Studies of different variations of optical tweezers with digital video microscopy

... different variations of optical tweezers From a single spot optical tweezers, I expand the system to include two spots optical tweezers, multiple spots optical trapping and line optical tweezers ... dual-beams optical tweezers setup (b) Photographs of the dual-beam optical tweezers setup (c) Optical micrograph of 1.2µm polystyrenes beads dispersed in aqueous medium (d) Optical micrograph of two optical ... mescopic systems The objective of the thesis is to integrate optical microscopy with more complex optical designs to construct different variations of optical tweezers and study their plausible...

Báo cáo khoa học: "Studies of cocktail therapy with multiple cytokines for neoplasia or infectious disease of the dog" pps

... performed for 30 cycles at 94oC for min, 55oC for min, 72oC for with an additional extension step at 72oC for 10 Part B Canine IL-6 cDNA amplification Preparation of canine blood cell A normal ... added to the 5’ending region of these two primers for vector ligation Using these primers, a 480 bp fragment, including the whole coding sequence of canine IL-3, was expected to be amplified The PCR ... (LPS) or 3) 10 ß¹/ml ConA plus 10 ng/ml phorbol 12, 13-myristate acetate (PMA)-was added to the medium These Tlymphocytes were then cultured for h, h and h at 37oC in a humidified incubator with...

Studies of electrodes modified with zeolites and poly(4 nitro 2 phenylenediamine) and their composite 3

... 126 5 .2 Experimental 128 5 .2. 1 Reagents 128 5 .2. 2 Apparatus 128 5 .2. 3 Procedure 129 5 .3 Results and discussion 131 5 .3. 1 Characterization of the composites in the media (pH =2) 133 5 .3 .2 Characterization ... studies of poly(4- nitro- 1 ,2- phenylenediamine) films 65 3. 1 Introduction 66 3 .2 Experimental 68 3 .2. 1 Reagents 68 3 .2. 2 Apparatus 68 3 .2. 3 Procedure 68 3. 3 Results and discussion 70 3. 3.1 Electropolymerization ... Characterization of the composites in the media containing redox active species 137 5 .3 .2. 1 Effect of the amount of zeolites 1 42 5 .3 .2. 2 pH effect 145 5 .3 .2. 3 Accumulation of Fe(CN) 63- 147 5 .3 .2. 4 Effect of...

Studies of electrodes modified with zeolites and poly(4 nitro 2 phenylenediamine) and their composite

... current/ (µA) Remark KNO3 10.31 0.03 62 2 .20 25 EPD* Mg(NO3 )2 10.31 0.0 32 2 .20 14.3 Sparse EPD Mg(NO3 )2 10.31 0.0 32 3.00 48 Sparse EPD Mg(NO3 )2 10.31 0.0 32 4.00 70 Multilayer EPD Al(NO3)3 9.90 ... [1 02, 103] 20 1.3 Applications of chemically modified electrodes The applications involving modified electrodes are multiple and widespread: chemical sensing, energy conversion and storage, and ... the tailoring of modified electrodes to deliberately control and manipulate the properties of electrode surface can meet the needs of many sensing problems This field of modified electrodes, which...

Báo cáo y học: "Medical resource utilization among patients with ventilator-associated pneumonia: pooled analysis of randomized studies of doripenem versus comparators"

... article as: Kollef et al., Medical resource utilization among patients with ventilator-associated pneumonia: pooled analysis of randomized studies of doripenem versus comparators Critical Care ... study design, analysis of results, interpretation of findings, and drafting of the paper Independent statistical analysis The accuracy of the data analysis was independently verified by William Shannon, ... comparator group (10 days) was generally consistent with that in previous cohort studies of patients with VAP (10 to 14 days) [1,23] Similarly, duration of hospitalization (26 days) was within the range...

Tài liệu Báo cáo khoa học: "Predicting the ﬂuency of text with shallow structural features: case studies of machine translation and human-written text" doc

... understand which factors are predictive of good ﬂuency The distribution of ﬂuency scores in the dataset is rather skewed, with the majority of the sentences rated as being of average ﬂuency as ... assess the content of the sentence compared to a human gold-standard Yet, the assessments of the two aspects were often the same—readability /ﬂuency of the sentence is important for understanding the ... from machine translations • Distinguish human and machine translations • Distinguish ﬂuent machine translations from poor machine translations • Distinguish the better (in terms of ﬂuency) translation...

Báo cáo khoa học: Fluorescence studies of the replication initiator protein RepA in complex with operator and iteron sequences and free in solution pdf

... Fluorescence studies of RepA R E M Diederix et al Interestingly, in the latter case, the protein binds as a monomer [26] Free in solution, the protein is essentially dimeric, ... DNA-binding domains, and rearrangement of the relative orientation of the two domains [7,9] The conformational change upon iteron binding may expose a recognition site for proteinprotein interaction, ... latter protein, the crystal structures of both the monomeriteron and dimeroperator complexes are available, indicating secondary structural changes in the linker connecting the dimerization and...

