Miracle-dz/UniFAR-FTUs huggingface dataset:
Narrowband interference in pilot symbol assisted OFDM systems

The effect of narrowband interference on pilot symbol assisted detection and synchronization is discussed. It is shown both analytically and by computer simulation that pilot symbol detectors are particularly susceptible to narrowband interference. It is shown also that pilot symbol assisted frequency offset estimation is detrimentally affected by narrowband interference. The normalized least mean squares (N-LMS) adaptive noise cancellation algorithm, with only a small number of filter taps, is shown to perform well in suppressing narrowband interference in pilot symbol detectors. The combination of two-stage detection and the N-LMS algorithm is shown to be effective in producing interference-tolerant pilot symbol detection in OFDM systems.
Knowledge sharing behaviour and its predictors

– This paper aims to evaluate the influence of different factors on knowledge donation and collection. The examined factors are among those determinants which comprise different aspects of knowledge sharing behaviour in an organisational context. , – Based on the widely accepted theory of planned behaviour (TPB), we tried to develop a comprehensive model. The model covered different individual and organisational factors. Responses to a total of 502 questionnaires were considered. Structural equation modelling was then used to test the research model and hypotheses. , – This research evaluated the influence of a series of potential factors on knowledge sharing behaviour. While perceived self‐efficacy and anticipated reciprocal relationships had a positive impact on attitude toward knowledge sharing, expected extrinsic rewards did not show a significant relationship with this variable. Organisational climate had a positive impact on subjective norms about knowledge sharing. In addition, the level of information and communication technology usage reflected a positive effect on knowledge sharing behaviour. Finally, significant relationships were found between the TPB elements. , – This paper has tried to provide a comprehensive understanding about knowledge sharing facilitators in the oil industry. Since there was a lack of such research in an Iranian context, this paper can provide theoretical basis for future researches as well as practical implications for managers and practitioners.
Drivers and Bottlenecks in the Adoption of Augmented Reality Applications

In the last decade, Augmented Reality (AR) has been one of the emerging technologies that have been in the centre of attention among academics and business practitioners. Despite the numerous studies which have demonstrated the multitude of benefits derived from AR applications, the technology has not reached yet its full potential due to various bottlenecks which are preventing it from becoming the mainstream technology that many have anticipated. In this paper, we first present briefly the history of AR followed by the evolution of related software algorithms and hardware devices. The main contribution of this paper is the overview of the drivers and challenges related to the adoption and diffusion of AR across five major application domains; (a) industry and military, (b) training and education, (c) travel and tourism, (d) medicine and health care and (e) retail and marketing. Such overview facilitates especially a cross-domain comparison, which here enabled us to identify a list of five drivers and five bottlenecks in the adoption of the current AR technology.
Tensile bond strength of dentin-resinous system interfaces conditioned with Er:YAG laser irradiation.

OBJECTIVE The aim of this in vitro study was to assess tensile bond strength of dentin-resinous system interfaces conditioned with Er:YAG laser irradiation. BACKGROUND DATA There are different results reported in the literature which relate to laser Er:YAG effects on dentin surface as a pretreatment during adhesives procedures. MATERIALS AND METHODS Forty-two surfaces of human dentin from third upper molar were used after being extracted and kept in the refrigerator in 0.5% chloramines aqueous solution and then divided into three experimental groups and three control groups. The chosen restorative systems were Alert (Jeneric/Penton), Prodigy (Kerr Co.), and Z-100 (3M Co.), with correspondent dental adhesives Bond 1, Optibond Solo, and Single Bond, respectively. To conduct tensile tests, a special system of pairs of rods aligned in a specific apparatus was used, in accordance with ISO/TR 11405 standard (1994). RESULTS By means of statistical analysis, the Kruskal Wallis test, it was noticed that group IE (laser + acid + Alert), 18.89 MPa, differed considerably from group IC (acid + Alert), 8.03 MPa (p < 0.10), but did not differ from the other groups. Group IIC (acid + Prodigy), 19.88 MPa, differed from group IIE (laser + acid + Prodigy), 12.57 MPa (p < 0.05), but did not differ from groups IIIE (laser + acid + Z-100), 14.11 MPa, and IIIC (acid + Z-100), 19.58 MPa. Group IIIE did not differ statistically from group IIIC. CONCLUSION It was concluded that previous Er:YAG laser treatment on the dentinal structure only improved the tensile bond resistance of the Alert restorative system.
Acute pancreatitis as rare complication of the right radical transperitoneal open nephrectomy

