nils-herrmann/clean_scirepeval huggingface dataset:
Silence is Golden: Enhancing Privacy of Location Based Services by Content Broadcasting and Active Caching in Wireless Vehicular Networks
Venue: IEEE Transactions on Vehicular Technology

The privacy issue of location based service (LBS) applications represents a fundamental and critical research topic that shows distinguished challenges. Specifically, in the scenario of vehicular networks, due to connectivity transitory and throughput degradation caused by high vehicle mobility, traditional methods such as k anonymity are not sufficient. In an effort to address this issue, we propose a framework that enhances the privacy of LBS by actively caching in the wireless vehicular network scenario. The scheme is designed under the dedicated short range communication (DSRC) standard, with three original contributions. First, a point of interest (POI) query probability model for in vehicle users is defined, considering the spatial relationship between the current location and the queried location. Second, three broadcasting content selection algorithms of the roadside unit (RSU) are proposed, including two adaptive updating methods and one knowledge based precaching (KBPC) method. Third, we identify critical parameters that affect privacy, including RSU distance, vehicle speed, query set size of POI, size of each POI entry, and the proportion of channel capacity used for RSU broadcast (defined as channel occupancy) Finally, the proposed scheme is evaluated by extensive simulations, and the results are discussed in detail.
An Integrated Golden Spike Information Portal Enabled by Data Visualization and Semantic Web Technologies

The purpose of the portal (http:/geotime.tw.rpi.edu/ described in this paper is to provide formal background information of Golden Spikes. Golden Spike is the nickname for Global Boundary Stratotype Section and Point, or GSSP, which a stratigraphic section is serving as the reference unit for a particular boundary on the geologic time scale. In this work we deployed a number of state of the art information technologies, such as semantic modeling and encoding, data visualization, SPARQL query, and online map layers from Web Map Services. The portal received positive feedbacks from researchers in the domain of stratigraphy and we are assembling further information and updating the portal to make it more useful.
On Golden Vaginas and Gun Violence.
Venue: American journal of public health

The article discusses the depictions of gun violence and black women and men in the motion picture "Chi Raq" directed by Spike Lee in relation to data from the U.S. Centers for Disease Control and Prevention's National Center for Injury Prevention and Control Web based Injury Statistics Query and Reporting System regarding gun related homicides in America. Gang violence and sexual behavior by black women in the U.S. are examined, along with the Black Women's Health Imperative organization.
Rapid and non destructive prediction of mango quality attributes using Fourier transform near infrared spectroscopy and chemometrics

To establish a non destructive method for prediction of mango quality attributes, near infrared reflectance spectroscopy (NIRS) combined with chemometrics was studied. NIR spectra were recorded on intact mangos (cv. Kent n 58) in the wavelength range of 1000 2500 nm using a Fourier transform near infrared (FT NIR) spectrometer, followed by its quality attributes measurement. Partial least squares (PLS) and principal component regression (PCR) based on various spectral pre treatment (MSC, SNV and first derivative) were used to develop prediction models for quality attributes such as soluble solids content (SSC) titratable acidity (TA) and ascorbic acid (AA) The models yielded satisfactory results with coefficient of determination of calibration ranging from 0.66 to 0.91 (SSC) 0.94 to 0.98 (TA) and 0.62 to 0.92 (AA) while in cross validation the coefficient ranging from 0.51 to 0.66 (SSC) 0.90 to 0.95 (TA) and 0.43 to 0.61 (AA) Standard error resulted in calibration and cross validation were low. It is concluded that NIRS and chemometrics is feasible for rapid and non destructive prediction of mango quality.
Higher costs appeal to voters: implications of expressive voting

The logic of expressive voting implies that some will find voting for a government policy more appealing the more costly it is. This result is consistent with public opinion polls and the trajectory of government spending. And it adds to the ability of rational voter ignorance and apathy to explain the latitude politicians have to ignore the cost they impose on taxpayers without losing votes. The appeal of higher costs to voters makes it easier for organized interest groups to exploit the good intentions of voters by capturing private advantage and sabotaging the hopes upon which those good intentions are based. The appeal higher costs have for some voters also suggests another way bootleggers can benefit from the moral cover Baptists provide for their rent seeking activities. We also point out that expressive voting implies that there is no reason for believing that the special interest activity that sabotages the moral intentions of voters are in general any less moral than morally motivated voters.
Glutamine Induced Secretion of Intestinal Secretory Immunoglobulin A: A Mechanistic Perspective
Venue: Front. Immunol.

