scholarly journals The Heterogenous Demand for Urban Parks between Home Buyers and Renters: Evidence from Beijing

2020 ◽  
Vol 12 (21) ◽  
pp. 9058
Author(s):  
Tianzheng Zhang ◽  
Yingxiang Zeng ◽  
Yingjie Zhang ◽  
Yan Song ◽  
Hongxun Li
Keyword(s):  
Urban Parks ◽  
Poor Quality ◽  
Internal Quality ◽  
Property Management ◽  
Management Service ◽  
Hedonic Price ◽  
Price Model ◽  
The Difference ◽  
Different Levels

Many studies have confirmed that there is demand among urban residents and renters for urban parks. Moreover, as renters and home buyers have very different levels of ownership over their housing resources, their demands for amenities can be heterogenous. To discover and identify such heterogeneous demands is worthy of attention. Using the micro-housing resale transactions and listing data for housing leases in Beijing during 2019, this paper explores the difference between the demand for urban parks among home buyers and renters outside the community from the perspective of the internal quality of the community by using the hedonic price model (HPM). Specifically, from the dimension of the property management service fee and greening rate, we find that for home buyers, compared to residents living in relatively poor-quality communities, a better-quality community will reduce the demand for urban parks outside the community. Conversely, for renters, the higher the quality of the community is, the higher the demand for urban parks outside the community will be.

The Quality Analysis of Hallux Valgus Videos on YouTube

2021 ◽  
Author(s):  
Enes Sari ◽  
Levent FAZLI Umur
Keyword(s):  
Hallux Valgus ◽  
Information Quality ◽  
Statistical Significance ◽  
Poor Quality ◽  
Quality Analysis ◽  
Accurate Information ◽  
Youtube Videos ◽  
The Mean ◽  
The Difference

BACKGROUND:The aim of this study was to evaluate the information quality of YouTube videos on hallux valgus. METHODS:A YouTube search was performed using the keyword 'hallux valgus' to determine the first 300 videos related to hallux valgus. A total of 54 videos met our inclusion criteria and evaluated for information quality by using DISCERN, Journal of the American Medical Association (JAMA) and hallux valgus information assessment (HAVIA) scores. Number of views, time since the upload date, view rate, number of comments, number of likes, number of dislikes, video power index (VPI) values were calculated to determine video popularity. Video length (sec), video source and video content were also noted. The relation between information quality and these factors were statistically evaluated. RESULTS:The mean DISCERN score was 30.35{plus minus}11.56 (poor quality) (14-64), the mean JAMA score was 2.28{plus minus}0.96 (1-4), and the mean HAVIA score was 3.63{plus minus}2.42 (moderate quality) (0.5-8.5). Although videos uploaded by physicians had higher mean DISCERN, JAMA, and HAVIA scores than videos uploaded by non-physicians, the difference was not statistically significant. Additionally, view rates and VPI values were higher for videos uploaded by health channels, but the difference did not reach statistical significance. A statistically significant positive correlation was found between video length and DISCERN (r= 0.294, p= 0.028), and HAVIA scores (r= 0.326, p= 0.015). CONCLUSIONS:This present study demonstrated that the quality of information available on YouTube videos about hallux valgus was low and insufficient. Videos containing accurate information from reliable sources are needed to educate patients on hallux valgus, especially in less frequently mentioned topics such as postoperative complications and healing period.

scholarly journals Non-Parametrical Canonical Analysis of Quality-Related Characteristics of Eggs of Different Varieties of Native Hens Compared to Laying Lineage

Animals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 153 ◽  
Author(s):  
Antonio González Ariza ◽  
Francisco Navas González ◽  
Ander Arando Arbulu ◽  
José León Jurado ◽  
Cecilio Barba Capote ◽  
...  
Keyword(s):  
Egg Quality ◽  
Age Groups ◽  
Individual Identification ◽  
Internal Quality ◽  
Control Group ◽  
External Quality ◽  
Shell Weight ◽  
Almost All ◽  
Different Levels

The aim of the present study is to characterize the productive capability of Utrerana and to compare the relationships among parameters determining the internal and external quality of the egg, through canonical correlation analysis. A flock of 68 Utrerana hens and a control group of Leghorn hens (n = 17) were housed individually to allow individual identification of eggs and for the assessment of egg quality characteristics. Almost all variables showed differences when both breeds were compared, except for white height, yolk diameter, yolkL* and yolk pH (p > 0.05). Only minor diameter, white height, yolkL*, yolka*, and shell weight reported significant differences between laying age groups. White height, yolk color, and almost all yolk color coordinates were significantly different (p < 0.05) for period and month. Egg and white weight reached highest significantly different levels for the fourth and fifth time that the hens laid an egg. External quality-related traits are better predictors of internal quality-related traits than vice versa, enabling the implementation of an effective noninvasive method for internal quality determination and egg classification aimed at suiting the needs of consumers.

