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Showing 25 to 36 of 31071 entries
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Alignment between the physics content standard and the standardized test: A comparison among the United States‐New York State, Singapore, and China‐Jiangsu

science curriculum

Fulmer G, Kim B, Liang LL, Liu X, Zhang B.
GSID: f7ThjdG3phAJ
X Liu, B Zhang, LL Liang, G Fulmer, B Kim… - Science …, 2009 - Wiley Online Library

Alignment between content standards and standardized tests is a significant issue to society, science pedagogy, and test validation. To better understand the issues related to alignment …

Three distinct equilibrium states via self-assembly: simple access to a supramolecular ion-controlled NAND logic gate.

Journal of the American Chemical Society

Kim DS, Lynch VM, Park JS, Sessler JL.
PMID: 24011216
J Am Chem Soc. 2013 Oct 02;135(39):14889-94. doi: 10.1021/ja4080198. Epub 2013 Sep 19.

During the past several decades, considerable effort has focused on self-assembled systems. However, most work has been directed toward understanding the equilibrium between two major chemical entities, namely the dissociated components and the corresponding associated complex. While there are...

Influence of wetting on morphology and core content in electrospun core-sheath fibers.

ACS applied materials & interfaces

Kim DK, Lagerwall JP.
PMID: 25170675
ACS Appl Mater Interfaces. 2014 Sep 24;6(18):16441-7. doi: 10.1021/am504961k. Epub 2014 Sep 11.

Coaxial electrospinning allows easy and cost-effective realization of composite fibers at the nano- and microscales. Different multifunctional materials can be incorporated with distinct localization to specific regimes of the fiber cross section and extended internal interfaces. However, the final...

A case of small bowel obstruction due to a paracecal hernia.

Journal of the Korean Society of Coloproctology

Jang EJ, Cho SH, Kim DD.
PMID: 21431096
J Korean Soc Coloproctol. 2011 Feb;27(1):41-3. doi: 10.3393/jksc.2011.27.1.41. Epub 2011 Feb 28.

Internal hernias are rare causes of small bowel obstruction, and one such internal hernia is the paracecal hernia. We report a case of a small bowel obstruction related to a paracecal hernia in which a preoperative diagnosis was made...

Protective effect of Korean Red Ginseng against glucocorticoid-induced osteoporosis in vitro and in vivo.

Journal of ginseng research

Kim J, Lee H, Kang KS, Chun KH, Hwang GS.
PMID: 25535476
J Ginseng Res. 2015 Jan;39(1):46-53. doi: 10.1016/j.jgr.2014.06.001. Epub 2014 Jul 09.

BACKGROUND: Glucocorticoids (GCs) are commonly used in many chemotherapeutic protocols and play an important role in the normal regulation of bone remodeling. However, the prolonged use of GCs results in osteoporosis, which is partially due to apoptosis of osteoblasts...

Enhanced performance of flexible nanocrystalline silicon thin-film solar cells using seed layers with high hydrogen dilution.

Journal of nanoscience and nanotechnology

Lee JE, Kim D, Yoon KH, Cho JS.
PMID: 24266159
J Nanosci Nanotechnol. 2013 Dec;13(12):7891-4. doi: 10.1166/jnn.2013.8149.

Flexible hydrogenated nanocrystalline (nc-Si:H) thin-film solar cells were prepared by very high frequency plasma enhanced chemical vapor deposition (VHF-PECVD), and the effect of highly crystalline intrinsic Si seed layers at the initial growth stage of i nc-Si:H absorbers on...

Delayed improvement after endoscopic carpal tunnel release.

Journal of Korean Neurosurgical Society

Kim DH, Cho BM, Oh SM, Park DS, Park SH.
PMID: 25535515
J Korean Neurosurg Soc. 2014 Nov;56(5):390-4. doi: 10.3340/jkns.2014.56.5.390. Epub 2014 Nov 30.

OBJECTIVE: In most patients with carpal tunnel syndrome (CTS), pain and/or paresthesia disappeared or decreased in a month after endoscopic carpal tunnel release (ECTR). However, subpopulation of patients showed delayed improvement following ECTR. We analyzed the delayed improvement hands...

Free-standing nitrogen-doped reduced graphene oxide anode for lithium-ion batteries.

Journal of nanoscience and nanotechnology

Park HH, Choi Y, Kim B, Yun YS, Jin HJ.
PMID: 24266170
J Nanosci Nanotechnol. 2013 Dec;13(12):7950-4. doi: 10.1166/jnn.2013.8108.

Graphenes have been considered suitable candidate materials for electrodes of energy storage devices such as lithium-ion batteries (LIBs) because of their outstanding mechanical, thermal and electrical properties. However, there are problems when using these carbon materials for electrodes because...

Stability of pentacene thin film transistors under simultaneous mechanical bending and heating.

Journal of nanoscience and nanotechnology

Cho SW, Kim DI, Hwang BU, Lee NE.
PMID: 24266180
J Nanosci Nanotechnol. 2013 Dec;13(12):8002-6. doi: 10.1166/jnn.2013.8169.

During the operational service of flexible electronic systems, component devices are subject to not only mechanical deformation but also environmental stimulation such as temperature and humidity. Therefore, the stability of flexible devices under simultaneous loading of multi-variable environmental factors...

Visual montioring of large plasma.

Journal of nanoscience and nanotechnology

Kim B, Lee J.
PMID: 24266193
J Nanosci Nanotechnol. 2013 Dec;13(12):8070-3. doi: 10.1166/jnn.2013.8190.

A visual system for monitoring transient plasma is presented. Dark particle distributions caught by the system proved effective for monitoring a large plasma space. A distrribution of electron orbits revealed that dark and less dark partices match ions and...

Realizing broadbands of strong nonlinear coupling in nanoelectromechanical electron shuttles.

Physical review letters

Kim C, Prada M, Platero G, Blick RH.
PMID: 24266485
Phys Rev Lett. 2013 Nov 08;111(19):197202. doi: 10.1103/PhysRevLett.111.197202. Epub 2013 Nov 05.

We demonstrate the transition of a coupled electron shuttle from a stable to a strongly nonlinear response at room temperature. Within this transition we observe the coupled shuttle's response to change from Coulomb controlled to conventional field emission. This...

Clinical and Microbiologic Characteristics of Clostridium difficile Infection Caused by Binary Toxin Producing Strain in Korea.

Infection & chemotherapy

Kim J, Seo MR, Kang JO, Choi TY, Pai H.
PMID: 24265965
Infect Chemother. 2013 Jun;45(2):175-83. doi: 10.3947/ic.2013.45.2.175. Epub 2013 Jun 26.

BACKGROUND: Binary toxin-producing Clostridium difficile infections (CDI) are known to be more severe and to cause higher case fatality rates than those by binary toxin-negative isolates. There has been few data of binary toxin-producing CDI in Korea. Objective of...

Showing 25 to 36 of 31071 entries