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Journal Article

Curtis A. Deutsch, Joshua J. Tewksbury, Michelle Tigchelaar, David S. Battisti, Scott C. Merrill, Raymond B. Huey, Rosamond L. Naylor
Science, 2018

Our Report draws attention to a complex but understudied issue: How will climate warming alter losses of major food crops to insect pests? Because empirical evidence on plant-insect-climate interactions is scarce and geographically localized, we developed a physiologically based model that incorporates strong and well-established effects of temperature on metabolic rates and on population growth rates.

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Journal Article

Xi Chen, Karen Eggleston, Ang Sun
The Journal of the Economics of Ageing, 2018

China launched a new rural pension scheme (NRPS) for rural residents in 2009, now covering almost all counties with over 400 million people enrolled.

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Journal Article

Hongyu Guan, Huan Wang, Kang Du, Jin Zhao, Matthew Boswell, Yaojiang Shi, Yiwei Qian
International Journal of Environmental Research and Public Health, 2018
Abstract: If children with common vision problems receive and use eyeglasses, their educational performance rises. Without proper treatment, visually impaired children may not achieve educational gains and could suffer from poor mental health. We use a randomized controlled trial to study the impact of an eyeglasses promotion program in rural China on the mental health of myopic primary school students. Three measures of mental health are used: learning anxiety, physical anxiety, and scores on the Mental Health Test (MHT). Our empirical analysis showed that on average, the treatment has small and insignificant for learning anxiety and MHT, and a small but significant reduction in physical anxiety. However, subgroup analysis reveals that myopic students who study more intensively see their learning anxiety and physical anxiety reduced after being provided with eyeglasses. In contrast, students with the lower study intensity suffer a rise in learning anxiety after receiving eyeglasses. A potential mechanism for the differing impacts is the increase in teasing reported among low study-intensity students that does not occur for high study-intensity students. Care should be taken to maximize the benefits and minimize the costs of in-school vision programs.
 
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Journal Article

Fang Chang, Yaojiang Shi, Amber Shen, Asa Kohrman, Katherine Li, Qinqin Wan, Kaleigh Kenny, Scott Rozelle
The Developing Economies, 2018

This research uses a mixed-methods analysis to examine how being left behind impacts the cognition/education,  nutrition,  and  mental  health  outcomes  of  children  in  rural  China.  We find  that  parental  migration  increases  household  income  and  decreases  care,  and  these impacts  vary  based  on location,  socioeconomic  status,  and  age.  We  also  find  that  families generally recognize these impacts. Our findings offer a more general view of the effects of being  left  behind  on  childhood  outcomes  than  previous  research,  which  often  used  small sample sizes from limited geographic areas or age ranges. Although our research focuses on China, the findings are relevant to other developing nations where working-age individuals often  migrate  domestically  or  internationally  in  search  of  work,  such  as  Mexico  and  the Philippines. 

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Journal Article

Larry Diamond,
2018

For three and a half decades following the end of the Maoist era, China adhered to Deng Xiaoping’s policies of “reform and opening to the outside world” and “peaceful development.” After Deng retired as paramount leader, these principles continued to guide China’s international behavior in the leadership eras of Jiang Zemin and Hu Jintao.

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Working Paper

Prashant Loyalka, Anna Popova, Guirong Li, Zhaolei Shi
2018

Despite massive investments in teacher professional development (PD) programs in developing countries, there is little evidence on their effectiveness. We present results of a large-scale, randomized evaluation of a national PD program in China in which teachers were randomized to receive PD; PD plus follow-up; PD plus evaluation of the command of PD content; or no PD. Precise estimates indicate PD and associated interventions failed to improve teacher and student outcomes after one year. A detailed analysis of the causal chain shows teachers find PD content to be overly theoretical, and PD delivery too rote and passive, to be useful.

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Journal Article

George Azzari, Patricio Grassini, Juan Ignaci, Rattalino Edreira, Shawn Conley, Spyridon Mourtzinis, David Lobell
Remote Sensing of Environment, 2018

Low-intensity tillage has become more popular among farmers in the United States and many other regions.

