Urban network of China from the perspective of population mobility: Three-dimensional co-occurrence of nodes and links

2021 ◽  
pp. 0308518X2199781
Author(s):  
Xinyue Luo ◽  
Mingxing Chen
Keyword(s):  
Three Dimensional ◽  
Geographical Distance ◽  
Two Dimensional ◽  
Population Mobility ◽  
Urban Network ◽  
Urban Networks ◽  
Low Level ◽  
Medium Level ◽  
High Level ◽  
External Connections

The nodes and links in urban networks are usually presented in a two-dimensional(2D) view. The co-occurrence of nodes and links can also be realized from a three-dimensional(3D) perspective to make the characteristics of urban network more intuitively revealed. Our result shows that the external connections of high-level cities are mainly affected by the level of cities(nodes) and less affected by geographical distance, while medium-level cities are affected by the interaction of the level of cities(nodes) and geographical distance. The external connections of low-level cities are greatly restricted by geographical distance.

The Analysis of Students Mathematic Problem Solving Ability During Online Learning

2021 ◽  
Vol 6 (1) ◽  
pp. 62-68
Author(s):  
M. Arif Wahyu Daroini ◽  
Tri Novita Irawati ◽  
Sholahudin Al Ayubi
Keyword(s):  
Online Learning ◽  
Problem Solving ◽  
Mathematical Problem ◽  
Mathematical Problem Solving ◽  
Ability Level ◽  
Maximum Score ◽  
Low Level ◽  
Medium Level ◽  
Good For ◽  
High Level

This study aims to determine students' mathematical problem solving abilities based on their high, medium and low level of ability in solving the problem. This type of research is descriptive qualitative. The data collecting method that use are observation, test, and interview. The results showed that the problem-solving ability of high-level subjects reached an average of 75%, the problem-solving abilities of medium-level subjects reached an average of 67%, the problem-solving abilities of low-level subjects reached an average of 67%, out of a maximum score of 100. The result of interview, ability level high, medium, and low, students are capable and good even though it does not reach 100%. So, it can be concluded that high, medium, and low level abilities are good for going through the problem solving ability indicator.  Keywords: problem solving, online learning  

scholarly journals Tsunami risk levels mapping in Puger Sub-District, Jember Regency

2021 ◽  
Vol 930 (1) ◽  
pp. 012094
Author(s):  
E P Anindia ◽  
E Hidayah ◽  
R U A Wiyono
Keyword(s):  
Tsunami Hazard ◽  
Weighting Method ◽  
Risk Levels ◽  
Low Level ◽  
Prone Area ◽  
Medium Level ◽  
Run Up ◽  
Hazard Level ◽  
Tsunami Run Up ◽  
High Level

Abstract Puger sub-district is categorized as a tsunami-prone area because of its location in the South Coast, directly facing the Indian Ocean, which is the meeting point for two active tectonic plates. The active plate zone is prone to causing earthquakes that raise tsunamis. This article will describe the tsunami hazard and vulnerability level in Puger sub-district using the Geographic Information System (GIS) application. The method in this study uses a weighted overlay method. The weighting method is carried out to determine the level of tsunami hazard and vulnerability by following the weighting criteria in previous studies. Physical vulnerability criteria include land elevation, slope, beach type, land use, coastline distance, and rivers. The tsunami hazard level is determined based on the tsunami run-up map from previous studies. Based on the results of the risk mapping, it was found that there were five risk categories in Puger sub-district, namely the very low level (13.90 Ha), low level (271.99 Ha), medium level (7133.25 Ha), high level (644.22 Ha), and very high level (23.29 Ha).

scholarly journals Empowerment of Women in Fisheries: Evidence from Ganjam District of Odisha

2020 ◽  
pp. 61-68
Author(s):  
Priyanka Patra ◽  
S. S. Dana ◽  
S. B. Ramya Lakshmi
Keyword(s):  
The State ◽  
Composite Score ◽  
Women Empowerment ◽  
Low Level ◽  
Inland Fisheries ◽  
Medium Level ◽  
Good Concentration ◽  
Different Dimensions ◽  
High Level ◽  
Ganjam District

