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visual function alterations in essential tremor: A case report

Journal of Innovative Optical Health Sciences 2015年第5期8卷 94-98页

作者： David P.Pinero Begona Monllor Vicenta Moncho Vicent J.Camps Dolores de Fez Grupo de Optica y Percepcion visual(GOPV)department of optics Pharmacology and Anatomy University of AlicanteSpain department of Ophthalmology(OFTALMAR)Medimar International Hospital AlicanteSpain Foundation for the visual Quality(Fundacion para la Calidad visual FUNCAVIS)

Our purpose is to report alterations in contrast sensitivity function(CSF)and in the magno,parvo and koniocellular visual pathways by means of a multichannel perimeter in case of an essential tremor(ET).A complete evaluation of the visual function was performed in a 69-year old patient,including the analysis of the chromatic discrimination by the Fansworth–Munsell 100 hue test,the measurement of the CSF by the CSV-1000E test,and the detection of potential alteration patterns in the magno,parvo and koniocellular visual pathways by means of a multichannel *** acuity and intraocular pressure(IOP)were within the ranges of normality in both *** abnormalities were detected in the fundoscopic examination and in the optical coherence tomography(OCT)*** results of the color vision examination were also within the ranges of normality.A signi¯cant decrease in the achromatic CSFs for right eye(RE)and left eye(LE)was detected for all spatial *** statistical global values provided by the multichannel perimeter confirms that there were significant absolute sensitivity losses compared to the normal pattern in *** the LE,only a statistically significant decrease in sensitivity was detected for the blue-yellow(BY)*** pattern standard deviation(PSD)values obtained in our patient indicated that there were significant localized losses compared to the normality pattern in the achromatic channel of the RE and in the red-green(RG)channel of the *** color vision alterations may be present in ET that cannot be detected with conventional color vision tests,such as the FM 100 Hue.

关键词： Multichannel perimetry essential tremor color vision visual pathways contrast sensitivity

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Polyoxometalates for continuous power generation by atmospheric humidity

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Nano Research 2024年第3期17卷 1875-1885页

作者： Tuo Ji Weilin Chen Zhenhui Kang Liming Zhang Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal UniversityChangchun 130024China Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices DepartmentSoochow UniversitySuzhou 215123China Macao Institute of Materials Science and Engineering Macao University of Science and TechnologyTaipaMacao 999078China Institute of Functional State Key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China

Atmospheric humidity is a sustainable low-value energy widely existing in natural environment,which is a promising candidate to solve the noncontinuous and low efficiency of low-value energy power *** the mono-substituted Dawson-type polyoxometalates are constructed to be highly dispersed organic ammonium-polyoxoanion clusters and are assembled into thin films power generators with micropores,working in atmospheric *** optimal polyoxometalates generator with the thickness of 7.2μm and the area of 0.36 cm^(2) produces a voltage of 0.68 V and a current density of 19.5μA·cm^(-2) under simulated natural environment,and works continuously and stably under almost all-natural environments(humidity 10%–90%).The highly dispersed polyoxometalate nanoclusters can form microporous in polyoxometalate films to effectively absorb atmospheric humidity and spontaneously form distribution gradient of water,which is the structural basis of power *** continuous power generation may be maintained by the effective adsorption and utilization of H_(2)O,the huge electrostatic field of organic ammonium-polyoxoanion clusters,and the reasonably designed polyoxometalates containing inorganic small ions with high *** is the first humidity generator designed with polyoxometalates,which may provide a new research direction for polyoxometalates in sustainable utilization of low-value energy.

关键词： atmospheric humidity continuous power generations nanomaterials polyoxoanions polyoxometalates

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Chiral phonon activated spin Seebeck effect in chiral materials

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Science China(Physics,Mechanics & Astronomy) 2024年第3期67卷 149-155页

作者： Xiao Li Jinxin Zhong Jinluo Cheng Hao Chen Huiqian Wang Jun Liu Dali Sun Lifa Zhang Jun Zhou Phonon Engineering Research Center of Jiangsu Province Center for Quantum Transport and Thermal Energy ScienceSchool of Physics and TechnologyNanjing Normal UniversityNanjing 210023China Center for Phononics and Thermal Energy Science China-EU Joint Lab for NanophononicsSchool of Physics Science and EngineeringTongji UniversityShanghai 200092China Changchun Institute of optics Fine Mechanics and PhysicsChinese Academy of ScienceChangchun 130033China department of Mechanical and Aerospace Engineering North Carolina State UniversityRaleigh NC 27606USA department of Physics North Carolina State UniversityRaleigh NC 27695USA Organic and Carbon Electronics Laboratories(ORaCEL) North Carolina State UniversityRaleigh NC 27606USA

