敎師의 質問活用實態와 改善에 관한 硏究

卞烘圭,金桂旬 全北大學校 敎育大學院 1992 敎育論叢 Vol.12 No.-

This study was attempted to survey current practices of teachers' questioning, to identify problems and issues of their questions and questioning, and to derive possible suggestions for establishing improvement strategies of their questioning skills in the classroom. The questionnaire method was used as the tool for this study. The question items for collecting data were provided based on background literature and studies previously done related to classroom questions and questioning and they were categorized into three areas: teacher questioning, student questioning, and improvement strategies of questioning. The data collected from 373 teachers from both primary and secondary school teachers in three local areas : large, middle-size, and small cities in the country. Teacher responses were analyzed by variables of sex, school levels, period of teaching experiences, size of working cities, and overall measures. The statistics used for this study were percentages in each categories and chi square tests for identifying response differences between or among the variables. The study results were summarized as follows : 1. Most teachers recognized the critical importance of their questions and questioning regardless of their sex, length of teaching experiences, and sizes of working areas. 2. More than 30 percent of teachers responded that they usually raise questions more than ten times in a class hour. The reason of low frequencies of questioning was explained as that they were not to be behind in teaching subject matters within a schedule of academic year, while that of high frequencies was for maxmizing the effectiveness of student learning. 3. Teachers responded highly on the item that they were trying to ask questions on both recalling and applying subject contents. This response was more strongly revealed by those who had longer period of teaching experiences than those who had less longer experiences. 4. In relation to teacher reactions on students' difficulties in answering their questions, teachers were mostly responded to rephrase the first question in easier words and expressions, and this tendency was more strongly revealed among female teachers than among male ones. For those who answered correctly and appropriately, teachers have usually given their high reinforcements and rewards and this tendency was stronger among primary school teachers than among secondary teachers, and stronger among those who had longer teaching experiences than among those who had less longer experiences. 5. The practices of student indication were flexible and generally teachers were followed in two ways dependent upon circumstances : 'teacher questioning first - then student indication' and 'student indication - then teacher questioning'. The primary school teachers were tended to indicate those who want to answer, while the secondary teachers did it without following any special rules. 6. Teachers were generally welcoming to active student questioning and were also trying to instruct active questioning skills to students. In case of confrontation with difficulties in answering for student questions, teachers responded as that they try to find out answers in cooperation with students. 7. Teachers' perception on the rate of active student questioning was recognized to be very low because students had been given very low chances in raising questions. The most important thing in training active student questioning was indicated as the teachers' positive attitude to welcome student questions. 8. Teachers were usually trying to make their efforts to improve their questioning skills and they recommended the discussion method as the best one to train student questioning in relation to encouraging their higher - order thinking. They were almost not intended to reflect and analyze their questions and questioning, but believed that they have fairly good abilities to raise different cognitive levels of questions in order to foster relevant thinking.

A pulsating protrusion on temporal area after punch biopsy

( Ge O Han ),( Jae Woo Ahn ),( Jiehyun Jeon ),( Hae Jun Song ),( Chil Hwan Oh ),( Soo Hong Seo ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1

A 62 year old man visited us for pulsating protrusion with 1x1.1cm size on R. temporal area. He had taken 4mmpunch biopsy on same area under the suspicion of verruca vulgaris 2 weeks ago. In past medical history, he was being treated with Rt. cerebral infarction with warfarin and aspirin. Hematoma was suspected and we decided to wait until it subsides. However, the lesion persisted after 4months, and we performed ultrasonography. It showed mixed-echoic subcutaneous lumen with fistula. Pseudoaneurysm on superficial temporal artery branch was clinically suspected and we planned to incise and ligate the artery. However, the patient wanted close observation and it became pulseless and began to flatten after 5months. The lesion spontaneously subsided and nofurther recurrence is seen to this day. Although uncommon, vascular complications may occur after punch biopsy. These include post-biopsy bleeding, hematoma and rarely pseudoaneurysm. Pseudoaneurysm is well-known sequela of iatrogenic injury and consists of an organized hematoma that communicates with the injured artery via a sinus tract. Suture ligation of the implicated artery is considered the treatment of choice. Here, we report a case of pseudoaneurysm occurred after punch biopsy on forehead with spontaneous remission for educational meaning, and dermatologists should keep in mind that this rare complication can be encountered even by small punch biopsy.

