Smartphone adapter time trial analysis: A low‐cost, time‐efficient method to disseminate quality photomicrographs at the microscope

2021 ◽  
Author(s):  
Matthew DaCunha ◽  
Tal Buntinx ◽  
Brian Hinds
Keyword(s):  
Efficient Method ◽  
Low Cost ◽  
Time Trial ◽  
Trial Analysis

scholarly journals Performance Prediction Equation for 2000 m Youth Indoor Rowing Using a 100 m Maximal Test

Biology ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1082
Author(s):  
Luiz Felipe da Silva ◽  
Paulo Francisco de Almeida-Neto ◽  
Dihogo Gama de Matos ◽  
Steven E. Riechman ◽  
Victor de Queiros ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Reliability Index ◽  
High Reliability ◽  
Low Cost ◽  
Time Trial ◽  
Prediction Equation ◽  
Daily Routine ◽  
Negative Consequences ◽  
Maximum Effort ◽  
And Performance

Background: The exhaustive series of tests undergone by young athletes of Olympic rowing prior to important competitions imply loads of physical stress that can ultimately impact on mood and motivation, with negative consequences for their training and performance. Thus, it is necessary to develop a tool that uses only the performance of short distances but is highly predictive, offering a time expectancy with high reliability. Such a test must use variables that are easy to collect with high practical applicability in the daily routine of coaches. Objective: The objective of the present study was to develop a mathematical model capable of predicting 2000 m rowing performance from a maximum effort 100 m indoor rowing ergometer (IRE) test in young rowers. Methods: The sample consisted of 12 male rowing athletes in the junior category (15.9 ± 1.0 years). A 100 m time trial was performed on the IRE, followed by a 2000 m time trial 24-h later. Results: The 2000 m mathematical model to predict performance in minutes based on the maximum 100 m test demonstrated a high correlation (r = 0.734; p = 0.006), strong reliability index (ICC: 0.978; IC95%: [0.960; 0.980]; p = 0.001) and was within usable agreement limits (Bland -Altman Agreement: −0.60 to 0.60; 95% CI [−0.65; 0.67]). Conclusion: The mathematical model developed to predict 2000 m performance is effective and has a statistically significant reliability index while being easy to implement with low cost.

An Efficient Method for Rapid Fabrication Using Low Cost 3D Printer

2021 ◽  
pp. 537-544
Author(s):  
Mohammed Balfaqih ◽  
Soltan A. Alharbi ◽  
Fahad Alfarsi ◽  
Osama Alharbi ◽  
Faisal Alsalmi
Keyword(s):  
Efficient Method ◽  
Low Cost ◽  
3D Printer ◽  
Rapid Fabrication

Quantity Detection of Kernels in an Ear Corn Based on Machine Vision

2012 ◽  
Vol 246-247 ◽  
pp. 279-285 ◽  
Author(s):  
Chang Qing Liu ◽  
Bing Qi Chen ◽  
Yang Liu ◽  
Tao Zha
Keyword(s):  
Machine Vision ◽  
Efficient Method ◽  
Low Cost ◽  
Simple Device ◽  
Contour Extraction ◽  
Object Processing ◽  
Average Accuracy ◽  
High Efficient ◽  
Background Segmentation ◽  
Corn Kernels

A high efficient method is provided to count the number of kernels in an ear corn. PC camera captured a sequence of images around an ear corn using a simple device. The Otsu's algorithm was applied for background segmentation. An object processing area was obtained after contour extraction. The x-direction cumulative histogram was used to extract every row of the ear corn. The y-direction cumulative histogram was used to detect the number of corn kernels in a row. The number of rows was got by matching the edge of the current ear row with the first one. The time of detecting kernels for an ear corn was below 2 minutes and the average accuracy was about 95% in experiment. It shows that this method can detect the quantity of kernels directly in an ear corn quickly and effectively using a low-cost device.

A Highly Efficient Method for the Bromination of Alkenes, Alkynes and Ketones Using Dimethyl Sulfoxide and Oxalyl Bromide

Synthesis ◽  
2018 ◽  
Vol 50 (21) ◽  
pp. 4325-4335 ◽  
Author(s):  
Hongyu Tian ◽  
Baoguo Sun ◽  
Rui Ding ◽  
Jiaqi Li ◽  
Wenyi Jiao ◽  
...  
Keyword(s):  
Dimethyl Sulfoxide ◽  
Efficient Method ◽  
Low Cost ◽  
Reaction Times ◽  
Attractive Alternative ◽  
Mild Conditions ◽  
Highly Efficient

The pairing of DMSO and oxalyl bromide is reported as a highly efficient brominating reagent for various alkenes, alkynes and ketones. This bromination approach demonstrates remarkable advantages, such as mild conditions, low cost, short reaction times, provides excellent yields in most cases and represents a very attractive alternative for the preparation of dibromides and α-bromoketones.