Efficient generation of spin polarization is very important for spintronics and quantum computation. In chiral materials without magnetic order nor spin-orbit coupling, we find a new spin selectivity effect—chiral phonon activated spin Seebeck(CPASS)effect. Starting with the nonequilibrium distribution of chiral phonons under a temperature gradient, the CPASS coefficients are computed based on the Boltzmann transport theory. With both the phonon-drag and band transport contributions, the spin accumulations generated by the CPASS effect exhibit quadratic dependence on the temperature gradient. The strength of the CPASS effect and the relative magnitude of both contributions are tunable by the chemical potential modulation. The CPASS effect, which gives a promising explanation on the traditional chiral-induced spin selectivity effect, provides opportunities for the exploration of advanced spintronic devices based on chiral materials even in the absence of any magnetic order and spin-orbit coupling.

关键词： spin Seebeck effect chiral phonon phonon-drag contribution efficient spin generation

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Electrochemical protein biosensors for disease marker detection:progress and opportunities

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Microsystems & Nanoengineering 2024年第3期10卷 1-20页

作者： Lanpeng Guo Yunong Zhao Qing Huang Jing Huang Yanbing Tao Jianjun Chen Hua-Yao Li Huan Liu School of Integrated Circuits Wuhan National Laboratory for OptoelectronicsOptics Valley LaboratoryHuazhong University of Science and TechnologyWuhan 430074China Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education School of Integrated CircuitsAnhui UniversityHefei 230601China School of Optoelectronic Materials and Technology Jianghan UniversityWuhan 430056China department of Otorhinolaryngology Union HospitalTongji Medical CollegeHuazhong University of Science and Technology1277 Jiefang AvenueWuhan 430022China Wenzhou Institute of Advanced Manufacturing Technology Huazhong University of Science and TechnologyWenzhou 325000China

The development of artificial intelligence-enabled medical health care has created both opportunities and challenges for next-generation biosensor *** are extensively used as biological macromolecular markers in disease diagnosis and the analysis of therapeutic *** protein biosensors have achieved desirable specificity by using the specific antibody–antigen binding principle in ***,the active centers of protein biomarkers are surrounded by a peptide matrix,which hinders charge transfer and results in insufficient sensor ***,electrode-modified materials and transducer devices have been designed to increase the sensitivity and improve the practical application prospects of electrochemical protein *** this review,we summarize recent reports of electrochemical biosensors for protein biomarker *** highlight the latest research on electrochemical protein biosensors for the detection of cancer,viral infectious diseases,inflammation,and other *** corresponding sensitive materials,transducer structures,and detection principles associated with such biosensors are also addressed ***,we present an outlook on the use of electrochemical protein biosensors for disease marker detection for the next few years.

关键词： diagnosis specificity Electrochemical

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Programmable silicon-photonic quantum simulator based on a linear combination of unitaries

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Photonics Research 2024年第8期12卷 1760-1767页

作者： YUE YU YULIN CHI CHONGHAO ZHAI JIESHAN HUANG QIHUANG GONG JIANWEI WANG State Key Laboratory for Mesoscopic Physics School of PhysicsPeking UniversityBeijing 100871China Frontiers Science Center for Nano-optoelectronics&Collaborative Innovation Center of Quantum Matter Peking UniversityBeijing 100871China Collaborative Innovation Center of Extreme optics Shanxi UniversityTaiyuan 030006China Yangtze Delta Institute of Optoelectronics Peking UniversityNantong 226010China Hefei National Laboratory Hefei 230088China department of Electrical and Computer Engineering University of WashingtonSeattleWashington 98195USA China Mobile Research Institute Beijing 100053China

Simulating the dynamic evolution of physical and molecular systems in a quantum computer is of fundamental interest in many *** implementation of dynamics simulation requires efficient quantum *** Lie-Trotter-Suzuki approximation algorithm,also known as the Trotterization,is basic in Hamiltonian dynamics simulation.A multi-product algorithm that is a linear combination of multiple Trotterizations has been proposed to improve the approximation ***,implementing such multiproduct Trotterization in quantum computers remains challenging due to the requirements of highly controllable and precise quantum entangling operations with high success ***,we report a programmable integrated-photonic quantum simulator based on a linear combination of unitaries,which can be tailored for implementing the linearly combined multiple Trotterizations,and on the simulator we benchmark quantum simulation of Hamiltonian *** modify the multi-product algorithm by integrating it with oblivious amplitude amplification to simultaneously reach high simulation precision and high success *** quantum simulator is devised and fabricated on a large-scale silicon-photonic quantum chip,which allows the initialization,manipulation,and measurement of arbitrary four-qubit states and linearly combined unitary *** an example,the quantum simulator is reprogrammed to emulate the dynamics of an electron spin and nuclear spin coupled *** work promises the practical dynamics simulations of real-world physical and molecular systems in future large-scale quantum computers.

