http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Complete characterization of quantum-limited timing jitter in passively mode-locked fiber lasers.
Cox, Jonathan A,Nejadmalayeri, Amir H,Kim, Jungwon,Kä,rtner, Franz X Optical Society of America 2010 Optics letters Vol.35 No.20
<P>We characterize the timing jitter of passively mode-locked, femtosecond, erbium fiber lasers with unprecedented resolution, enabling the observation of quantum-origin timing jitter up to the Nyquist frequency. For a pair of nearly identical 79.4MHz dispersion-managed lasers with an output pulse energy of 450pJ, the high-frequency jitter was found to be 2.6fs [10kHz, 39.7MHz]. The results agree well with theoretical noise models over more than three decades, extending to the Nyquist frequency. It is also found that unexpected noise may occur if care is not taken in optimizing the mode-locked state.</P>
Cox John C.,Coulter Alan R. 대한수의사회 1997 대한수의사회지 Vol.33 No.11
금세기초부터 갖가지 물질이 vaccine에 가해졌으며, 일정한 처방이 vaccine을 더욱 유효하게 만들기 위해서 고안되고 있다. 많은 선택권에도 불구하고 다만 aluminium 염(鹽)만이 사람용 vaccine adjuvant(면역응답강화물질)로 받아들여지고 있으며, 수의(동물)용 vaccine도 크게 aluminium 염의 사용에 의존하고 있다. 현재 많은 새로운 vaccine들이 개발되고 있으나 vaccine당 구성분의 수를 증가시키고 또한 vaccine 과정에서 요구되는 dose 수를 줄이는 vaccine 접종 schedule을 단순화시키고져 하는 욕구가 대두되고 있다. 이제 더욱 유효한 adjuvant들이 이 욕구를 성취시키기 위해서 요구되는 것이다.
Implications of diphoton searches for a radion in the bulk-Higgs scenario
Cox, Peter,Medina, Anibal D.,Ray, Tirtha Sankar,Spray, Andrew World Scientific Publishing Company 2017 International Journal of Modern Physics A Vol.32 No.4
<P>In this work, we point out that the apparent diphoton excess initially presented by the ATLAS and CMS collaborations could have originated from a radion in the bulk Higgs scenario within a warped extra dimension. In this scenario, the couplings of the radion to massive gauge bosons are suppressed, allowing it to evade existing searches. In the presence of mixing with the Higgs, due to the strong constraints from diboson searches, only points near what we denominate the alignment region were able to explain the diphoton signal and evade other experimental constraints. In light of the new measurements presented at ICHEP 2016 by both LHC collaborations, which do not confirm the initial diphoton excess, we study the current and future collider constraints on a radion within the bulk-Higgs scenario. We find that searches in the diphoton channel provide the most powerful probe of this scenario and already exclude large regions of parameter space, particularly for smaller warp factors. The radion has a sizeable branching ratio into top pairs and this channel may also give competitive constraints in the future. Finally, di-Higgs searches can provide a complementary probe in the case of nonzero radion-Higgs mixing but strong alignment.</P>
Strain control of superlattice implies weak charge-lattice coupling inLa0.5Ca0.5MnO3
Cox, S.,Rosten, E.,Chapman, J. C.,Kos, S.,Calderó,n, M. J.,Kang, D.-J.,Littlewood, P. B.,Midgley, P. A.,Mathur, N. D. American Physical Society 2006 Physical review. B, Condensed matter and materials Vol.73 No.13
Cox, Simon R.,Valdé,s Herná,ndez, Maria del Carmen,Kim, Jaeil,Royle, Natalie A.,MacPherson, Sarah E.,Ferguson, Karen J.,Muñ,oz Maniega, Susana,Anblagan, Devasuda,Aribisala, Benjamin Pergamon Press 2017 Psychoneuroendocrinology Vol.78 No.-
