Ryo Nishimura
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View article: Differences in contributing factors to diagnostic errors between physicians and allied health professionals: a nationwide analysis in Japan
Differences in contributing factors to diagnostic errors between physicians and allied health professionals: a nationwide analysis in Japan Open
Introduction Diagnostic errors significantly contribute to adverse events, patient harm and malpractice claims. While most research focuses on physicians, allied health professionals (AHPs) also play a critical role in diagnostic processes…
View article: Diagnosis of Cystic Endometrial Hyperplasia and Hydrometra in a Pet Goat
Diagnosis of Cystic Endometrial Hyperplasia and Hydrometra in a Pet Goat Open
This case report includes the clinical utility of ultrasonography, intrauterine endoscopy (hysteroscopy), and computed tomography (CT) in the preoperative evaluation of hydrometra in a pet goat, which did not completely heal with medical t…
View article: A New Scheme of Harris Hawk Optimizer With Memory Saving Strategy (HHO-MSS) for Controlling Parameters of Power System Stabilizer and Virtual Inertia in Renewable Microgrid Power System
A New Scheme of Harris Hawk Optimizer With Memory Saving Strategy (HHO-MSS) for Controlling Parameters of Power System Stabilizer and Virtual Inertia in Renewable Microgrid Power System Open
Renewable microgrid power systems confront a typical stability challenge due to the deficiency of damping and inertia properties. This stability can be maintained by controlling the parameters of the Power System Stabilizer (PSS) and Virtu…
View article: A Hybrid Controlling Parameters of Power System Stabilizer and Virtual Inertia Using Harris Hawk Optimizer in Interconnected Renewable Power Systems
A Hybrid Controlling Parameters of Power System Stabilizer and Virtual Inertia Using Harris Hawk Optimizer in Interconnected Renewable Power Systems Open
A hybrid controlling method for stability controllers is needed in the interconnected renewable power systems due to the working conditions being diverse from low to high levels of Renewable Energy Sources (RES). Power System Stabilizer an…
View article: Impact of selective ion transmission on measurement by retarding field analyzer
Impact of selective ion transmission on measurement by retarding field analyzer Open
The impact of selective ion transmission on the use of retarding field analyzers (RFAs), which is attributed to the ion Larmor motion, was investigated. Depending on the ion Larmor radius and ion guiding center position, selective transmis…
View article: Hatchability evaluation of bovine IVF embryos using OCT-based 3D image analysis
Hatchability evaluation of bovine IVF embryos using OCT-based 3D image analysis Open
Although embryo transfer is widely applied in cattle, many of the transferred embryos do not result in pregnancy. To determine a new parameter for bovine embryo evaluation, we investigated the relationships between in vitro hatchability an…
View article: On electron temperature rise in divertor relevant recombining plasma along magnetic field line
On electron temperature rise in divertor relevant recombining plasma along magnetic field line Open
The rise of electron temperature along the magnetic field line was clearly observed in divertor relevant recombining plasma, even though there was no additional electron heating source. Electron temperature obtained at recombination front …
View article: Electrical Resistance Characteristics of Electro-adhesive Gel Sheet While Fixing Conductor Object
Electrical Resistance Characteristics of Electro-adhesive Gel Sheet While Fixing Conductor Object Open
In this study, Electro-Adhesive Gel Sheet (EAGS) was fabricated. It is suggested that the electrical resistance characteristics of EAGS could be applied as slip detection sensors or contact detection sensors. EAG is a functional elastomer …
View article: Three-Dimensional Live Imaging of Bovine Preimplantation Embryos: A New Method for IVF Embryo Evaluation
Three-Dimensional Live Imaging of Bovine Preimplantation Embryos: A New Method for IVF Embryo Evaluation Open
Conception rates for transferred bovine embryos are lower than those for artificial insemination. Embryo transfer (ET) is widely used in cattle but many of the transferred embryos fail to develop, thus, a more effective method for selectin…
View article: Enhancement of the spin Seebeck effect owing to bismuth substitution in thermoelectric generators fabricated from LPE Bi-substituted YIG films
Enhancement of the spin Seebeck effect owing to bismuth substitution in thermoelectric generators fabricated from LPE Bi-substituted YIG films Open
Raising the thermoelectric voltage in spin thermoelectric generators is an important subject. We investigated the substitution of bismuth for yttrium to increase spin pumping at the paramagnetic metal and ferrimagnetic insulator (PM/FMI) i…
View article: Development of an electro-adhesive hand with the function of contact and slip detection
Development of an electro-adhesive hand with the function of contact and slip detection Open
In this study, Electro-Adhesive Gel Sheet (EAGS) was attached to a robot hand and used as a gripper. Electro-Adhesive Gel (EAG) is a functional elastomer which can change surface adhesiveness depending on an electric field. EAGS is a sheet…