关键词： quantum Hamiltonian linearly

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Numerical Assessment of the Thermal Efficiency of a Concentrated Photovoltaic/Thermal (CPV/T) Hybrid System Using Air as Heat Transfer Fluid

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Smart Grid and Renewable Energy 2024年第1期15卷 1-14页

作者： Amadou Konfe Boureima Kabore Yves Christian Nonguierma Fatimata Ouedraogo Sié Kam Laboratory of Thermal and Renewable Energies University Joseph Ki-Zerbo Ouagadougou Burkina Faso Physic department University Norbert Zongo Koudougou Burkina Faso Photonics and Nolinear optics Laboratory University of Moncton Moncton Canada

In this paper, we propose a thermal model of a hybrid photovoltaic/thermal concentration system. Starting from the thermal balance of the model, the equation is solved and simulated with a MATLAB code, considering air as the cooling fluid. This enabled us to evaluate some of the parameters influencing the electrical and thermal performance of this device. The results showed that the temperature, thermal efficiency and electrical efficiency delivered depend on the air mass flow rate. The electrical and thermal efficiencies for different values of air mass flow are encouraging, and demonstrate the benefits of cooling photovoltaic cells. The results show that thermal efficiency decreases air flow rate greater than 0.7 kg/s, whatever the value of the light concentration used. The thermal efficiency of the solar cell increases as the light concentration increases, whatever the air flow rate used. For a concentration equal to 30 sun, the thermal efficiency is 0.16 with an air flow rate equal to 0.005 kg/s;the thermal efficiency increases to 0.19 with an air flow rate equal to 0.1 kg/s at the same concentration. An interesting and useful finding was that the proposed numerical model allows the determination of the electrical as well as thermal efficiency of the hybrid CPV/T with air flow as cooling fluid.

关键词： PV Cell Concentrating Thermal Energy Conversion Cooling Hybrid System

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Frequency-comb-linearized, widely tunable lasers for coherent ranging

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Photonics Research 2024年第4期12卷 663-681页

作者： BAOQI SHI YI-HAN LUO WEI SUN YUE HU JINBAO LONG XUE BAI ANTING WANG JUNQIU LIU department of optics and Optical Engineering University of Science and Technology of ChinaHefei 230026China International Quantum Academy Shenzhen 518048China Shenzhen Institute for Quantum Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China

Tunable lasers,with the ability to continuously vary their emission wavelengths,have found widespread applications across various fields such as biomedical imaging,coherent ranging,optical communications,and *** these applications,a wide chirp range is advantageous for large spectral coverage and high frequency ***,the frequency accuracy and precision also depend critically on the chirp linearity of the *** extensive efforts have been made on the development of many kinds of frequency-agile,widely tunable,narrow-linewidth lasers,wideband yet precise methods to characterize and linearize laser chirp dynamics are also *** we present an approach to characterize laser chirp dynamics using an optical frequency *** instantaneous laser frequency is tracked over terahertz bandwidth at 1 MHz *** this approach we calibrate the chirp performance of 12 tunable lasers from Toptica,Santec,New Focus,EXFO,and NKT that are commonly used in fiber optics and integrated *** addition,with acquired knowledge of laser chirp dynamics,we demonstrate a simple frequency-linearization scheme that enables coherent ranging without any optical or electronic linearization *** approach not only presents novel wideband,highresolution laser spectroscopy,but is also critical for sensing applications with ever-increasing requirements on performance.

关键词： tunable Focus coherent

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Characterization, passive and active treatment in strabismic amblyopia: a narrative review

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International Journal of Ophthalmology(English edition) 2020年第7期13卷 1132-1147页

作者： Myriam Milla David P.Pinero department of Optometry OFTALVIST AlicanteAlicante 03016Spain Group of optics and visual Perception Department of OpticsPharmacology and AnatomyUniversity of AlicanteSan Vicente del RaspeigAlicante 03690Spain

Strabismic amblyopia is characterized by a distorted spatial *** this condition,the neurofunctional disorder occurring during first years of life provoke several monocular and binocular anomalies such as crowding,deficits in the accommodative response,contrast sensitivity,and ocular motility *** inhibition of the binocular function of the brain by the misaligned amblyopic eye induces a binocular imbalance leading to interocular suppression and the reduction or lack of *** treatments such as occlusion,optical and/or pharmacological penalization,and Bangerter foils has been demonstrated to be potentially useful treatments for strabismic *** researches have proved new pharmacological options to improve and maintain visual acuity af ter occlusion treatment in strabismic ***,the active vision therapy,in the last years,is becoming a very relevant therapeutic option in combination with passive treatments,especially during and after monocular therapy,in the attempt of recovering the imbalanced binocular vision.

