scholarly journals Farmland Transitions in China: An Advocacy Coalition Approach

Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 122
Author(s):  
Xiaoping Zhou ◽  
Xiaotian Li ◽  
Wei Song ◽  
Xiangbin Kong ◽  
Xiao Lu
Keyword(s):  
Linear Regression Analysis ◽  
Social Changes ◽  
Advocacy Coalition ◽  
Global Food Security ◽  
Transition Outcomes ◽  
Catalytic Role ◽  
Forest Transitions ◽  
Internal Mechanism ◽  
Using Data ◽  
Transition Policy

In recent decades, global social and economic development has resulted in substantial land-use transitions. This was first observed with respect to losses of forested land, attracting worldwide concern. Forest transitions have an important impact on global ecology, whilst farmland transitions are key in terms of global food security. However, research into farmland transitions is lacking, particularly with respect to mechanistic analysis. Using data on China’s farmland areas between 1950 and 2017, we investigated the transitional characteristics, and triggers, of farmland change through linear regression analysis. Furthermore, based on the Advocacy Coalition Framework, we reveal the internal mechanism of these transitions. Our main findings are as follows: (1) between 1950 and 2017, China’s farmland area exhibited significant growth, and there were two transitions, namely in 1984 and 2004; (2) macroscopic economic and social changes determine the overall evolution of the farmland area; (3) there were two advocacy coalitions in the farmland transition policy subsystem—the farmland supplement and farmland consumption coalitions; (4) under the influence of macroscopic economic and social development, external events play a catalytic role in the transitions, and relatively stable parameters have an indirect but lasting effect in terms of transition outcomes.

Sexual harassment and psychological complaints: student- and class-level associations

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
S Brolin Låftman ◽  
Y Bjereld ◽  
B Modin ◽  
P Löfstedt
Keyword(s):  
School Climate ◽  
Sexual Harassment ◽  
Linear Regression Analysis ◽  
Well Being ◽  
Negative Effects ◽  
School Class ◽  
School Aged Children ◽  
The Past ◽  
Class Level ◽  
Using Data

Abstract Background Students who are subjected to sexual harassment at school report lower psychological well-being than those who are not exposed. Yet, it is possible that the occurrence of sexual harassment in the school class is stressful also for those who are not directly targeted, with potential negative effects on well-being for all students. The aim was to examine whether sexual harassment at the student- and at the class-level was associated with students' psychological complaints. Methods Data from the Swedish Health Behaviour in School-aged Children (HBSC) of 2017/18 was used, with information from students aged 11, 13 and 15 years (n = 3,720 distributed across 209 classes). Psychological complaints were constructed as a summative index of four items capturing how often the student had felt low, felt irritable or bad tempered, felt nervous, or had difficulties to fall asleep, during the past six months (Cronbach's alpha=0.78). Sexual harassment at the student-level was measured by one item concerning bullying at school: “Other students have exposed me to sexual jokes”. Students who reported that this had happened at least “2 or 3 times a month” were classified as exposed to sexual harassment at school. Sexual harassment at the class-level was defined as the school class proportion of students exposed to sexual harassment, reported in per cent. Two-level linear regression analysis was applied. Results Students who had been exposed to sexual harassment had higher levels of psychological complaints (b = 2.74, p < 0.001). The proportion of students in the school class who had been exposed to sexual harassment was also associated with higher levels of psychological complaints, even when adjusting for sexual harassment at the student-level, gender and grade (b = 0.03, p = 0.015). Conclusions Sexual harassment is harmful for those who are exposed, but may also affect other students negatively. Thus, a school climate free from sexual harassment will profit all students. Key messages Using data collected among students aged 11, 13 and 15 years, this study showed that sexual harassment at the student- and class-level was associated with higher levels of psychological complaints. Sexual harassment is harmful for those who are exposed, but may also affect other students negatively. Thus, a school climate free from sexual harassment will profit all students.

scholarly journals Analysis and Prediction of Gap Dynamics in a Secondary Deciduous Broadleaf Forest of Central Japan Using Airborne Multi-LiDAR Observations

