Miracle-dz/UniFAR-FTUs huggingface dataset:
Vulnerability Assessment of OAuth Implementations in Android Applications

Enforcing security on various implementations of OAuth in Android apps should consider a wide range of issues comprehensively. OAuth implementations in Android apps differ from the recommended specification due to the provider and platform factors, and the varied implementations often become vulnerable. Current vulnerability assessments on these OAuth implementations are ad hoc and lack a systematic manner. As a result, insecure OAuth implementations are still widely used and the situation is far from optimistic in many mobile app ecosystems. To address this problem, we propose a systematic vulnerability assessment framework for OAuth implementations on Android platform. Different from traditional OAuth security analyses that are experiential with a restrictive three-party model, our proposed framework utilizes an systematic security assessing methodology that adopts a five-party, three-stage model to detect typical vulnerabilities of popular OAuth implementations in Android apps. Based on this framework, a comprehensive investigation on vulnerable OAuth implementations is conducted at the level of an entire mobile app ecosystem. The investigation studies the Chinese mainland mobile app markets (e.g., Baidu App Store, Tencent, Anzhi) that covers 15 mainstream OAuth service providers. Top 100 relevant relying party apps (RP apps) are thoroughly assessed to detect vulnerable OAuth implementations, and we further perform an empirical study of over 4,000 apps to validate how frequently developers misuse the OAuth protocol. The results demonstrate that 86.2% of the apps incorporating OAuth services are vulnerable, and this ratio of Chinese mainland Android app market is much higher than that (58.7%) of Google Play.
Nonintrusive and Structure Preserving Multiscale Integration of Stiff ODEs, SDEs, and Hamiltonian Systems with Hidden Slow Dynamics via Flow Averaging

We introduce a new class of integrators for stiff ODEs as well as SDEs. These integrators are (i) {\it Multiscale}: they are based on flow averaging and so do not fully resolve the fast variables and have a computational cost determined by slow variables (ii) {\it Versatile}: the method is based on averaging the flows of the given dynamical system (which may have hidden slow and fast processes) instead of averaging the instantaneous drift of assumed separated slow and fast processes. This bypasses the need for identifying explicitly (or numerically) the slow or fast variables (iii) {\it Nonintrusive}: A pre-existing numerical scheme resolving the microscopic time scale can be used as a black box and easily turned into one of the integrators in this paper by turning the large coefficients on over a microscopic timescale and off during a mesoscopic timescale (iv) {\it Convergent over two scales}: strongly over slow processes and in the sense of measures over fast ones. We introduce the related notion of two-scale flow convergence and analyze the convergence of these integrators under the induced topology (v) {\it Structure preserving}: for stiff Hamiltonian systems (possibly on manifolds), they can be made to be symplectic, time-reversible, and symmetry preserving (symmetries are group actions that leave the system invariant) in all variables. They are explicit and applicable to arbitrary stiff potentials (that need not be quadratic). Their application to the Fermi-Pasta-Ulam problems shows accuracy and stability over four orders of magnitude of time scales. For stiff Langevin equations, they are symmetry preserving, time-reversible and Boltzmann-Gibbs reversible, quasi-symplectic on all variables and conformally symplectic with isotropic friction.
Shoe cleat position during cycling and its effect on subsequent running performance in triathletes

Abstract Research with cyclists suggests a decreased load on the lower limbs by placing the shoe cleat more posteriorly, which may benefit subsequent running in a triathlon. This study investigated the effect of shoe cleat position during cycling on subsequent running. Following bike-run training sessions with both aft and traditional cleat positions, 13 well-trained triathletes completed a 30 min simulated draft-legal triathlon cycling leg, followed by a maximal 5 km run on two occasions, once with aft-placed and once with traditionally placed cleats. Oxygen consumption, breath frequency, heart rate, cadence and power output were measured during cycling, while heart rate, contact time, 200 m lap time and total time were measured during running. Cardiovascular measures did not differ between aft and traditional cleat placement during the cycling protocol. The 5 km run time was similar for aft and traditional cleat placement, at 1084 ± 80 s and 1072 ± 64 s, respectively, as was contact time during km 1 and 5, and heart rate and running speed for km 5 for the two cleat positions. Running speed during km 1 was 2.1% ± 1.8 faster (P < 0.05) for the traditional cleat placement. There are no beneficial effects of an aft cleat position on subsequent running in a short distance triathlon.
Elevated Asthma and Indoor Environmental Exposures Among Puerto Rican Children of East Harlem