关键词： amblyopia strabismus occlusion vision therapy strabismic amblyopia penalization Bangerter foil

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Deep learning-based inpainting of saturation artifacts in optical coherence tomography images

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Journal of Innovative Optical Health Sciences 2024年第3期17卷 1-10页

作者： Muyun Hu Zhuoqun Yuan Di Yang Jingzhu Zhao Yanmei Liang Institute of Modern optics Nankai UniversityTianjin Key Laboratory of Micro-scale Optical Information Science and TechnologyTianjin 300350China department of Thyroid and Neck Tumor Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjin 300060China

Limited by the dynamic range of the detector,saturation artifacts usually occur in optical coherence tomography(OCT)imaging for high scattering *** available methods are difficult to remove saturation artifacts and restore texture completely in OCT *** proposed a deep learning-based inpainting method of saturation artifacts in this *** generation mechanism of saturation artifacts was analyzed,and experimental and simulated datasets were built based on the *** super-resolution generative adversarial networks were trained by the clear–saturated phantom image *** perfect reconstructed results of experimental zebrafish and thyroid OCT images proved its feasibility,strong generalization,and robustness.

关键词： Optical coherence tomography saturation artifacts deep learning image inpainting.

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Assessment of Dose and Lifetime Risk of Exposure Induced Cancer in Adult Common Computed Tomography Scans in Douala-Cameroon

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Open Journal of Radiology 2024年第3期14卷 135-146页

作者： Celestin Mpeke Mokubangele Alexandre Ngwa Ebongue Daniel Bongue Boniface Moifo Centre for Atomic Molecular Physics and Quantum optics (CEPAMOQ) University of Douala Douala Cameroon department of Physics Faculty of Science University of Douala Douala Cameroon department of Radiology and Radiation Oncology Faculty of Medicine and Biomedical Sciences University of Yaounde 1 Yaounde Cameroon Radiology department Yaounde Gynaeco-Obstetric and Pediatric Hospital Yaounde Cameroon

Background: Among medical technologies that use ionizing radiation, CT is currently the radio diagnostic technic that can deliver the highest radiation to the Patient compared with other conventional procedures. In developing countries, the uses and risks of CT have not been well characterized. Objective: To estimate the lifetime attributable risk (LAR) incidence and mortality for cancer for each procedure for adult’s patients who had Computed Tomography examinations in 10 imaging centers in the city of Douala-Cameroon so as to provide a reference data. Materials and Methods: We conducted a cross-sectional study describing radiation dose associated with the 8 most common types of diagnostic CT studies performed on 1287 consecutive adult patients at 10 Douala radiology department. We estimated lifetime attributable risks of cancer by study type from these measured doses. Estimation of LAR for cancer incidence and mortality was based on the effective dose, patient’s sex and age at exposure using the BIER VII preferred models. Results: Mean effective dose from CT scans examinations varied from: 0.30 and 8.81 mSv. The highest doses were observed for lumbar spine CT (8.81 mSv), followed by abdomen-pelvis procedure (6.46 mSv), chest-abdomen-pelvic CT (6.61 mSv), chest CT (3.90 mSv), cervical Spine CT (3.05 mSv), head CT (1.7 mSv) and lower for sinus CT (0.30 mSv). The LAR values of all cancer from patients’ CT scans obtained vary from 67.13 excess per 100,000 (about 1 in 1489) and 0.45 excess per 100,000 (about 1 in 222,222). All cancer risk was high for lumbar spine CT in women 20 years old (67.13 excess deaths in 100,000 scans) followed by chest-abdomen-pelvic CT (50.36 excess deaths in 100,000 scans) and abdomen-pelvic CT (49.22 excess deaths in 100,000 scans) for the same age group. The LAR of incidence and mortality values were higher from female’s patients than males and higher for younger than older patients. Conclusion: This study was set out to estimate the LAR v

关键词： Patient Dose CT Scan BEIIR VII Report Cancer Risk Assessment

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