Radical open nephrectomy is considered the standard treatment for kidney tumors or masses greater than 10 cm. We present a rare case of acute pancreatitis that occurred after right radical transperitoneal nephrectomy, which was treated by nonsurgical conservative interventions. The incidence of acute pancreatitis after renal surgery is not known in the literature. A 56-year-old man developed acute pancreatitis postoperatively after radical transperitoneal nephrectomy. An initial CT scan showed an enlarged pancreas with hypodense, heterogeneous consistency and with peripancreatic, perihepatic, mesenteric, and pelvic fluid collections. This complication was managed conservatively.
Nonlinear Dose-Response Relationship in the Immune System following Exposure to Ionizing Radiation: Mechanisms and Implications

The health effects of low-dose radiation (LDR) have been the concern of the academic spheres, regulatory bodies, governments, and the public. Among these effects, the most important is carcinogenesis. In view of the importance of immune surveillance in cancer control, the dose-response relationship of the changes in different cell types of the immune system after whole-body irradiation is analyzed on the basis of systemic data from the author's laboratory in combination with recent reports in the literature. For T lymphocytes J- or inverted J-shaped curves are usually demonstrated after irradiation, while for macrophages dose-response curves of chiefly stimulation with irregular patterns are often observed. The intercellular reactions between the antigen presenting cell (APC) and T lymphocyte (TLC) in the immunologic synapse via expression of surface molecules and secretion of cytokines by the two cell types after different doses of radiation are illustrated. The different pathways of signal transduction thus facilitated in the T lymphocyte by different doses of radiation are analyzed to explain the mechanism of the phenomenon of low-dose stimulation and high-dose suppression of immunity. Experimental and clinical data are cited to show that LDR retards tumor growth, reduces metastasis, increases the efficacy of conventional radiotherapy and chemotherapy as well as alleviates the suppression of immunity due to tumor burden. The incidence of thymic lymphoma after high-dose radiation is lowered by preexposure to low-dose radiation, and its mechanism is supposed to be related to the stimulation of anticancer immunity induced by low-dose radiation. Recent reports on lowering of standardized cancer mortality rate and all cause death rate of cohorts occupationally exposed to low-dose radiation from the US, UK, and Canada are cited.
Distribution of CIAPIN1 in Normal Fetal and Adult Human Tissues

CIAPIN1, a newly identified antiapoptotic molecule that plays an essential role in mouse definitive hematopoiesis, is considered a downstream effector of the receptor tyrosine kinase-Ras signaling pathway. Our previous studies have indicated that CIAPIN1 is involved in the development of multidrug resistance (MDR) in gastric cancer cells. However, the mechanism of CIAPIN1-mediated antiapoptosis and MDR has not been fully elucidated. To reveal the possible physiological role of CIAPIN1, we examined the expression and distribution of CIAPIN1 in fetal and adult human tissues using immunohistochemistry. We found that CIAPIN1 was ubiquitously distributed in fetal and adult tissues, and was localized in both the cytoplasm and the nucleus. The expression patterns of CIAPIN1 were similar in fetal and adult tissues, and was correlated with the previously described expression pattern of p21ras. These observations suggest that CIAPIN1 expression appears to be involved in cell differentiation, and that it might exert universal and possibly important physiological functions under the regulation of Ras in humans.
Exponential stability analysis of linear systems with multiple successive delay components

