• 대한수학회보
• /
• 제47권5호
• /
• pp.961-971
• /
• 2010

As an application of 'reverse engineering' technique introduced by R. Fintushel, D. Park and R. Stern [9], we present a simple way to construct an infinite family of exotic (2n+2l-1)$\mathbb{CP}^2#$(2n+4l-1)$\overline{\mathbb{CP}}^2$'s for all $n\;{\geq}\;0$, $l\;{\geq}\;1$.

• 대한수학회지
• /
• 제47권1호
• /
• pp.123-134
• /
• 2010

The aim of this paper is to provide a proof for a version of the Morse inequalities for manifolds with boundary. Our main results are certainly known to the experts on Morse theory, nevertheless it seems necessary to write down a complete proof for it. Our proof is analytic and is based on the J. Roe account of Witten's approach to Morse Theory.

• 대한수학회지
• /
• 제47권5호
• /
• pp.925-934
• /
• 2010

A crystallization of a closed connected PL manifold M is a special edge-colored graph representing M via a contracted triangulation. The regular genus of M is the minimum genus of a closed connected surface into which a crystallization of M regularly embeds. We disprove a conjecture on the regular genus of $\mathbb{S}\;{\times}\;\mathbb{S}^n$, $n\;{\geq}\;3$, stated in [J. Korean Math. Soc. 41 (2004), no. 3, p. 420].

• 대한화학회지
• /
• 제47권6호
• /
• pp.671-674
• /
• 2003

• Journal of Korean Neurosurgical Society
• /
• 제47권2호
• /
• pp.158-160
• /
• 2010

The authors present a case of multiple intracranial calcifications after the procedure of external ventricular drain placement in a 50-year-old man with pericallosal artery aneurysm. We believe that calcifications formed dust that had fallen into the track during the external ventricular drain procedure. The clinical features and radiological findings are presented with review of literature.

• 식품과학과 산업
• /
• 제47권2호
• /
• pp.54-60
• /
• 2014

• Journal of Korean Neurosurgical Society
• /
• 제47권2호
• /
• pp.134-136
• /
• 2010

Bow hunter's stroke is a rare symptomatic vertebrobasilar insufficiency in which vertebral artery (VA) is mechanically occluded during head rotation. Various pathologic conditions have been reported as causes of bow hunter's stroke. However, bow hunter's stroke caused by facet hypertrophy of C1-2 has not been reported. A 71-year-old woman presented with symptoms of vertebrobasilar insufficiency. Spine computed tomography showed massive facet hypertrophy on the left side of C1-2 level. A VA angiogram with her head rotated to the right revealed significant stenosis of left VA. C1-2 posterior fixation and fusion was performed to prevent serious neurologic deficit from vertebrobasilar stroke.

• 천문학회보
• /
• 제32권2호
• /
• pp.47.2-47.2
• /
• 2007

• 한국재료학회:학술대회논문집
• /
• 한국재료학회 2007년도 추계학술발표대회 및
• /
• pp.47.2-47.2
• /
• 2007

• 한국식물병리학회:학술대회논문집
• /
• 한국식물병리학회 2000년도 추계 학술발표회
• /
• pp.47.2-47
• /
• 2000