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Journal Article

François Diaz-Maurin, François Diaz-Maurin, Rodney C. Ewing
Sustainability, 2018

Abstract: We present a new perspective on geological disposal systems for nuclear waste. Geological disposal systems encompass all the processes required for the permanent isolation of highly-radioactive materials from humans and the biosphere. Radioactive materials requiring geological disposal are created by commercial nuclear power plants, research reactors, and defense-related nuclear activities, such as spent nuclear fuel from commercial reactors and high-level waste from reprocessing to reclaim fissile material for weapons.

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Journal Article

Sanjay Basu, John S. Yudkin, Sylvia Kehlenbrink, Justine I. Davies, Sarah H. Wild, Kasia J. Lipska, Jeremy B. Sussman, David Beran
The Lancet, 2018

Background:

The amount of insulin needed to effectively treat type 2 diabetes worldwide is unknown. It also remains unclear how alternative treatment algorithms would affect insulin use and disability-adjusted life-years (DALYs) averted by insulin use, given that current access to insulin (availability and affordability) in many areas is low. The aim of this study was to compare alternative projections for and consequences of insulin use worldwide under varying treatment algorithms and degrees of insulin access.

Methods:

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Working Paper

Rosamond L. Naylor, et al.
Aspen Global Change Institute, 2018

Increased intake of fruits and vegetables (F&V) is recommended for most populations across the globe. However, the current state of global and regional food systems is such that F&V availability, the production required to sustain them, and consumer food choices are all severely deficient to meet this need.

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Journal Article

Eileen Donahoe, Fen Osler Hampson
2018

The emergence of a global digital ecosystem has been a boon for global communication and the democratization of the means of distributing information. The internet, and the social media platforms and web applications running on it, have been used to mobilize pro-democracy protests and give members of marginalized communities a chance to share their voices with the world.

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Journal Article

Yong Suk Lee
Labor Economics, 2018

This paper examines the relationship between modern management practices and the demand for different occupational skills utilizing a unique context in South Korea after the Asian financial crisis. Management practices in South Korea had traditionally emphasized the organizational harmony over individual performance, and firm growth over short-term profits. However, as South Korea opened up to foreign firms after the financial crisis, domestic firms started to adopt western or more "modern" management practices.

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Journal Article

Yogesh Joshi,
2018

This article argues that China’s rise and its growing military power have intensified the Sino-Indian security dilemma. For a long time after the 1962 war, India’s military posture along the India–China border was mostly defensive in nature and could be characterized as imposing “deterrence by denial.” However, over the last decade, China’s growth trajectory coupled with rapid modernization of its military called into question the efficacy of this approach.

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Journal Article

Asfandyar Mir,
International Security, 2018

For years, the U.S. government has been waging counterterrorism campaigns against al-Qaida and other armed groups in safe havens and weak states. What explains the effectiveness of such campaigns? The variation in effectiveness may result from differences in select tactical, organizational, and technological capabilities of the counterterrorism state and its local partner, captured by the concept of the Legibility and Speed-of-Exploitation System (L&S).

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Journal Article

Scott Sagan, Benjamin Valentino
International Studies Quarterly, 2018

This article assesses American public attitudes toward the just war principles of proportionality, due care and distinction. Consistent with the logic of proportionality, the authors find that Americans are less willing to inflict collateral deaths on foreign civilians when the military advantage of destroying a target is lower. Most Americans also are willing to risk the deaths of American soldiers to avert a larger number of collateral foreign civilian deaths, which accords with the due care principle.

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Book

Maxime Polleri,
2018

The maternal body is a site of contested dynamics of power, identity, experience, autonomy, occupation, and control.

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Journal Article

Lei Wang, Yonglei Sun, Buyao Liu, Lijuan Zheng, Mengjie Li, Yu Bai, Annie Osborn, Maggie Lee, Scott Rozelle
International Journal of Environmental Research and Public Health, 2018
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Journal Article

François Diaz-Maurin, Zivayi Chiguvare, Gideon Gopee
Energy Policy, 2018

Abstract: The paper deals with the challenges of energy access, efficiency and security as essential conditions to improve people's living in the Southern African region. It supports energy policies by providing material for an integrated assessment of alternative energy systems at national level.