The present study was conducted to assess the empowerment level of women in the fisheries sector in the Ganjam district of Odisha. In the inland sector, the highest numbers of women are of the fishermen population in Ganjam district i.e. 29476 out of a total 263514 number of female fisheries population of the state (Directorate of Fisheries, Government of Odisha, 2015). A very good concentration of women is involving in fisheries activities in this district. But when sector-specific cases are concerned, there are very few studies found where different dimensions of women empowerment through fisheries are discussed. The results revealed that the majority of the respondents (66.60%) in the Inland sector are grouped under a medium level of empowerment followed by low and high-level empowerment (16.70%). These results indicated that there is a significant move towards the empowerment of women in the case of inland fisheries. However, in the Marine sector equal percentage of respondents belonged to both medium and high levels of women empowerment i.e. each 30 (50.00%) and low level of empowerment was nil which indicates the level of empowerment in the marine fisheries activities compared to inland fisheries. With this background, the overall empowerment score was categorized into the low, medium, and high level of empowerment where a majority of the respondents (71.6%) were under the medium level of empowerment followed by the equal percentage of the low and high level of empowerment (14.2%). The composite score of empowerment of women is also encouraging. However, efforts are needed to bring women empowerment from medium level to a higher level. There is also a need to uplift a section of women who are still in the lower category of empowerment.

scholarly journals The influence of the dimensions of perfectionism on the formation of emotional maladjustment

2021 ◽  
Keyword(s):  
Medical Students ◽  
Medical Profession ◽  
Compensatory Mechanisms ◽  
Daily Stress ◽  
Low Level ◽  
Medical Environment ◽  
Medium Level ◽  
Level Of Training ◽  
Main Components ◽  
High Level

The growing complexity of the medical profession places increased demands on the future physician’s adaptive capacity. The problem of the relationship of the aff ective spectrum disorders with such a dysfunctional personality trait as perfectionism is intensively discussed in clinical psychology. Medical students are in a more diffi cult position than others. It’s related to their future profession requires a high level of training and also associated with a high responsibility for the lives and patient’s health. High pace, intense workload, stress of life makes increased demands on the compensatory mechanisms of the medical student’s psyche, failure of which leads to psychological and social confl icts. The paper presents an empirical study of the severity of symptoms of depression, anxiety, and daily stress as the main components of emotional maladaptation, depending on the level of perfectionism in the medical student environment in conditions of increased psychological stress and pre-examination stress. Subjects with a low level of perfectionism are as emotionally prosperous as possible - they have no signs of depression in 89% of cases. In the group of subjects with a medium level of perfectionism, the number of respondents in whom there are no signs of depression decreases and the number with mild, moderate and high levels of depression increases. In the group with a high level of perfectionism, the number of people without signs of depression is half of the whole group, a sharp increase in the number of subjects with moderate and high levels of depression. The level of depression in all three groups is statistically signifi cantly diff erent from each other: the lowest in the group with a low level of perfectionism and the highest in the group with a high level of perfectionism (p <0.001). Positive correlations between the general indicator of perfectionism, its separate parameters and indicators of depression, anxiety and daily stress in the studied groups are revealed. The data obtained as a result of the study confi rm the high level of emotional maladaptation of medical students. In the academic student medical environment, respondents with a pronounced level of perfectionism experience more high-intensity, daily stress (both in the interpersonal and academic spheres of student life) compared to respondents with moderate and low levels of perfectionism.

