Miracle-dz/UniFAR-FTUs huggingface dataset:
Rethinking Reciprocity

Reciprocal behavioral has been found to play a significant role in many economic domains, including labor supply, tax compliance, voting behavior, and fund-raising. What explains individuals’ tendency to respond to the kindness of others? Existing theories posit internal preferences for the welfare of others, inequality aversion, or utility from repaying others’ kindness. However, recent evidence on the determinants of (unilateral) sharing decisions suggests that external factors such as social pressure are equally important. So far, this second wave of social preference theories has had little spillover to two-sided reciprocity environments, inwhich one individual responds to the actions of another. We present a novel laboratory reciprocity experiment (the double-dictator game with sorting) and show that failure to account for external motives leads to a significant overestimation of internal motives such as fairness and altruism. The experimental data illustrate the importance of combining reducedform and structural analyses to disentangle internal and external determinants of prosocial behavior. 36.1 Review in Advance first posted online on May 9, 2014. (Changes may still occur before final publication online and in print.) Changes may still occur before final publication online and in print A nn u. R ev . E co n. 2 01 4. 6. D ow nl oa de d fr om w w w . a nn ua lr ev ie w s. or g by U ni ve rs ity o f C al if or ni a B er ke le y on 0 7/ 21 /1 4. F or p er so na l u se o nl y.
The effect of temperature on dielectric charging of capacitive MEMS

The present paper investigates the effect of temperature on the charging process in dielectric films of MEMS capacitive switches. The investigation includes the assessment of MIM capacitors and MEMS capacitive switches. The data analysis shows that the dielectric charging is thermally activated and the process can be described by a system with a wide distribution of relaxation times that exhibits power-law relaxation. The activation energies obtained from MIM and MEMS are attributed to different charge collection mechanisms.
On the quasi-steady aerodynamics of normal hovering flight part II: model implementation and evaluation

This paper introduces a generic, transparent and compact model for the evaluation of the aerodynamic performance of insect-like flapping wings in hovering flight. The model is generic in that it can be applied to wings of arbitrary morphology and kinematics without the use of experimental data, is transparent in that the aerodynamic components of the model are linked directly to morphology and kinematics via physical relationships and is compact in the sense that it can be efficiently evaluated for use within a design optimization environment. An important aspect of the model is the method by which translational force coefficients for the aerodynamic model are obtained from first principles; however important insights are also provided for the morphological and kinematic treatments that improve the clarity and efficiency of the overall model. A thorough analysis of the leading-edge suction analogy model is provided and comparison of the aerodynamic model with results from application of the leading-edge suction analogy shows good agreement. The full model is evaluated against experimental data for revolving wings and good agreement is obtained for lift and drag up to 90° incidence. Comparison of the model output with data from computational fluid dynamics studies on a range of different insect species also shows good agreement with predicted weight support ratio and specific power. The validated model is used to evaluate the relative impact of different contributors to the induced power factor for the hoverfly and fruitfly. It is shown that the assumption of an ideal induced power factor (k = 1) for a normal hovering hoverfly leads to a 23% overestimation of the generated force owing to flapping.
Distinct Cell Wall Architectures in Seed Endosperms in Representatives of the Brassicaceae and Solanaceae1[C][W][OA]

In some species, a crucial role has been demonstrated for the seed endosperm during germination. The endosperm has been shown to integrate environmental cues with hormonal networks that underpin dormancy and seed germination, a process that involves the action of cell wall remodeling enzymes (CWREs). Here, we examine the cell wall architectures of the endosperms of two related Brassicaceae, Arabidopsis (Arabidopsis thaliana) and the close relative Lepidium (Lepidium sativum), and that of the Solanaceous species, tobacco (Nicotiana tabacum). The Brassicaceae species have a similar cell wall architecture that is rich in pectic homogalacturonan, arabinan, and xyloglucan. Distinctive features of the tobacco endosperm that are absent in the Brassicaceae representatives are major tissue asymmetries in cell wall structural components that reflect the future site of radicle emergence and abundant heteromannan. Cell wall architecture of the micropylar endosperm of tobacco seeds has structural components similar to those seen in Arabidopsis and Lepidium endosperms. In situ and biomechanical analyses were used to study changes in endosperms during seed germination and suggest a role for mannan degradation in tobacco. In the case of the Brassicaceae representatives, the structurally homogeneous cell walls of the endosperm can be acted on by spatially regulated CWRE expression. Genetic manipulations of cell wall components present in the Arabidopsis seed endosperm demonstrate the impact of cell wall architectural changes on germination kinetics.
Against the Grain: Couples, Gender, and the Reframing of Parenting