View article: Three-dimensional live imaging of bovine embryos by optical coherence tomography
Three-dimensional live imaging of bovine embryos by optical coherence tomography Open
While embryo transfer (ET) is widely practiced, many of the transferred embryos fail to develop in cattle. To establish a more effective method for selecting bovine embryos for ET, here we quantified morphological parameters of living embr…
View article: Research of postpartum endometritis in Japanese Black cattle with cystic ovarian disease by vaginal mucus test and endometrial cytology
Research of postpartum endometritis in Japanese Black cattle with cystic ovarian disease by vaginal mucus test and endometrial cytology Open
The relationship between endometritis and cystic ovarian disease (COD) is still unclear in Japanese Black cattle. Endometritis is classified into clinical endometritis (CE) and subclinical endometritis (SE). The objective of this study was…
View article: Multiple roles of hypoxia in bovine corpus luteum
Multiple roles of hypoxia in bovine corpus luteum Open
There has been increasing interest in the role of hypoxia in the microenvironment of organs, because of the discovery of hypoxia-inducible factor-1 (HIF1), which acts as a transcription factor for many genes activated specifically under hy…
View article: Reliability of ultrasonographic measurements of bovine sole structures in relation to sole horn thickness, measured by computed tomography, and sole horn hardness
Reliability of ultrasonographic measurements of bovine sole structures in relation to sole horn thickness, measured by computed tomography, and sole horn hardness Open
The goal of the present study was to determine the effect of sole horn thickness (SHT) and sole horn hardness (SHD) on ultrasonographic visualization of sole structures in the inner and outer claws of 150 Holstein-Friesian cows, and to eva…
View article: Effect of hypoxia on progesterone production by cultured bovine early and mid luteal cells
Effect of hypoxia on progesterone production by cultured bovine early and mid luteal cells Open
A major role of the corpus luteum (CL) is to produce progesterone (P4). The CL has immature vasculature shortly after ovulation, suggesting it exists under hypoxic conditions. To elucidate the mechanism involved in regulation of luteal cel…
View article: Effect of post artificial insemination treatment with two different progesterone intravaginal devices on conception and synchronization of the returning estrus in Japanese Black cows
Effect of post artificial insemination treatment with two different progesterone intravaginal devices on conception and synchronization of the returning estrus in Japanese Black cows Open
The objective of this study was to evaluate the effects of post artificial insemination (AI) treatment with intravaginal progesterone device (P4 device) on conception rate, synchronization of returning estrus and plasma P4 concentration in…
View article: BNIP3 expression in bovine follicle and corpus luteum
BNIP3 expression in bovine follicle and corpus luteum Open
BNIP3 (BCL2/adenovirus E1B nineteen kilodalton interacting protein-3), a member of the BCL2 family, is activated under hypoxic conditions and induces apoptosis or mitochondrial autophagy for adapting cells to hypoxia. The physiological rol…
View article: Three-step in vitro maturation culture of bovine oocytes imitating temporal changes of estradiol-17<i>β</i> and progesterone concentrations in preovulatory follicular fluid
Three-step in vitro maturation culture of bovine oocytes imitating temporal changes of estradiol-17<i>β</i> and progesterone concentrations in preovulatory follicular fluid Open
The objective of the article is to evaluate the effect of three-step in vitro maturation (IVM) culture system imitating estradiol-17β (E2) and progesterone (P4) concentrations in preovulatory follicles on in vitro bovine embryo production.…
View article: Hypoxia increases glucose transporter 1 expression in bovine corpus luteum at the early luteal stage
Hypoxia increases glucose transporter 1 expression in bovine corpus luteum at the early luteal stage Open
A major role of the corpus luteum (CL) is to produce progesterone (P4). The CL has immature vasculature shortly after ovulation, suggesting it exists under hypoxic conditions. Hypoxia-inducible factor-1 (HIF1) induces the expression of glu…
View article: Development of a Compact Divertor Plasma Simulator for Plasma-Wall Interaction Studies on Neutron-Irradiated Materials
Development of a Compact Divertor Plasma Simulator for Plasma-Wall Interaction Studies on Neutron-Irradiated Materials Open
We have developed a compact divertor plasma simulator (CDPS) that can produce steady-state deuterium and/or helium plasmas with densities above ∼ 1018 m−3 for Plasma-Wall Interaction (PWI) studies of neutronirradiated materials. The maximu…
View article: Hypoxia-inducible factor 1 mediates hypoxia-enhanced synthesis of progesterone during luteinization of granulosa cells
Hypoxia-inducible factor 1 mediates hypoxia-enhanced synthesis of progesterone during luteinization of granulosa cells Open
Hypoxia has been suggested to enhance progesterone (P4) synthesis in luteinizing granulosa cells (GCs), but the mechanism is unclear. The present study was designed to test the hypothesis that the hypoxia-induced increase in P4 synthesis d…