External Counterpulsation Reduces Beat-to-Beat Blood Pressure Variability When Augmenting Blood Pressure and Cerebral Blood Flow in Ischemic Stroke

Ge Tian,Li Xiong,Wenhua Lin,Jinghao Han,Xiang-Yan Chen,Thomas Wai Hong Leung,Yannie Oi Yan Soo,Lawrence Ka Sing Wong 대한신경과학회 2016 Journal of Clinical Neurology Vol.12 No.3

Background and PurposezzExternal counterpulsation (ECP) is a noninvasive method used to enhance cerebral perfusion by elevating the blood pressure in ischemic stroke. However, the response of the beat-to-beat blood pressure variability (BPV) in ischemic stroke patients during ECP remains unknown. MethodszzWe enrolled recent ischemic stroke patients and healthy controls. Changes in the blood fow velocities in bilateral middle cerebral arteries and the continuous beat-to-beat blood pressure before, during, and afer ECP were monitored. Power spectral analysis revealed that the BPV included oscillations at very low frequency (VLF; <0.04 Hz), low frequency (LF; 0.04– 0.15 Hz), and high frequency (HF; 0.15–0.40 Hz), and the total power spectral density (TP; <0.40 Hz) and LF/HF ratio were calculated. ResultszzWe found that ECP signifcantly increased the systolic and diastolic blood pressures in both stroke patients and controls. ECP decreased markedly the systolic and diastolic BPVs at VLF and LF and the TP, and the diastolic BPV at HF when compared with baseline. Te decreases in diastolic and systolic BPV reached 37.56% and 23.20%, respectively, at VLF, 21.15% and 12.19% at LF, 8.76% and 16.59% at HF, and 31.92% and 23.62% for the total TP in stroke patients, which did not difer from those in healthy controls. Te change in fow velocity on the contralateral side was positively correlated with the total TP systolic BPV change induced by ECP (r=0.312, p=0.035). ConclusionszzECP reduces the beat-to-beat BPV when increasing the blood pressure and cerebral blood fow velocity in ischemic stroke patients. ECP might be able to improve the clinical outcome by decreasing the beat-to-beat BPV in stroke patients, and this should be explored further in future studies.

The alum-processing mechanism attenuating toxicity of Araceae Pinellia ternata and Pinellia pedatisecta

Hongli Yu,Hao Wu,Yaozong Pan,Xiuyun Ge,Qian Zhang,Fagen Zhu,Baochang Cai 대한약학회 2015 Archives of Pharmacal Research Vol.38 No.10

The present study aimed at investigating thealum-processing mechanism attenuating toxicity of AraceaePinellia ternata and Pinellia pedatisecta. Animalretroperitoneal inflammatory model in vivo andmacrophagocyte release inflammatory factor model in vitrowere used to detect the effect of alum processing onraphides and lectin. Scanning electron microscopy wasused to observe the change in raphides during processing;HPLC method was used to determine the correlation betweenthe dissolution and corrosion of raphides and ion inthe alum solution; 27Al-NMR technology was used to detectthe relationship between aluminum oxalate complexformation and the dissolved and corrosion of raphides. Thechange in protein peptide sequence of lectin during theprocessing of alum solution was determined by ShotgunLC–MS assay. Raphides induced severe rabbit conjunctivaledema and an intraperitoneal injection of lectin increasedPGE2 and protein in mice peritoneal exudate, whiledecreased after treatment with alum solution processing. During the processing raphides was dissolved and corroded,then its structure was damaged. Raphides was soaked inthe alum solution and significantly decreased the oxalatecontent, and the effect was related with Al3? in the alum. Al3? in the alum combined with C2O42- of raphides into astable complex compound promoted the dissolution ofcalcium oxalate. Raphides soaked in the alum made lectinproteins dissolve, whereas protein peptide sequence oflectin was changed and the protein structure was damaged. Conclusion: Alum solution could decrease the toxicity ofP. ternata (Thunb.) Breit. and P. pedatisecta Schott. Sinceit made a special crystal structure of raphides damage andthe protein of lectin dissolve. The structure of toxic substancessignificantly changed, which decreased the inflammatoryeffect.