Acknowledgements Part I. Setting the Scene Introduction 1. Establishing the Context 2. The Study Part II. Getting Started: Caring for Children in the Preschool Years Introduction 3. The "Crossovers": Breadwinner Mothers with Partners at Home 4. "Shift-Workers" and "Dual-Dividers": Sharing Earning, Sharing Caring Part III. The Longer View: Couples with School-Age Children Introduction 5. Challenges on the Path to Change 6. Parents as Peers Part IV. Review and Reflection Introduction 7. Parenting and the Undoing of Gender Appendix: The Study Participants Notes References Index
Comparative systems biology across an evolutionary gradient within the Shewanella genus

To what extent genotypic differences translate to phenotypic variation remains a poorly understood issue of paramount importance for several cornerstone concepts of microbiology including the species definition. Here, we take advantage of the completed genomic sequences, expressed proteomic profiles, and physiological studies of 10 closely related Shewanella strains and species to provide quantitative insights into this issue. Our analyses revealed that, despite extensive horizontal gene transfer within these genomes, the genotypic and phenotypic similarities among the organisms were generally predictable from their evolutionary relatedness. The power of the predictions depended on the degree of ecological specialization of the organisms evaluated. Using the gradient of evolutionary relatedness formed by these genomes, we were able to partly isolate the effect of ecology from that of evolutionary divergence and to rank the different cellular functions in terms of their rates of evolution. Our ranking also revealed that whole-cell protein expression differences among these organisms, when the organisms were grown under identical conditions, were relatively larger than differences at the genome level, suggesting that similarity in gene regulation and expression should constitute another important parameter for (new) species description. Collectively, our results provide important new information toward beginning a systems-level understanding of bacterial species and genera.
Family Differentiation, Family Recreation, and Symptoms of Eating Disorders

FAMILY DIFFERENTIATION, FAMILY RECREATION, AND SYMPTOMS OF EATING DISORDERS Birgitta Baker Department of Recreation Management and Youth Leadership Master of Science The purpose of this study was to examine the relationships between family differentiation, family recreation and symptoms of eating disorders. The Family Intrusiveness Scales, the Perceived Social Support from Family, the Family Leisure Activity Profile and the Eating Attitudes Test were used. Participants were students at two large universities, one in the East and one in the West. Data were analyzed using correlation and ANCOVA. Findings supported the hypothesis that a positive relationship exists between family leisure involvement and family differentiation. In addition, a negative relationship between family differentiation and symptoms of eating disorders for individuals whose parents are not in their first marriage was indicated by the results.
Topic labeled text classification: a weakly supervised approach

Supervised text classifiers require extensive human expertise and labeling efforts. In this paper, we propose a weakly supervised text classification algorithm based on the labeling of Latent Dirichlet Allocation (LDA) topics. Our algorithm is based on the generative property of LDA. In our algorithm, we ask an annotator to assign one or more class labels to each topic, based on its most probable words. We classify a document based on its posterior topic proportions and the class labels of the topics. We also enhance our approach by incorporating domain knowledge in the form of labeled words. We evaluate our approach on four real world text classification datasets. The results show that our approach is more accurate in comparison to semi-supervised techniques from previous work. A central contribution of this work is an approach that delivers effectiveness comparable to the state-of-the-art supervised techniques in hard-to-classify domains, with very low overheads in terms of manual knowledge engineering.
Measuring the Accuracy of Survey Responses Using Administrative Register Data: Evidence from Denmark

This paper shows how Danish administrative register data can be combined with survey data at the person level and be used to validate information collected in the survey. Register data are collected by automatic third party reporting and the potential errors associated with the two data sources are therefore plausibly orthogonal. Two examples are given to illustrate the potential of combining survey and register data. In the first example expenditure survey records with information about total expenditure are merged with income tax records holding information about income and wealth. Income and wealth data are used to impute total expenditure which is then compared to the survey measure. Results suggest that the two measures match each other well on average. In the second example we compare responses to a one-shot recall question about total gross personal income (collected in another survey) with tax records. Tax records hold detailed information about different types of income and this makes it possible to test if errors in the survey response are related to the reporting of particular types of income. Results show bias in the mean and that the survey error has substantial variance. Results also show that the errors are correlated with conventional covariates suggesting that the errors are not of the classical type. The latter example illustrates how Denmark can be used as a "laboratory" for future validation studies. Tax records with detailed information about different types of income are available for the entire Danish population and can be readily merged to survey data. This makes it possible to test the ability of respondents to accurately report different types of income using different interviewing techniques and questions. The examples presented in this paper are based on cross section data. However, the possibility to issue surveys repeatedly to the same persons and linking up to longitudinal tax records provides an opportunity to learn more about the time series properties of measurement errors, a subject about which little evidence exist, in the future.
Analogien, Metaphern und die Entstehung neuer Theorien : Kommentar zu: Gerd Gigerenzer, "Woher kommen Theorien über kognitive Prozesse?"

