481 research outputs found
Touching the Future: The Effects of Gesture-Based Interaction on Virtual Product Experience
With the popularity of touchscreen tablets and gesture control devices, the role of touch in online consumer behavior has become increasingly important. This study aims to investigate how sense of touch evoked by various interaction modes (i.e., mouse-driven interaction, touchscreen gesture interaction and mid-air gesture interaction) influences virtual product experience. Drawing on Feelings-as-Information Theory and Cognitive-Affective Framework in virtual product experience, we propose that sense of touch could influence consumer purchase intention by reducing product uncertainty and improving product attachment; furthermore, these effects are contingent on product characteristics, i.e., importance of product haptics and product valence. Accordingly, two lab experiments are designed. Potential theoretical contributions, practical implications as well as future research directions are discussed
Embodied Persuasion: How Holding Your Smartphone Changes Your Product Perception
Online shopping through mobile devices has dramatically increased worldwide. This research investigates the role embodied interactions may play in stimulating virtual product experience in mobile commerce settings. Drawing on research on virtual product experience and embodied cognition, we hypothesize that holding a mobile device in hands (vs. putting the mobile device on the table) is more likely to create an illusion that the products being viewed are actually present in the real world and to stimulate imagery consumption experience, leading to higher purchase intention and choice satisfaction. This effect is more salient for desirable products than for undesirable products. We describe an experiment design for testing the hypotheses, report preliminary data analysis results, and discuss the potential theoretical and practical implications of this study
Addressless: A New Internet Server Model to Prevent Network Scanning
Eliminating unnecessary exposure is a principle of server security. The huge
IPv6 address space enhances security by making scanning infeasible, however,
with recent advances of IPv6 scanning technologies, network scanning is again
threatening server security. In this paper, we propose a new model named
addressless server, which separates the server into an entrance module and a
main service module, and assigns an IPv6 prefix instead of an IPv6 address to
the main service module. The entrance module generates a legitimate IPv6
address under this prefix by encrypting the client address, so that the client
can access the main server on a destination address that is different in each
connection. In this way, the model provides isolation to the main server,
prevents network scanning, and minimizes exposure. Moreover it provides a novel
framework that supports flexible load balancing, high-availability, and other
desirable features. The model is simple and does not require any modification
to the client or the network. We implement a prototype and experiments show
that our model can prevent the main server from being scanned at a slight
performance cost
VoiceFixer: A Unified Framework for High-Fidelity Speech Restoration
Speech restoration aims to remove distortions in speech signals. Prior
methods mainly focus on a single type of distortion, such as speech denoising
or dereverberation. However, speech signals can be degraded by several
different distortions simultaneously in the real world. It is thus important to
extend speech restoration models to deal with multiple distortions. In this
paper, we introduce VoiceFixer, a unified framework for high-fidelity speech
restoration. VoiceFixer restores speech from multiple distortions (e.g., noise,
reverberation, and clipping) and can expand degraded speech (e.g., noisy
speech) with a low bandwidth to 44.1 kHz full-bandwidth high-fidelity speech.
We design VoiceFixer based on (1) an analysis stage that predicts
intermediate-level features from the degraded speech, and (2) a synthesis stage
that generates waveform using a neural vocoder. Both objective and subjective
evaluations show that VoiceFixer is effective on severely degraded speech, such
as real-world historical speech recordings. Samples of VoiceFixer are available
at https://haoheliu.github.io/voicefixer.Comment: Submitted to INTERSPEECH 202
Role of Selective Histone Deacetylase 6 Inhibitor ACY-1215 in Cancer and Other Human Diseases
The deacetylation process regulated by histone deacetylases (HDACs) plays an important role in human health and diseases. HDAC6 belongs to the Class IIb of HDACs family, which mainly modifies non-histone proteins located in the cytoplasm. HDAC6 plays a key role in tumors, neurological diseases, and inflammatory diseases. Therefore, targeting HDAC6 has become a promising treatment strategy in recent years. ACY-1215 is the first orally available highly selective HDAC6 inhibitor, and its efficacy and therapeutic effects are being continuously verified. This review summarizes the research progress of ACY-1215 in cancer and other human diseases, as well as the underlying mechanism, in order to guide the future clinical trials of ACY-1215 and more in-depth mechanism researches
The intestinal γδ T cells: functions in the gut and in the distant organs
Located in the frontline against the largest population of microbiota, the intestinal mucosa of mammals has evolved to become an effective immune system. γδ T cells, a unique T cell subpopulation, are rare in circulation blood and lymphoid tissues, but rich in the intestinal mucosa, particularly in the epithelium. Via rapid production of cytokines and growth factors, intestinal γδ T cells are key contributors to epithelial homeostasis and immune surveillance of infection. Intriguingly, recent studies have revealed that the intestinal γδ T cells may play novel exciting functions ranging from epithelial plasticity and remodeling in response to carbohydrate diets to the recovery of ischemic stroke. In this review article, we update regulatory molecules newly defined in lymphopoiesis of the intestinal γδ T cells and their novel functions locally in the intestinal mucosa, such as epithelial remodeling, and distantly in pathological setting, e.g., ischemic brain injury repair, psychosocial stress responses, and fracture repair. The challenges and potential revenues in intestinal γδ T cell studies are discussed
Hydroxytyrosol Improves Obesity and Insulin Resistance by Modulating Gut Microbiota in High-Fat Diet-Induced Obese Mice
Obesity is a common chronic metabolic disease that is harmful to human health and predisposes the affected individuals to a cluster of pathologies. Insulin resistance (IR) is one of the most frequent complications of obesity. Hydroxytyrosol (HT) may reduce obesity and IR in high-fat diet (HFD)-fed mice; however, the mechanism underlying is still unknown. Systemic low-grade inflammation and intestinal dysfunction are thought to be associated with obesity and IR. In this study, we found that HFD feeding for 8 weeks altered the intestinal microbiota, injured intestinal barrier function, increased endotoxin release into the blood, enhanced the expression of inflammatory factors (TNF-α, IL-1β, IL-6) and lipid accumulation in liver, caused obesity, and aggravated IR via the JNK/IRS (Ser 307) pathway in HFD mice. We also found that HT gavage could reverse those effects and the beneficial effects of HT were transferable through fecal microbiota transplantation. Our data indicate that HT can improve obesity and IR by altering the composition of the intestinal microbiota and improving integrity of the intestinal wall. We propose that HT replenishment may be used as a dietary intervention strategy to prevent obesity and IR
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