Life Cycle and Growth of Sericostoma personatum Spence (Trichoptera, Sericostomatidae) in a Danish Spring

1973 ◽  
Vol 4 (4) ◽  
pp. 323-327 ◽  
Keyword(s):  
Life Cycle ◽  
Growth Retardation ◽  
Poor Quality ◽  
The Poor ◽  
Spring Area ◽  
The Difference ◽  
Slight Growth ◽  
Lower Temperature

AbstractIn a Danish spring the life cycle of Sericostoma personatum Spence (syn. S. pedemontanum Mac-Lachlan) took three years. A comparison is made with a I½ year life cycle reported by Elliott (I969). The poor quality of the food and lower temperature in the spring area are suggested as explanations of the difference. A slight growth retardation was found for all three year classes in winter and was referred to lower temperatures.

scholarly journals Correlating Coating Quality of Coverage with Rheology for Mica-Based Paints

2020 ◽  
Vol 30 (1) ◽  
pp. 119-129
Author(s):  
Jacob Anderson ◽  
Shailesh Shori ◽  
Esmaiel Jabbari ◽  
Harry J. Ploehn ◽  
Francis Gadala-Maria ◽  
...  
Keyword(s):  
Shear Stress ◽  
Hysteresis Loops ◽  
Poor Quality ◽  
Gradual Change ◽  
Visual Appearance ◽  
The Difference ◽  
Good Strain ◽  
Frequency Sweeps ◽  
Visual Properties

Abstract This paper examines the relationship between rheology and the qualitative appearance of dried, mica-based paint coatings used in the aerospace industry. The goal is to identify key rheological characteristics indicative of poor coating visual appearance, providing a screening tool to identify unsatisfactory paint formulations. Four mica paints were studied, having coating visual appearances ranging from very poor to very good. Strain sweeps indicated that the poor-quality paints have a smaller % strain midpoint in the linear visco-elastic range; while the good-quality paints have a lower G’/G” cross-over point in frequency sweeps. Thixotropy experiments utilizing single and multiple-loop hysteresis cycles plotting shear stress as a function of shear rate showed that the base mica paints with good appearance had nearly constant, reversible profiles in the forward and the backward directions; while the mica paints with poor appearance were irreversible with a noticeable gradual change in shear stress as more loops are run. The difference in area between the forward and the reverse curves was determined, leading to a quantifiable criterion that can differentiate good paints from poor paints with significance testing. This work would establish the first rheology model using hysteresis loops to predict the visual properties of mica-based paints.

scholarly journals Need Assessment for the Professional Development of Teachers in Content Knowledge of Instructional Planning and Strategies

2019 ◽  
Vol 36 (1) ◽  
Author(s):  
Sidra Rizwan
Keyword(s):  
Content Knowledge ◽  
Secondary School Teachers ◽  
Sampling Procedure ◽  
Professional Standards ◽  
Instructional Planning ◽  
The Difference ◽  
Multistage Sampling ◽  
Practical Field ◽  
Different Levels

In 2009 the National professional standards were introduced for teachersin Pakistan to determine a nationwide quality of teaching. Thesestandards focus on the quality of teacher preparation from this timeonwards; the present study was initiated to determine the needs of theworkforce who are already in the practical field and how they mayachieve the established standard. Therefore, in the light of the prescribedstandard “Instructional Planning and Strategies (IPS)”this articleinvestigated the levels of content knowledge of IPS possessed by theteachers in secondary schools; it further determined the difference in thecontent knowledge levels of urban & rural, male& female teachersregarding IPS. It was a survey type quantitative study with a populationspread of secondary school teachers (SSTs) working in the fourprovinces and Federal Capital. A multistage sampling procedure wasadopted to collect data from 400 SSTs belonging to the population area.The need of the in-service teachers for acquiring content knowledge ofIPS was gauged through a questionnaire based on seven indicators ofcontent knowledge given in the professional standards; the teachersfurther prioritized their training needs in these defined areas. Moreover,data triangulation was done to ensure the validity of the study. The indepthanalysis revealed that SSTs possessed different levels on eachindicator of content knowledge of IPS but a meager number wascompetent in it. Independent sample “t-test” was applied to calculate thedifference between content knowledge of IPS possessed by the male&female, urban& rural SSTs.

