70 research outputs found
Adaptive Content Control for Communication amongst Cooperative Automated Vehicles
Cooperative automated vehicles exchange information to assist each other in
creating a more precise and extended view of their surroundings, with the aim
of improving automated-driving decisions. This paper addresses the need for
scalable communication among these vehicles. To this end, a general
communication framework is proposed through which automated cars exchange
information derived from multi-resolution maps created using their local
sensing modalities. This method can extend the region visible to a car beyond
the area directly sensed by its own sensors. An adaptive, probabilistic,
distance-dependent strategy is proposed that controls the content of the
messages exchanged among vehicles based on performance measures associated with
the load on the communication channel.Comment: 7 Pages, 10 Figures, Sixth International Symposium on Wireless
Vehicular Communications (WiVEC'2014
Understanding the Use of Fauxtography on Social Media
Despite the influence that image-based communication has on online discourse, the role played by images in disinformation is still not well understood. In this paper, we present the first large-scale study of fauxtography, analyzing the use of manipulated or misleading images in news discussion on online communities. First, we develop a computational pipeline geared to detect fauxtography, and identify over 61k instances of fauxtography discussed on Twitter, 4chan, and Reddit. Then, we study how posting fauxtography affects engagement of posts on social media, finding that posts containing it receive more interactions in the form of re-shares, likes, and comments. Finally, we show that fauxtography images are often turned into memes by Web communities. Our findings show that effective mitigation against disinformation need to take images into account, and highlight a number of challenges in dealing with image-based disinformation
Differences in and correlates of sexual function in infertile women with and without polycystic ovary syndrome
Background: The aim of this study was to examine sexual function and its correlates among infertile women with polycystic ovary syndrome (PCOS) in comparison with their non-PCOS counterparts. Materials and Methods: In this case-control study, 209 infertile women (116 PCOS and 93 non-PCOS) from Tehran, Iran, were evaluated in February and March 2018. Female sexual function index (FSFI), hormonal status, and documented reports of hyperandrogenic manifestations of the patients were investigated. Results: The mean age of the patients was 32.00 ± 5.00 years old. Eighty-four (40.2) patients including 42.2 of the PCOS patients and 37.6 of the non-PCOS cases (P>0.05), were suspected of female sexual dysfunction (FSD). The most impaired functions in both groups were desire and arousal. Sexual function was not significantly different between the groups. However, PCOS women had more orgasm problems and acne worsened their sexual function. Total FSFI was positively associated with prolactin level but negatively associated with central obesity in the non-PCOS group; it was negatively correlated with marital duration in the PCOS group. Luteinizing hormone (LH) and pain, prolactin level and lubrication, and central obesity and arousal were correlated in the non-PCOS women. Prolactin level and orgasm, marital duration and arousal, and marital duration and the total FSFI were correlated in the PCOS women. Conclusion: Sexual function was similarly low in infertile PCOS and non-PCOS women. However, orgasm problems and the negative effect of acne varied between the two groups. Further investigations may target how hormonal profile may affect sexual function. Practitioners should scrutinize the specific impaired sexual domains and their correlated conditions in PCOS women, notably orgasm, acne, and prolactin level. Interventions should be well tailored based on particular needs of infertile PCOS women. © 2021, Royan Institute (ACECR). All rights reserved
IR spectroscopic characterization of the co-adsorption of CO2 and H2 onto cationic Cun+ clusters
NWOTheoretical Chemistr
Evaluation of using short barrel DHS in treatment of intertrochanteric fractures
Cut out or extrusion of the lag screw from the superior aspect of head and neck of the femur is one of the most common and devastating complications of the surgery of the intertrochanteric fractures with DHS. The exact cause of this complications is unknown, but it seems to be related to osteopenia, inappropriate position of lag screw inside head of the femur and inability of DHS to slide inside the barrel, which is the most ignored risk factor. We used short barrel Dynamic Hip Screw (DHS) for fixation of the intertrochanteric fractures in Dimon and Hughston procedure in 16 patients with unstable fracture, from may to August 2000. The only patient suffered from cut out is the one with static position of DHS in the center of the head. The other complications were delayed union in one, disingagement of the lag screw and side plate despite using compression screw, and one case of significant limb length discrepancy 6 months after surgery, mild limbing was the rule and the average of harris scores was 76. We think that, it is possible to reduce the rate of cut out with choosing short barrel DHS instead of the standard one, while using short length lag screw
The factor structure of the spiritual well-being scale in veterans experiencing chemical weapon exposure
This is the author accepted manuscript. The final version is available from Springer Verlag via the DOI in this record.This study aimed to determine the factor structure of the spiritual well-being among a sample of the Iranian veterans. In this methodological research, 211 male veterans of Iran–Iraq warfare completed the Paloutzian and Ellison spiritual well-being scale. Maximum likelihood (ML) with oblique rotation was used to assess domain structure of the spiritual well-being. The construct validity of the scale was assessed using confirmatory factor analysis (CFA), convergent validity, and discriminant validity. Reliability was evaluated with Cronbach’s alpha, Theta (θ), and McDonald Omega (Ω) coefficients, intra-class correlation coefficient (ICC), and construct reliability (CR). Results of ML and CFA suggested three factors which were labeled “relationship with God,” “belief in fate and destiny,” and “life optimism.” The ICC, coefficients of the internal consistency, and CR were >.7 for the factors of the scale. Convergent validity and discriminant validity did not fulfill the requirements. The Persian version of spiritual well-being scale demonstrated suitable validity and reliability among the veterans of Iran–Iraq warfare
- …