EM3DANI: A Julia package for fully anisotropic 3D forward modeling of electromagnetic data

Geophysics ◽  
2021 ◽  
pp. 1-45
Author(s):  
Ronghua Peng ◽  
Bo Han ◽  
Yajun Liu ◽  
Xiangyun Hu
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Anisotropic Media ◽  
Forward Modeling ◽  
Hydrocarbon Exploration ◽  
Third Party ◽  
Low Level ◽  
Numerical Computing ◽  
Computationally Intensive ◽  
High Level

Forward modeling is vital for three-dimensional (3D) inversion and interpretation of electromagnetic (EM) data in anisotropic media, which is one of the major challenges in the field of EM geophysics. However, there are few freely available 3D codes that are capable of modeling EM responses in fully anisotropic media. Besides, most of the existing 3D EM codes are written in low-level languages such as C and Fortran, making them difficult to read, maintain and extend. Taking advantage of recent progress in computer technology and numerical methods, we have developed an open-source package for forward modeling of frequency-domain EM fields in a fully 3D anisotropic earth (EM3DANI) using the Julia language, a relatively young, high-level programming language with a focus on high performance. Based on a mimetic finite-volume (MFV) discretization of the governing equations, the modeling algorithm is expressed in an abstract form in terms of matrices/vectors and thus can be easily implemented by using any high-level language commonly-used for numerical computing. Existing libraries written in low-level languages can be easily integrated into a Julia code without the so-called two-language problem, thus we have exploited several mature third-party packages to deal with computationally intensive parts of the forward modeling, which guarantees high stability and efficiency. We have elaborated the structure of the package, paying special attention to code usability, readability and extendability, while striving to retain versatility and high performance. The effectiveness of the code is demonstrated through two 1D synthetic examples for magnetotellurics (MT) and controlled-source electromagnetics (CSEM) problems, respectively. High accuracy and efficiency can be achieved for both 1D examples. We further present a 3D example mimicking marine CSEM survey scenario for hydrocarbon exploration. The simulation results indicate that the effect of the anisotropy on forward responses is significant, and can be comparable to that of the target reservoir.

scholarly journals Innovation Search Scope, Technological Complexity, and Environmental Turbulence: A N-K Simulation

2019 ◽  
Vol 11 (16) ◽  
pp. 4279
Author(s):  
Fei Li ◽  
Jin Chen ◽  
Ying Ying
Keyword(s):  
Fitness Landscape ◽  
Environmental Turbulence ◽  
Landscape Model ◽  
Business World ◽  
The Real ◽  
Low Level ◽  
Technological Complexity ◽  
Medium Level ◽  
Dynamic Landscapes ◽  
High Level

This paper discusses the effects of different innovation search scopes on the performance of the N-K fitness landscape model with a focus on its contextual factors of technology complexity and environmental turbulence. Results show that the medium-level search scope has a significantly better outcome than the low-level search scope, especially when the technological complexity is high, while the high-level search scope would not provide a statistically significant advantage. After introducing the turbulent range and rapidity into the N-K model, we extend the model into a dynamic one to simulate better the real turbulent business world. The results of the simulation in dynamic landscapes show that the higher degree of environmental turbulence causes a higher search scope to become more valuable.

scholarly journals Análisis de la distancia recorrida en pádel en función del nivel de juego y el número de puntos por partido (Analysis of distance covered in padel based on level of play and number of points per match)

Retos ◽  
2020 ◽  
pp. 205-209
Author(s):  
Jesús Ramón-Llín ◽  
José Guzmán ◽  
Salvador Llana ◽  
Goran Vuckovic ◽  
Diego Muñoz ◽  
...  
Keyword(s):  
Average Distance ◽  
Active Phase ◽  
Systematic Observation ◽  
Low Level ◽  
El Sistema ◽  
Medium Level ◽  
Rest Time ◽  
Playing Time ◽  
High Level ◽  
Passive Phase

