Penerapan Strategi Pembelajaran Inkuiri Dipadukan Media Audio Visual Untuk Meningkatkan Kualitas Pembelajaran Biologi Siswa Kelas VII D SMP N 1 Jaten

– The aim of this research is improve quality of biology learning for conditioning class, student attitude in class, the performance of teacher and student motivation of learning in student class VII-D 1st Junior High School Of Jaten through the application of strategies for inquiry learning combined audio visual media. This research was classroom action research with planning, action, observation, and reflection steps. Data was collected using questionnaire, observation, and interview. The validation of data using method and observer triangulation techniques. The data analyzed by descriptive. The result in cycles I describes that mean of observation data in conditioning class indicators are 70,20%, students\u27 attitudes in class are 62,77%, performance of teachers in the learning are 80% and students motivation in learning are 68,18%. For the questionnaire, observation data in conditioning class indicators are 74,53%, students\u27 attitudes in class are 74,13%, and students motivation in learning are 74,38%. The result in cycles II describes that mean of observation data in conditioning class indicators are 80,81%, students\u27 attitudes in class are 80.09%, performance of teachers in the learning are 96,67% and student motivation in learning are 83,71%. For the questionnaire, observation data in conditioning class indicators are 83,87%, students\u27 attitudes in class are 82,49%, and students motivation in learning are 79,43%. In addition, this research also uses interview to know effect of research in quality of biology learning. The result of interview shows that students\u27 attitudes more positive, students motivation more increase and classroom climate more conducive on learning activities. The conclusion of research describes that the combination of audio visual media in inquiry learning strategies can improve quality of biology learning for conditioning class, students\u27 attitudes, performance of teachers in the learning and motivation of learning in student class VII-D in 1st junior high school of jaten

<論文>本文比較による『源氏物語』教材化の可能性―「若紫」巻を用いて―

departmental bulletin pape

高振動励起分子の性質とダイナミックスの理論的研究

本研究の目的は、分子の高振動励起状態の性質とそのダイナミックス等に関する基礎的な運動法則を明かにすることである。化学反応や分子振動などを典型例とする分子の運動は、半古典性と、半統計力学的性という最も基本的な運動学的性質が顕著に現われることから量子カオス研究の重要な一分野になっている。本研究で現在までに明かになったことは、概略、以下の通りである:(1)筆者が開発した位相空間経路積分の方法を分子振動の量子化の問題に適用し、状態密度の一般的表式を得た。この際、系が可積分の場合には所謂EBK条件が得られ、非可積分(カオス)の場合には、Gutzwillerの式を拡張したものが得られた。更に、非可積分系は、二つの場合に分けられる。系が不安定な周期軌道を持つ場合には、状態密度は、それらの軌道のエネルギ-位置でロ-レンツ型ピ-クを持ち、その高さは軌道の安定度に逆比例する。一方、安定な周期軌道を持つ場合には、共鳴型の量子条件を持つ事が統一的に示された。特に後者の場合、現に実験で得られている準カオス系のスペクトルの解釈に重要な示唆を与えるものとなっている。 (2)可積分系の場合、分子の作用変数を実際的に計算する手法を位相空間の幾何学に基づいて開発した。これにより、相当大きな分子の振動量子化が行なえるようになった。これに関連して、高速フ-リエ変換のスペクトルから精度の高い周波数と振幅を計算するアルゴリズムを同時に開発した。更に、作用変数の近似概念として擬作用変数というものを定義した。擬作用変数はカオス系では連続スペクトルを与えるが、これを調ベることにより、位相空間内で異なる多様体が接合することによる連続スペクトルの発生や引込現象に類似のスペクトルの存在などを見いだした。また、この理論を使って一次共鳴の研究等が現在も進行中である。科学研究費補助金 研究種目:一般研究(C) 課題番号:01540396 研究代表者:高塚 和夫 研究期間:1989-1990年度research repor