<▼1><P><B>Highlights</B></P><P>•<P>Elevated cortisol does not appear to be associated with regional variations in hippocampal shape.</P>•<P>Novel shape morphology analysis applied to study possible effect of cortisol on hippocampus.</P>•<P>Mean diffusivity in hippocampus is associated with reactive cortisol slope in older men.</P></P></▼1><▼2><P>High, unabated glucocorticoid (GC) levels are thought to selectively damage certain tissue types. The hippocampus is thought to be particularly susceptible to such effects, and though findings from animal models and human patients provide some support for this hypothesis, evidence for associations between elevated GCs and lower hippocampal volumes in older age (when GC levels are at greater risk of dysregulation) is inconclusive. To address the possibility that the effects of GCs in non-pathological ageing may be too subtle for gross volumetry to reliably detect, we analyse associations between salivary cortisol (diurnal and reactive measures), hippocampal morphology and diffusion characteristics in 88 males, aged ∼73 years. However, our results provide only weak support for this hypothesis. Though nominally significant peaks in morphology were found in both hippocampi across all salivary cortisol measures (standardised <I>β</I> magnitudes < 0.518, <I>p<SUB>uncorrected</SUB></I> > 0.0000003), associations were both positive and negative, and none survived false discovery rate correction. We found one single significant association (out of 12 comparisons) between a general measure of hippocampal diffusion and reactive cortisol slope (<I>β</I> <I>=</I> 0.290, <I>p</I> = 0.008) which appeared to be driven predominantly by mean diffusivity but did not survive correction for multiple testing. The current data therefore do not clearly support the hypothesis that elevated cortisol levels are associated with subtle variations in hippocampal shape or microstructure in non-pathological older age.</P></▼2>
A common coding variant in CASP8 is associated with breast cancer risk
Cox, Angela,Dunning, Alison M,Garcia-Closas, Montserrat,Balasubramanian, Sabapathy,Reed, Malcolm W R,Pooley, Karen A,Scollen, Serena,Baynes, Caroline,Ponder, Bruce A J,Chanock, Stephen,Lissowska, Jola Nature Pub. Co 2007 Nature genetics Vol.39 No.3
The Breast Cancer Association Consortium (BCAC) has been established to conduct combined case-control analyses with augmented statistical power to try to confirm putative genetic associations with breast cancer. We genotyped nine SNPs for which there was some prior evidence of an association with breast cancer: CASP8 D302H (rs1045485), IGFBP3 −202 C → A (rs2854744), SOD2 V16A (rs1799725), TGFB1 L10P (rs1982073), ATM S49C (rs1800054), ADH1B 3′ UTR A → G (rs1042026), CDKN1A S31R (rs1801270), ICAM5 V301I (rs1056538) and NUMA1 A794G (rs3750913). We included data from 9–15 studies, comprising 11,391–18,290 cases and 14,753–22,670 controls. We found evidence of an association with breast cancer for CASP8 D302H (with odds ratios (OR) of 0.89 (95% confidence interval (c.i.): 0.85–0.94) and 0.74 (95% c.i.: 0.62–0.87) for heterozygotes and rare homozygotes, respectively, compared with common homozygotes; P<SUB>trend</SUB> = 1.1 × 10<SUP>−7</SUP>) and weaker evidence for TGFB1 L10P (OR = 1.07 (95% c.i.: 1.02–1.13) and 1.16 (95% c.i.: 1.08–1.25), respectively; P<SUB>trend</SUB> = 2.8 × 10<SUP>−5</SUP>). These results demonstrate that common breast cancer susceptibility alleles with small effects on risk can be identified, given sufficiently powerful studies.
Geometry: Do High School Mathematics Teachers really Need it?
Cox, Wesley Korean Society of Mathematical Education 2022 수학교육연구 Vol.25 No.3
A debate about the importance of geometry courses has existed for years. The questions have revolved around its significance to students and teachers alike. This study looks to determine whether a teacher taking a college-level geometry course has a positive relationship with their students' algebraic reasoning skills. Using data from the High School Longitudinal Study 2009 (HSLS09: Ingels et al., 2011, 2014), it was determined that 9th-grade teachers who took a college-level geometry course had a significant positive association with their students' 11th-grade algebraic reasoning scores. This study suggests that teachers who take geometry during college have a lasting effect on their students. The implications of these findings and how they may affect higher education are discussed.