|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Phase recovery and holographic image reconstruction using deep learning in neural networks显示文摘Phase recovery from intensity-only measurements forms the heart of coherent imaging techniques and holography.In this study,we demonstrate that a neural network can learn to perform phase recovery and holographic image reconstruction after appropriate training.This deep learning-based approach provides an entirely new framework to conduct holographic imaging by rapidly eliminating twin-image and self-interference-related spatial artifacts.This neural network-based method is fast to compute and reconstructs phase and amplitude images of the objects using only one hologram,requiring fewer measurements in addition to being computationally faster.We validated this method by reconstructing the phase and amplitude images of various samples,including blood and Pap smears and tissue sections.These results highlight that challenging problems in imaging science can be overcome through machine learning,providing new avenues to design powerful computational imaging systems. | Yair Rivenson Yibo Zhang Harun Günaydın Da Teng Aydogan Ozcan | 2017 | Light(Science & Applications)2017,6,1: | 5 |
| 2 | Evolution of the social network of scientific collaborations显示文摘 | A.L Barabási H Jeong Z Néda E Ravasz A Schubert T Vicsek | 2002 | Physica A: Statistical Mechanics and its Applications2002,,3: | 3 |
| 3 | Transplants of Human Mesenchymal Stem Cells Improve Functional Recovery After Spinal Cord Injury in the Rat显示文摘 | Da?a ?í?ková Ján Rosocha Ivo Vanicky Stanislava Jergová Milan ?í?ek | 2006 | Cellular and Molecular Neurobiology (-)2006,,78: | 3 |
| 4 | Epidemiology of upper gastrointestinal symptoms in Brazil(Epi Gastro):A population-based study according to sex and age group显示文摘AIM:To determine the prevalences of symptoms consistent with gastroesophageal reflux disease(GERD)and dyspepsia in South America.METHODS:A telephone survey was conducted among adult owners of land-based telephones in S?o Paulo,Brazil,using previously validated computer-assisted sampling and survey protocols.The Portugueselanguage survey included(1)sociodemographic characteristics(e.g.,weight,height,smoking)and comorbidities;(2)dietary habits;(3)presence of symptoms consistent with GERD or dyspepsia within the prior 3mo;and(4)use of medications and other therapies to manage symptoms.Data were stratified post-hoc into three homogeneous geographical regions of S?o Paulo according to the Social Exclusion Indices of the districts and postal codes.Survey response data from each respondent were weighted by the numbers of adults and landline telephones in each household.The analyses were weighted to account for sampling design and to be representative of the S?o Paulo population according to city census data.RESULTS:Among 4570 households contacted,an adult from 3050(66.7%)agreed to participate.The nonresponse rate was 33.3%.The mean(SE)respondent age was 42.6(16.0)years.More than half of all respondents were women(53.1%),aged 18 through 49 years(66.7%),married or cohabitating(52.5%),and/or above normal-weight standards(i.e.,35.3%overweight and 16.3%obese).A total of 26.5%of women were perimenopausal.More than 20%of respondents reported highly frequent symptoms consistent with GERD(e.g.,gastric burning sensation=20.8%)or dyspepsia(e.g.,abdominal swelling/distension=20.9%)at least once per month.Prevalences of these symptoms were significantly(approximately 1.5-to 2.0-fold)higher among women than men but did not vary significantly as a function of advancing age.For instance,14.1%of women reported that they experienced stomach burning(symptom of GERD)at least twice per week,compared to 8.4%of men(P=0.012 byχ2 test).A total of 15.7%of women reported that they experienced abdominal swelling(symptom of dyspepsia)at least twice per week,compared to 6.4%of men(P<0.001byχ2 test).Despite frequent manifestations of GERD or dyspepsia,most(≥90%)respondents reported that they neither received prescription medications fromphysicians,nor took behavioral measures(e.g.,dietary modifications),to manage symptoms.CONCLUSION:Symptoms consistent with dyspepsia and GERD are prevalent in Brazil and represent major public-health and clinical challenges. | Maria do Rosário Dias de Oliveira Latorre Aline Medeiros da Silva Décio Chinzon Jaime N Eisig Telma RP Dias-Bastos | 2014 | World Journal of Gastroenterology2014,20,46: | 2 |
