检索结果-南通市图书馆

deep subwavelength nanometric image reconstruction using Fourier domain optical normalization

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Light(Science & Applications) 2016年第1期5卷 632-640页

作者： Jing Qin Richard M Silver bryan M Barnes Hui Zhou Ronald G dixson Mark-Alexander Henn Engineering Physics division Physical Measurement LaboratoryNational Institute of Standards and Technology100 Bureau Dr MS 8212GaithersburgMD 20899-8212USA

Quantitative optical measurements of deep subwavelength,three-dimensional(3d),nanometric structures with sensitivity to sub-nanometer details address a ubiquitous measurement challenge.A Fourier domain normalization approach is used in the Fourier optical imaging code to simulate the full 3d scattered light field of nominally 15 nm-sized structures,accurately replicating the light field as a function of the focus *** the full 3d light field,nanometer scale details such as a 2 nm thin conformal oxide and nanometer topography are rigorously fitted for features less than one-thirtieth of the wavelength in *** densely packed structures are positioned nearly an order of magnitude closer than the conventional Rayleigh resolution limit and can be measured with sub-nanometer parametric *** approach enables a practical measurement sensitivity to size variations of only a few atoms in size using a high-throughput optical configuration with broad application in measuring nanometric structures and nanoelectronic devices.

关键词： computational microscopy light scattering metrology quantitative nanoscale microscopy sub-nanometer uncertainties

I'LL HAVE A NEW BOdY(I'LL HAVE A NEW LIFE)China's Cosmetic Surgery Boom

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

城市漫步（GBA版） 2019年第8期 36-45页

作者： bryan Grogan 不详

The numbers don't lie;the beauty industry in China is rising *** demand for skincare products,makeup and surgical procedures grow,so are local entrepreneurs and corporations striving to nab a chunk of the *** this year,Japanese media outlet Nikkei Asian Review made the statement that beauty has become the new buzzword in the tech world,and it is certainly hard to disagree with that *** other industries,like the manufacturing,automobile and tech sectors,have been slowing,the Chinese beauty market is booming,with a multitude of factors feeding its growth.

关键词： corporation Surgery statement

dual pH and microbial-sensitive galactosylated polymeric nanocargoes for multi-level targeting to combat ulcerative colitis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Pharmaceutical Sciences 2023年第4期18卷 124-141页

作者： Mahira Zeeshan Qurat Ul Ain Benno Weigmann darren Story bryan R.Smith Hussain Ali department of Pharmacy Faculty of Biological SciencesQuaid-i-Azam UniversityIslamabad 45320Pakistan department of Medicine 1 University of Erlangen-NurembergKussmaul Campus for Medical ResearchErlangen 91052Germany Biomedical Engineering department Michigan State UniversityEast Lansing 48824USA Institute for Quantitative Health Science and Engineering Michigan State UniversityEast Lansing 48824USA Faculty of Pharmacy Capital University of Science and TechnologyIslamabad 44000Pakistan

Ulcerative colitis(UC)is a type of inflammatory bowel disease characterized by inflammation,ulcers and irritation of the mucosal *** drug delivery in UC encounters challenges because of multifaceted ***-loaded galactosylated-PLGA/Eudragit S100/pullulan nanocargoes(dexa-GP/ES/Pu NCs)have been developed with a dual stimuli-sensitive coating responsive to both colonic pH and microbiota,and an underneath galactosylated-PLGA core(GP).The galactose ligand of the GP preferentially binds to the macrophage galactose type-lectin-C(MGL-2)surface ***,both stimuli and ligand-mediated targeting facilitate nanocargoes to deliver dexa specifically to the colon with enhanced macrophage *** emulsion method coupled with a solvent evaporation coating technique was employed to prepare dexa-GP/ES/Pu *** nanocargoes were tested using in vitro,ex vivo techniques and dextran sodium sulfate(dSS)induced UC *** nanocargoes had desired physicochemical properties,drug release,cell uptake and cellular *** using a dSS-colitis model showed high localization and mitigation of colitis with downregulation of NF-ĸB and COX-2,and restoration of clinical,histopathological,biochemical indices,antioxidant balance,microbial alterations,FTIR spectra,and epithelial junctions’***,dexa-GP/ES/Pu NCs found to be biocompatible nanocargoes capable of delivering drugs to the inflamed colon with unique targeting properties for prolonged duration.

关键词： Galactosylated nanocargoes pH-sensitive drug delivery Pullulan Microbial sensitive Ulcerative colitis Macrophage galactose type-lectin C

维普期刊数据库

Exercise and children's cognition:The role of exercise characteristics and a place for metacognition

在线全文

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2015年第1期4卷 47-55页

作者： Phillip d.Tomporowski bryan Mc Cullick daniel M.Pendleton Caterina Pesce department of Kinesiology University of Georgia department of Human Motion and Sport Science Italian University Sport and Movement

definitive conclusions concerning the impact of exercise interventions on children＇s mental functioning are difficult to ascertain because of procedural differences among studies. A narrative review of studies was conducted to evaluate the role of two types of exercise interventions on children＇s cognition. Acute and chronic exercise interventions were classified as quantitative or qualitative on the basis of manipulations of task complexity and, by inference, mental engagement. Both types of interventions enhance aspects of children＇s cognition; however, their effects on metacognitive processes are unknown. The role of metacognitive processes and their regulation of children＇s behavior and academic performance are highlighted.