Báo cáo Y học: Functional studies of the Synechocystis phycobilisomes organization by high performance liquid chromatography on line with a mass spectrometer docx

... and phycocyanins, HPLC separation allowed a quantitative estimation of the relative amount of each protein component from the area underlying each peak This was facilitated by the fact that the ... region rich in amino acids with a higher than average contribution to the UV optical absorption and protonation of amino groups by electrospray ionization, leading to falsely high estimates of ... biliproteins are strongly conserved and it may reasonably be assumed that they have similar optical extinction coefﬁcients; therefore the area underlying each HPLC peak allowed a comparison of the relative...

Effects of simultaneous doping with boron and phosphorous on the structural, electronic and optical properties of silicon nanostructures

... asymptotically the value of the band-gap of the undoped Si-nw This is another indication of how doping can modify the electronic and optical properties of the Si nanostructures Conclusions 3.2 3.4 ... systematic analysis of the effect of the B and P codoping in Si-nw, concentrating not only on the structural properties but also on how doping inﬂuences the electronic and optical properties Here, ... concentrate on the dependence of the doped Si-nw properties on the dopant concentration, we note ﬁrst that on augmenting the number of atoms in the cell (thus lowering the dopant concentration),...

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báo cáo hóa học: " Effect of optical flow versus attentional strategy on gait in Parkinson''''s Disease: a study with a portable optical stimulating device" pptx

... significantly change gait parameters respect to basal walking in any condition involving an optic flow, while the attentional strategy induced a marginally significant increase of stride length and a ... the attentional strategy A possible interpretation of these findings refers to the deterioration of dopaminergic function of the retinal system as well as to changes in the activation level of involved ... subjects Increase of gait cadence in the forward optic flow condition (above) and increase of stride length with the attentional strategy (below) The changes are computed as the percentage increase of...

Báo cáo toán học: " Structural, optical and magnetic studies of manganese-doped zinc oxide hierarchical microspheres by self-assembly of nanoparticles" docx

... Structural, optical, and magnetic studies of manganese-doped zinc oxide hierarchical microspheres by self-assembly of nanoparticles Yao-Ming Hao1, Shi-Yun ... study, a series of manganese [Mn]-doped zinc oxide [ZnO] hierarchical microspheres [HMSs] are prepared by hydrothermal method only using zinc acetate and manganese acetate as precursors and ethylene ... 41 Rekha K, Nirmala M, Nair M, Anukaliani A: Structural, optical, photocatalytic and antibacterial activity of zinc oxide and manganese doped zinc oxide nanoparticles Physica B 2010, 405:3180-3185...

báo cáo hóa học:" Structural, optical and magnetic studies of manganese-doped zinc oxide hierarchical microspheres by self-assembly of nanoparticles" docx

The Modulation of Optical Property and its Correlation with Microstructures of ZnO Nanowires ppt

... activity of ZnO nanowires (grown in the mixed gas stream) is higher than that of the ZnO Fig Curves of the degradation rate of MO and UV irradiation time with the photocatalyst of the ZnO nanowires ... drastically inﬂuence the morphology and properties of grown ZnO nanowires However, the fabrication of ZnO nanowires with large volume of oxygen vacancies often confronts the problems of tedious operation ... far, there is still controversy of whether the oxygen vacancies or other native defects affect the properties of ZnO nanowires [12–14] As for the photoluminescence (PL) property of ZnO nanowires, ...

Báo cáo lâm nghiệp: "Measurement of free shrinkage at the tissue level using an optical microscope with an immersion objective: results obtained for Douglas ﬁr (Pseudotsuga menziesii) and spruce (Picea abies)" potx

... measure the free shrinkage of wood tissues in the transversal plane (radial and tangential) The experimental system involves use of an optical microscope with reﬂective light and two objectives with ... 3) The mechanics of continuum media tells us that these two images are separated locally by translation, rotation and deformation The latter, induced by shrinkage, is in this case the datum of ... on the reference conﬁguration (saturated state) are called A0 and A, and the position of these two material points identiﬁed on the generic conﬁguration (airdry state) are called M0 and M, the...

Báo cáo y học: ":Evaluation of the Patient Acceptable Symptom State in a pooled analysis of two multicentre, randomised, double-blind, placebo-controlled studies evaluating lumiracoxib and celecoxib in patients with osteoarthritis" pptx

... to PASS during and at the end of the study period and on patient achievement of sustained satisfaction by PASS Materials and methods A pooled analysis of data taken from two international, multicentre, ... and WOMAC™ LK 3.1 Function – was originally estimated using the least square means obtained from an analysis of covariance with study and baseline values as covariates Figure Patient flow diagram ... to PASS Assessment of patient satisfaction by means of the PASS criteria can be approached in a number of ways: satisfaction at the end of a study period, time taken to achieve patient satisfaction,...

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