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We describe a state-of-the-art sentiment analysis system that detects (a) the sentiment of short informal textual messages such as tweets and SMS (message-level task) and (b) the sentiment of a word or a phrase within a message (term-level task). The system is based on a supervised statistical text classification approach leveraging a variety of surface-form, semantic, and sentiment features. The sentiment features are primarily derived from novel high-coverage tweet-specific sentiment lexicons. These lexicons are automatically generated from tweets with sentiment-word hashtags and from tweets with emoticons. To adequately capture the sentiment of words in negated contexts, a separate sentiment lexicon is generated for negated words. The system ranked first in the SemEval-2013 shared task `Sentiment Analysis in Twitter' (Task 2), obtaining an F-score of 69.02 in the message-level task and 88.93 in the term-level task. Post-competition improvements boost the performance to an F-score of 70.45 (message-level task) and 89.50 (term-level task). The system also obtains state-of-the-art performance on two additional datasets: the SemEval-2013 SMS test set and a corpus of movie review excerpts. The ablation experiments demonstrate that the use of the automatically generated lexicons results in performance gains of up to 6.5 absolute percentage points.

Curiously, economists, whose discipline has much to do with human well-being, have shied away from factoring the study of happiness into their work. Happiness, they might say, is an ''unscientific'' concept. This is the first book to establish empirically the link between happiness and economics--and between happiness and democracy. Two respected economists, Bruno S. Frey and Alois Stutzer, integrate insights and findings from psychology, where attempts to measure quality of life are well-documented, as well as from sociology and political science. They demonstrate how micro- and macro-economic conditions in the form of income, unemployment, and inflation affect happiness. The research is centered on Switzerland, whose varying degrees of direct democracy from one canton to another, all within a single economy, allow for political effects to be isolated from economic effects. Not surprisingly, the authors confirm that unemployment and inflation nurture unhappiness. Their most striking revelation, however, is that the more developed the democratic institutions and the degree of local autonomy, the more satisfied people are with their lives. While such factors as rising income increase personal happiness only minimally, institutions that facilitate more individual involvement in politics (such as referendums) have a substantial effect. For countries such as the United States, where disillusionment with politics seems to be on the rise, such findings are especially significant. By applying econometrics to a real-world issue of general concern and yielding surprising results, Happiness and Economics promises to spark healthy debate over a wide range of the social sciences.

Against the backdrop of today's increasingly multicultural society, are America's elite colleges admitting and successfully educating a diverse student body? No Longer Separate, Not Yet Equal pulls back the curtain on the selective college experience and takes a rigorous and comprehensive look at how race and social class impact each stage--from application and admission, to enrollment and student life on campus. Arguing that elite higher education contributes to both social mobility and inequality, the authors investigate such areas as admission advantages for minorities, academic achievement gaps tied to race and class, unequal burdens in paying for tuition, and satisfaction with college experiences. The book's analysis is based on data provided by the National Survey of College Experience, collected from more than nine thousand students who applied to one of ten selective colleges between the early 1980s and late 1990s. The authors explore the composition of applicant pools, factoring in background and \"selective admission enhancement strategies\"--including AP classes, test-prep courses, and extracurriculars--to assess how these strengthen applications. On campus, the authors examine roommate choices, friendship circles, and degrees of social interaction, and discover that while students from different racial and class circumstances are not separate in college, they do not mix as much as one might expect. The book encourages greater interaction among student groups and calls on educational institutions to improve access for students of lower socioeconomic status.

The Indian automobile sector is undergoing a multi-dimensional transition arising from customer’s expectation for disruptive and innovative technology, the changing regulatory environment, demand for environment friendly mobility infrastructure and intensive competition from abroad. The prominence of sustainability in Indian automobile industry supply chains has become of utmost importance to be prepared for the future ahead. Despite industry commitment towards sustainability the management lacks direction when it comes to implementation. The study aims to find out factors that contribute to sustainability in the supply chain management of the automobile industry. A systematic review was conducted to explore different social, economic and environmental factors and sub-factors, extensively used for measuring the dimensions of sustainability. A total of 42 respondents were taken from seven Indian automobile industries for measuring sustainability. Further, the identified factors and sub-factors are ranked through the PPS (Percentage Point Score) method. A conceptual framework was developed to show the sub-factors impacts three dimensions of sustainability. Thus, three hypotheses were created and further tested. The study shows that the environmental factor has a more influence on a sustainable initiative with the highest score of 90 points (indicates first rank), followed by economic factor with 67 points (second rank) and social factor has 61 points (third rank). Thus, it was determined which factor or sub-factor is more important and priority than others. As a result, the final PPS score for sustainability gives us tangible and measurable values to enhance the efforts of organizations in their commitment towards achieving sustainability across the supply chain of the automobile industry.

On the night of the 2000 presidential election, Americans sat riveted in front of their televisions as polling results divided the nation’s map into red and blue states. Since then the color divide has become a symbol of a culture war that thrives on stereotypes--pickup-driving red-state Republicans who vote based on God, guns, and gays; and elitist, latte-sipping blue-state Democrats who are woefully out of touch with heartland values. Red State, Blue State, Rich State, Poor State debunks these and other political myths.

