1,682 research outputs found
EWOM EFFECTS ON FACEBOOK
The rapid growth of Facebook has become an important channel of eWOM. Facebook users can openly illustrate their attitudes toward products to their friends, either by casually clicking a like or deliberately writing a comment on advertisements. This study explored how friendsā involvement in advertisements and tie strength affected Facebook usersā product attitudes, intentions to purchase, and intentions to click. Moreover, we investigated how product type moderates fWOM (eWOM on Facebook) effects. This study recruited 384 respondents to participate in a 2 (friendsā involvement in advertisements: high/low, between-subject) Ć 2 (tie strength: strong/weak, between-subject) Ć 2 (product type: search/experience, within-subject) experimental design. The results showed that friendsā involvement in advertisements positively influenced usersā intentions to click. Tie strength of Facebook friends also positively affected usersā product attitudes, intentions to purchase, and intentions to click. Lastly, product type moderated the effects of tie strength of Facebook friends on usersā product attitudes and intentions to click; however, it did not moderate the effects of friendsā involvement in advertisements on their attitudes and intentions
Incorporating Ultrasound Tongue Images for Audio-Visual Speech Enhancement through Knowledge Distillation
Audio-visual speech enhancement (AV-SE) aims to enhance degraded speech along
with extra visual information such as lip videos, and has been shown to be more
effective than audio-only speech enhancement. This paper proposes further
incorporating ultrasound tongue images to improve lip-based AV-SE systems'
performance. Knowledge distillation is employed at the training stage to
address the challenge of acquiring ultrasound tongue images during inference,
enabling an audio-lip speech enhancement student model to learn from a
pre-trained audio-lip-tongue speech enhancement teacher model. Experimental
results demonstrate significant improvements in the quality and intelligibility
of the speech enhanced by the proposed method compared to the traditional
audio-lip speech enhancement baselines. Further analysis using phone error
rates (PER) of automatic speech recognition (ASR) shows that palatal and velar
consonants benefit most from the introduction of ultrasound tongue images.Comment: To be published in InterSpeech 202
Incorporating Ultrasound Tongue Images for Audio-Visual Speech Enhancement
Audio-visual speech enhancement (AV-SE) aims to enhance degraded speech along
with extra visual information such as lip videos, and has been shown to be more
effective than audio-only speech enhancement. This paper proposes the
incorporation of ultrasound tongue images to improve the performance of
lip-based AV-SE systems further. To address the challenge of acquiring
ultrasound tongue images during inference, we first propose to employ knowledge
distillation during training to investigate the feasibility of leveraging
tongue-related information without directly inputting ultrasound tongue images.
Specifically, we guide an audio-lip speech enhancement student model to learn
from a pre-trained audio-lip-tongue speech enhancement teacher model, thus
transferring tongue-related knowledge. To better model the alignment between
the lip and tongue modalities, we further propose the introduction of a
lip-tongue key-value memory network into the AV-SE model. This network enables
the retrieval of tongue features based on readily available lip features,
thereby assisting the subsequent speech enhancement task. Experimental results
demonstrate that both methods significantly improve the quality and
intelligibility of the enhanced speech compared to traditional lip-based AV-SE
baselines. Moreover, both proposed methods exhibit strong generalization
performance on unseen speakers and in the presence of unseen noises.
Furthermore, phone error rate (PER) analysis of automatic speech recognition
(ASR) reveals that while all phonemes benefit from introducing ultrasound
tongue images, palatal and velar consonants benefit most.Comment: Submmited to IEEE/ACM Transactions on Audio, Speech and Language
Processing. arXiv admin note: text overlap with arXiv:2305.1493
Participation and Environmental Factors of Children with Physical Disabilities in Taiwan
Participation is a critical health and education outcome of children and can be optimized by environmental supports. Children with physical disabilities often experience participation restriction and environmental barriers. Research is limited in describing participation in everyday activities of children with physical disabilities and identifying environmental barriers faced by those children in Taiwan. This chapter presents data of 94 children with physical disabilities aged 2ā6 years and their families in Taiwan. Children with physical disabilities were primarily children with cerebral palsy (36%) and developmental (motor) delay (34%). Parents completed the Chinese version of Assessment of Preschool Childrenās Participation (APCP-C) and the Chinese version of the Child and Adolescent Scale of Environment (CASE-C) by structured interview to assess pattern of participation and impact of environment factors to their childrenās daily life. Participation of children with physical disabilities differed on the basis of level of severity, but not age and sex. Parents reported increased impacts of problems with the quality and availability of family and community resources than problems with assistance/attitude supports and physical design and access. The findings provide a profile of childrenās pattern of participation and environmental barriers that impact participation in Taiwan
PSYCHOSOCIAL LIVE EXPERIENCES OF NURSES CARING FOR COVID-19 PATIENTS : A SYSTEMATIC REVIEW
As the āgatekeepersā of the health care system, nurses at the forefront of the COVID19 pandemic played important roles in caring for all types of patients and had the most contact with
COVID-19 infected patients. This systematic review aimed to evaluate the psychosocial experiences of the nurses providing care for COVID-19 patient
HHP1 is involved in osmotic stress sensitivity in Arabidopsis
HHP1 (heptahelical protein 1), a protein with a predicted seven transmembrane domain structure homologous to adiponectin receptors (AdipoRs) and membrane progestin receptors (mPRs), has been characterized. Expression of HHP1 was increased in response to abscisic acid (ABA) and salt/osmotic stress as shown by quantitative real-time PCR and HHP1 promoter-controlled GUS activity. The HHP1 T-DNA insertion mutant (hhp1-1) showed a higher sensitivity to ABA and osmotic stress than the wild-type (WT), as revealed by the germination rate and post-germination growth rate. The induced expression of stress-responsive genes (RD29A, RD29B, ADH1, KIN1, COR15A, and COR47) was more sensitive to exogenous ABA and osmotic stress in hhp1-1 than in the WT. The hypersensitivity in the hhp1-1 mutant was reversed in the complementation mutant of HHP1 expressing the HHP1 gene. The data suggest that the mutation of HHP1 renders plants hypersensitive to ABA and osmotic stress and HHP1 might be a negative regulator in ABA and osmotic signalling
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