.
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The use of effective shielding materials against radiation is important among medical staff in nuclear medicine. Hence, the current study investigated the shielding effects of a commercially available tungsten apron using gamma ray measuring instruments. Further, the occupational radiation exposure of nurses during I-meta-iodo-benzyl-guanidine (I-MIBG) therapy for children with high-risk neuroblastoma was evaluated.

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We report an international collaborative project to develop the first Doctor of Nursing Practice (DNP) program in Japan. We described the development and implementation of the first DNP program at the St. Luke's International University in Tokyo and the collaboration with the University of North Carolina at Chapel Hill in the United States.

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This study aimed to examine the relationship between one's physical status related to non-communicable diseases (NCDs) and social isolation, and to identify lifestyle behaviors for the prevention of NCDs associated with social isolation among community-dwelling older adults in Japan. A cross-sectional study was conducted to investigate lifestyle behaviors for NCD prevention associated with social isolation in Japanese adults aged 60 years and above in a community setting. Out of 57 participants, 17.

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Aim: Nurses have difficulty assessing the type of constipation by ordinal assessment methods and may therefore struggle to select an appropriate defecation care. Although previous studies described the safety and effectiveness of defecation care based on ultrasonographic observations in the colorectum, no standardized educational program has been established. This study aimed to determine the feasibility of the constipation point-of-care ultrasound (POCUS) educational program regarding the use of ultrasonography as an assessment tool to determine different types of constipation.

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Objective: I-meta-iodo-benzyl-guanidine (I-MIBG) therapy has been used in children with high-risk neuroblastoma, who, in Japan, are cared for by trained nurses. To determine the safety of occupational radiation exposure in nurses, we retrospectively examined radiation exposure during therapy.

Methods: Sixty-two nurses who received radiation exposure during I-MIBG therapy were assessed for the daily percentage of total radiation exposure received using the formula, daily radiation exposure/total radiation dose × 100; self-care score of children was evaluated.

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We aim to clarify the behaviors toward noncommunicable diseases (NCDs) prevention focusing on lifestyle-related diseases and physical health status and examine their relationship among community-dwelling women in Indonesia. This cross-sectional study included women aged 45 years and older. Data were collected through an interview using a structured questionnaire; the following parameters were also measured: height, weight, body mass index (BMI), blood pressure (BP), handgrip strength, and 10 m gait speed.

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Background: For nurses to provide swallowing care that is appropriate to individual patients' swallowing functions, techniques for using ultrasound to monitor for aspiration and pharyngeal post-swallow residue would be helpful.

Objectives: This study seeks to clarify the effectiveness of an education program concerning the use of ultrasound to assess swallowing function (the "Swallowing Point-of-Care Ultrasound Education Program"). This assessment is based on a comparison of the observation skills of general nurses' and certified nurses in dysphagia nursing in this regard; both groups underwent the education program, but dysphagia nurses have greater knowledge of swallowing functions as a result of their training.

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The demand for methods to ensure safe oral consumption of food and liquids in order to prevent aspiration pneumonia has increased over the last decade. This study investigated the safety of swallowing care selected by adding ultrasound-based observation, evaluated its efficacy, and determined effective content of selected swallowing care. The study employed a pragmatic quasi-experimental research design.

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The aim of this study was to foster the better perfusion education when providing extracorporeal circulation (ECC) technology for future perfusionists. For this purpose, we have developed an augmented reality (AR) program for ECC students. Currently, the cost of equipment and its simulator is high.

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We studied the effects of fish oil and apple polyphenol combined with a high cholesterol diet in rats, and assessed serum and liver lipids concentrations, serum oxidative stress and fecal bile acid excretion. Young male rats were fed a diet containing the control (Control), apple polyphenol (AP), fish oil (FO) or fish oil+apple polyphenol (FO+AP) for 4 wk. The control diet contained a lard component.

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We determined effect of aerobic exercise in early evening on the quality, quantity, and haemodynamic response of subsequent nocturnal sleep in the home. Ten healthy young participants performed two protocols, with/without cycle ergometer exercise (60 min at 50% heart rate reserve) in early evening. Blood pressure (BP) (Holter) and physical activity (accelerometer) were measured from late afternoon of day 1 until noon of next day (day 2).

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