Background Indoor residual spraying (IRS) with Actellic 300 CS was conducted in Lira District between July and August 2016. No formal assessment has been conducted to estimate the effect of spraying with Actellic 300 CS on malaria morbidity in the Ugandan settings. This study assessed malaria morbidity trends before and after IRS with Actellic 300 CS in Lira District in Northern Uganda. Methods The study employed a mixed methods design. Malaria morbidity records from four health facilities were reviewed, focusing on 6 months before and after the IRS intervention. The outcome of interest was malaria morbidity defined as; proportion of outpatient attendance due to total malaria, proportion of outpatient attendance due to confirmed malaria and proportion of malaria case numbers confirmed by microscopy or rapid diagnostic test. Since malaria morbidity was based on count data, an ordinary Poisson regression model was used to obtain percentage point change (pp) in monthly malaria cases before and after IRS. A household survey was also conducted in 159 households to determine IRS coverage and factors associated with spraying. A modified Poisson regression model was fitted to determine factors associated with household spray status. Results The proportion of outpatient attendance due to malaria dropped from 18.7% before spraying to 15.1% after IRS. The proportion of outpatient attendance due to confirmed malaria also dropped from 5.1% before spraying to 4.0% after the IRS intervention. There was a decreasing trend in malaria test positivity rate (TPR) for every unit increase in month after spraying. The decreasing trend in TPR was more prominent 5–6 months after the IRS intervention (Adj. pp = − 0.60, P-value = 0.015; Adj. pp = − 1.19, P-value < 0.001). The IRS coverage was estimated at 89.3%. Households of respondents who were formally employed or owned any form of business were more likely to be unsprayed; (APR = 5.81, CI 2.72–12.68); (APR = 3.84, CI 1.20–12.31), respectively. Conclusion Coverage of IRS with Actellic 300 CS was high and was associated with a significant decline in malaria related morbidity 6 months after spraying.

There is a widespread belief, among both political scientists and government policymakers, that \"democracies don't fight each other.\" Here Joanne Gowa challenges that belief. In a thorough, systematic critique, she shows that, while democracies were less likely than other states to engage each other in armed conflicts between 1945 and 1980, they were just as likely to do so as were other states before 1914. Thus, no reason exists to believe that a democratic peace will survive the end of the Cold War. Since U.S. foreign policy is currently directed toward promoting democracy abroad, Gowa's findings are especially timely and worrisome. Those who assert that a democratic peace exists typically examine the 1815-1980 period as a whole. In doing so, they conflate two very different historical periods: the pre-World War I and post-World War II years. Examining these periods separately, Gowa shows that a democratic peace prevailed only during the later period. Given the collapse of the Cold War world, her research calls into question both the conclusions of previous researchers and the wisdom of present U.S. foreign policy initiatives. By re-examining the arguments and data that have been used to support beliefs about a democratic peace, Joanne Gowa has produced a thought-provoking book that is sure to be controversial.

Previous wage studies of the period before World War I found that real wages remained stable from 1890 to 1914 despite the continued growth of the economy. This study indicates that this conclusion was based on faulty statistics. Using new estimates of money wages and a new cost-of-living index, Mr. Rees shows that real wages rose considerably in this period, although less than in later years. His findings will require revision of the prevailing viewpoint. Originally published in 1961. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Do women participate in and influence meetings equally with men? Does gender shape how a meeting is run and whose voices are heard?The Silent Sexshows how the gender composition and rules of a deliberative body dramatically affect who speaks, how the group interacts, the kinds of issues the group takes up, whose voices prevail, and what the group ultimately decides. It argues that efforts to improve the representation of women will fall short unless they address institutional rules that impede women's voices. Using groundbreaking experimental research supplemented with analysis of school boards, Christopher Karpowitz and Tali Mendelberg demonstrate how the effects of rules depend on women's numbers, so that small numbers are not fatal with a consensus process, but consensus is not always beneficial when there are large numbers of women. Men and women enter deliberative settings facing different expectations about their influence and authority. Karpowitz and Mendelberg reveal how the wrong institutional rules can exacerbate women's deficit of authority while the right rules can close it, and, in the process, establish more cooperative norms of group behavior and more generous policies for the disadvantaged. Rules and numbers have far-reaching implications for the representation of women and their interests. Bringing clarity and insight to one of today's most contentious debates,The Silent Sexprovides important new findings on ways to bring women's voices into the conversation on matters of common concern.

Feeding strategies provide essential information to help understand symbiotic relationships and resource competition as well as environmental integrity. This study examined the feeding ecology of the spider crab Libinia ferreirae, which is commonly associated with the jellyfish Lychnorhiza lucerna during part of its life cycle, especially the juvenile stage. In the adult phase, the crab is a host for many epibionts that live on its carapace. The crabs were collected in 1 year, and the stomach contents were analyzed by the percentage points and the frequency of occurrence of the food items. We identified ten food items (food in the advanced stage of digestion was unidentifiable) and microplastic particles in the gastric contents of the crabs. The food items with high abundances were sediment, crustaceans, and cnidarians. We found niche partitioning of the spider crab’s diet during the benthic (free-living) and planktonic (L. lucerna association) phases. The fact that microplastic is part of the diet of L. ferreirae is concerning and shows how environmental contamination with plastic material has been incorporated into the marine food chain as a whole.