La distancia que recorren los jugadores por partido supone una forma de cuantificar el volumen de carga externa del juego, y su estudio tiene una gran aplicación en la planificación del entrenamiento deportivo. El objetivo de este estudio fue analizar la distancia recorrida en diferentes fases del partido (activa y pasiva) y su relación con el número de puntos disputados y nivel de juego de los deportistas. La muestra estuvo compuesta por 108 jugadores federados de pádel (edad media = 33.81 ± 6.72 años). Se analizaron, a través de observación sistemática con el sistema SAGIT, un total 4406 puntos correspondientes a 27 partidos de pádel. Los partidos fueron divididos en tres niveles de competición: nivel alto (9 partidos; 1158 puntos), nivel medio (9 partidos; 1352 puntos) y nivel bajo (9 partidos; 1044 puntos). Los resultados mostraron como los jugadores de pádel recorren una distancia media de 11 metros por punto y de 2900 metros por partido. Esta distancia total está dividida en un 51 % de fase activa (tiempo de juego) y un 49 % de fase pasiva (tiempo de descanso). Los jugadores de nivel medio recorrieron casi 400 metros más en la fase activa que los jugadores de nivel alto y casi 900 metros más que los jugadores de nivel bajo. Además, el número de puntos disputados correlacionó de forma positiva y significativamente en la distancia recorrida por los jugadores. Abstract. Volume of game external load can be calculated through distance covered by players per match and its study has a great application in the planning of sports trainings. The aim of this study was to analyze distance covered in passive and active game phases and its relation with number of points played and players’ level. Sample was made up of 108 federated padel players (Average age = 33.81 ± 6.72 years old). A total of 4406 points corresponding to 27 padel matches were analyzed through systematic observation with the SAGIT system. Matches were divided into three levels of competition: high level (9 matches; 1158 points), medium level (9 matches; 1352 points) and low level (9 matches; 1044 points). The results showed that padel players covered an average distance of 11 meters per point and 2900 meters per game. This total distance is divided into 51% active phase (playing time) and 49% passive phase (rest time). The mid-level players recorded almost 400 meters more in the active phase than the high-level players and almost 900 meters more than the low-level players. In addition, number of points correlated positively and significantly with the distance covered by the players.

scholarly journals The Circulation Response of a Two-Dimensional Frontogenetic Model to Optimized Moisture Perturbations

2020 ◽  
Author(s):  
Reuben Demirdjian ◽  
Richard Rotunno ◽  
Bruce Cornuelle ◽  
Carolyn A. Reynolds ◽  
James D. Doyle
Keyword(s):  
Three Dimensional ◽  
Static Stability ◽  
Two Dimensional ◽  
Mixing Ratio ◽  
Physical Processes ◽  
Low Level ◽  
Nonlinear Growth ◽  
Idealized Model ◽  
The Impact ◽  
Transverse Circulation

AbstractAn analysis of the influence and sensitivity of moisture in an idealized two-dimensional moist semigeostrophic frontogenesis model is presented. A comparison between a dry (relative humidity, RH=0%) and moist (RH=80%) version of the model demonstrates that the impact of moisture is to increase frontogenesis, strengthen the transverse circulation (??????,??), generate a low-level potential-vorticity anomaly and develop a low-level jet. The idealized model is compared to a real case simulated with the full-physics three-dimensional Coupled Ocean-Atmospheric Mesoscale Prediction System (COAMPS) model establishing good agreement and thereby confirming that the idealized model retains the essential physical processes relevant for improving understanding of midlatitude frontogenesis. Optimal perturbations of mixing ratio are calculated to quantify the circulation response of the model through the computation of singular vectors, which determines the fastest-growing modes of a linearized version of the idealized model. The vertical velocity is found to respond strongly to initial-condition mixing-ratio perturbations such that small changes in moisture lead to large changes in the ascent. The progression of physical processes responsible for this nonlinear growth is (in order): jet/front transverse circulation → moisture convergence ahead of the front → latent heating at mid-to-low elevations → reduction in static stability ahead of the front → strengthening of the transverse circulation, and the feedback cycle repeats. Together, these physical processes represent a pathway by which small perturbations of moisture can strongly impact a forecast involving midlatitude frontogenesis.