A general class of linear systems with multiple successive delay components is considered in this article. The delays are assumed to vary in intervals, and delay-dependent exponential stability conditions are derived in terms of linear matrix inequalities. To reduce conservativeness, a new Lyapunov–Krasovskii functional is designed to contain more complete state information, so that a derivation procedure with time-varying delays treated as uncertain parameters can be adopted. Usage of slack variables and inequalities are refrained as much as possible when bounds on the Lyapunov derivative are sought. The stability criteria are tested by two popular numerical examples, with less conservative results obtained in all the checked cases. Besides, a practical application of the derived conditions is illustrated.
Effect of peripheral arterial disease in patients undergoing percutaneous coronary intervention with intracoronary stents.

OBJECTIVE To compare the short-term and long-term outcomes of patients with coronary artery disease and peripheral arterial disease (PAD) who underwent intracoronary (IC) stent Implantation during percutaneous coronary intervention (PCI) with the outcomes of patients with isolated coronary artery disease but without PAD who underwent IC stent implantation. PATIENTS AND METHODS We analyzed the outcomes of 7696 patients who underwent IC stent implantation during PCI at the Mayo Clinic in Rochester, Minn, between January 1996 and December 2002. Outcomes of 6299 patients (82%) with Isolated coronary artery disease and without PAD who underwent IC stent implantation (group 1) were compared with outcomes of 1397 patients (18%) with coronary artery disease and PAD (group 2) who underwent PCI with IC stent implantation. RESULTS Patients in group 2 were older (71.1+/-10.2 years vs 65.0+/-12.0 years; P<.001) and had a higher prevalence of hypertension (79% vs 61%; P<.001), diabetes mellitus (33% vs 20%; P<.001), hyperlipidemia (76% vs 70%; P<.001), and history of smoking (70% vs 63%; P<.001) compared with group 1. Prevalence of multivessel disease was higher in group 2 (79% vs 68%; P<.001). Procedural success was significantly lower In group 2 (95% vs 97%; P<.001). In-hospital complications were higher in group 2: death (3% vs 1%; P<.001), any myocardial Infarction (MI) (8% vs 5%; P<.001), death/MI/coronary artery bypass grafting (CABG)/target vessel revascularization (11% vs 7%; P<.001), and blood loss requiring transfusion (11% vs 5.8%; P<.001). After adjustment for other risk factors, the odds ratio for in-hospital death was 1.84 (95% confidence interval [CI], 1.16-2.90; P=.009), and for death/MI/CABG/target vessel revascularization, the odds ratio was 1.25 (95% CI, 1.00-1.55; P=.048) in patients with PAD treated with IC stents. Median follow-up was 3.1 years. Six-month, 1-year, and 2-year Kaplan-Meier estimates of survival free of death/MI/CABG/target vessel revascularization were 84%, 77%, and 69%, respectively, for group 2 and were significantly worse compared with group 1 (89%, 85%, and 80%, respectively; P<.001). This effect remained after adjustment for other risk factors (hazard ratio, 1.36; 95% CI, 1.22-1.51). CONCLUSIONS Compared with patients who had isolated coronary artery disease but no PAD, patients with coronary artery disease and PAD had lower procedural success and higher in-hospital major cardiovascular complications, including higher blood loss requiring transfusion, after PCI with stent Implantation. On follow-up, the short-term and long-term outcomes of patients with PAD were worse, with higher mortality, MI, and need for repeated target vessel revascularization.
Interferon-&ggr; release assays for the diagnosis of latent Mycobacterium tuberculosis infection: a systematic review and meta-analysis