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Journal Article

Siqi Zhang, Ruirui Dang, Ning Yang, Lei Wang, Cody Abbey, Scott Rozelle
International Journal of Environmental Research and Public Health, 2018

Previous research has found that there are high rates of developmental delays among infants and toddlers in rural areas of China. Caregiver mental health problems might be one significant predictor of developmental delays among infants and toddlers, as has been found in other areas of the world. One way that the mental health of caregivers could affect early childhood development is through its effect on parenting practices. In this study, we used data from four major subpopulations of rural China to measure the correlation of caregiver mental health problems with the developmental outcomes of infants and toddlers. To do so, the study used the Bayley Scales of Infant Development III (BSID III) to examine the rates of developmental delays among 2514 rural infants/toddlers aged 6–30 months old. The results of the testing demonstrate that 48% of the sample’s infants/toddlers have cognitive delays; 52% have language delays; 53% have social-emotional delays; and 30% have motor delays. The data collection team also assessed caregiver mental health by using the Depression Anxiety Stress Scales (DASS-21) questionnaire. According to the findings, 39% of caregivers in the sample have symptoms of at least one kind of mental health problem (depression, anxiety, or stress). We also found that most caregivers do not engage in positive parenting practices, while a significant share of caregivers engage in negative parenting practices. The statistical analysis found that showing signs of mental health problems is significantly and negatively associated with infant/toddler developmental outcomes. The study also found that caregivers who show signs of mental health problems are significantly less likely to engage in interactive parenting practices. The study confirms that society needs to pay more attention to caregiver mental health problems in order to improve infant/toddler developmental outcomes in rural China and increase human capital accumulation in China as a whole.

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Journal Article

Ali Yaycioglu
Modern Asian Studies, 2018

This article examines the religious and intellectual dynamics behind the Ottoman military reform movement, known as the New Order, in the late eighteenth and early nineteenth centuries. Conventionally, the New Order has been examined within the framework of the Westernization of Ottoman military and administrative institutions. The Janissary-led popular opposition to the New Order, on the other hand, has been understood as a conservative resistance, fashioned by Muslim anti-Westernization.

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Journal Article

David Holloway, Yogesh Joshi, Malfrid Braut-Hegghammer
The International History Review, 2018
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Journal Article

Lili Li, Lei Huang, Yaojiang Shi, Renfu Luo, Meredith Yang, Scott Rozelle
China Economic Review, 2018

Anemia in children impairs physical growth and cognitive development, reducing their overall human capital accumulation. While much research has been conducted on anemia prevalence in the primarily poor and rural western provinces in China, little is known about anemia in the more developed provinces of central China. The overall goal of this study is to assess the extent of anemia in central China and determine the effect of anemia on the academic performance of students. Using data collected from fourth grade students in 25 primary schools, we find that 16–27% of sample children are anemic. Female students and students with mothers who have not migrated for work are more likely to be anemic. Importantly, using both regression analysis and matching methods, we find that students with anemia (and those with low hemoglobin levels) are more likely to perform poorly on standardized mathematics exams. These findings suggest that, over the long term, untreated anemia will perpetuate poverty by restricting the human capital development of affected children.

 

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Working Paper

Adrien Auclert, Matthew Rognlie, Ludwig Straub
NBER Working Paper, 2018

We demonstrate the importance of intertemporal marginal propensities to consume (iMPCs) in disciplining general equilibrium models with heterogeneous agents and nominal rigidities. In a benchmark case, the dynamic response of output to a change in the path of government spending or taxes is given by an equation involving iMPCs, which we call the intertemporal Keynesian cross. Fiscal multipliers depend only on the interaction between iMPCs and public deficits.

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Journal Article

Moritz Marbach, Jens Hainmueller, Dominik Hangartner
Science Advances, 2018

Many European countries impose employment bans that prevent asylum seekers from entering the local labor market for a certain waiting period upon arrival. We provide evidence on the long-term effects of these employment bans on the subsequent economic integration of refugees. We leverage a natural experiment in Germany, where a court ruling prompted a reduction in the length of the employment ban.

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Journal Article

Mathias Wullum Nielsen, Carter Walter Bloch, Londa Schiebinger
Nature: Human Behavior, 2018

Gender diversity has the potential to drive scientific discovery and innovation. Here, we distinguish three approaches to gender diversity: diversity in research teams, diversity in research methods and diversity in research questions. While gender diversity is commonly understood to refer only to the gender composition of research teams, fully realizing the potential of diversity for science and innovation also requires attention to the methods employed and questions raised in scientific knowledge-making.

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