http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Langston, Charles A. (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
-
-
Creating Free Adults out of Children: An Examination of the Wholistic Education
LANGSTON EMILY 숙명여자대학교 창의융합연구소 2024 창의융합연구 Vol.4 No.Special
This paper contains a description and exploration of a radical, ongoing, educational experiment. The New Program of St. John’s College was established in Annapolis, Maryland, in 1937. Almost 90 years later, it continues much as it was developed in the early 20th century and has expanded to a second campus in Santa Fe, New Mexico. It is an undergraduate program without departments or academic disciplines, conducted entirely through the discussion of classic texts. All students take the same classes. All students and all faculty members are required to study every subject area, from philosophy and literature to mathematics and the natural sciences. The paper makes the case that this approach is not “interdisciplinary” so much as “pre-disciplinary” – based on an earlier and more wholistic view of knowledge. It combines elements of the older tradition of the liberal arts with the secular orientation and emphasis on the unfettered pursuit of knowledge characteristic of the modern research university. The paper explains how this unique institution fits into the landscape of American higher education, comparing it to other institutions called “liberal arts colleges,” to the well-known core programs at universities like Columbia and the University of Chicago, and to American colleges of the late 19th century. Paradoxically, this approach has rendered the college not anachronistic but (as one commentator described it), “future proof,” as it frees students from preconceptions about the fragmentation of knowledge and encourages collaborative inquiry bringing together technical and humanistic thinking around the most pressing human problems.
-
-
Seth Ahlquist,Howard Y. Park,Benjamin Kelley,Langston Holly,Ayra N. Shamie,Don Y. Park 대한척추신경외과학회 2020 Neurospine Vol.17 No.2
Objective: Current guidelines recommend initiation of venous thromboembolism (VTE) chemoprophylaxis within 72 hours of spinal cord injury (SCI). This study investigated the safety and efficacy of chemoprophylaxis within 24 hours of surgery for SCI. Methods: A retrospective review of 97 consecutive patients who underwent surgery for acute traumatic SCI at a single level 1 trauma center from 2013–2018 was performed. VTE/ postoperative bleeding rates during hospitalization, demographics, medical/surgical complications, drain output, length of stay, and disposition were obtained. Chi–square with odds ratios (ORs), 1-way analysis of variance, and logistic regression were performed to establish significant differences between groups. Results: Seventy–nine patients were included, 49 received chemoprophylaxis within 24 hours and 20 within 24–72 hours. Cohort characteristics included an average age of 51.8 years, 77.2% male, 62.0% cervical, and 35.4% thoracic SCIs. Using the American Spinal Injury Association Impairment Scale (AIS), 39.2% were AIS-A injuries, 19.0% AIS-B, 25.3% AIS-C, and 16.5% AIS-D. Unfractionated heparin was administered in 88.6% of patients and 11.4% received low molecular weight heparin. Chemoprophylaxis within 24 hours of surgery was associated with a lower rate of VTE (6.1% vs. 35.0%; OR, 0.121; 95% confidence interval [CI], 0.027–0.535) and deep vein thrombosis (4.1% vs. 30.0%; OR, 0.099; 95% CI, 0.018–0.548) versus 24–72 hours. Pulmonary embolism rates were not significantly different (6.1% vs. 5.0%, p = 1.0). There were no postoperative bleeding complications and no significant difference in drain output between cohorts. Conclusion: Early VTE chemoprophylaxis is effective with lower VTE rates when initiated within 24 hours of surgery for SCI and is safe with no observed postoperative bleeding complications.
-
Graw, Jordan H.,Hansen, Samantha E.,Langston, Charles A.,Young, Brian A.,Mostafanejad, Akram,Park, Yongcheol Seismological Society of America 2017 Bulletin of the Seismological Society of America Vol.107 No.2
<P>Standard <I>P</I>‐wave receiver function analyses in polar environments can be difficult because reverberations in thick ice coverage often mask important <I>P</I>‐to‐<I>S</I> conversions from deeper subsurface structure and increase ambient noise levels, thereby significantly decreasing the signal‐to‐noise ratio of the data. In this study, we present an alternative approach to image the subsurface structure beneath ice sheets. We utilize downward continuation and wavefield decomposition of the <I>P</I>‐wave response to obtain the up‐ and downgoing <I>P</I> and <I>S</I> wavefield potentials, which removes the effects of the ice sheet. The upgoing <I>P</I> wavefield, computed from decomposition of the waveform at a reference depth, is capable of indicating ice layer thickness. This simple step removes the necessity of modeling ice layer effects during iterative inversions and hastens the overall velocity analysis needed for downward continuation. The upgoing <I>S</I> wave is employed and modeled using standard inversion techniques as is done with receiver functions at the free surface using a least‐squares approximation. To illustrate our proof of concept, data from several Antarctic networks are examined, and our results are compared with those from previous investigations using <I>P</I>‐ and <I>S</I>‐wave receiver functions as well as body‐ and surface‐wave tomographic analyses. We demonstrate how our approach satisfactorily removes the ice layer, thus creating a dataset that can be modeled for crustal and upper‐mantle structure. Solution models indicate crustal thicknesses as well as average crustal and upper‐mantle shear‐wave velocities.</P><P><I>Electronic Supplement:</I>Figure of measured data, the vertical‐component stack used in deconvolution, and the resultant vertical, radial, and tangential transfer functions.</P>
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
