Miracle-dz/UniFAR-FTUs huggingface dataset:
0 51 00 64 v 1 1 7 O ct 2 00 5 A Contour Integral Representation for the Dual Five-Point Function and a Symmetry of the Genus Four Surface in R 6

The invention of the “dual resonance model” N -point functionsBN motivated the development of current string theory. The simpl est of these models, the four-point functionB4, is the classical Euler Beta function. Many standard methods of complex analysis in a single variable ha v been applied to elucidate the properties of the Euler Beta function, lead ing, for example, to analytic continuation formulas such as the contour-inte gral representation obtained by Pochhammer in 1890. However, the precise fe atur s of the expected multiple-complex-variable generalizations to BN have not been systematically studied. Here we explore the geometry under lying the dual five-point functionB5, the simplest generalization of the Euler Beta function. The original integrand defining B5 leads to a polyhedral structure for the five-crosscap surface, embedded in RP5, that has 12 pentagonal faces and a symmetry group of order 120 in PGL(6). We find a Pochhammerlike representation for B5 that is a contour integral along a surface of genus five in CP2#4CP2. The symmetric embedding of the five-crosscap surface in RP5 is doubly covered by a corresponding symmetric embedding of the surface of genus four inS5 ⊂ R6 that has a polyhedral structure with 24 Email: {hansona, jsha }@indiana.edu 1 pentagonal faces and a symmetry group of order 240 in O(6). These symmetries enable the construction of elegant visualizations of these surfaces. The key idea of the paper is to realize that the compactificati on of the set of five-point cross-ratios forms a smooth real algebraic sub variety that is the five-crosscap surface in RP5. It is in the complexification of this surface that we construct the contour integral representation for B5. Our methods are generalizable in principle to higher dimensions, and th erefore should be of interest for further study.
Instantaneous degrees of freedom of downlink interference channels with multiuser diversity

Independent channel fading across different users in a wireless network enables the system to exploit multiuser diversity. In this paper, we investigate the impact of user scheduling on the instantaneous degrees of freedom of multiple interfering cellular networks. Particularly, we consider a homogeneous multiple cellular downlink scenario with multiple users per cell. We show that if the number of users in a cell scales faster than linearly with SNR, the instantaneous degrees of freedom with multiuser diversity increases and converges to L in both mean-square (m.s.) sense and almost sure (a.s.) sense for an L-cell downlink interference channel, even though very limited channel feedback is needed. Each user is equipped with L−1 antennas to capture the multidimensional out-of-cell interference from other base stations, while the base station has a single antenna. The user scheduling strategy that achieves L instantaneous degrees of freedom is to poll users experiencing only a small amount of out-of-cell interference. The instantaneous degrees of freedom with multiuser diversity and its convergence mode are compared to those of conventional interference alignment. Furthermore, the user scaling law is relaxed when ergodic throughout is analyzed.
Localized topology control for heterogeneous wireless ad-hoc networks

We study topology control in heterogeneous wireless ad hoc networks, where mobile hosts may have different maximum transmission powers and two nodes are connected if they are within the maximum transmission range of each other. We present several strategies so that all wireless nodes self-maintain sparse and power efficient topologies in heterogeneous network environments with low communication cost. The first structure is sparse and can be used for broadcasting. The second structure keeps the minimum power consumption path, and the third structure is a length and power spanner with a bounded degree. Both the second and third structures are power efficient and can be used for unicast. Here a structure is power efficient if the total power consumption of the least cost path connecting any two nodes in it is no more than a small constant factor of that in the original heterogeneous communication graph. All our methods use at most O(n) total messages, where each message has O(logn) bits.
Direct imaging of thermally driven domain wall motion in magnetic insulators.

Thermally induced domain wall motion in a magnetic insulator was observed using spatiotemporally resolved polar magneto-optical Kerr effect microscopy. The following results were found: (i) the domain wall moves towards hot regime; (ii) a threshold temperature gradient (5 K/mm), i.e., a minimal temperature gradient required to induce domain wall motion; (iii) a finite domain wall velocity outside of the region with a temperature gradient, slowly decreasing as a function of distance, which is interpreted to result from the penetration of a magnonic current into the constant temperature region; and (iv) a linear dependence of the average domain wall velocity on temperature gradient, beyond a threshold thermal bias. Our observations can be qualitatively explained using a magnonic spin transfer torque mechanism, which suggests the utility of magnonic spin transfer torque for controlling magnetization dynamics.
A Previous Miscarriage and a Previous Successful Pregnancy Have a Different Impact on HLA Antibody Formation during a Subsequent Successful Pregnancy

