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Winner Strategies in Crisis
Research background: Since the publication of Markowitz’ Portfolio Selection Theory, researchers and practitioners have been searching for the optimal structure of investment portfolios. An unlimited number of portfolio-based investment strategies have been created since 1952. However, none of these...
On the Selection of Charging Facility Locations for EV-Based Ride-Hailing Services: A Computational Case Study
The uptake of Electric Vehicles (EVs) is rapidly changing the landscape of urban mobility services. Transportation Network Companies (TNCs) have been following this trend by increasing the number of EVs in their fleets. Recently, major TNCs have explored the prospect of establishing privately owned...
What Type of Industrial Agglomeration Is Beneficial to the Eco-Efficiency of Northwest China?
The contradiction between industrial economic development and the ecological environment in Northwest China is prominent, so the green transformation of industrial economy in this region is imperative. From the perspective of industrial ecology, this study uses economic and environmental statistics...
A systematic approach to making the doctoral thesis
Model Selection for Degree-corrected Block Models
The proliferation of models for networks raises challenging problems of model selection: the data are sparse and globally dependent, and models are typically high-dimensional and have large numbers of latent variables. Together, these issues mean that the usual model-selection criteria do not work p...
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Poetic and cultural tradition in José Emilio Pacheco’s literature
La producción literaria de José Emilio Pacheco (México, 1939-2014) ocupa un lugar destacado en la literatura latinoamericana de la segunda mitad del siglo veinte y, apenas iniciado el nuevo milenio, ha alcanzado una creciente visibilidad a partir del reconocimiento de la singularidad de su proyecto...
From desk research “Desasures and health”: a methodological model for the dissemination of qualitative results.
The objective of this article is to describe the process of transferring scientific research to a documentary, on the basis of a methodological model with an application for qualitative health research. The methodology of Arts-Based Knowledge Translation was used, in order to transfer the scientific...
What Does Gender Yield Gap Tell Us about Smallholder Farming in Developing Countries?
This study examines the extent of the productivity gap between male and female bean producers, its discriminatory nature and implications for the policymakers in agriculture in Tanzania. Generally, women are distinctively “invisible” in agriculture, due to social norms and even from the national agr...
Multi-factors influence of anchorage force on surrounding rock under coupling effect of creep rock mass and bolt/cable
Assuming that relative sliding does not occur to the coordinated deformation of bolt/cable and surrounding rock, a constitutive model of coupling effect between bolt/cable and creep surrounding rock is established to study the variation law of anchorage force on surrounding rock with time increasing...
Spatio-Temporal Characteristics and Obstacle Factors of Cultivated Land Resources Security
The security of cultivated land resources is closely related to a country’s food security, economic security and social security, and as such is always the top priority of those responsible for the governance and administration of state affairs. The study area is 13 prefecture-level cities in Hubei...
Using response times in CAT
Many areas of psychology and education place a high premium on measurement, using psychometric theory to measure constructs, such as cognitive ability, personality, and attitudes. Some of the more well-known measurement theories used are classical test theory (CTT), structural equation modeling (SEM...
The long-term impact of trade with firm heterogeneity
After the emergence and development of heterogeneous firm trade models, some (most notably Arkolakis, Costinot and Rodriguez-Clare 2012, ACR) have argue that a family of these models (e.g. a Melitz-type model with Pareto distributed firms) do not add to the evaluation of welfare effects of freer tra...
A surrogate similarity measure for the mean-variance frontier optimization problem under bound and cardinality constraints
RODELS OF LEARNING THE BASICS OF Informatics IN Primary SCHOOLS AND THE MEANS OF THEIR IMPLEMENTATION
The article provides a model of learning the basics of informatics in primary school. The question of the selection and application of hardware and software implementation of these models in teaching the subject "Steps to informatics." The basic requirements for the selection of hardware and softwar...
Brinquedos e materiais pedagogical nas Escolas infantis
A identificação dos brinquedos e materiais pedagógicos e a caracterização de usos e significações para profissionais de educação infantil de São Paulo, que atuam com crianças de 4 a 6 anos, justificaram uma pesquisa tipo survey, acompanhada de recursos etnográficos (entrevistas, observações, vídeos)...
GIS-based multi-criteria analysis for flood prone areas mapping in the trans-boundary Shatt Al-Arab basin, Iraq-Iran
Severe flood events in the trans-boundary Shatt Al-Arab basin (Iraq-Iran) claim hundreds of human lives and cause damage to the economy and environment. Therefore, developing a flood hazard model to recognize the basin’s susceptible areas to flooding is important for decision makers for comprehensiv...
An Overview of Microalgae Lipid Extraction in a Biorefinery Framework
International audience The interest in algae based biofuels has increased over the past few years because of their high potential to reduce the dependence on fossil fuels. Many methods for converting microalgae to biofuel have been proposed in the past; however, an economical and energetically feasi...
School of Democracy. Voluntary activities and political participation
Le nostre analisi dei dati ISTAT AVQ confermano la validità del modello della centralità sociale per fornire una prima importante spiegazione dei diversi livelli di partecipazione politica e di impegno nel volontariato e nelle associazioni. Il punto centrale delle analisi da noi condotte, tuttavia...
Skill and propensity to empathy: conceptualisation and study of influencing factors through behavioural and brain measurements
Empathy is a complex function that allows individuals to understand and even share the emotions and mental states of others. This function involves an affective component, which allows one to feel what the other feels, but to a lesser degree, and a cognitive component, which corresponds to the capac...
Urban economy and consumer climate behaviour: Effect on hedonist prices and urban sprawl
`titrebUrban economics and consumer behavior in regard to climate : effects on hedonic prices and urban sprawl`/titrebWe present a theoretical model in which, (i) households consume a climatic amenity, (ii) warmer climates increase an outdoor way of life (barbecue effect) and (iii) where commuting c...
Examining the relation between children's cognitive bases and game behaviours in the pre-school education institution
Bu çalışmanın amacı, okulöncesi eğitim kurumuna devam eden 5 – 6 yaş çocuklarının bilişsel üslupları ile, bilişsel ve toplumsal oyun sınıflamasına göre, gözlemlenen oyunları arasındaki ilişkinin incelenmesidir. Araştırma, ilişkisel tarama modeli niteliğindedir. Araştırma için seçilen anaokullarından...
Variation of selfing rate and inbreeding depression among individuals and across generations within an admixed Cedrus population
Quantitative genetic modeling and inference in the presence of nonignorable missing data.
Natural selection is typically exerted at some specific life stages. If natural selection takes place before a trait can be measured, using conventional models can cause wrong inference about population parameters. When the missing data process relates to the trait of interest, a valid inference req...
Mining Permission Request Patterns from Android and Facebook Applications (extended author version)
Android and Facebook provide third-party applications with access to users' private data and the ability to perform potentially sensitive operations (e.g., post to a user's wall or place phone calls). As a security measure, these platforms restrict applications' privileges with permission systems: u...
Predictive Quantile Regression with Mixed Roots and Increasing Dimensions
In this paper we propose the adaptive lasso for predictive quantile regression (ALQR). Reflecting empirical findings, we allow predictors to have various degrees of persistence and exhibit different signal strengths. The number of predictors is allowed to grow with the sample size. We study regulari...