| 5 | HEART RATE VARIABILITY DURING HIGH-INTENSITY EXERCISE显示文摘The aim of this paper is to describe and analyse the behaviour of heart rate variability(HRV)during constant-load,high-intensity exercise using a time frequency analysis(Wavelet Transform).Eleven elite cyclists took part in the study(age:18.6±3.0 years;VO_(2max):4.88±0.61 litres·min^(-1)).Initially,all subjects performed an incremental cycloergometer test to determine load power in a constant load-test(379.55±36.02 W;89.0%).HRV declined dramatically from the start of testing(p<0.05).The behaviour of power spectral density within the LF band mirrored that of total energy,recording a significant decrease from the outset LF peaks fell rapidly thereafter,remaining stable until the end of the test.HF-VHF fell sharply in the first 20 to 30 seconds.The relative weighting(%) of HF-VHF was inverted with the onset of fatigue,[1.6%at the start,7.1(p<0.05) at the end of the first phase,and 43.1%(p<0.05) at the end of the test].HF-VHF_(peak) displayed three phases:a moderate initial increase,followed by a slight fall,thereafter increasing to the end of the test.The LF/HF-VHF ratio increased at the start,later falling progressively until the end of the first phase and remaining around minimal values until the end of the test. | SARMIENTO Samuel GARCIA-MANSO Juan Manuel MARTIN-GONZALEZ Juan Manuel VA-AMONDE Diana CALDERóN Javier DA SILVA-GRIGOLETTO Marzo Edir | 2013 | Journal of Systems Science & Complexity2013,26,1: | 2 |
| 6 | sTWEAK is a marker of early haematoma growth and leukoaraiosis in intracerebral haemorrhage显示文摘Objective To study the association between early growth of haematoma with biomarkers of endothelial dysfunction such as leukoaraiosis(LA)and the soluble tumour necrosis factor-like weak inducer of apoptosis(sTWEAK)in patients with intracerebral haemorrhage(ICH).Methods This is a retrospective observational study of patients with nontraumatic ICH.Clinical and biochemical parameters were analysed.sTWEAK levels were measured by ELISA.LA was analysed in the hemisphere without haemorrhage to avoid interference with the acute injury.The main endpoint was the haematoma growth evaluated by the difference in volume between the second and the initial neuroimage.Poor functional outcome,defined as a modified Rankin Scale>2 at 3 months,was considered as secondary endpoint.Receiver operating characteristic curve analysis was performed to stablish the best cut-off for sTWEAK levels associated with haematoma growth.Results We included 653 patients with ICH in our analysis(71.1±11.9 years,44%women).Haematoma growth was observed in 188 patients(28.8%).sTWEAK levels≥5600 pg/mL predicted ICH growth with a sensitivity of 84%and a specificity of 87%.sTWEAK levels≥5600 pg/mL and the presence of LA were associated with haematoma growth(OR:42.46;(CI 95%22.67 to 79.52)and OR:2.73(CI 95%1.39 to 5.34),respectively).Also,the presence of LA(OR:4.31(CI 95%2.89 to 6.42))and the interaction between ICH growth and sTWEAK(OR:2.23(CI 95%1.40 to 3.55))were associated with poor functional outcome at 3 months.Conclusion sTWEAKs,together with the presence and grade of LA,are biomarkers able to predict ICH growth and poor functional outcome in patients with ICH. | Andrés da Silva-Candal Iria López-Dequidt Manuel Rodriguez-Yañez PauloÁvila-Gómez JoséManuel Pumar JoséCastillo Tomás Sobrino Francisco Campos Ramón Iglesias-Rey Pablo Hervella | 2021 | Stroke & Vascular Neurology2021,6,4: | 2 |
| 7 | Energetic-protein supplementation in the last 60 days of gestation improves performance of beef cows grazing tropical pastures显示文摘Background: Nutrition is one of the most important factors that affect animal performance, and it therefore also impacts on financial results in beef systems. In this way, finding the best strategy for feeding supplements is of paramount importance. Aiming to evaluate the effect of supplement feeding strategies for beef cows in the last third of gestation, two experiments were conducted. In Experiment 1, 35 pregnant Nellore cows were assigned to a completely randomized design with four treatments: control, which received no