Objective. East Harlem in New York City, a community with a large Puerto Rican population, has among the highest rates of asthma hospitalizations and mortality in the United States, but it is not known if the high rates are related to the ethnic composition, environmental or community factors, or if the higher rates reflect differentials in access to appropriate asthma care. A survey was conducted to: (a) estimate the prevalence of current asthma by ethnicity among school-age children, (b) assess indoor environmental risk factors for childhood asthma, and (c) assess health care utilization and school absences associated with childhood asthma. Design. A cross-sectional survey of parents of elementary school children, using a self-administered questionnaire with a 12-month recall on asthma symptoms based on the International Study of Asthma and Allergies in Childhood. Setting. Two public elementary schools in East Harlem (n = 1615 students 5–12 years of age). Results. Among the 1319 respondents (response rate 82%), the prevalence for current asthma (doctor or nurse diagnosis at any time plus wheezing in the past 12 months) was 23%. Puerto Rican children had a prevalence of 35%. Puerto Rican children reported both higher symptomatic frequencies and higher rates of physician diagnosis. Living in a home where cockroaches, rats, or mice had been seen in the past month and with a dust-enhancing heating system also was associated with having asthma, regardless of ethnicity. Compared with other children with asthma, Puerto Rican children with asthma were more likely to live in homes where rats or mice had been seen in the past month. Regardless of ethnicity, children with more frequent, more severe asthma symptoms and incomplete asthma action plans were more likely to have visited the emergency department in the past year. Puerto Rican children were more likely to have missed school because of their asthma in the past year. Conclusion. The prevalence of current asthma was significantly higher among Puerto Ricans, who had higher symptomatic frequency and greater diagnosis rates. Although all children with asthma in the East Harlem study appear to be sensitive to selected indoor environmental risk factors, only Puerto Rican children with asthma appear to be sensitive to the presence of rodents in their buildings. However, their higher school absence rate suggests problems with routine asthma management that could be addressed by improved medical management, programs to help parents manage their children's asthma, or school staff assistance with medications.
Place Identification, Social Cohesion, and Enviornmental Sustainability

In the study reported in this article the roles of social cohesion, residential satisfaction, and place identification are examined for their effect on place-related social identity and its consequential impact on attitudes to environmental sustainability. Two neighborhoods in Guildford, Surrey, England were selected on the basis of their social histories, housing types, and socioeconomic composition. Ninety residents in each neighborhood were sampled. Research methods included cognitive mapping and a questionnaire survey. A structural equation model was used to analyze the covariances between the different factors. The results show clear differences between the two neighborhoods in terms of residential satisfaction, with only some differences in terms of identification and social cohesion and sustainability. Conclusions are drawn that suggest an important relationship between identity and sustainability behavior that is suggestive for future research.
Cell Type-Specific Transcriptome of Brassicaceae Stigmatic Papilla Cells From a Combination of Laser Microdissection and RNA Sequencing

Pollination is an early and critical step in plant reproduction, leading to successful fertilization. It consists of many sequential processes, including adhesion of pollen grains onto the surface of stigmatic papilla cells, foot formation to strengthen pollen–stigma interaction, pollen hydration and germination, and pollen tube elongation and penetration. We have focused on an examination of the expressed genes in papilla cells, to increase understanding of the molecular systems of pollination. From three representative species of Brassicaceae (Arabidopsis thaliana, A. halleri and Brassica rapa), stigmatic papilla cells were isolated precisely by laser microdissection, and cell type-specific gene expression in papilla cells was determined by RNA sequencing. As a result, 17,240, 19,260 and 21,026 unigenes were defined in papilla cells of A. thaliana, A. halleri and B. rapa, respectively, and, among these, 12,311 genes were common to all three species. Among the17,240 genes predicted in A. thaliana, one-third were papilla specific while approximately half of the genes were detected in all tissues examined. Bioinformatics analysis revealed that genes related to a wide range of reproduction and development functions are expressed in papilla cells, particularly metabolism, transcription and membrane-mediated information exchange. These results reflect the conserved features of general cellular function and also the specific reproductive role of papilla cells, highlighting a complex cellular system regulated by a diverse range of molecules in these cells. This study provides fundamental biological knowledge to dissect the molecular mechanisms of pollination in papilla cells and will shed light on our understanding of plant reproduction mechanisms.
Engineered gene for Escherichia coli alkaline phosphatase for the construction of translational fusions.

