50 research outputs found

    The Effect of Trade Openness on Deforestation: Empirical Analysis for 142 Countries

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    This study explores the effect of trade openness on deforestation. Previous studies do not find a clear effect of trade openness on deforestation. We use updated data on the annual rate of deforestation for 142 countries from 1990 to 2003, treat trade and income as endogenous, and take into consideration an adjustment process by applying a dynamic model. We find that an increase in trade openness increases deforestation for non-OECD countries while slowing down deforestation for OECD countries. There is a possibility that both capital-labor and environmental-regulation effects have a negative impact on deforestation in developing countries, whereas the opposite holds in developed countries.Trade Openness; Environment; Comparative Advantage; Deforestation

    Does Trade Liberalization Reduce Pollution Emissions?

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    Literature on trade liberalization, economic development, and the environment is largely inconclusive about the environmental consequences of trade. This study treats trade and income as endogenous and estimates the overall impact of trade openness on environmental quality using the instrumental variables technique. Trade is found to benefit the environment using a globally representative sample. A 1% increase in trade openness causes a decrease of 0.344%, 0.754%, and 1.909% for SO2, CO2, and BOD emissions, respectively, in the long term. Our results also show composition and scale-technique effects contribute differently to the overall effect in the short and long term.

    マトリックスメタロプロテアーゼと膵疾患

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    Matrix metalloproteinases (MMPs) is a family of collagenolytic enzymesand are associated with many pathological conditions. Especially, MMPs have a strong relation with tumor progression and invasion. In this review, we focused on association of MMPs and pancreatic diseases, and a potential treatment of MMPs inhibitors for pancreatic cancer.マトリックスメタロブロテアーゼ(MMP)は,コラーゲン分解能を有し,種々の疾患との関連性が示唆されている。とりわけ,癌の浸潤,転移には密接な関係があるとされている。また,MMP阻害剤を癌の治療に用いる試みもなされている。本稿ではMMPと膵疾患の関連性,MMP阻害剤の膵癌への応用の可能性について総説する

    Do Environmental Regulations Increase Bilateral Trade Flows?

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    The argument that stringent environmental regulations are generally thought to harm export flows is crucial when determining policy recommendations related to environmental preservation and international competitiveness. By using bilateral trade data, we examine the relationships between trade flows and various environmental stringency indices. Previous studies have used energy intensity, abatement cost intensity, and survey indices for regulations as proxies for the strictness of environmental policy. However, they have overlooked the indirect effect of environmental regulations on trade flows. If the strong version of the Porter hypothesis is confirmed, we need to consider the effect of environmental regulation on GDP, because GDP induced by environmental regulation affects trade flows. The present study clarifies the effects of regulation on trade flows by distinguishing between the indirect and direct effects. Our results indicate an observed non-negligible indirect effect of regulation, implying that the overall effect of appropriate regulation benefits trade flows

    An empirical study on the effects of economic growth on resource use

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    50589364 (科研費)南山大学経済発展が資源利用に及ぼす影響に関する実証分析 2020~2022年度科学研究費助成事業 (基盤研究 (C) (一般)) 研究成果報告書33917 (科研費)202220K01692 (科研費)research repor

    膵癌における癌遺伝子および癌抑制遺伝子

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    Recent advances in molecular biology have revealed that a number of oncogenes (K-ras, erbB-2, and Met) and tumor suppressor genes (p53, p16, APC, and DCC) contribute to the development of pancreatic cancer. This paper reviewed the present knowledge of oncogenes and tumor suppressor genes relevant to pancreatic cancer. Further studies on molecular alterations in pancreatic cancer may lead to a better understanding of tumor biology, offering a possibility of development of new diagnostic and therapeutic approaches in the future.膵癌の予後は惨憺たるものである。一方で,最近の分子生物学の分野での研究の進歩により,遺伝子レベルでの異常が膵癌では数多く存在することも明らかになってきた。膵癌の予後を改善するために,発展が期待される膵癌における遺伝子診断や遺伝子治療に向けて現在までの膵癌で明らかになった癌遺伝子(k-ras,erbB-2,Met),癌抑制遺伝子(p53,p16,APC,DDC)について,概説した

    A case of chronic pancreatitis successfully treated by endoscopic removal of protein plugs.

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    A 56 years old male with chronic pancreatitis complained of intractable abdominal pain, anorexia, emaciation and peripheral edema. Medical treatment initiated only partial improvement in the general condition and hypoproteinemia. Endoscopic retrograde cholangiopancreatography revealed multiple filling defects in the dilated main pancreatic duct. Endoscopic aspiration of pure pancreatic juice yielded numerous protein plugs. The endoscopic removal of protein plugs from the pancreatic duct resulted in remarkable improvement in symptoms, laboratory findings and ERCP findings. We consider this procedure to be an important new treatment of chronic pancreatitis.</p

    A case of chronic pancreatitis successfully treated by endoscopic removal of protein plugs.

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    A 56 years old male with chronic pancreatitis complained of intractable abdominal pain, anorexia, emaciation and peripheral edema. Medical treatment initiated only partial improvement in the general condition and hypoproteinemia. Endoscopic retrograde cholangiopancreatography revealed multiple filling defects in the dilated main pancreatic duct. Endoscopic aspiration of pure pancreatic juice yielded numerous protein plugs. The endoscopic removal of protein plugs from the pancreatic duct resulted in remarkable improvement in symptoms, laboratory findings and ERCP findings. We consider this procedure to be an important new treatment of chronic pancreatitis.</p

    A case report of a patient with chronic pancreatitis successfully treated by endoscopic elimination of protein plugs

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    Presented here is a case report of a 56 years old male patient with chronic pancreatitis in which a dramatic improvement in symptoms and objective findings were noted after endoscopic elimination of protein plugs. In September, 1979, he had an acute onset of pancreatitis followed by pseudocyst formation and the following combined operations were performed: resection of the pseudocyst, resection of the body and tail of the pancreas along with the spleen, partial resection of the stomach and the transverse colon, and gastroenterostomy according to Billroth I method. He had been followed up at out-patient clinic for chronic pancreatitis and diabetes until January 14,1979 when he was hospitalized for anorexia, loss of weight, pretibial edema, and upper-abdominal pain. The patient's condition was characterized by emaciation (height 152 cm, weight 37 kg), anemia (Hb 7.9g/dl), hypoproteinemia (serum protein 4.2 g/dl) , and hypolipidemia (total cholesterol 73 mg/dl). Abdominal ultrasound, abdominal CT and ERCP revealed stones in the pancreatic duct. Symptoms and objective findings were only partially improved by medical regimens. Subsequently we performed endoscopic cannulation of the pancreatic duct for elimination of pancreatic stones. Successful elimination of large numbers of protein plugs resulted in dramatic improvement of symptoms and objective findings. This procedure proved to add a new important tool in the treatment of chronic pancreatitis
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