Mitigating imperfect data validity in administrative data PSIs: a method for estimating true adverse event rates

2021 ◽  
Vol 33 (1) ◽  
Author(s):  
Bastien Boussat ◽  
Hude Quan ◽  
Jose Labarere ◽  
Danielle Southern ◽  
Chantal M Couris ◽  
...  
Keyword(s):  
Adverse Event ◽  
Poor Quality ◽  
Report Cards ◽  
Hospital Level ◽  
Quality Of Data ◽  
Imperfect Data ◽  
Data Validity ◽  
The Difference ◽  
Event Rates

Abstract Question Are there ways to mitigate the challenges associated with imperfect data validity in Patient Safety Indicator (PSI) report cards? Findings Applying a methodological framework on simulated PSI report card data, we compare the adjusted PSI rates of three hospitals with variable quality of data and coding. This framework combines (i) a measure of PSI rates using existing algorithms; (ii) a medical record review on a small random sample of charts to produce a measure of hospital-specific data validity and (iii) a simple Bayesian calculation to derive estimated true PSI rates. For example, the estimated true PSI rate, for a theoretical hospital with a moderately good quality of coding, could be three times as high as the measured rate (for example, 1.4% rather than 0.5%). For a theoretical hospital with relatively poor quality of coding, the difference could be 50-fold (for example, 5.0% rather than 0.1%). Meaning Combining a medical chart review on a limited number of medical charts at the hospital level creates an approach to producing health system report cards with estimates of true hospital-level adverse event rates.

scholarly journals Image Encryption Scheme Based on Multiscale Block Compressed Sensing and Markov Model

Entropy ◽  
2021 ◽  
Vol 23 (10) ◽  
pp. 1297
Author(s):  
Yuandi Shi ◽  
Yinan Hu ◽  
Bin Wang
Keyword(s):  
Compressed Sensing ◽  
Markov Model ◽  
Image Encryption ◽  
Sampling Rate ◽  
Coefficient Matrix ◽  
Poor Quality ◽  
Encryption Scheme ◽  
Block Compressed Sensing ◽  
The Difference

Many image encryption schemes based on compressed sensing have the problem of poor quality of decrypted images. To deal with this problem, this paper develops an image encryption scheme by multiscale block compressed sensing. The image is decomposed by a three-level wavelet transform, and the sampling rates of coefficient matrices at all levels are calculated according to multiscale block compressed sensing theory and the given compression ratio. The first round of permutation is performed on the internal elements of the coefficient matrices at all levels. Then the coefficient matrix is compressed and combined. The second round of permutation is performed on the combined matrix based on the state transition matrix. Independent diffusion and forward-backward diffusion between pixels are used to obtain the final cipher image. Different sampling rates are set by considering the difference of information between an image’s low- and high-frequency parts. Therefore, the reconstruction quality of the decrypted image is better than that of other schemes, which set one sampling rate on an entire image. The proposed scheme takes full advantage of the randomness of the Markov model and shows an excellent encryption effect to resist various attacks.

scholarly journals The Influence of Floor Type of Multi-Family Residential on the Transaction Price and the Estimation of Utility Ratio among Floors

2020 ◽  
pp. 65-77
Author(s):  
Ho-Wen Yang ◽  
Hsien-Chi Hsieh
Keyword(s):  
Residential Buildings ◽  
Hedonic Price Model ◽  
Parking Space ◽  
Price Difference ◽  
Hedonic Price ◽  
Price Model ◽  
Floor Price ◽  
Zigzag Pattern ◽  
The Difference ◽  
Transaction Price

In Taiwan’s multi-family residential, there are some problems in the previous research on the utility ratio among floors, including the failure to consider the difference in total number of floors, the excessive research scope and the residential price without deducting the parking space price. This research hopes to improve the problems of previous research, select 1,172 data of multi-family residential with total number of floors of 12, 15 and 22, and use the hedonic price model to establish the utility ratio among floors of residential buildings, and then compare the difference between absolute floors and relative floors on the transaction price. The empirical results found that in the comparative analysis of absolute floors and relative floors, the variable of relative floors is significant, showing that the residential price is significantly different with different total number of floors, and the total number of floors is higher that the residential price is higher; the importance of absolute floors on the residential price isn’t high. In the model of utility ratio among floors of different total number of floors, the utility curves are distributed in zigzag pattern. Taking floor 4 as the base floor, the floor price difference is higher on floor 1 and near the top floors, and the floor price difference of other floors is not significant.

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