Conjugates between different proteins are widely used in all fields of biochemistry. Recently, the possibility ofjoining proteins on the level of their genes has become more and more important and useful. One of the most attractive marker enzymes used for such conjugates is Escherichia coli alkaline phosphatase (EcphoA). Using oligonucleotide-directed mutagenesis, we have introduced the indicated restriction sites into the EcphoA gene (1) in order to facilitate the production of translational gene fusions (figure 1). Mutation I has produced a BamHI and an NlaIV site in front of the GTG start codon, Mutation II sites for SmaI, XmaI, HgICl and NlaIV at the boundary between the leader and the coding region, and Mutation IH sites for EcoRV and XbaI at the end of the coding region.
The Unique Value of Yin-Yang Balancing: A Critical Response

I welcome any well-informed debate over the unique value of Yin-Yang as a cognitive frame in the development of Chinese indigenous management research. The commentary by Xin Li to engage in a debate is timely. Xin Li and I share the same premise that ‘we need indigenous Chinese management research to offer new insights and contribute to the development of truly universal theories’ (Li, X., 2014: 8). That is the common ground upon which we can debate over how best to engage in indigenous research with confidence in balance so as to avoid both overconfidence and under-confidence. Where we depart from the above common ground is our different perspectives about the value of the Yin-Yang frame. Xin Li challenges my positive perspective on the unique value of the Yin-Yang frame on several dimensions. First, he characterizes my perspective as ‘both/and’ in sharp contrast to Aristotle’s ‘either/or’ logic. Second, he characterizes my perspective as arguing that ‘Yin-Yang thinking is superior to other logical systems and philosophies’ (Li, X., 2014: 8). Third, he implies that my perspective on the Yin-Yang frame is essentially a claim that ‘Westerners cannot think in a non-either/or way’ (Li, X., 2014: 8). Fourth, the above challenges are based upon his basic claim that the Yin-Yang frame is just one form of dialectical framing (Li, X., 2014). Based on these claims, Xin Li warns against the ‘danger of overconfidence’ among Chinese management scholars (Li, X., 2014: 8).
The Pathways of Problematic Sexual Behavior: A Literature Review of Factors Affecting Adult Sexual Behavior in Survivors of Childhood Sexual Abuse

Research shows that many adult sexual behaviors may be related to childhood sexual abuse (CSA), ranging from withdrawal and dysfunction on one end of the spectrum to hypersexuality and compulsion on the other, but it is unclear why some individuals respond to CSA by withdrawal, fear and anxiety, while others respond with impulsiveness and acting-out behavior. This literature review finds that there are two distinct factors which account for differences in sexual behavior among adult survivors of CSA: (a) the gender of the victim, and (b) the age at onset of victimization. Based on this data, an integrative framework is proposed, incorporating elements of social learning theory and psychoanalytic concepts, to explain the etiology of problematic adult sexual behaviors, as well as corresponding implications for clinical treatment.
Non-conformisme van leerlingen: Afhaken in de klasseninteractie

This article addresses student disengagement and relates it to the pedagogical approach in the math classes within the two multi-ethnic schools under study. More specifically, the social norms underlying classroom interactions are analysed for their correspondence with 'youth interaction modes', with how adolescents interact when they are among themselves. Also, students' and teachers' perceptions of non-participation, its ethnic distribution and relation to the pedagogical context are described. The findings suggest that the relational needs of students, as well as the feasibility of 'interactive' and peer-mediated methods of teaching in the multi-ethnic classroom, merit more study.
Acoustic-prosodic entrainment in Slovak, Spanish, English and Chinese: A cross-linguistic comparison

It is well established that speakers of Standard American English entrain, or become more similar to each other as they speak, in acoustic-prosodic features of their speech as well as other behaviors. Entrainment in other languages is less well understood. This work uses a variety of metrics to measure acoustic-prosodic entrainment in four comparable corpora of task-oriented conversational speech in Slovak, Spanish, English and Chinese. We report the results of these experiments and describe trends and patterns that can be observed from comparing acoustic-prosodic entrainment in these four languages. We find evidence of a variety of forms of entrainment across all the languages studied, with some evidence of individual differences as well within the languages.
Multi-scale validation of a new soil freezing scheme for a land-surface model with physically-based hydrology

Soil freezing is a major feature of boreal regions with substantial impact on climate. The present paper describes the implementation of the thermal and hydrological effects of soil freezing in the land surface model ORCHIDEE, which includes a physical description of continental hydrology. The new soil freezing scheme is evaluated against analytical solutions and in-situ observations at a variety of scales in order to test its numerical robustness, explore its sensitivity to parameterization choices and confront its performance to field measurements at typical application scales. Our soil freezing model exhibits a low sensitivity to the vertical discretization for spatial steps in the range of a few millimetres to a few centimetres. It is however sensitive to the temperature interval around the freezing point where phase change occurs, which should be 1 °C to 2 °C wide. Furthermore, linear and thermodynamical parameterizations of the liquid water content lead to similar results in terms of water redistribution within the soil and thermal evolution under freezing. Our approach does not allow firm discrimination of the performance of one approach over the other. The new soil freezing scheme considerably improves the representation of runoff and river discharge in regions underlain by permafrost or subject to seasonal freezing. A thermodynamical parameterization of the liquid water content appears more appropriate for an integrated description of the hydrological processes at the scale of the vast Siberian basins. The use of a subgrid variability approach and the representation of wetlands could help capture the features of the Arctic hydrological regime with more accuracy. The modeling of the soil thermal regime is generally improved by the representation of soil freezing processes. In particular, the dynamics of the active layer is captured with more accuracy, which is of crucial importance in the prospect of simulations involving the response of frozen carbon stocks to future warming. A realistic simulation of the snow cover and its thermal properties, as well as the representation of an organic horizon with specific thermal and hydrological characteristics, are confirmed to be a pre-requisite for a realistic modeling of the soil thermal dynamics in the Arctic.
Africa's Future, Africa's Challenge: Early Childhood Care and Development in Sub-Saharan Africa