Empfohlene Zitierung / Suggested Citation: Jäger, Siegfried: Analogien, Metaphern und die Entstehung neuer Theorien: Kommentar zu: Gerd Gigerenzer, "Woher kommen Theorien über kognitive Prozesse? ". In: Schorr, Angela(Ed.): Die Psychologie und die Methodenfrage: Reflexionen zu einem zeitlosen Thema. Göttingen : Hogrefe, 1994. ISBN 3-8017-0694-X, 128-133. https://nbnresolving.org/urn:nbn:de:0168-ssoar-39805
Statins and Finasteride Use Differentially Modify the Impact of Metformin on Prostate Cancer Incidence in Men with Type 2 Diabetes.

BACKGROUND Metformin has shown promise for cancer prevention. Prior studies suggested that metformin might interact potential prostate cancer (PCa) prevention agents: finasteride and statins. This study assessed if concurrent use of statins or finasteride modified the long-term impact of metformin on PCa risk in men with type 2 diabetes (T2DM). MATERIALS AND METHODS The study cohort consisted of 71,999 men with T2DM seen in the Veteran Administration Health Care System, without prior cancer or liver diseases, nor prescription of thiazolidinediones or insulin between FY2003-FY2013. Cox proportional hazard analyses (adjusting for covariates and propensity scores of metformin use) were conducted to compare the hazard ratio (HR) of PCa associated with metformin use between statins or finasteride users and none users. RESULTS Mean follow-up was 6.4±2.8 years; 5.2% (N= 3,756) of the cohort subsequently received a PCa diagnosis. Both statins and finasteride significantly modified the impact of metformin on PCa incidence (p-value<0.001): HR's of PCa associated with metformin use were 0.89 (p-value=0.02) among non-statin/non-finasteride users, 0.73 (p-value<0.001) among statin users, and 1.42 (p-value<0.001) among finasteride users. CONCLUSION Metformin was associated with reduced PCa risk in men with T2DM. This impact was enhanced by statins but reversed by finasteride. Metformin, statins, and finasteride are potential PCa prevention agents. The interaction of these drugs on PCa risk needs further confirmation in other cohorts. Our finding of differential impacts of metformin, statins, and finasteride (alone or in combination) on PCa risk is informative for treatment management in men at risk for PCa and T2DM.
Effects of Long Term Supplementation of Anabolic Androgen Steroids on Human Skeletal Muscle

The effects of long-term (over several years) anabolic androgen steroids (AAS) administration on human skeletal muscle are still unclear. In this study, seventeen strength training athletes were recruited and individually interviewed regarding self-administration of banned substances. Ten subjects admitted having taken AAS or AAS derivatives for the past 5 to 15 years (Doped) and the dosage and type of banned substances were recorded. The remaining seven subjects testified to having never used any banned substances (Clean). For all subjects, maximal muscle strength and body composition were tested, and biopsies from the vastus lateralis muscle were obtained. Using histochemistry and immunohistochemistry (IHC), muscle biopsies were evaluated for morphology including fiber type composition, fiber size, capillary variables and myonuclei. Compared with the Clean athletes, the Doped athletes had significantly higher lean leg mass, capillary per fibre and myonuclei per fiber. In contrast, the Doped athletes had significantly lower absolute value in maximal squat force and relative values in maximal squat force (relative to lean body mass, to lean leg mass and to muscle fiber area). Using multivariate statistics, an orthogonal projection of latent structure discriminant analysis (OPLS-DA) model was established, in which the maximal squat force relative to muscle mass and the maximal squat force relative to fiber area, together with capillary density and nuclei density were the most important variables for separating Doped from the Clean athletes (regression = 0.93 and prediction = 0.92, p<0.0001). In Doped athletes, AAS dose-dependent increases were observed in lean body mass, muscle fiber area, capillary density and myonuclei density. In conclusion, long term AAS supplementation led to increases in lean leg mass, muscle fiber size and a parallel improvement in muscle strength, and all were dose-dependent. Administration of AAS may induce sustained morphological changes in human skeletal muscle, leading to physical performance enhancement.
A 50-fJ 10-b 160-MS/s Pipelined-SAR ADC Decoupled Flip-Around MDAC and Self-Embedded Offset Cancellation

