Results 51 to 60 of about 111,277 (308)

Study of Free‐Space Optical Quantum Network: Review and Prospectives

open access: yesAdvanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

Mapping the “Supply–Demand–Flow” of Ecosystem Services for Ecosystem Management in China

open access: yesAdvanced Science, EarlyView.
This study develops a “supply–demand–flow” framework clarifies how ecosystem services move between regions by distinguishing potential and actual supply and demand. Using integrated biophysical–socioeconomic modeling, nine services in China were mapped.
Yikun Zhang   +3 more
wiley   +1 more source

Analysis of Urban Sprawl of the City of Mashhad in Recent Decades (1956-2006) and Its Impact on Soil Resources [PDF]

open access: yesنشریه جغرافیا و برنامه‌ریزی, 2015
Urban spatial growth and its patterns is one of the most important issues in urban planning. During the time, the patterns of spatial distributions which are called urban form are changing because of urban dynamics.
Rahmatollah Farhudi   +3 more
doaj  

Measuring Nutrition Security Using the Consumer Food Data System Datasets

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Nutrition security is an emerging concept lacking a consensus definition, conceptualization, or standardized measure. This perspectives manuscript synthesizes findings from two previously published analyses to assess the feasibility of using available measures of key dimensions of nutrition security from two Consumer Food Data System (CFDS ...
Vibha Bhargava   +2 more
wiley   +1 more source

Evaluation and Analysis of Urban Management with Emphasis on Desirable Urban Governance Indices (Case Study: Khorramabad) [PDF]

open access: yesجغرافیای اجتماعی شهری, 2015
Available challenges in today’s strongly civic world has impelled the necessity of revising civic management and modern civic management is following plans conforming native and local characteristics. The important thing under these conditions is to have
Mohammad Hossein Saraei   +3 more
doaj   +1 more source

Development of urban geography [PDF]

open access: yes, 2018
Urban geography as a geographical discipline developed simultaneously with urbanization. Urbanization is said to be a continuous global and historical process that began to develop five thousand years ago, that is, from the emergence of the first cities.
Gatarić, Dragica, Ivanišević, Marko
core  

Assessing Household Welfare in Response to Rising Food Prices in The Gambia

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines how rising food prices affected household welfare in The Gambia using nationally representative data from the 2015/16 Integrated Household Survey (IHS‐3). The analysis reflects household consumption behavior and market conditions prevailing during that period and provides a structural benchmark for understanding ...
Roger Vorsah   +3 more
wiley   +1 more source

The examination of the spatial and contextual disparities of determinant factors of adult obesity among communities in Chicago

open access: yesDiscover Public Health
The issue of adult obesity has multiple complexes contributing factors and is becoming a significant public health concern worldwide, including in the neighborhoods of Chicago.
T. Gala   +7 more
doaj   +1 more source

Urban Geography and its importance in basic education / A Geografia Urbana e sua importância no ensino básico

open access: yesDiversitas Journal, 2016
This article envisages discuss the Urban Geography in primary education to expose the importance of having an educational focus on urban space theme of geography discipline; since the role of schools would also give you conditions to become a citizen ...
Jhon David Santos Silva   +5 more
doaj   +1 more source

On the Economics of US Agricultural Policy

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This paper presents an economic analysis of US agricultural policy, building on a modified version of Gardner's efficient redistribution. We argue that agricultural policy is motivated as an attempt to implement an efficient redistribution scheme that redistributes income toward farmers who, as a group, have been adversely affected by ...
Jean‐Paul Chavas
wiley   +1 more source

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