Secretory immunoglobulin A (SIgA) is one important line of defense in the intestinal mucosal surface to protect the intestinal epithelium from enteric toxins and pathogenic microorganisms. Multiple factors, such as intestinal microbiota, intestinal cytokines, and nutrients are highly involved in production of SIgA in the intestine. Recently, glutamine has been shown to affect intestinal SIgA production; however, the underlying mechanism by which glutamine stimulates secretion of intestinal SIgA is unknown. Here, we review current knowledge regarding glutamine in intestinal immunity and show that glutamine enhanced secretion of SIgA in the intestine may involve intestinal microbiota, intestinal antigen sampling and presentation, induction pathways for SIgA production by plasma cells (both T dependent and T independent pathway) and even transport of SIgA. Altogether, the glutamine intestinal SIgA axis has broad therapeutic implications for intestinal SIgA associated diseases, such as celiac disease, allergies, and inflammatory bowel disease.
Free and complexed secretory immunoglobulin A triggers distinct intestinal epithelial cell responses
Venue: Clinical and experimental immunology

Secretory immunoglobulin A (SIgA) antibodies play an important role in protecting the mucosal surfaces against pathogens and maintaining homeostasis with the commensal microbiota. Because a substantial portion of the gut microbiota is coated with SIgA, we hypothesized that microbiota SIgA complexes are important for the maintenance of gut homeostasis. Here we investigated the relationship between microbiota SIgA complexes and inflammatory epithelial cell responses. We used a multi cellular three dimensional (3D) organotypical model of the human intestinal mucosa composed of an intestinal epithelial cell line and primary human lymphocytes/monocytes, endothelial cells and fibroblasts. We also used human SIgA from human colostrum, and a prominent bacterial member of the first colonizers, Escherichia coli, as a surrogate commensal. We found that free and microbiota complexed SIgA triggered different epithelial responses. While free SIgA up regulated mucus production, expression of polymeric immunoglobulin receptor (pIgR) and secretion of interleukin 8 and tumoir necrosis factor a, microbiota complexed SIgA mitigated these responses. These results suggest that free and complexed SIgA have different functions as immunoregulatory agents in the gut and that an imbalance between the two may affect gut homeostasis.
The New Development Study on China's Export Trade under the Background of "One Belt One Road"

This article analyzed the history and current condition of China's export trade, then contrasted the new development of the China's export trade, summed up the impetus and hindering factors about the new development of China's export trade, so that we can have a better idea about the implementation and its impact on "One Belt One Road" make full use of the strategic opportunity brought by the policy of "One Belt One Road" promote the further development of China's foreign trade. This paper researched the development status of China's export trade status by using literature research analysis and Comparative analysis, brought out the promotion and obstructive factors of the development of China's export trade by Qualitative analysis method, thus concluded that it is necessary to strengthen international cooperation, strengthen communication and exchanges of various countries to boost the steady development of China's international trade. The innovation of this article is that it more comprehensively analyzes the influence of "One Belt One Road" on China's export trades.
A multifunctional resealable perfusion chip for cell culture and tissue engineering

We describe a multifunctional resealable perfusion chip to mimic the human environment for cell or tissue culture in vitro and to increase the efficiency of culture in this study. To meet the culture requirement of a two dimensional (2D) submerged cultures and an air liquid interface perfusion cultures, a multifunctional resealable perfusion chip was designed and fabricated. Human embryonic kidney cells (HEK293T) and human colon carcinoma cells (SW620) were submerged cultured in the chip for 72 h. Cell viability and cell proliferation tests were used to evaluate the performance of the chip. Moreover, an artificial epidermis was developed, and it lasted for 7 days for the submerged culture immortal human keratinocyte (HaCaT) monolayer and 35 days for the air liquid interface differentiated culture. The artificial epidermis cultured in the chip and in a conventional transwell were evaluated by the Live/Dead Viability/Cytotoxicity kit, histology, and hematoxylin and eosin staining. The stability and the benefits of our resealable chip were demonstrated by culture cells and epidermis tissue. Unlike a conventional static culture, no obvious advantage was observed in the 2D submerged culture of HEK293T and SW620 cells in the chip, but an outstanding advantage was observed in the 2D HaCaT cell culture with high density and a reconstructed epidermis. The cells grew well, and the epidermis was successfully reconstructed. This result implies that our multifunctional chip has great potential in cell culture and tissue engineering applications.
Reliable and versatile immortal muscle cell models from healthy and myotonic dystrophy type 1 primary human myoblasts.
Venue: Experimental cell research