关键词： Academic achievement Child development Executive function Intelligence Memory Mental engagement

维普期刊数据库

I’LL HAVE A NEW BOdY (I’LL HAVE A NEW LIFE)

在线全文

学校读者我要写书评

暂无评论

城市漫步（上海版、英文） 2019年第8期 36-45页

作者： bryan Grogan 不详

The numbers don't lie;the beauty industry in China is rising *** demand for skin care products,make-up and surgical procedures grow,so are local entrep re neurs and corporati ons striving to nob a chunk of the pie.

关键词： beauty industry NEW

Pre-hospital assessment with ultrasound in emergencies: implementation in the field

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Emergency Medicine 2016年第2期7卷 117-123页

作者： Kevin P. Rooney Sari Lahham Shadi Lahham Craig L. Anderson bryan Bledsoe bryan Sloane Linda Joseph Megan B. Osborn John C. Fox department of Emergency Medicine Henry Ford Hospital Detroit Michigan 48202 USA Emergency Medicine University of California Irvine Orange California 92868 USA Emergency Medicine University of Nevada School of Medicine Las Vegas Nevada 89102 USA

BACKGROUNd: Point-of-care ultrasound(US) is a proven diagnostic imaging tool in the emergency department(Ed). Modern US devices are now more compact, affordable and portable, which has led to increased usage in austere environments. However, studies supporting the use of US in the prehospital setting are limited. The primary outcome of this pilot study was to determine if paramedics could perform cardiac ultrasound in the fi eld and obtain images that were adequate for interpretation. A secondary outcome was whether paramedics could correctly identify cardiac activity or the lack thereof in cardiac arrest ***: We performed a prospective educational study using a convenience sample of professional paramedics without ultrasound experience. Eligible paramedics participated in a 3-hour session on point-of-care US. The paramedics then used US during emergency calls and saved the scans for possible cardiac complaints including: chest pain, dyspnea, loss of consciousness, trauma, or cardiac ***: Four paramedics from two distinct fire stations enrolled a total of 19 unique patients, of whom 17 were deemed adequate for clinical decision making(89%, 95%CI 67%–99%). Paramedics accurately recorded 17 cases of cardiac activity(100%, 95%CI 84%–100%) and 2 cases of cardiac standstill(100%, 95%CI 22%–100%).CONCLUSION: Our pilot study suggests that with minimal training, paramedics can use US to obtain cardiac images that are adequate for interpretation and diagnose cardiac standstill. Further large-scale clinical trials are needed to determine if prehospital US can be used to guide care for patients with cardiac complaints.

关键词： Prehospital ultrasound Cardiac ultrasound Emergency ultrasound

维普期刊数据库

THE FUTURE SOUNd OF CHINA The Conflicting Tides of digital Streaming and Live Music

在线全文

学校读者我要写书评

暂无评论

城市漫步（上海版、英文） 2020年第2期 36-45页

作者： bryan Grogan 不详

Consumption of digital music in China is growing *** site Tencent Music claims to have reached 800 million users,while Netease puts its number of users at around the 600 million *** have raised huge sums of funding in the past few years,helping to drive consumption of music in digital *** what does this mean for the live music industry?As more promoters,festivals and live music venues enter the fray,along with increasing investment from the government,it has become more and more obvious that the number of Chinese music fans willing to head to live shows is not rising nearly as fast as investment into the live music market might suppose.

关键词： Streaming Music users

Internal Pressure Sculpting and Speleogenesis in Autogenic Karst

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Earth Science and Engineering 2013年第7期3卷 461-476页

作者： bryan Booth Karst Research Group University of South Florida Tampa 33612 Florida USA

Understanding the ongoing speleogenic processes that produce sinkholes and control the vital drinking water supplies of Florida and much else of the world is necessary research. This article （and the associated poster presentation） discusses theoretical processes that may act in addition to mass dissolution kinetics in producing voids, conduits and caves in autogenic karst landforms. Possible theoretical factors that affect these speleogenic processes are： microscopic mixing corrosion （low constant flow, low constant flow against current, temperature-induced mixing corrosion, and pressure-induced mixing corrosion in karst matrix）, random dissolution models, simulation of gravity-induced microscopic breakdown, and storm surge effects. Finally, a theoretical model is discussed that unifies these various microscopic processes into a macro-scale process, called internal pressure sculpting. Computer models were designed to illustrate these theoretical processes： Non-calibrated computer models simulating each process discussed in this paper are presented for illustration, as well as the preliminary results of calibrated models depicting random dissolution, mechanical breakdown, and storm surge effects. The theoretical processes discussed and simulated may have major effects on cave morphology. Computer simulations appear to accurately portray the shape and form of some cave features with dissolutional morphologies. Theoretical discussion concludes with a general discussion of possible improvements to the presented models as well as the ability to generalize theoretical processes to hypogenic, halogenic, and autogenic speleogenesis.

关键词： Cave development in limestone mixing corrosion karst computer modeling solutional widening rate speleogenesis.

THE FUTURE SOUNd OF CHINA The Conflicting Tides of digital Streaming and Live Music

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

城市漫步（GBA版） 2020年第2期 36-45页

作者： bryan Grogan 不详

关键词： Streaming Music raised