scholarly journals Psychological Causes of Corruption: The Role of Worries

2021 ◽  
Vol 22 (1) ◽  
pp. 11-34
Author(s):  
Anna Mironova ◽  
Alexander Tatarko
Keyword(s):  
Structural Equation ◽  
Equation Modeling ◽  
World Value Survey ◽  
Low Level ◽  
The People ◽  
Medium Level ◽  
Corruption Perception ◽  
Corrupt Behavior ◽  
High Level

This study is devoted to answering two questions: (1) Do individuals’ worries and sufferings correlate with the acceptability of corruption from their perspectives? (2) Does this correlation differ by country in terms of corruption levels? We focus on analyzing the correlation between macro and micro worries, on one hand, and individual acceptability of corrupt behavior, on the other hand. This study is based on the data from the 6th-wave World Value Survey. We identified three groups of countries based on the corruption perception index: countries with low-level corruption (Australia, The Netherlands, New Zealand, Singapore, and Sweden), countries with medium-level corruption (Belarus, China, South Korea, Malaysia, and Romania), and countries with high-level corruption (Russia, Brazil, Colombia, Peru, and Thailand). For the purposes of our analysis, we used structural equation modeling. We have found that macro and micro worries are significantly correlated with the acceptability of corruption. Our analysis shows that the more the people worry about themselves or their families, the more they accept corruption. The people who worry about society are more likely to disapprove of corruption. However, the significance of these links varies, depending on the group of countries. For the countries with low-level corruption, the correlation is significant only for the link between micro worries and the acceptability of corruption. The countries with high-level corruption show a significant correlation only for the link between macro worries and the acceptability of corruption. For countries with medium-level corruption and for Russia, the acceptability of corruption is significantly correlated with both micro and macro worries.

scholarly journals Critical Thinking Level among Medical Sciences Students in Iran

2020 ◽  
Vol 2020 ◽  
pp. 1-18
Author(s):  
Faranak Jafari ◽  
Seyyed Mohsen Azizi ◽  
Ali Soroush ◽  
Alireza Khatony
Keyword(s):  
Critical Thinking ◽  
Final Analysis ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Planning System ◽  
Flow Diagram ◽  
Medical Sciences ◽  
Low Level ◽  
Medium Level ◽  
High Level

Background. Critical thinking is one of the most important missions of the educational planning system of medical sciences universities around the world. Hence, identifying the level of critical thinking skills and tendency of medical sciences students to think critically is of great importance. Therefore, the aim of this systematic review was to examine the critical thinking level in medical sciences students in Iran. Methods. To extract published studies in the field of critical thinking in Iran, a search was conducted in the databases of PubMed, Web of Science, Scopus, ERIC, and Magiran. The keywords of critical thinking, medical sciences, and Iran were used for the purpose of the search in the two languages of Persian and English and without any time limit. The PRISMA flow diagram was applied for the selection of articles, and the Newcastle–Ottawa Scale was used for the evaluation of these papers. Results. After evaluating the quality of searched articles, 80 articles were finally selected for the final analysis. The total sample of the articles included 12,578 students. The results indicated that out of 51 articles conducted in the field of critical thinking skills, 48 articles reported these skills at a low level, 2 papers at a medium level, and only 1 paper at a high level in the medical sciences students. Among 29 articles in the field of the level of critical thinking disposition, 13 articles reported their tendency level at a low level, 11 articles at a medium level, and 5 articles at a high level. Conclusion. In general, based on most articles, the level of critical thinking skills in the medical sciences students in Iran was reported to be at a low level and their tendency to critical thinking at a moderate level and low level. Therefore, given the importance of critical thinking for medical sciences students, future studies should consider factors influencing the increase of the critical thinking level in these students. In this regard, formation of some training workshops can also be promising. Furthermore, reviewing the medical sciences curriculum should be taken into consideration by the policymakers and educational planners so as to strengthen the level of critical thinking in the medical sciences students.

Sign in / Sign up

Export Citation Format

Share Document