This paper presents a time-interleaved pipelined-SAR ADC with on-chip offset cancellation technique. The design reuses the SAR ADC to perform offset cancellation, thus saving calibration costs. The inter-stage gain of 8 is implemented in a 6-bit capacitive DAC with a flip-around operation. A capacitive attenuation used in both the first and second DACs significantly reduces the power dissipation and optimizes conversion speed. The detailed circuit implementation of the subthreshold op-amp is discussed, and the possible limits caused by nonidealities are analyzed for a proper correction in the design. These include the inter-stage-gain error and various channel mismatches of offset, gain, and timing. Measurements of a 65-nm CMOS prototype operating at 160 MS/s and 1.1-V supply show an SNDR of 55.4 dB and 2.72 mW total power consumption.
Generation of gut‐homing T cells and their localization to the small intestinal mucosa

Summary: The intestinal mucosa represents the largest body surface toward the external environment and harbors numerous T lymphocytes that take up resident within the intestinal epithelium or in the underlying lamina propria (LP). The intraepithelial lymphocytes include subsets of ‘unconventional’ T cells with unclear ontogeny and reactivity that localize to this site independently of antigen‐specific activation in secondary lymphoid organs. In contrast, the majority of the ‘conventional’ gut T cells are recruited into the intestinal mucosa subsequent to their activation in intestinal inductive sites, including Peyer’s patches (PPs) and mesenteric lymph nodes (MLNs). T cells homing to the small intestine express a distinct pattern of homing molecules, allowing them to interact with and transmigrate across intestinal postcapillary endothelium. At least some of these homing molecules, including the integrin α4β7 and the chemokine receptor CCR9, are induced on T cells during their activation in PPs or MLNs. Mucosal dendritic cells (DCs) play a key role in this process, but not all intestinal DCs possess the ability to confer a gut‐homing capacity to T cells. Instead, functionally specialized CD103+ DCs derived from the small intestinal LP appear to selectively regulate T‐cell homing to the small intestine.
Estimating conductivity distribution of transmural wedges of the ventricle using parallel genetic algorithms

In this work we use a computational human left ventricular wedge to simulate regions of abnormal intra- and extra-cellular conductivities that mimic some known pathological conditions. We propose a method based on genetic algorithms that aims on estimating the distribution of intra- and extra-cellular conductivities, by comparing cardiac simulations to some given transmural electrograms. The methods were developed for distributed systems and the results were obtained in a cluster composed of 8 computers interconnected by a fast network switching device. The results suggest that the proposed method is able to approximately estimate both intra- and extra-cellular conductivity distributions from transmural electrograms with an accuracy of 40%.
Assessment Tool for NURSING STUDENT Computer Competencies

ABSTRACT Computer skills have been established as important for nursing students and for graduate nurses. No current research was found on the best method to evaluate the skills of incoming nursing students. The purpose of this descriptive, correlational study was to compare student ratings of their computer competency to their performance of those skills on a computer‐graded assessment. A convenience sample of 87 nursing students was used. There was a low, but significant correlation between the scores on the survey and the assessment. The results suggest that students rate themselves higher on their skills than their actual performance of computer skills. Implications for educators are presented, and the value of using a computer‐graded assessment is discussed.
Molecular basis for amyloid-β polymorphism

Amyloid-beta (Aβ) aggregates are the main constituent of senile plaques, the histological hallmark of Alzheimer’s disease. Aβ molecules form β-sheet containing structures that assemble into a variety of polymorphic oligomers, protofibers, and fibers that exhibit a range of lifetimes and cellular toxicities. This polymorphic nature of Aβ has frustrated its biophysical characterization, its structural determination, and our understanding of its pathological mechanism. To elucidate Aβ polymorphism in atomic detail, we determined eight new microcrystal structures of fiber-forming segments of Aβ. These structures, all of short, self-complementing pairs of β-sheets termed steric zippers, reveal a variety of modes of self-association of Aβ. Combining these atomic structures with previous NMR studies allows us to propose several fiber models, offering molecular models for some of the repertoire of polydisperse structures accessible to Aβ. These structures and molecular models contribute fundamental information for understanding Aβ polymorphic nature and pathogenesis.