This book seeks to achieve a balance, describing challenges that are being faced as well as developments that are underway. It seeks a balance in terms of the voices heard, including not just voices of the North commenting on the South, but voices from the South, and in concert with the North. It seeks to provide the voices of specialists and generalists, of those from international and local organizations, from academia and the field. It seeks a diversity of views and values. Such diversity and complexity are the reality of Sub-Saharan Africa (SSA) today. The major focus of this book is on SSA from the Sahel south. Approximately 130 million children between birth and age 6 live in SSA. Every year 27 million children are born, and every year 4.7 million children under age 5 die. Rates of birth and of child deaths are consistently higher in SSA than in any other part of the world; the under-5 mortality rate of 163 per 1,000 is twice that of the rest of the developing world and 30 times that of industrialized countries (UNICEF 2006). Of the children who are born, 65 percent will experience poverty, 14 million will be orphans affected by HIV/AIDS directly and within their families and one-third will experience exclusion because of their gender or ethnicity.
A Role for Focal Adhesions and Extracellular Matrix in Traumatic Axonal Injury

The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters. Abstract Traumatic Brain Injury (TBI) is linked to a diverse range of diffuse pathological damage for which there is a severe lack of therapeutic options. A major limitation to drug development is the inability to identify causal mechanisms that link head trauma to the multitude of secondary injury cascades that underlie neuropathology. To elucidate these relationships, it is important to consider how physical forces are transmitted through the brain across multiple spatial scales ranging from the whole head to the sub-cellular level. In doing so, the mechanical behavior of the brain is typically characterized solely by its material properties and biological structure. Alternatively, forces transmitted through distinct cellular and extracellular structures have been shown to influence physiological processes in multiple cell types through the transduction of mechanical forces into cellular chemical responses. As an essential component of various biological processes, these mechanotransduction events are regulated by mechanical cues directed through extracellular matrix (ECM) and cell adhesion molecules (CAM) to mechanosensitive intra-cellular structures such as focal adhesions (FAs). Using a series of in vitro models, we have implicated FAs in the cellular mechanism of traumatic axonal injury by showing that forces directed through these structures potentiate injury levels and, moreover, that inhibition of FA-mediated signaling pathways may be neuroprotective. In addition, we show that localizing trauma forces through specific brain ECM results in differential injury rates, further implicating mechanosensitive cell-ECM linkages in the mechanism of TBI. Therefore, we show that FAs play a major role in axonal injury at low strain magnitudes indicating that cellular mechanotransduction may be an important mechanism underlying the initiation of cell and sub-cellular injuries ultimately responsible for the diffuse pathological damage and clinical symptoms observed in diffuse axonal injury. Furthermore, since these mechanisms may present the earliest events in the complex sequelae associated with TBI, they also represent potential therapeutic opportunities.
Discontinuous Finite Element Methods for Interface Problems: Robust A Priori and A Posteriori Error Estimates

For elliptic interface problems in two and three dimensions, this paper studies a priori and residual-based a posteriori error estimations for the Crouzeix--Raviart nonconforming and the discontinuous Galerkin finite element approximations. It is shown that both the a priori and the a posteriori error estimates are robust with respect to the diffusion coefficient, i.e., constants in the error bounds are independent of the jump of the diffusion coefficient. The a priori estimates are also optimal with respect to local regularity of the solution. Moreover, we obtained these estimates with no assumption on the distribution of the diffusion coefficient.
Post-purchase disadvantages of a less preferred brand and how they can be overcome: an examination of regret and attribution

This research examines the post-purchase experience after choosing the most preferred brand versus a less preferred brand. When they experience positive product outcomes, those who chose their most preferred brand tend to give credit to the brand, whereas those who chose a less preferred brand attribute it to their smart choice. In contrast, with negative outcomes, those with the most preferred brand place the blame on themselves, whereas those with a less preferred brand blame the brand. Nevertheless, a silver lining emerges when brand attribution and satisfaction increase to the level of the most preferred brand after two consecutive positive experiences with a less preferred brand. Repeated positive experience could turn people's attention to more on good product quality of a less preferred brand than on cheaper price.