A case of a resected mediastinal thymoma with spontaneous regression

Introduction and importance We report a case of a resected thymoma with preoperative spontaneous regression in a 76-year-old woman. Only 13 cases of spontaneous regression of thymomas have been reported in the English literature, including this one. Case presentation During a regular checkup, chest radiography revealed an abnormal shadow in the right hilum of an asymptomatic 76-year-old woman. Chest computed tomography (CT) revealed a 41 × 32 mm anterior mediastinal tumor. Six months later, she presented with sudden anterior chest pain. Chest CT revealed that the tumor had grown slightly to 43 × 42 mm. Chest CT performed one day preoperatively revealed that the tumor had rapidly shrunk in one month (to 26 × 23 mm) and contained areas of necrosis. Surgical resection was performed to obtain a definitive diagnosis. The postoperative diagnosis was a type AB thymoma, classified as pathological stage I (Masaoka's classification) with intratumoral necrosis. Clinical discussion The spontaneous regression in the present case might have been related to the necrosis observed in the tumor. We postulate that vascular occlusion due to minute thromboembolism resulted in tumor necrosis. This might have caused inflammation around the tumor, thereby causing the patient's chest pain. Conclusion Thymomas should be included in the differential diagnosis of mediastinal tumors with necrosis that spontaneously regress, and surgical resection is required despite such regression

おはなしレストランの現在 : 2023年度活動報告

departmental bulletin pape

Pleomorphic adenoma of the trachea: A case report

Introduction and importance Although pleomorphic adenoma is the most common type of parotid gland tumor, its occurrence in the trachea is rare. Here, we describe a successfully resected pleomorphic adenoma of the trachea in a woman with severe respiratory failure that had been preoperatively misdiagnosed as asthma. Case presentation A 69-year-old woman presented to the emergency department with symptoms of worsening dyspnea and subsequent loss of consciousness. She had a history of progressively worsening wheezing and stridor over the course of 2-years and had been diagnosed with asthma. Arterial blood gas sample analysis indicated type II respiratory failure. A chest computed tomographic scan revealed a tumor in the trachea, which was almost completely obstructing the lower tracheal lumen. The tumor was located just above the carina. To alleviate airway constriction and achieve complete resection, carinal resection with reconstruction was performed. The postoperative diagnosis was pleomorphic adenoma of the trachea. Clinical discussion Pleomorphic adenoma is a rare tracheal tumor that may present with obstructive airway symptoms that mimic asthma. Conclusion Tracheal tumors should be considered in patients with chronic respiratory symptoms that do not improve with medication

Extralobar pulmonary sequestration presenting with torsion in an elderly patient: A case report

Extralobar pulmonary sequestration with torsion is an exceptionally rare condition, especially in adults, and can present with nonspecific symptoms such as abdominal pain, making diagnosis challenging. Timely recognition is critical, as delayed treatment may lead to infarction and serious complications. This report describes the case of a patient with extralobar pulmonary sequestration who presented with abdominal pain./An 83-year-old healthy female presented with increasing severe abdominal pain and mild fever that had developed for the past three weeks. Chest and abdominal computed tomography revealed a non-enhancing mass in the right posterior paravertebral area, with mild pleural effusion. Video-assisted thoracoscopic surgery to establish a definitive diagnosis revealed a yellow-whitish ovoid mass with congestion and necrosis, accompanied by bloody pleural effusion. The mass was connected to the mediastinum via a twisted feeding vessel. The final diagnosis was consistent with extralobar pulmonary sequestration with torsion and infarction. The patient's symptoms were relieved immediately after surgery./Extralobar pulmonary sequestration with torsion is rare in adults. Abdominal pain is the hallmark symptom of this condition. The lack of contrast enhancement in the lesion with no visible feeding vascular pedicle or pleural effusion is imaging signs of pulmonary sequestration torsion, and surgical resection is the standard treatment./This case highlights the importance of considering pulmonary sequestration in the differential diagnosis of unexplained abdominal pain with posterior mediastinal masses, underscoring the value of surgical exploration for diagnosis and treatment

Treatment strategy for septic arthritis of the sternoclavicular joint with osteomyelitis, large abscesses, and mediastinitis: A case report