2020 ◽  
Vol 13 (1) ◽  
pp. 100
Author(s):  
Kazuho Araki ◽  
Yoshio Awaya
Keyword(s):  
Linear Regression Analysis ◽  
Light Detection And Ranging ◽  
Lidar Data ◽  
Gap Dynamics ◽  
Central Japan ◽  
Broadleaf Forest ◽  
Strong Linear Correlation ◽  
Using Data ◽  
Deciduous Broadleaf Forest ◽  
Lidar Observations

Gaps are important for growth of vegetation on the forest floor. However, monitoring of gaps in large areas is difficult. Airborne light detection and ranging (LiDAR) data make precise gap mapping possible. We formulated a method to describe changes in gaps by time-series tracking of gap area changes using three digital canopy height models (DCHMs) based on LiDAR data collected in 2005, 2011, and 2016 over secondary deciduous broadleaf forest. We generated a mask that covered merging or splitting of gaps in the three DCHMs and allowed us to identify their spatiotemporal relationships. One-fifth of gaps merged with adjacent gaps or split into several gaps between 2005 and 2016. Gap shrinkage showed a strong linear correlation with gap area in 2005, via lateral growth of gap-edge trees between 2005 and 2016, as modeled by a linear regression analysis. New gaps that emerged between 2005 and 2011 shrank faster than gaps present in 2005. A statistical model to predict gap lifespan was developed and gap lifespan was mapped using data from 2005 and 2016. Predicted gap lifespan decreased greatly due to shrinkage and splitting of gaps between 2005 and 2016.

PENGARUH KUALITAS PELAYANAN, KUALITAS PRODUK DAN KEPERCAYAAN TERHADAP LOYALITAS PELANGGAN AROMANIA PARFUMERY DI KOTA BENGKULU

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Sri Ekowati ◽  
Selamat Riyadi
Keyword(s):  
Service Quality ◽  
Product Quality ◽  
Customer Loyalty ◽  
Hypothesis Test ◽  
Linear Regression Analysis ◽  
Sampling Technique ◽  
Multiple Linear Regression Analysis ◽  
Quality Product ◽  
Using Data ◽  
Positive Effect

ABSTRACTThis study aims to determine the effect of service quality, product quality and  trust on customer loyalty aromania parfumery Bengkulu. This type of research is a survey research with a quantitative approach, the object of this research is the consumers in Aromania parfumery, which is precisely located on Jl. Kapuas Raya, Lingkar Barat, Kec. Gading Cempaka, Bengkulu City. with the sampling method, namely non-propability technique, namely insidential sampling technique. The number of respondents in this study were 105 people. The data collection method used a questionnaire. By using data analysis techniques using Multiple Linear Regression Analysis Test, and Hypothesis Test, namely test t and test f. The results of this study can be concluded that the variable service quality Aromania parfumery has a positive effect on customer loyalty, product quality has a positive effect on customer loyalty, and trust has a positive effect on customer loyalty.Keywords: Service Quality, Product Quality, Customer Trust and Loyalty.

Political Consumption as Supplement to Conventional Political Participation in Promoting Social Change

2016 ◽  
Vol 7 (1) ◽  
pp. 47-62
Author(s):  
Emmanuel Adugu
Keyword(s):  
Social Change ◽  
Food Safety ◽  
Food Production ◽  
Political Action ◽  
Social Changes ◽  
Individual Level ◽  
Ethical Concerns ◽  
Using Data ◽  
A Site ◽  
Political Consumption

Research indicates that individual consumers with food safety, environmental and ethical concerns regarding the provisioning of food may be motivated to use the marketplace as a site for political action to promote social change—a phenomenon known as political consumption (PC). Using data from Ohio 2007 Survey of Food, Farming and Environment, this research examined individual level attributes shaping engagement in PC and conventional political action. Findings based on logistic regression analyses, reveal that engagement in conventional political behavior is positively related to the likelihood of engagement in political consumption. This suggests that engagement in conventional political action and political consumption are not mutually exclusive. The main factors associated with engagement in political consumption are: knowledge about food production, environmental and food safety concerns. These findings suggest that consumers with concerns about the organization and character of food production believe they can create social changes via their consumptive decisions.