Breeding of L(+)-Lactic Acid Producing Strain by Low-Energy Ion Implantation

( Ge Chun Mei ),( Shao Bin Gu ),( Xiu Hong Zhou ),( Jian Ming Yao ),( Ren Rui Pan ),( Zeng Liang Yu ) 한국미생물생명공학회 2004 Journal of microbiology and biotechnology Vol.14 No.2

Stabilization of chaotic systems under variable sampling and state quantized controller

Ge, Chao,Wang, Hong,Liu, Yajuan,Park, Ju H. North-Holland 2018 Fuzzy sets and systems Vol.344 No.-

<P>This paper investigates the problem of stabilization for chaotic systems based on a T-S fuzzy model under sampled-data control and state quantization. A novel Lyapunov-Krasovskii functional (LKF) is introduced to the sampled-data systems. The benefit of the new approach is that the LKF develops more information about the actual sampling pattern. In addition, some symmetric matrices involved in the LKF are not required to be positive definite. Based on a recently introduced Wirtinger-based integral inequality that has been shown to be less conservative than Jensen's inequality, much less conservative stabilization conditions are obtained to ensure the maximal sampling period. Then, the corresponding sampled-data controllers can be synthesized by solving a set of linear matrix inequalities (LMIs). Finally, an illustrative example is given to show the feasibility and effectiveness of the proposed method. (C) 2017 Elsevier B.V. All rights reserved.</P>

[NS-1] Development of Rice Milk Using Milling Byproducts

Ge-Won Na,Seong-Yong Lee,Mi -Hyun Kim,Soon-Taek Hong 한국식품영양과학회 2006 한국식품영양과학회 학술대회발표집 Vol.2006 No.10

Purification and Characterization of Novel Bifunctional Xylanase, Xyn3, Isolated from Aspergillus niger A-25

( Hong Ge Chen ),( Xin Yan ),( Xin Yu Liu ),( Ming Dao Wang ),( Hui Min Huang ),( Xin Cheng Jia ),( Jin An Wang ) 한국미생물생명공학회 2006 Journal of microbiology and biotechnology Vol.16 No.7

대음순에 발생한 거대 유경 연성섬유종 ( Giant Acrochordon )

손계영 ( Ge Yeong Son ),권혁철 ( Hyuk Cheol Kwon ),김홍용 ( Hong Yong Kim ),김한욱 ( Han Uk Kim ),임철완 ( Chull Wan Ihm ) 대한피부과학회 1996 대한피부과학회지 Vol.34 No.6

Acrochordons are commonly found in middle aged rnan. They are mostly a few millimeters in size. The authors report an exceptionally large(10 * 5cm) one with a 3cm pedicle, which is thought to be the largest one i~w the Korean literature. (Kor J Dermatol 1998;34(6~): 1030-1033)

선단 농포증에서 시작한 전신성 농포성 건선

손계영,성소영,김홍용,김한욱,임철완 의과학연구소 1997 全北醫大論文集 Vol.21 No.1

We report a case of recurrent generalized pustular psoriasis of acute von Zumbuschtype with involvement of the tongue, whose skin lesion stated as acropustulosis 17 years ago. The treatment of the case with etretinate, dapsone and corticosteroid had not been successful. The cyclosporin showed satisfying result for suppression of the disease.