Introduction and importance Septic arthritis of the sternoclavicular joint (SASCJ) accounts for <1 % of all joint infections. Owing to the limited literature on the disease, there is no consensus on the general treatment for SASCJ. Here, we report a case of SASCJ complicated by osteomyelitis, mediastinitis, infectious myositis, and cervical and chest wall abscesses that required radical sternoclavicular joint resection and reconstruction using the greater omental flap. In this report, we discuss the treatment strategy for advanced SASCJ cases. Case presentation A 65-year-old man was diagnosed with SASCJ relapse after the failure of antibiotic therapy alone, combined with osteomyelitis, mediastinitis, infectious myositis, and cervical and chest wall abscesses. A radical sternoclavicular joint resection was performed. After negative-pressure wound therapy, serial re-debridement was performed. The greater omental flap was transported into a deep, large residual space. The patient has been relapse-free for 1 year. Clinical discussion Radical resection of the entire sternoclavicular joint should be the preferred management strategy for patients with sternoclavicular joint infections, especially in cases of osteomyelitis. Although the pectoralis major flap is typically the first choice to cover the defect, we used the omental flap because the locoregional flaps were not large enough to reconstruct the defect. Conclusion The greater omental flap is an advantageous alternative when there is a need to provide coverage for large defects in cases of SASCJ

Radiological features and diagnostic pitfalls of idiopathic azygos vein aneurysm: A case report

INTRODUCTION AND IMPORTANCE We present a case of idiopathic azygos vein aneurysm (AVA) and describe its radiological features. Clinicians should be aware of the imaging findings to avoid the risk of bleeding caused by biopsy. CASE PRESENTATION An asymptomatic 46-year-old woman was found to have an abnormal shadow on a chest computed tomography (CT) scan during a medical checkup. Plain CT revealed a well-defined, homogeneous mass on the posterior side of the right main bronchus. Contrast-enhanced CT revealed a mass with marked enhancement pointing to a vascular structure. Three-dimensional reconstruction showed that the mass was connected to the azygos arch, and inflow to and outflow from the azygos vein was detected. Subsequently, video-assisted thoracic surgery was performed. CLINICAL DISCUSSION Patients with idiopathic AVA often present with accidental findings of a mediastinal or lung mass on a chest radiographs or CT scans, which can be mistakenly diagnosed as a paratracheal tumor, bronchial cyst, or posterior mediastinal tumor. Needle biopsy should be avoided due to the risk of massive bleeding. During the evaluation of thoracic malignancies, AVAs should be considered in the differential diagnosis, especially in area of the right tracheobronchial angle or right upper or posterior mediastinum. Three-dimensional reconstruction can help surgeons to clarify the disease diagnosis. CONCLUSION Imaging findings combined with enhanced CT and three-dimensional reconstruction are useful for diagnosing AVAs.Citation: Mayu Inomata, Fumiya Kawano, Ryusei Yamada, Ryo Maeda, Radiological features and diagnostic pitfalls of idiopathic azygos vein aneurysm: A case report, International Journal of Surgery Case Reports, 122, 110094-110094, 2024-09, https://doi.org/10.1016/j.ijscr.2024.11009

Radiological features of intrathoracic chronic expanding hematoma: A case report

Introduction and importance We present a relatively rare case of intrathoracic chronic expanding hematoma (CEH) after thoracic surgery for lung cancer. CEH is often difficult to distinguish from malignant tumors because of its large size and slow progressive enlargement. In this report, we describe the radiological features of CEH in detail. Case presentation A 67-year-old man who underwent a left upper lobectomy for lung cancer at 46 years of age presented with hemosputum. Computed tomography revealed a large mass with central low attenuation. Calcification was detected in peripheral lesions of the mass. T2-weighted magnetic resonance imaging (MRI) revealed a mass with mixed low and high signal intensities. Based on the clinical course, the patient was diagnosed with an intrathoracic CEH. A left posterolateral thoracotomy was performed with the patient in the lateral position, and a mass encased in a tough capsule was resected. The postoperative histopathological findings were consistent with CEH. Clinical discussion CT of intrathoracic CEH shows a lesion with heterogeneous content, a thick wall, and calcifications. However, differentiation from malignant tumors is difficult using CT alone. MRI is a good diagnostic modality for CEH and often shows a mixture of low- and high-intensity areas on T2-weighted images. In addition, the patient's medical history is important because most cases of CEH have a history of trauma or surgery. Conclusion To diagnose intrathoracic CEH, it is essential to consider the patient's clinical course and MRI findings.Citation: Inomata M, Kuroki S, Nakada H, Kawano F, Maeda R. Radiological features of intrathoracic chronic expanding hematoma: A case report. Int J Surg Case Rep. 2023 Sep;110:108767. doi: 10.1016/j.ijscr.2023.108767. Epub 2023 Aug 29. PMID: 37683511; PMCID: PMC10510069