Publications by authors named "Kosuke Watanabe"

We present an ab initio calculation to understand electronic structures and optical properties of a tungsten carbide WC being a major component of a TiCN-based cermet. The TiCN-based cermet is widely used as a cutting tool, and is discarded as usual after use. On the other hand, cermet itself is also a famous ingredient of a solar absorption film.

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Catalytic ethane dehydrogenation (EDH) was investigated to improve the efficient production of ethylene, an extremely important chemical feedstock. The perovskite oxide YCrO was found to be more suitable than earlier reported catalysts because it exhibits greater activity and CH selectivity (94.3%) in the presence of steam at 973 K.

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Objective: Skin microbiomes vary across individuals. They are known to play essential roles in maintaining homeostasis and preventing infectious pathogens. In recent years, cosmetic product development has begun to focus on the relationship between skin microbiomes and skin conditions.

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Half-Heusler compound has drawn attention in a variety of fields as a candidate material for thermoelectric energy conversion and spintronics technology. When the half-Heusler compound is incorporated into the device, the control of high lattice thermal conductivity owing to high crystal symmetry is a challenge for the thermal manager of the device. The calculation for the prediction of lattice thermal conductivity is an important physical parameter for controlling the thermal management of the device.

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The structure-selective precise synthesis of carbon nanotubes (CNTs) has been long sought in materials science. The aromatic molecules corresponding to segment structures of CNTs, that is, carbon nanobelts (CNBs), are of interest as templates for CNT growth. Among the three types of CNB (armchair, chiral and zigzag CNBs), zigzag CNBs have been considered the most difficult type to synthesize.

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In this study, the theoretical analysis of the strain energy of helicene-containing carbon nanobelts is reported. It was found that the combined method of linear regression analysis and suitable homodesmotic reactions can successfully estimate the strain energies of various helicene-containing carbon nanobelts including previously synthesized chiral (18,12) carbon nanobelts.

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The half-Heusler NiZrSn (NZS) alloy is particularly interesting owing to its excellent thermoelectric properties, mechanical strength, and oxidation resistance. However, the experimentally investigated thermal conductivity of half-Heusler NZS alloys shows discrepancies when compared to the theoretical predictions. This study investigates the crystal structure around atomic defects by comparing experimental and theoretical X-ray absorption fine structure (XAFS) spectra of the crystal structure of a half-Heusler NZS alloy.

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Objectives: The aim of this study was to examine temporal summation (TS) and conditioned pain modulation (CPM) in patients with burning mouth syndrome (BMS) and healthy controls using intra-epidermal electrical stimulation (IES).

Materials And Methods: Twenty-six female patients with BMS and 27 healthy female controls participated in this study. A single stimulus with electrical stimulation followed by a train of 10 successive stimuli was administered to the right chin of participants in both the BMS and control groups.

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Burning mouth syndrome (BMS) is classified into idiopathic orofacial pain conditions. Although central and peripheral neuropathic mechanisms are believed to be involved, the etiology remains to be fully elucidated. The present study examined temporal brain responses to an ongoing hot stimulus to investigate the pain modulating system in patients with BMS.

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Burning mouth syndrome (BMS) is one of the most frequently seen idiopathic pain conditions in a dental setting. Peri- and postmenopausal women are most frequently affected, and patients who experience BMS complain of persistent burning pain mainly at the tip and the bilateral border of the tongue. Recent studies have assessed whether BMS is a neuropathic pain condition, based on morphologic changes in biopsied tongue specimens, and whether there are abnormal pain responses in patients with this disease.

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We have previously proposed the use of acoustic radiation force in blood vessels for therapeutic application of ultrasound. For this purpose, we have developed a blood vessel network reconstruction algorithm to fuse between B-mode and Doppler-mode volumes. However, a size of ultrasound volume was insufficient to recognize the network for treatment.

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Background And Overview: The authors report the case of a patient with mixed connective tissue disease (MCTD) and Sjögren syndrome, showing signs and symptoms of bilateral trigeminal neuropathy and aseptic meningitis. The patient was assessed by means of quantitative sensory testing (QST) according to the German Research Network on Neuropathic Pain standards, in both the gingiva and forearm, and the results were compared with those of healthy control participants.

Case Description: A 27-year-old woman, who had received a diagnosis of MCTD and Sjögren syndrome from a rheumatologist, sought treatment at an orofacial pain clinic for bilateral electriclike pain in the maxillary anterior gingiva, eyelids, and cheeks.

