Evaluation of the Living Conditions and Health Perceptions of Waste Electrical and Electronic Equipment Handlers in the Informal Sector in Dakar

Electrical and electronic devices are becoming an increasingly important part of our society. In Africa, and in Senegal in particular, the handling and management of electronic and electrical equipment (EEE) that has reached the end of its life is mainly informal. This professional environment is characterized by the disintegration of the sector and the social heterogeneity that can be found there. The objective of this study is to assess the standard of living of electrical and electronic equipment waste handlers in the Dakar region, as well as their perception of their health. A survey was used to obtain information on sociodemographic background, living arrangements, perception of health status, and good practices to be implemented in case of work-related health problems. Life style, perception of general health and health problems were ranged as excellent, very good, good, average and poor. Informal recyclers in the Dakar region lived mainly in rooms and buildings as tenants (49.1%), or in family homes (48.4%) before starting this activity, and 51.2% continue to live in rooms and buildings as tenants compared to 41.4% who still live in a family home. The perception of health status ranged from poor to excellent, and 4.9% believe that they are limited in work due to a disability or health problem. Informal work is a heterogeneous phenomenon that makes research and policymaking particularly complex. There are several external factors within informal WEEE re-cyclers that can cause health problems or functional disability. However, the living conditions and the perception they have of their state of health are contradictory to the working conditions and the social environment to which they belong. A biomedical approach would consolidate these achievements by confirming or invalidating them.

Intelligent 6G Wireless Network with Multi-Dimensional Information Perception

Intelligence and perception are two operative technologies in 6G scenarios.The intelligent wireless network and information perception require a deep fusion of artificial intelligence(AI)and wireless communications in 6G systems.Therefore,fusion is becoming a typical feature and key challenge of 6G wireless communication systems.In this paper,we focus on the critical issues and propose three application scenarios in 6G wireless systems.Specifically,we first discuss the fusion of AI and 6G networks for the enhancement of 5G-advanced technology and future wireless communication systems.Then,we introduce the wireless AI technology architecture with 6G multidimensional information perception,which includes the physical layer technology of multi-dimensional feature information perception,full spectrum fusion technology,and intelligent wireless resource management.The discussion of key technologies for intelligent 6G wireless network networks is expected to provide a guideline for future research.

Information perception and feedback mechanism and key techniques of multi-modality human-robot interaction for service robots

With the increasing of the elderly population and the growing hearth care cost, the role of service robots in aiding the disabled and the elderly is becoming important. Many researchers in the world have paid much attention to heaRthcare robots and rehabilitation robots. To get natural and harmonious communication between the user and a service robot, the information perception/feedback ability, and interaction ability for service robots become more important in many key issues.

Strategic information perception methods and practices in the open source intelligence

Open source intelligence is one of the most important public data sources for strategic information analysis. One of the primary and core issues of strategic information research is information perception,so this paper mainly expounds the perception method for strategic information perception in the open source intelligence environment as well as the framework and basic process of information perception. This paper argues that in order to match the information perception result with the information depiction result,it conducts practical exploration for the results of information acquisition,perception,depiction and analysis. This paper introduces and develops a monitoring platform for information perception. The results show that the method proposed in this paper is feasible.

Perception and Information Seeking Behaviour of Rural Households towards Health Promoting Practices in Maigana District of Kaduna State, Nigeria

Information is valuable, increases understanding and reduces uncertainty. Limited knowledge and access to health promoting and disease prevention programmes are more pronounced in rural than urban areas of Nigeria. Furthermore, the paucity of healthcare services in these rural communities also contributes to the prevalence of health challenges in the rural sector. This study investigated the perception and information seeking behavior of rural households in Maigana District of Kaduna State, Nigeria towards health promoting practices. A random sample of 152 respondents selected from five of eleven wards in the district was interviewed using a pre-tested structured questionnaire. The results, based on a 4-point Likert type scale and benchmark of 2.5 showed a very poor perception of health promoting practices among the respondents. Also, the information needs of the respondents were shown to be enormous. Three of the six socio-demographic variables regressed were found to significantly influence the information seeking behavior of the respondents regarding health promoting practices. Constraints limiting the embracement of health promoting practices were identified and measures aimed at promoting healthier living standards in rural communities were recommended. The study concludes that vast knowledge gaps do exist coupled with the poor perception of HPPs by the respondents.

Bioinspired tactile perception platform with information encryption function

Mimicking tactile perception is critical to the development of advanced interactive neuromorphic platforms.Inspired by cutaneous perceptual functions,a bionic tactile perceptual platform is proposed.PDMS-based tactile sensors act as bionic skin touch receptors.Flexible indium tin oxide neuromorphic transistors fabricated with a single-step mask pro-cessing act as artificial synapses.Thus,the tactile perceptual platform possesses the ability of information processing.Interestingly,the flexible tactile perception platform can find applications in information encryption and decryption.With adoption of cipher,signal transmitted by the perception platform is encrypted.Thus,the security of information transmis-sion is effectively improved.The flexible tactile perceptual platform would have potentials in cognitive wearable devices,advanced human-machine interaction system,and intelligent bionic robots.