Determinants of Breastfeeding Duration in Peninsular Malaysia

2000 ◽  
Vol 12 (2) ◽  
pp. 102-106 ◽  
Author(s):  
Halimah Awang ◽  
Abdul Latif Haji Salleh
Keyword(s):  
Regression Analysis ◽  
Family Life ◽  
Maternal Age ◽  
Linear Regression Analysis ◽  
Peninsular Malaysia ◽  
Breastfeeding Duration ◽  
Work Status ◽  
First Child ◽  
Using Data ◽  
Determinants Of Breastfeeding

The health benefits of breastfeeding to infants and mothers have been well recognised. This study applies linear regression analysis to assess the determinants of breastfeeding duration of first born using data from the Second Malaysian Family Life Survey. The proportion of women who breastfed their first child is 82 percent, of which 97 percent reported their breastfeeding duration. The distribution of breastfeeding duration has a mean of 5.7 months and a median of two months. Important determinants of breastfeeding duration include maternal age, ethnicity, period of first birth, husband's occupation and work status of the woman. Asia Pac JPublic Health 2000;12(2): 102-106

scholarly journals Trends in Suicide Mortality by Method from 1979 to 2016 in Japan

2019 ◽  
Vol 16 (10) ◽  
pp. 1794 ◽  
Author(s):  
Bibha Dhungel ◽  
Maaya Kita Sugai ◽  
Stuart Gilmour
Keyword(s):  
Linear Regression ◽  
Linear Regression Analysis ◽  
Health Concern ◽  
Suicide Mortality ◽  
Registration System ◽  
Suicide Rates ◽  
Vital Registration System ◽  
Using Data ◽  
Age Adjusted Rates ◽  
Log Linear

Suicide is a major public health concern in Japan. This study aimed to characterize the trends in suicide mortality in Japan by method since 1979. Using data from the Japan vital registration system, we calculated age-standardized rates of suicide mortality separately by sex and method. We conducted a log-linear regression of suicide mortality rates separately by sex, and linear regression analysis of the proportion of deaths due to hanging, including a test for change in level and trend in 1998. While crude suicide rates were static over the time period, age-adjusted rates declined. The significant increase in suicide mortality in 1998 was primarily driven by large changes in the rate of hanging, with suicide deaths after 1998 having 36.7% higher odds of being due to hanging for men (95% CI: 16.3–60.8%), and 21.9% higher odds of being due to hanging for women (95% CI: 9.2–35.9%). Hanging has become an increasingly important method for committing suicide over the past 40 years, and although suicide rates have been declining continuously over this time, more effort is needed to prevent hanging and address the potential cultural drivers of suicide if the rate is to continue to decline in the future.

scholarly journals Unravelling ecological analysis

2006 ◽  
Vol 2006 ◽  
pp. 1-18 ◽  
Author(s):  
D. G. Steel ◽  
M. Tranmer ◽  
D. Holt
Keyword(s):  
Linear Regression Analysis ◽  
Aggregate Data ◽  
Auxiliary Variables ◽  
Ecological Analysis ◽  
Individual Level ◽  
Ecological Regression ◽  
Australian Census ◽  
Using Data ◽  
The Individual

Ecological analysis involves analysing aggregate data for groups of individuals to make inferences about relationships at the individual level. Often the results of such analyses give badly biased estimates. This paper will consider the sources of bias in linear regression analysis using aggregate data. The role of variation of the individual level relationships between groups and the consequent within-group correlations and how these are related to auxiliary variables that characterise the differences between groups is considered. A method of adjusting ecological regression for the effects of auxiliary variables is described and evaluated using data from the 1991 Australian Census.

scholarly journals Risk of Postpartum Depression in Association with Serum Leptin Levels: A Nested Case-control Study within the Uppsat Cohort