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Background: We encountered two unrelated individuals suffering from neurological disorders, including epilepsy and scoliosis.

Case Presentation: Whole-exome sequencing identified the same recurrent, de novo, pathogenic variant in NUS1 [NM_138459.4:c.

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Purpose: Classical trigeminal neuralgia with concomitant persistent facial pain responds poorly to conservative treatment. The authors describe the effects of microvascular decompression and radiofrequency thermocoagulation for patients with classical trigeminal neuralgia and concomitant persistent facial pain.

Case Report: Case 1 was a 61-year-old man with dull, continuous, aching pain in the left maxillary and mandibular molar area.

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We report the preparations, thermoelectric and magnetic properties, and electronic structures of Cu-Ti-S systems, namely, cubic thiospinel c-CuTiS ( x ≤ 0.375), a derivative cubic and Ti-rich phase c-CuTiS ( x = 0.5, 0.

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Objectives: A standardized battery of quantitative sensory tests developed by the German Research Network on Neuropathic Pain (DFNS) was used to assess the association between somatosensory dysfunction and disease duration in patients with burning mouth syndrome (BMS).

Materials And Methods: The 28 female participants with BMS were classified according to disease duration: ≤ 6 months (subchronic BMS, n = 15) and > 6 months (chronic BMS, n = 13); 29 age- and sex-matched healthy volunteers (control group) were recruited from staff of a dental hospital. The DFNS quantitative sensory testing protocol was applied at the ulnar surface of the right forearm and the tip of the tongue.

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Assessment and treatment of masticatory myofascial pain syndrome (MPS) are not standardized and remain controversial. We examined whether muscle hardness was useful for evaluating masticatory MPS and analyzed the effectiveness of treatments such as stretching and massage (SM) and trigger point injection (TPI). Twenty healthy volunteers and 20 MPS patients were enrolled.

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Background: Numerous publications have reported on migraines misdiagnosed as endodontic pathologies. However, reports on the effect that concurrent migraine and endodontic pathology can have on each other and how their respective treatments can also affect each other are limited.

Clinical Presentation: Two cases are reported that presented with both migraine and periapical pathology.

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Background And Purpose: Lateral medullary infarction (LMI) sometimes causes long-lasting dizziness. Although the precise mechanism of chronic post-LMI dizziness is unknown, a cerebellar control disorder of the vestibulo-ocular reflex (VOR) has been reported in such patients. We conducted a proof-of-principle cohort study to assess the potential efficacy of cerebellar repetitive transcranial magnetic stimulation (rTMS) as treatment for chronic post-LMI dizziness.

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The usefulness of stratum corneum neutrophil gelatinase-associated lipocalin and stratum corneum galectin-7 as biomarkers of acne vulgaris was studied. A comparison of neutrophil gelatinase-associated lipocalin levels on the cheeks of patients with acne vulgaris at the start of the study and at the time of symptom improvement showed a significant decrease. On the other hand, the galectin-7 levels at the time of symptom improvement were significantly higher than those at the start of the study.

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Selectivity is an important parameter of resistive-type gas sensors that use metal oxides. In this study, a highly selective toluene sensor is prepared using highly dispersed gold-nanoparticle-loaded zinc oxide nanoparticles (Au-ZnO NPs). Au-ZnO NPs are synthesized by coprecipitation and calcination at 400 °C with Au loadings of 0.

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Background And Purpose: Repetitive transcranial magnetic stimulation (rTMS) is reported to improve chronic post-stoke hemiparesis. However, application of rTMS during the acute phase of post-stroke has not fully been investigated. We investigated the safety and the efficacy of intermittent theta-burst stimulation (iTBS) of the affected motor cortex and 1-Hz stimulation of the unaffected hemisphere during the acute phase in patients with hemiparesis due to capsular infarction.

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A malignant tumor can cause hypercoagulation and it also often coexists with thrombosis. Cisplatin-based chemotherapy can also induce adverse vascular effects, including arterial thrombosis. We herein report a case of acute arterial thrombosis in a patient undergoing postoperative adjuvant cisplatin-based chemotherapy for completely resected lung cancer.

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Background: This report describes four cases of cracked tooth syndrome secondary to traumatic occlusion that mimicked trigeminal autonomic cephalalgias. All patients were referred by general practitioners to the Orofacial Pain Clinic at Nihon University Dental School for assessment of atypical facial pain.

Clinical Presentation: Case 1: A 51-year-old woman presented with severe pain in the maxillary and mandibular left molars.

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