We conducted a systematic review and meta-analysis to compare the accuracy of the QuantiFERON-TB® Gold In-Tube (QFT-G-IT) and the T-SPOT®. TB assays with the tuberculin skin test (TST) for the diagnosis of latent Mycobacterium tuberculosis infection (LTBI). The Medline, Embase and Cochrane databases were explored for relevant articles in November 2009. Specificities, and negative (NPV) and positive (PPV) predictive values of interferon-&ggr; release assays (IGRAs) and the TST, and the exposure gradient influences on test results among bacille Calmette–Guérin (BCG) vaccinees were evaluated. Specificity of IGRAs varied 98–100%. In immunocompetent adults, NPV for progression to tuberculosis within 2 yrs were 97.8% for T-SPOT®. TB and 99.8% for QFT-G-IT. When test performance of an immunodiagnostic test was not restricted to prior positivity of another test, progression rates to tuberculosis among IGRA-positive individuals followed for 19–24 months varied 8–15%, exceeding those reported for the TST (2–3%). In multivariate analyses, the odd ratios for TST positivity following BCG vaccination varied 3–25, whereas IGRA results remained uninfluenced and IGRA positivity was clearly associated with exposure to contagious tuberculosis cases. IGRAs may have a relative advantage over the TST in detecting LTBI and allow the exclusion of M. tuberculosis infection with higher reliability.
Impact of Imperfect Channel Estimation on SC-FDE

Imperfect channel estimation can have a severe impact on the performance of coherent detection systems. In this paper we study the effect of imperfect channel knowledge in the performance of SC-FDE (Single Carrier with Frequency Domain Equalization). We propose a low complexity linear FDE which incorporates knowledge of the channel estimation error variance and derive analytical BER expressions. It is shown that its performance becomes more robust in the presence of strong channel estimation error components compared with a conventional FDE receiver. We also compare the degradation caused by imperfect channel estimation in SC-FDE and in OFDM schemes (Orthogonal Frequency Division Multiplexing) and show that the channel estimation requirements for SC-FDE are higher than for OFDM.
A Small-Scale Randomized Efficacy Trial of the Identity Project: Promoting Adolescents' Ethnic-Racial Identity Exploration and Resolution.

Adolescents' ethnic-racial identity (ERI) formation represents an important developmental process that is associated with adjustment. The Identity Project intervention, grounded in developmental theory, was designed to engage adolescents in the ERI processes of exploration and resolution. The current small-scale efficacy trial involved an ethnic-racially diverse sample of adolescents (N = 215; Mage = 15.02, SD = .68) from eight classrooms that were randomly assigned by classroom to the intervention or attention control group. Differences between conditions in ERI exploration at Time 2 were consistent with desired intervention effects; furthermore, higher levels of ERI exploration at Time 2 predicted increases in ERI resolution at Time 3 only for youth in the treatment condition. Findings provide preliminary evidence of program efficacy.
Immunolocalization of N‐CAM in the heart of the early developing rat embryo

Background: Neural cell adhesion molecule (N‐CAM) is important in the migration of neural crest cells and is expressed in the developing heart. The pattern of expression of N‐CAM in the heart of early rat embryos was investigated to shed light on the potential role of N‐CAM in cardiac neural crest cell migration.
Rapid Divergent Evolution of Genitalia Theory and Data Updated