A contention-based efficient-information perception algorithm (CEiPA) for vehicular ad hoc networks

The problem of information dissemination is researched for vehicular ad-hoc networks （VANET） in this paper, and a contention-based effficient-information perception algorithm （CEiPA） is proposed. The idea of CEiPA is that beacons are delivered over VANET with limited lifetime and efficient information. CEiPA consists of two phases. The first one is initialization phase, during which the count timers Tcyce and Tlocal are set to start beacon delivery while Tcycle is also used to monitor and restart beaconing. The second one is beacon delivery phase. An elaborate distance function is employed to set contention delay for beacons of each vehicle. In this way beacons will be sent in order, which decreases the collision of beacons. Simulation results show that CEiPA enables each beacon to carry more efficient information and spread them over more vehicles with lower network overhead than the periodic beacon scheme. CEiPA is also flexible and scalable because the efficient information threshold it employs is a balance among the freshness of information, network overhead and perception area of a vehicle.

Research on Network Cognition Model and Mechanism of Intelligent Information Network

Intellectualization has been an inevitable trend in the information network,allowing the network to achieve the capabilities of self-learning,self-optimization,and self-evolution in the dynamic environment.Due to the strong adaptability to the environment,the cognitive theory methods from psychology gradually become an excellent approach to construct the intelligent information network(IIN),making the traditional definition of the intelligent information network no longer appropriate.Moreover,the thinking capability of existing IINs is always limited.This paper redefines the intelligent information network and illustrates the required properties of the architecture,core theory,and critical technologies by analyzing the existing intelligent information network.Besides,we innovatively propose a novel network cognition model with the network knowledge to implement the intelligent information network.The proposed model can perceive the overall environment data of the network and extract the knowledge from the data.As the model’s core,the knowledge guides the model to generate the optimal decisions adapting to the environmental changes.At last,we present the critical technologies needed to accomplish the proposed network cognition model.

Multisensor information fusion:Future of environmental perception in intelligent vehicles

As urban transportation increasingly impacts daily life,efficiently utilizing traffic resources and developing public transportation have become crucial for addressing issues such as congestion,frequent accidents,and noise pollution.The rapid advancement of intelligent autonomous driving technologies,particularly environmental perception technologies,offers new directions for solving these problems.This review discusses the application of multisensor information fusion technology in environmental perception for intelligent vehicles,analyzing the components and performance of various sensors and their specific applications in autonomous driving.Through multisensor information fusion,the accuracy of environmental perception is enhanced,optimizing decision support for autonomous driving systems and thereby improving vehicle safety and driving efficiency.This study also discusses the challenges faced by information fusion technology and future development trends,providing references for further research and application in intelligent transportation systems.

Mechanism of Cross-modal Information Influencing Taste

Studies on the integration of cross-modal information with taste perception has been mostly limited to uni-modal level.The cross-modal sensory interaction and the neural network of information processing and its control were not fully explored and the mechanisms remain poorly understood.This mini review investigated the impact of uni-modal and multi-modal information on the taste perception,from the perspective of cognitive status,such as emotion,expectation and attention,and discussed the hypothesis that the cognitive status is the key step for visual sense to exert influence on taste.This work may help researchers better understand the mechanism of cross-modal information processing and further develop neutrally-based artificial intelligent(AI)system.

Perceptions and Barriers to Contraceptive Use among Adolescents Aged 15 - 19 Years in Kenya: A Case Study of Nairobi

Even after the launch of family planning program in Kenya, in 1967, contraceptive use among adolescents has remained below 10 percent while child bearing has increased from 2 percent at age 15 to 36 percent at age 19. To understand the roles of perceptions and barriers on contraceptive use, a mixed method study design was applied to a conceptual framework that operationalized these concepts using data from different sources of social interactions in Nairobi, Kenya. Quantitative data were collected from 1119 adolescents aged 15 - 19 years. Qualitative data were collected from adolescents, adolescents’ parents and their school teachers. The later were analyzed and interpreted together with the results from cross-tabulations and logistic regression in order to understand the roles of perceptions and barriers. Contraceptive use was found to be 8.6 percent among the adolescents. Overall, unfavourable perceptions among adolescents, parents and teachers seemed to have contributed to low contraceptive use. Unfavourable perceptions played greater role compared to barriers such as sexual partner communication, opinion on adolescents to use a contraceptives and ability to seek contraceptives. Qualitative data show that teachers and parents lack adequate information and skills to discuss sexuality issues. Linking data among adolescents, parents and teachers help to understand the roles of perceptions and barriers to contraceptive use in Kenya. The findings suggest capacity building of teachers and parents on accurate sexuality information for adolescents while services should be youth-friendly.