Inherited paternal HLA antigens from the semi-allogeneic fetus may trigger maternal immune responses during pregnancy, leading to the production of child-specific HLA antibodies. The prevalence of these HLA antibodies increases with the number of successful pregnancies. In the present study, we investigated the effect of a single prior miscarriage on HLA antibody formation during a subsequent successful pregnancy. Women with a successful pregnancy with one or more prior miscarriages (n = 229) and women with a successful pregnancy without a prior miscarriage (n = 58), and their children were HLA typed. HLA antibody analyses were performed in these women to identify whether HLA antibodies were formed against mismatched HLA class-I antigens of the last child. The percentage of immunogenic antigens was significantly lower after a single successful pregnancy that was preceded by a single miscarriage (n = 18 women) compared to a successful pregnancy that was preceded by a first successful pregnancy (n = 62 women). Thus, our data suggest that a previous miscarriage has a different impact on child-specific HLA antibody formation during a subsequent successful pregnancy than a previous successful pregnancy. The lower immunogenicity in these women cannot be explained by reduced numbers of immunogenic B-cell and T-cell epitopes. In conclusion, our observations indicate that increasing gravidity is not related to an increased prevalence of HLA antibodies in a single successful pregnancy that was preceded by a single prior miscarriage.
Esophageal-gastric anastomosis in radical resection of esophageal cancer under thoracoscopy combined with laparoscopy.

OBJECTIVE To determine the feasibility of esophagogastric anastomosis in esophageal cancer radical resection under thoracoscopy combined with laparoscopy in terms of complications and operation time. STUDY DESIGN Experimental study. PLACE AND DURATION OF STUDY Department of Thoracic Surgery, Affiliated with The First Hospital, Suzhou University, from June 2008 to June 2012. METHODOLOGY Clinical data of 136 patients operated for esophageal cancer by radical resection under thoracoscopy combined with laparoscopy was analyzed. Eighty one superior and middle segment esophageal carcinoma patients were operated through right thoracoscope, abdominoscope, and neck incision. The esophagogastric anastomosis was completed in the left side of neck by handiwork. Fifty five inferior segment esophageal carcinoma were operated through right thoracoscope, abdominoscope and the esophagogastric anastomosis was completed with stapler in right thoracic cavity through superior belly incision and diaphragmatic hiatus. RESULTS The operation time and the intra-operative blood loss in patients with intrathoracic mechanical anastomosis was significantly lower than that of cervical anastomosis. Other variables were not significantly different. CONCLUSION The practicability of this method of anastomosis that completed with stapler in right thoracic cavity through superior belly incision and diaphragmatic hiatus had been well confirmed.
Decision-making system for obtaining spectrum availability information in opportunistic networks

Opportunistic networks with cognitive management systems can improve the resource use in future wireless communication networks by forming local clusters that are temporary extensions of the infrastructure and governed by the operator. This paper presents a decision making system that selects the techniques for obtaining spectrum availability information in opportunistic networks. The proposed decision making system selects the most suitable technique(s) from cognitive control channels, databases, and spectrum sensing techniques. Moreover, a novel and simple rule-based expert system is developed to choose the spectrum sensing technique among energy detection, correlation-based detection, and waveform-based detection. The selection is made based on the required probability of detection, operational SNR, available time, and available a priori information. The developed rule-based decision making system is presented in the form of a decision tree to illustrate the dominating paths that influence the decisions. Situations where none of the considered spectrum sensing techniques can meet the given conditions are identified and new approaches are proposed including cooperative sensing and changing of the channel. Results are presented to verify the functioning of the proposed decision making system and to show the relative frequencies of the different selected sensing techniques. Significant improvements can be obtained when the decision making system is used compared to using a single sensing technique instead.
Investigating temporal and melodic aspects of musical imagery

Musical imagery, the mental replay of music in the absence of a perceived stimulus, is a common experience in the everyday lives of both musicians and non-musicians. The present research investigated aspects of the temporal and melodic content of musical imagery in an attempt to better understand factors underlying the genesis, stability, and potential functions of imagined music. Specifically, this research explored how factors such as one’s current state of mood and arousal, level of musical experience, self-reported imagery abilities, and the musical properties of a song itself can influence the generation and stability of a musical image. The first three studies of the thesis were conducted in a laboratory context, in which participants deliberately imagined familiar tunes. The second two studies extended existing quantitative methods to examine the experience of involuntary musical imagery—music that is recalled spontaneously and repetitively within the mind—in more naturalistic contexts. The findings of the research have revealed that factors known to affect time perception, such as physiological arousal, can affect tempo representations within both voluntarily and involuntary musical imagery. The recall of tempo for imagined songs that exist in definitive versions was found to be fairly veridical in both voluntary and involuntary imagery, although temporal veridicality was also influenced by motor engagement with the imagery, a participant’s musical background, and the original tempo of a song stimulus itself. Additionally, the occurrence of an involuntarily generated musical image was predicted by both extra-musical factors, such as song popularity, as well as intra-musical features related to a song’s melodic contour and tempo. The results of this research suggest several parallels between voluntarily and involuntarily generated musical imagery and contribute a variety of novel findings regarding features underlying the genesis and possible functions of musical imagery.
Childlessness and Support Networks in Later Life