2009 ◽  
Vol 24 (S1) ◽  
pp. 1-1
Author(s):  
A. Skalkidou ◽  
I. Sundström-Poromaa ◽  
S. Sylven ◽  
M. Olovsson ◽  
A. Larsson ◽  
...  
Keyword(s):  
Postpartum Depression ◽  
Depressive Disorders ◽  
Case Control Study ◽  
Linear Regression Analysis ◽  
Subsequent Development ◽  
Population Based ◽  
Serum Leptin ◽  
Using Data ◽  
Nested Case Control ◽  
Control Study

Although postpartum depression (PPD) is a common condition, it often goes undiagnosed and untreated, with devastating consequences for the woman's ability to perform daily activities, to bond with her infant and to relate to the infant's father. Leptin, a protein synthesised in the adipose tissue and involved in regulation of food intake and energy expenditure has been related to depressive disorders, but studies report conflicting results. The aim of this study was to evaluate the association between serum leptin levels at the time of delivery and the subsequent development of postpartum depression in women, using data from a population-based cohort of delivering women in Uppsala, Sweden. Three hundred and sixty five women from which serum was obtained at the time of delivery filled out at least one of three pre-coded questionnaires containing the Edinbourgh Scale for Postnatal Depression (EPDS) five days, six weeks and six months after delivery. Crude mean leptin levels did not significantly differ between cases of PPD and controls. Using linear regression analysis and adjusting for maternal age, body-mass index, smoking, interleukin-6 levels, duration of gestation, gender and birth weight of the newborn, the EPDS scores at five days, six weeks and six months after delivery were negatively correlated with leptin levels at delivery (p< 0.05). Serum leptin levels at delivery were found to be negatively correlated with self reported depression during the first six months after delivery.

scholarly journals The effect of personal selling on product purchase decision in Sibolang Durian

2021 ◽  
Vol 10 (1) ◽  
pp. 90
Author(s):  
Jenni Tarigan
Keyword(s):  
Quantitative Research ◽  
Linear Regression Analysis ◽  
Personal Selling ◽  
Simple Random Sampling ◽  
Multiple Linear Regression Analysis ◽  
Research Approach ◽  
Consumer Decision Making ◽  
Purchasing Decisions ◽  
Validity And Reliability ◽  
Using Data

This research was conducted to determine the effect of personal selling on product purchasing decisions partially at Sibolang Durian Business, Medan. The sample used simple random sampling which directly selected 38 consumers. This type of research uses quantitative research with a causal associative research approach by using questionnaires which are considered appropriate to the research conducted which aims to determine the causal relationship between the independent variable (influencing variable) and the dependent variable (influenced variable). In this study, using validity and reliability and normality testing and using data analysis techniques, namely multiple linear regression analysis with the help of SPSS 20 software. t test), namely t count (2.229)> t table (1.688) with a significance value <0.05. This means that the personal selling hypothesis H1 is accepted and H0 is rejected. So it can be concluded that sales through personal selling marketing means carried out by the Sibolang Durian business also have an influence on consumer decision making in buying Sibolang Durian products.

scholarly journals Contribution of Internationalisation to SME Growth: Evidence from the Kenyan Manufacturing Sector

2020 ◽  
Vol 34 (1) ◽  
pp. 261-272
Author(s):  
Kulondwa Safari
Keyword(s):  
Manufacturing Sector ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Business Environment ◽  
Least Square ◽  
African Countries ◽  
East African Community ◽  
The World ◽  
Sub Saharan ◽  
Using Data

Abstract Sub-Saharan African countries are among the poorest countries in the world and there is a need to develop their economies. Researchers suggest the promotion of small and medium-sized enterprises (SMEs) to foster economic development in countries. Internationalisation has been proved to be a key strategy for SME growth. This study investigates the effect of internationalisation on manufacturing SME growth in Kenya. Kenya is a developing country and the leading economy in the East African community. Using data from the World Bank enterprise survey, a sample of 94 SMEs operating in Kenya between 2013 and 2018 was selected. Multiple linear regression analysis using ordinary least square (OLS) was applied and the results revealed that internationalisation through direct exports contributed positively to the growth of manufacturing SMEs in Kenya. The findings of the study suggest that policy makers should promote internationalisation of SMEs in Kenya to improve the doing business environment in general and remove external barriers to internationalisation of SMEs at the national and international level in particular.

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