Primary human skeletal muscle cells (hSkMCs) are invaluable tools for deciphering the basic molecular mechanisms of muscle related biological processes and pathological alterations. Nevertheless, their use is quite restricted due to poor availability, short life span and variable purity of the cells during in vitro culture. Here, we evaluate a recently published method of hSkMCs immortalization, relying on ectopic expression of cyclin D1 (CCND1) cyclin dependent kinase 4 (CDK4) and telomerase (TERT) in myoblasts from healthy donors (n=3) and myotonic dystrophy type 1 (DM1) patients (n=2) The efficacy to maintain the myogenic and non transformed phenotype, as well as the main pathogenetic hallmarks of DM1, has been assessed. Combined expression of the three genes i) maintained the CD56(NCAM) positive myoblast population and differentiation potential; ii) preserved the non transformed phenotype and iii) maintained the CTG repeat length, amount of nuclear foci and aberrant alternative splicing in immortal muscle cells. Moreover, immortal hSkMCs displayed attractive additional features such as structural maturation of sarcomeres, persistence of Pax7 positive cells during differentiation and complete disappearance of nuclear foci following (CAG)7 antisense oligonucleotide (ASO) treatment. Overall, the CCND1, CDK4 and TERT immortalization yields versatile, reliable and extremely useful human muscle cell models to investigate the basic molecular features of human muscle cell biology, to elucidate the molecular pathogenetic mechanisms and to test new therapeutic approaches for DM1 in vitro.
Profiling consumers the role of personal values in consumer preferences

Models of consumer choice often fail to explain why individual consumers are drawn towards different products. Yet, with the growing use of personalised marketing, an understanding of individual consumer motivations is increasingly relevant. Where research investigates the effect of psychometrics on consumer choice, the focus often lies on personality. However, the relationship between personality and consumer choice is notoriously spurious. In addition, consumer choice increasingly requires active decision making in today's rich product environment. Personality offers limited insights into drivers of such consumer decisions. Personal values may be a more suitable psychometric. Theoretical work on values indicates their relevance in decision making and behaviour. Values describe a person's underlying goals and ambitions, reflecting their core needs and drivers. This thesis explores whether values meaningfully explain why consumers prefer products at the category, product variant and brand level, and investigates the predictive strength of values in different consumer choice scenarios. It does so by examining purchase records, social media activity, and self report data to test a series of predictive, structural and group differences models. The thesis contributes an original conceptual and methodological framework for assessing the role of values in consumer behaviours. It further contributes a text based measure of values to ease application in consumer settings. Results suggest that: 1. Values are correlated with preference for product category (Chapter 4) 2. Individual differences in values significantly predict product choice in the supermarket (Chapter 5) 3. Individual differences in consumer brand affiliation predict values with moderate accuracy (Chapter 6) These findings contribute to a more comprehensive understanding of the role of values in consumer preference and their feasibility and usefulness for application in personalisation and consumer insight.
Understanding Booms and Busts in Housing Markets
Venue: Journal of Political Economy

Some booms in housing prices are followed by busts. Others are not. It is generally difficult to find observable fundamentals that are useful for predicting whether a boom will turn into a bust or not. We develop a model consistent with these observations. Agents have heterogeneous expectations about long run fundamentals but change their views because of "social dynamics." Agents with tighter priors are more likely to convert others to their beliefs. Boom bust episodes typically occur when skeptical agents happen to be correct. The booms that are not followed by busts typically occur when optimistic agents happen to be correct.
Demystifying the Chinese Housing Boom
Venue: NBER Macroeconomics Annual

We construct housing price indices for 120 major cities in China in 2003 2013 based on sequential sales of new homes within the same housing developments. By using these indices and detailed information on mortgage borrowers across these cities, we find enormous housing price appreciation during the decade, which was accompanied by equally impressive growth in household income, except in a few first tier cities. While bottom income mortgage borrowers endured severe financial burdens by using price to income ratios over eight to buy homes, their participation in the housing market remained steady and their mortgage loans were protected by down payments commonly in excess of 35 percent. As such, the housing market is unlikely to trigger an imminent financial crisis in China, even though it may crash with a sudden stop in the Chinese economy and act as an amplifier of the initial shock.
Financialization and housing: Between globalization and Varieties of Capitalism

In the literature, one finds various explanations for the rise of financialized capitalism. In the different strands of financialization literature, housing either plays a minor role or is simply seen as one of the bearers of financialization. The relations between housing and financialization are under researched and under theorized. This article, first, looks at the rise of housing finance as an integral part of macro economic policy, and second, at the role of financial globalization in the rise of housing finance. Housing is seen as an absorber of a 'wall of money' but the absorption of finance by housing is a very uneven process. Four trajectories of national institutional structures are suggested, and it is discussed how capital flows are absorbed in each of these trajectories. Finally, it is discussed what this tells about the geographies of financialized capitalism, and its relations to debt, housing, mortgage markets and the spatial fix.
The financialisation of rental housing: A comparative analysis of New York City and Berlin