The evolutionary forces responsible for the evolution of animal genitalia have a long history of controversy. Why the special interest in genitalia? In addition to the intrinsic interest of organs that are so intimately related to reproduction and fi tness, it is because of a classic property of genital evolution: the morphological forms of genitalia are often speciesspecifi c, and these forms are often more divergent among closely related species than other traits such as legs, antennae, eyes, etc. In addition, male genitalia often show exuberantly complex forms that seem inexplicable in terms of their sperm transfer function (fi gure 4.1). This trend toward greater diversity in genitalia than in other structures occurs in at least some subgroups of all major taxonomic taxa with internal fertilization (reviewed in Eberhard 1985). This widespread, relatively consistent usefulness of genital morphology in distinguishing species can be translated into a statement about evolutionary processes (unless the data are severely biased—see below): genitalia tend to show an evolutionary pattern of sustained, relatively rapid and divergent morphological change (Eberhard 1985). “Rapid” in this sense is in relative terms, with respect to changes in other traits. Genitalia are often much more elaborate than seems necessary for the simple function of gamete transfer to the female. What could be responsible for such an evolutionary pattern? The objective of this chapter is to review new data and ideas that have appeared since my 1985 book that can help answer this question. As a result of the sustained exploitation by taxonomists of genital morphology to discriminate closely related species, we surely know more about the evolution of species-level divergence in the morphology of genitalia than any other set of structures in the animal kingdom. For more than 100 years this huge mass of data on genitalia accumulated in nearly complete isolation from the study of sexual selection. The isolation was explicit in the original description of sexual selection by Darwin (1871), in which he specifi cally excluded genitalia from his discussion of sexual selection: “There are, however, other sexual differences quite unconnected with the primary reproductive organs, and it is with these that we are especially concerned” (p. 567). It ended abruptly, with Waage’s path breaking paper (1979) demonstrating that male genitalia are used in sperm competition in damselfl ies. During this long period of isolation the study of genitalia was the nearly exclusive province of taxonomists, and was largely descriptive. For their part, students of sexual selection did not even begin to recognize the possibility of post-copulatory competition among males until another crucial paper, that of Parker (1970) on
Title : Deletion of murine IQGAP 1 results in increased mTOR activation and blunted ketogenic response

IQ motif-containing GTPase Activating Protein 1 (IQGAP1) is a ubiquitously expressed scaffolding protein that integrates signaling from multiple cellular processes including motility, adhesion, and proliferation. Here, we show that IQGAP1 is induced in the liver upon fasting and can also regulate β-oxidation and ketone body synthesis. Utilizing ketogenic diet and pharmacologic activation we identified that hepatic PPARα activity is compromised in Iqgap1 mice. Our data show that IQGAP1 interacts with the mechanistic target of rapamycin (mTOR) and IQGAP1 deletion results in enhanced mTOR complex 1 (mTORC1) activation. Conversely, ectopic expression of IQGAP1 in Iqgap1 mice was sufficient to suppress mTORC1 signaling. We also confirmed that modulation of mTORC1 signaling by IQGAP1 is cell autonomous. This increased mTORC1 activation impedes PPARα signaling since mTORC1 inhibition restored a subset of metabolic genes in Iqgap1 mice. Overall, we demonstrate a previously unidentified role for IQGAP1 as an important regulator of mTORC1 activity and long-term ketosis. CC-BY-NC-ND 4.0 International license peer-reviewed) is the author/funder. It is made available under a The copyright holder for this preprint (which was not . http://dx.doi. org/10.1101/182469 doi: bioRxiv preprint first posted online Sep. 11, 2017;
The Impact of Internet Addiction on Life Satisfaction and Life Engagement in Young Adults

This study examined the impact of Internet addiction (IA) on life satisfaction and life engagement in young adults. A total of 210 University students participated in the study. Multivariate regression analysis showed that the model was significant and contributes 8% of the variance in life satisfaction (Adjusted R 2 =.080, p<.001) and 2.8% of the variance in life engagement (Adjusted R 2 =.028, p<.05). Unstandardized regression coefficient (B) indicates that one unit increase in raw score of Internet addiction leads to . 168 unit decrease in raw score of life satisfaction (B=-.168, p<.001) and . 066 unit decrease in raw score of life engagement (B=-.066, p<.05). Means and standard deviations of the scores on IA and its dimensions showed that the most commonly given purposes of Internet are online discussion, adult chatting, online gaming, chatting, cyber affair and watching pornography. Means and standard deviations of the scores on IA and its dimensions across different types of social networking sites further indicate that people who frequently participate in skype, twitter and facebook have relatively higher IA score. Correlations of different aspects of Internet use with major variables indicate significant and positive correlations of Internet use with IA, neglect of duty and virtual fantasies. Implications of the findings for theory, research and practice are discussed.