scholarly journals Mouse Academy: high-throughput automated training and trial-by-trial behavioral analysis during learning

2018 ◽  
Author(s):  
Mu Qiao ◽  
Tony Zhang ◽  
Cristina Segalin ◽  
Sarah Sam ◽  
Pietro Perona ◽  
...  
Keyword(s):  
Decision Making ◽  
High Throughput ◽  
Generalized Linear Model ◽  
Low Cost ◽  
Behavioral Data ◽  
Single Trial ◽  
Unsupervised Analysis ◽  
Trial Analysis ◽  
Animal Training ◽  
Multiple Trials

ABSTRACTProgress in understanding how individual animals learn will require high-throughput standardized methods for behavioral training but also advances in the analysis of the resulting behavioral data. In the course of training with multiple trials, an animal may change its behavior abruptly, and capturing such events calls for a trial-by-trial analysis of the animal’s strategy. To address this challenge, we developed an integrated platform for automated animal training and analysis of behavioral data. A low-cost and space-efficient apparatus serves to train entire cohorts of mice on a decision-making task under identical conditions. A generalized linear model (GLM) analyzes each animal’s performance at single-trial resolution. This model infers the momentary decision-making strategy and can predict the animal’s choice on each trial with an accuracy of ~80%. We also assess the animal’s detailed trajectories and body poses within the apparatus. Unsupervised analysis of these features revealed unusual trajectories that represent hesitation in the response. This integrated hardware/software platform promises to accelerate the understanding of animal learning.

scholarly journals Capture and Purification of Plant Genomic DNA on a Readily-available Cellulose Matrix

2017 ◽  
Author(s):  
Megan M. Thompson ◽  
Estelle M. Hrabak
Keyword(s):  
Arabidopsis Thaliana ◽  
Nucleic Acids ◽  
Plant Species ◽  
Efficient Method ◽  
Genomic Dna ◽  
Low Cost ◽  
Long Term Storage ◽  
Cellulose Matrix ◽  
Term Storage

AbstractWhatman FTA ®Cards are a fast and efficient method for capturing and storing nucleic acids but are cost-prohibitive for some researchers. We developed a method that substitutes readily-available cellulose-based paper and homemade washing buffer for commercial FTA ®Cards and FTA ®Purification Reagent. This method is suitable for long-term storage of DNA from many plant species, including Arabidopsis thaliana, prior to purification and PCR.Method SummaryHere we report a low-cost method for long-term storage of plant genomic DNA on a readily available cellulose matrix.

scholarly journals Efficient method of eliminating accidental damage of sewer tunnel

2018 ◽  
Vol 230 ◽  
pp. 02011
Author(s):  
Dmitriy Goncharenko ◽  
Olga Starkova ◽  
Alevtyna Aleinikova ◽  
Yulyia Kolomiiets ◽  
Oksana Greenchuk
Keyword(s):  
Efficient Method ◽  
Low Cost ◽  
Economic Indicators ◽  
Secondary Lining

The article is devoted to the development of technological and organizational solutions for elimination of local emergency damage to sewage tunnel collectors. In the article, conditions of operation and constructions of the sewage tunnel collector destroyed by corrosion are investigated on Grekovska street in Kharkiv, Ukraine; the methods of production of repair and restoration works are analyzed in this article; technological and organizational solutions have been developed for the liquidation of emergency damage to sewage tunnel collectors, taking into account technical, organizational and economic indicators. Thus, when comparing recovery options by different methods, it is noted that the proposed technology is more economically feasible in view of the relatively low cost of the material for this solutions. At the same time, the duration of the work by the proposed method of extrusion by introducing a secondary lining with anticorrosive properties will be reduced by 30%.

scholarly journals Synthesis of 1,2,3 triazole-linked benzimidazole through a copper-catalyzed click reaction

2019 ◽  
Vol 25 (1) ◽  
pp. 122-129
Author(s):  
Mohammad Bakherad ◽  
Ali Keivanloo ◽  
Amir H. Amin ◽  
Amir Farkhondeh
Keyword(s):  
Efficient Method ◽  
Click Reaction ◽  
Low Cost ◽  
Reaction Times ◽  
Cycloaddition Reactions

AbstractAn efficient method has been developed for the synthesis of 1,2,3 triazole-linked benzimidazole through a copper-catalyzed click reaction in ethanol at 50°C. A broad range of aromatic azides were successfully reacted with n-propynylated benzimidazole via copper-catalyzed azide-alkyne cycloaddition reactions in the absence of a ligand. This method offers many advantages including short reaction times, low cost, and simple purification procedures.

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