Childlessness is an increasingly common condition in many European societies. The consequences that this demographic phenomenon might have on welfare systems—and long-term care policies in particular—are widespread. This is particularly the case for the familistic welfare states of Southern Europe. Using data from the 2003 Italian GGS, the article explores the relation between the absence of children and support received in later life. Overall, the results support the idea that in Italy elderly nonparents, compared with those who have children, do not face significantly large support deficits in terms of the likelihood of receiving support. However, it is shown that they are likely to miss those forms of support that are most needed in the case of bad health. Next, the childless are more likely to be helped by nonrelatives and not-for-profit organizations and to a lesser extent by the welfare system.
Parenting style risk and protective factor of the bullying phenomenon: Three studies in Andalusian teenagers

The present research was conducted to explore the relationship between bullying and parenting styles in an incidental sample of 626 high school students (49.7% girls). The information was collected by means of a self-report questionnaire that contained two instruments: "European Bullying Intervention Project Questionnaire" and "Scale for the assessment of the parenting styles of mothers and fathers of adolescents. " The results show statistically significant differences in the perception of parenting styles between the students involved and not involved in bullying and between the different kinds of involvement. Different dimensions of parenting styles are also categorized as being risk or protective factors of bullying involvement. In agreement with the previous research, we have specifically found that perception of parenting styles (especially behavioral control and affection and communication) is significantly related to bullying involvement, especially regarding the role of aggressor.
The Dual-Specificity Phosphatase CDC14B Bundles and Stabilizes Microtubules

ABSTRACT The Cdc14 dual-specificity phosphatases regulate key events in the eukaryotic cell cycle. However, little is known about the function of mammalian CDC14B family members. Here, we demonstrate that subcellular localization of CDC14B protein is cell cycle regulated. CDC14B can bind, bundle, and stabilize microtubules in vitro independently of its catalytic activity. Basic amino acid residues within the nucleolar targeting domain are important for both retaining CDC14B in the nucleolus and preventing microtubule bundling. Overexpression of CDC14B resulted in the formation of cytoplasmic CDC14B and microtubule bundles in interphase cells. These microtubule bundles were resistant to microtubule depolymerization reagents and enriched in acetylated α-tubulin. Expression of cytoplasmic forms of CDC14B impaired microtubule nucleation from the microtubule organization center. CDC14B is thus a novel microtubule-bundling and -stabilizing protein, whose regulated subcellular localization may help modulate spindle and microtubule dynamics in mitosis.
eHealth literacy research—Quo vadis?

ABSTRACT The concept of electronic health (eHealth) literacy evolved from the social and information sciences and describes competencies necessary to use electronic health services. As it is a rather new topic, and as there is no current overview of the state of the art in research, it is not possible to identify research gaps. Therefore, the objective of this viewpoint article is to increase knowledge on the current state of the art of research in eHealth literacy and to identify gaps in scientific research which should be focused on by the research community in the future. The article provides a current viewpoint of the concept of eHealth literacy and related research. Gaps can be found in terms of a missing “gold standard” regarding both the definition and the measurement of eHealth literacy. Furthermore, there is a need for identifying the implications on eHealth developers, which evolve from the measurement of eHealth literacy in eHealth users. Finally, a stronger inclusion of health professionals, both in the evolving concept and in the measurement of eHealth literacy, is needed in the future.
An Alzheimer’s Disease Genetic Risk Score Predicts Longitudinal Thinning of Hippocampal Complex Subregions in Healthy Older Adults