This paper compares how recent waves of private equity real estate investment have reshaped the rental housing markets in New York and Berlin. Through secondary analysis of separate primary research projects, we explore financialisation's impact on tenants, neighbourhoods, and urban space. Despite their contrasting market contexts and investor strategies, financialisation heightened existing inequalities in housing affordability and stability, and rearranged spaces of abandonment and gentrification in both cities. Conversely cities themselves also shaped the process of financialisation, with weakened rental protections providing an opening to transform affordable housing into a new global asset class. We also show how financialisation's adaptability in the face of changing market conditions entails ongoing, but shifting processes of uneven development. Comparative studies of financialisation can help highlight geographically disparate, but similar exposures to this global process, thus contributing to a critical urban politics of finance that crosses boundaries of space, sector and scale.
Characterizing User Mobility from the View of 4G Cellular Network
Venue: 2016 17th IEEE International Conference on Mobile Data Management (MDM)

The mobility models obtained from mobile data are expected to affect numbers of fields, including urban planning, road traffic engineering, human sociology, epidemiology of infectious diseases, or telecommunication networks. Current user mobility models are mainly extracted from Call Detail Records (CDR) data or WiFi traces. However, CDR data only captures user movements during telephone calls or short message service (SMS) and WiFi traces can not provide intuitive understanding to mobility behavior of cellular network users in large scale. In this paper, we take the first step to investigate if the characteristics of mobility derived from 4G cellular data network is different from the previous findings utilizing other data sources, especially the widely used, CDR based approach. Utilizing our Hadoop based mobile big data processing platform together with a systematic analysis framework of user mobility, we present a comprehensive characterization of the mobility models from the 6 Terabyte (TB) 4G data traffic. Through the comparison with CDR models and 3G models from the view of user occurrence patterns, user movement patterns and dominant locations of users, we find that the 4G data traffic can provide finer granularity of mobility and location information.
Fast acclimation of freezing resistance suggests no influence of winter minimum temperature on the range limit of European beech.
Venue: Tree physiology

Low temperature extremes drive species distribution at a global scale. Here, we assessed the acclimation potential of freezing resistance in European beech (Fagus sylvaticaL. during winter. We specifically asked (i) how do beech populations growing in contrasting climates differ in their maximum freezing resistance, (ii) do differences result from genetic differentiation or phenotypic plasticity to preceding temperatures and (iii) is beech at risk of freezing damage in winter across its distribution range. We investigated the genetic and environmental components of freezing resistance in buds of adult beech trees from three different populations along a natural large temperature gradient in north western Switzerland, including the site holding the cold temperature record in Switzerland. Freezing resistance of leaf primordia in buds varied significantly among populations, with LT50values (lethal temperature for 50% of samples) ranging from 25 to 40 degC, correlating with midwinter temperatures of the site of origin. Cambial meristems and the pith of shoots showed high freezing resistance in all three populations, with only a trend to lower freezing resistance at the warmer site. After hardening samples at 6 degC for 5 days, freezing resistance of leaf primordia increased in all provenances by up to 4.5 K. After additional hardening at 15 degC for 3 days, all leaf primordia were freezing resistant to 40 degC. We demonstrate that freezing resistance ofF. sylvaticahas a high ability to acclimate to temperature changes in winter, whereas the genetic differentiation of freezing resistance among populations seems negligible over this small geographic scale but large climatic gradient. In contrast to the assumption made in most of the species distribution models, we suggest that absolute minimum temperature in winter is unlikely to shape the cold range limit of beech. We conclude that the rapid acclimation of freezing resistance to winter temperatures allows beech to track changing climatic conditions, especially during unusually warm winters interrupted by very cold weather.
Attribute Truss Community Search
Venue: ArXiv

Recently, community search over graphs has attracted significant attention and many algorithms have been developed for finding dense subgraphs from large graphs that contain given query nodes. In applications such as analysis of protein protein interaction (PPI) networks, citation graphs, and collaboration networks, nodes tend to have attributes. Unfortunately, previously developed community search algorithms ignore these attributes and result in communities with poor cohesion w.r.t. their node attributes. In this paper, we study the problem of attribute driven community search, that is, given an undirected graph $G$ where nodes are associated with attributes, and an input query $Q$ consisting of nodes $V_q$ and attributes $W_q$ find the communities containing $V_q$ in which most community members are densely inter connected and have similar attributes. We formulate our problem of finding attributed truss communities (ATC) as finding all connected and close k truss subgraphs containing $V_q$ that are locally maximal and have the largest attribute relevance score among such subgraphs. We design a novel attribute relevance score function and establish its desirable properties. The problem is shown to be NP hard. However, we develop an efficient greedy algorithmic framework, which finds a maximal $k$ truss containing $V_q$ and then iteratively removes the nodes with the least popular attributes and shrinks the graph so as to satisfy community constraints. We also build an elegant index to maintain the known $k$ truss structure and attribute information, and propose efficient query processing algorithms. Extensive experiments on large real world networks with ground truth communities shows the efficiency and effectiveness of our proposed methods.