supplement; supplementation for the last 30 d of gestation(30-d; 3.0 kg/d); supplementation for the last 60 d of gestation(60-d; 1.5 kg/d); or supplementation for the last 90 d of gestation(90-d; 1.0 kg/d). All supplemented treatments received the same total amount of supplement throughout the experiment: 90 kg(20% of crude protein). A second experiment(Experiment 2) was delineated to evaluate the effects of the amounts offered in Experiment 1 on intake and metabolism. Four multiparous pregnant Nellore cows were assigned to a 4 × 4 Latin square design, with periods of15 d each.Results: There was a linear effect of the number of days of supplementation on calving body weight(BW; P < 0.05)and a quadratic effect on BW change from parturition to d 31 post-calving(P < 0.05), with cows on the 60-d strategy losing less BW post-calving. No difference was found in offspring birth BW(P > 0.10). A significant linear effect on interval from parturition to conception(P < 0.05) was observed, with the highest calving to conception interval being observed in the 90-d strategy. The level of supplementation did not affect forage intake or neutral detergent fiber digestibility(P > 0.10). Nitrogen excreted through urine tended to increase linearly with the level of supplementation(P < 0.10).Conclusion: Providing 1.5 kg of supplement during the last 60 d of gestation improves cow performance after calving, reducing the magnitude of BW lost, and reduces the number of days from calving to re-conception in the following breeding season compared to the usually recommended period of supplementation of 90 d pre-partum. | Aline Gomes da Silva Mário Fonseca Paulino Edenio Detmann Henrique Jorge Fernandes Lincoln da Silva Amorim Román Enrique Maza Ortega Victor Valério de Carvalho Josilaine Aparecida da Costa Lima Felipe Henrique de Moura Mariana Benevides Monteiro Jéssika Almeida Bitencourt | 2018 | Journal of Animal Science and Biotechnology2018,9,1: | 2 |
| 8 | Assessing the alignment between business strategy and use of multiple performance using interaction approach 显示文摘 | Ruzita J N I Daing Z Yuserrie | 2006 | The Business Review2006,5,1: | 1 |
| 9 | Broad patterns of gene expression revealed by clustering analysis of tumor and normal colon tissues probed by oligonucleotide arrays 显示文摘 | Barkai N Notterman DA | 1999 | Proc Natl Acad Sci U S A1999,96,12: | 1 |
| 10 | 显示文摘 | Mullen N Kyrou I | 2002 | J Clin Endocrinol Metab2002,87,10: | 1 |
| 11 | CXC receptor-1 silencing inhibits androgen-independent prostate cancer显示文摘 | Shamaladevi N Lyn DA Escudero DO | 2009 | Cancer Res2009,69,21: | 1 |
| 12 | Do long test yield a more accurate diagnosis of dementia than short tests: a comparison of 5 neuropsychological tests显示文摘 | Stuss DT Meiran N Guzman DA | 1996 | Arch Neurol1996,53,10: | 1 |
| 13 | Rapid control of wound infections by targeted photodynamic therapy monitored by in vivo bioluminescence imaging显示文摘 | Hamblin MR O'Donnell DA Murthy N | 2002 | Pbotochem Photobiol2002,75,1: | 1 |
| 14 | A retrospective radiographic analysis of bone loss following placement of TiO2 grit-blasted implants in the posterior maxilla mid mandible 显示文摘 | Warren P Chaffee N Fehon DA | 2002 | The International Journal of Oral & Maxillofacial Implants2002,17,3: | 1 |
| 15 | Low ectopic pregnancy rates after in vitro fertilizat ion:do practice habits matter显示文摘 | Keegan DA Morelli SS Noyes N | 2007 | Fert il Steril2007,88,3: | 1 |
| 16 | Comparison of leak point pressure methods in an animal model of stress uri nary incontinence 显示文摘 | Conway DA Kamo I Yoshimura N | 2005 | Int Urogynecol J2005,16,5: | 1 |
| 17 | Characterization of an Akt kinase inhibitor with potent pharmacodynamic and antitumor activity 显示文摘 | Rhodes N Heerding DA Duckett DR | 2008 | Cancer Res2008,68,7: | 1 |
| 18 | Effect of ausforming on microstructure and hardness of AISI H13 tool steel modified with niobium显示文摘 | Elias C N and Costa Viana C S Da | 1992 | Materials Science and Technology1992,9,: | 1 |
| 19 | Making drug discovery a SNP显示文摘 | Campbell DA Valdes A Spurr N | 2000 | Drug Discov Today2000,5,: | 1 |
| 20 | The common -866G>A variant in the promoter ofUCP2 is associated with decreased risk of coronary artery disease in type 2 diabetic men显示文摘 | Cheurfa N Dubois-Laforgue D Ferrarezi DA | 2008 | Diabetes2008,57,4: | 1 |