Abstract Variants at 21 genetic loci have been associated with an increased risk for Alzheimer’s disease (AD). An important unresolved question is whether multiple genetic risk factors can be combined to increase the power to detect changes in neuroimaging biomarkers for AD. We acquired high-resolution structural images of the hippocampus in 66 healthy, older human subjects. For 45 of these subjects, longitudinal 2-year follow-up data were also available. We calculated an additive AD genetic risk score for each participant and contrasted this with a weighted risk score (WRS) approach. Each score included APOE (apolipoprotein E), CLU (clusterin), PICALM (phosphatidylinositol binding clathrin assembly protein), and family history of AD. Both unweighted risk score (URS) and WRS correlated strongly with the percentage change in thickness across the whole hippocampal complex (URS: r = −0.40; p = 0.003; WRS: r = −0.25, p = 0.048), driven by a strong relationship to entorhinal cortex thinning (URS: r = −0.35; p = 0.009; WRS: r = −0.35, p = 0.009). By contrast, at baseline the risk scores showed no relationship to thickness in any hippocampal complex subregion. These results provide compelling evidence that polygenic AD risk scores may be especially sensitive to structural change over time in regions affected early in AD, like the hippocampus and adjacent entorhinal cortex. This work also supports the paradigm of studying genetic risk for disease in healthy volunteers. Together, these findings will inform clinical trial design by supporting the idea that genetic prescreening in healthy control subjects can be useful to maximize the ability to detect an effect on a longitudinal neuroimaging endpoint, like hippocampal complex cortical thickness.
Unraveling the temperature dependent elastic properties of Stone-Wales defect induced single-walled carbon nanotube

Elastic properties of a material dictate how much it will compress under extrinsic stress and determine the net stiffness of a material. In the present study, employing molecular dynamics simulation, calculation of the Young's modulus and its relation with elasticity of the material has been performed at different temperature ranges varying from 4oC (277 K) to 2227oC (2500 K). Metallic SWCNT (5, 5) and semiconductor SWCNT (7, 0) are selected as our experimental material. Gradual increase in temperature reduces rigidity and as well as decreases elasticity of the pristine nanotubes as evident from the gradual decrease in the Young's modulus value. But Stone-Wales defect induced SWCNT retains the rigidity of the nanotubes even at higher temperature as evident from higher Young's modulus value. Understanding the stress-strain relation at different temperature ranges for SWCNT would help us in exploring its mechanical properties and in turn designing devices of ultra-high stiffness at higher temperature, finding its applications from aerospace to medical diagnostics.
A nuclear magnetic resonance study of the interaction between vanomycin and acetyl-D-alanyl-D-alanine in aqueous solution.

The association between vancomycin and acetyl-D-alanyl-D-alanine has been studied by nuclear magnetic resonance spectroscopy. The proton resonances of the three methyl groups in the peptide are all shifted upfield in the complex, probably because the methyl groups are bound in the proximity of aromatic rings in vancomycin. An analysis of binding as a function of pH showed that while the most stable complex is formed between the peptide anion and the vancomycin cation, weaker complexes are formed between uncharged peptide and vancomycin cation and between peptide anion and uncharged vancomycin. The interacting cationic group in vancomycin was identified as the NH 2 -terminal N -methylleucine. The peptide proton chemical shifts are unaffected by temperature, but the acetyl shift is decreased at high pH by ionization of the N -methylleucine or vancosamine. In aglucovancomycin, the binding constant is weaker and all the chemical shifts in the bound complex are reduced.
Framework implementation based on grid of smartcards to authenticate users and virtual machines

The Security for the Future Networks (SecFuNet) project proposes to integrate the secure microcontrollers in order to introduce, among its many services, authentication and authorization functions for Cloud and virtual environments. One of the main goals of SecFuNet is to develop a secure infrastructure for virtualized environments and Clouds in order to provide strong isolation among virtual infrastructures, and guarantee that one virtual machine (VM) should not interfere with others. The goal of this paper is to describe the implementation and the experimentation of the solution for identifying users and nodes in the SecFuNet architecture. In this implementation, we also employ low-cost smartcards. Only authorized users are allowed to create or instantiate virtual environments. Thus, users and hypervisors are equipped with secure elements, used to open TLS secure channels with strong mutual authentication.
Antecedents of Feedback Seeking Behaviors: Review of the Feedback Seeking Literature

Receiving feedback once or twice a year is not enough for employees. Employees do not wait for annual performance-reviews as supposed in many years; they actively search for information to decide what goals to pursue, learn what to do for goal attainment, and determine whether goals are achieved. This study aims to address relatively neglected area of feedback literature, which is feedback seeking. The study reviews the literature to understand what instigates feedback seeking behaviors. Firstly, motives derived from organizational behavior theory (i.e., desire for useful information, desire to protect ego; desire to control image) and motives derived from self-theory (i.e., self-verification, enhancement, improvement, assessment) are explained. Secondly, individual and situational factors that activate these motives are discussed. Finally, suggestions are made to both researchers, who want to work about feedback seeking and practitioners who want to make employees more willing to seek feedback.