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( Maki Maebashi ),( Motoyasu Natsuga ),( Hiroaki Egashira ),( Nobuo Ura ),( Mitsuhiko Katahira ) 한국농업기계학회 2012 바이오시스템공학 Vol.37 No.6
Purpose: Green soybeans (edamame) are now an economically important and popular food product in Japan. In order to shorten breeding time and to decide an optimal harvest time, we have been developing a dedicated NIRT spectrometer since 2004 for the determination of constituent content such as sucrose and free amino acids, which are two major contributors to the eating quality, in a single pod green soybean. Methods: The obtained models showed that the developed NIRT instrument had reasonable accuracy for the determination of these two components. Then we carried out the investigation into the change in two components during a few days storage using these models with changing time, variety/cultivar, packaging and temperature. Results: The result showed that the most affecting factor on decreasing both sucrose content and free amino acids was variety /cultivar. The time, packaging and temperature also affected significantly in most cases.
Makis, William,Ciarallo, Anthony,Novales-Diaz, Javier-A. The Korea Society of Nuclear Medicine 2011 핵의학 분자영상 Vol.45 No.4
A 66-year-old man, who presented with bright red blood per rectum, was referred for an $^{18}F$-FDG PET/CT after colonoscopy showed two suspicious colon masses, which were biopsied to reveal an adenocarcinoma of unknown origin. PET/CT showed two intensely FDG-avid colon masses as well as an unsuspected FDG-avid lung mass, which was biopsied to reveal a primary lung adenocarcinoma. Immunohistochemistry confirmed the two colon metastases were of pulmonary origin. It is extremely rare for lung carcinoma to present with symptomatic colon metastases, with only 11 cases described in the literature. We report the first case of the utility of $^{18}F$-FDG PET/CT in staging a patient who presented with symptomatic colon metastases of an unknown primary lung malignancy.
Makis, William,Rakheja, Rajan,Lavoie, Josee,Hickeson, Marc The Korea Society of Nuclear Medicine 2012 핵의학 분자영상 Vol.46 No.2
Tetrasomy 8 is a relatively rare chromosomal abnormality that has been reported in only 33 cases in hematologic disorders. It is known for its association with aggressive acute myeloid leukemia (AML) and myeloid sarcoma and is considered a very poor prognostic factor. Myeloid sarcoma is a rare hematologic malignancy characterized by tumor masses consisting of immature myeloid cells, presenting at an extramedullary site. We present a case of a 17-year-old boy referred for an $^{18}F$-FDG PET/CT for the evaluation of pleural masses and spinal bone lesions seen on CT, after presenting with a 4 month history of chest pain. The PET/CT revealed extensive FDG-avid extramedullary disease in the soft tissues of the chest, abdomen, and pelvis, which were biopsy-proven to be myeloid sarcoma, as well as extensive intramedullary disease biopsy proven to be AML. This is the first report of the use of $^{18}F$-FDG PET/CT to stage a subset of aggressive AML and myeloid sarcoma in a patient with an associated chromosomal abnormality (tetrasomy 8).
Makis, William,Ciarallo, Anthony,Novales-Diaz, Javier-A.,Lisbona, Robert The Korea Society of Nuclear Medicine 2011 핵의학 분자영상 Vol.45 No.4
Bilateral renal masses are uncommon but can raise a strong suspicion of primary or secondary malignancy, especially during the initial work-up of an oncology patient. Renal oncocytomas are benign renal tumors that are commonly discovered incidentally on diagnostic imaging with a small percentage occurring bilaterally. Although $^{18}F$-FDG uptake in renal oncocytomas has been described, a case of a bilateral $^{18}F$-FDG-avid renal oncocytoma has not been previously reported in the literature. A variety of malignant causes of bilateral $^{18}F$-FDG positive renal masses are known, however it is important to include this benign etiology in the differential diagnosis. We report an unusual case of an incidental bilateral renal oncocytoma evaluated with contrast enhanced CT and $^{18}F$-FDG PET/CT.
Effect of arrangement of design elements on recognition of complex signs
Maki Ishihara,Akira Okada,Kuniko Yamashita 대한인간공학회 2007 대한인간공학회 학술대회논문집 Vol.- No.-
Due to the expansion of cities and the increasing number of large-scale and complex public spaces, there is an increase in public signage. Moreover, the information described on these signs tends to be diverse and complicated. Complex signs that contain multiple destinations or other information must be considered to determine not only the proper size, color, etc. but also the most effective arrangement of design elements. In the previous research, the cognitive utility of complex public signs was estimated using computer simulation software. In the current research, we focused on the objective estimation of the effectiveness of the results obtained in the previous research utilizing an eye mark recording system. Two cognitive engineering experiments clarified five points for improvement in the usability of complex signs, as follows: 1) Parallel construction of characters and pictograms is more efficient. 2) Grouping elements result in rapid recognition of information chunks. 3) Visual characters and pictograms are effective, along with proper density of information. 4) Specific arrangement of sign arrows is effective. 5) Figures on signs influence the sequence of information searches.
Makis, William,Derbekyan, Vilma The Korea Society of Nuclear Medicine 2012 핵의학 분자영상 Vol.46 No.1
A 67-year-old woman, who presented with a 2 month history of dyspnea, had a ventilation and perfusion lung scan that showed absent perfusion of the entire right lung with normal ventilation, as well as a rounded matched defect in the left lower lung adjacent to midline, suspicious for an aortic aneurysm or dissection. CT pulmonary angiography revealed a massive descending aortic aneurysm compressing the right pulmonary artery as well as the left lung parenchyma, accounting for the bilateral perfusion scan defects. We present the Xe-133 ventilation, Tc-99m MAA perfusion and CT pulmonary angiography imaging findings of this rare case.