Why adults and teachers information about sexual behavior and its consequences does not prevent unplanned pregnancies among adolescents in Nairobi, Kenya

Context: Despite a high number of unwanted pregnancies in Kenya, contraceptive use among adolescents is very low. Establishing the nature of sexuality discussions is critical to determine perceptions and barriers affecting contraceptive use among adolescents. Methods: The study used systematic random sampling to collect data to examine sexuality information and knowledge that affect perception and barriers on contra-ceptive use among 1119 adolescents aged 15 - 19 years in Nairobi. The survey was conducted using the 2009 Kenya Demographic and Health Survey enumeration areas and projections based on the 1999 population census. Data were collected using structured interviews, focus group discussions (FGDs) and in-depth interviews (IDIs) among adolescents, parents and teachers. Quantitative data were analyzed using Statistical Package for Social Sciences (SPSS) software while qualitative information was analyzed using iT Atlas. Results: Although teachers were identified as a primary source of sexuality information, they were poorly prepared to teach the subject. While the study found negative perceptions on sexuality education, most FGDs and IDIs supported the need for its integration in the school curriculum. Most adolescents who used con- traceptives had perceptions that their parents approved. Source of sexuality information, living arrangement and perceptions on contraceptives for unmarried adolescents were statistically associated with contraceptive use. Conclusion: The study showed that sexuality information from parents and teachers was biased against adolescents using contraceptives. There is need to address attitudes in discussing contraceptive use for adolescents by parents and teachers to enhance positive perceptions and increase contraceptive use by adolescents.

STUDY ON AUDIO INFORMATION HIDING METHOD BASED ON MODIFIED PHASE PARTITION

Hiding efficiency of traditional audio information hiding methods is always low since the sentience similarity cannot be guaranteed. A new audio information hiding method is proposed in this letter which can impose the insensitivity with the audio phase for auditory and realize the information hiding through specific algorithm in order to modify local phase within the auditory perception. The algorithm is to introduce the operation of "set 1" and "set 0" for every phase vectors, then the phases must lie on the boundary of a phase area after modified. If it lies on "1" boundary, it comes by set 1 operation. If it lies on "0" boundary, it comes by set 0 operation. The results show that, compared with the legacy method, the proposed method has better auditory similarity, larger information embedding capacity and lower code error rate. As a kind of blind detect method, it fits for application scenario without channel interference.

大学生社交媒体信息安全风险感知影响因素

文章提出社交媒体信息安全风险感知影响因素关系假设,以大学生社交媒体用户群体为研究对象,通过问卷调研风险感知现状,在构建结构方程模型的基础上对问卷数据进行了模型验证和中介效应检验。研究发现:大学生社交媒体信息安全风险感知程度的城乡间差距明显,其面对信息安全风险主要采用系统式处理;媒体信任度、社会群体归属感、卷入认知会对系统式处理产生影响,知识和信息有效性会对启发式-系统式处理产生影响;系统式处理在知识、媒体信任度、社会群体归属感、卷入认知、信息有效性和风险感知之间起完全中介效应,负面情绪直接正向影响风险感知。

量子传感(Ⅰ):基础理论与方法

作为当前三大核心量子技术之一的量子传感技术,是量子信息感知与获取的重要物理实现基础,也是发展历史最悠久、技术成熟度最高、实际应用范围最广、潜在应用最多的量子技术。文章是量子传感的第一部分,主要介绍量子传感的基础理论与方法。首先从理论上总结量子传感的定义及基本概念,指出量子传感“量子性”的由来,并从实际应用的角度,提出量子传感的技术外延以及分类依据;接着详细介绍了有关量子传感的基本实现架构,以及描述量子传感性能的核心技术指标,归纳了用于提高量子传感性能的物理原理及技术方法。

基于信息觅食理论的消费者在线评论搜索行为研究

[目的/意义]本研究旨在从信息觅食理论出发,分析点评类软件消费者在线评论搜索行为的内在机理。[方法/过程]以信息觅食理论为基础,围绕信息线索、斑块模型和菜单模型构建了消费者在线评论搜索行为模型。采用问卷调查法收集352份有效样本数据,并利用结构方程模型对理论模型进行分析与检验。[结果/结论]评论内容质量、评论丰富性、评论效价以及评论者资信度4类信息线索均会正向显著影响消费者斑块收益感知,进而正向影响消费者在线评论搜索行为。此外,评论效价也会直接正向显著影响消费者在线评论搜索行为。本研究在理论层面深入揭示了消费者在线评论搜索行为的内在机理,延伸了信息觅食理论的研究情境与边界;在实践层面为点评类软件的功能优化及引导消费者有效搜索在线评论提供了相关建议。

媒介空间信息传播感知体系及架构研究——兼论空间偏向的媒介传受特质

互联网媒介产生后,新媒体发展不断呈现出空间偏向,人类信息传播活动也越来越依靠并体现为空间感知力的强化。其中,以生活态、情境态、应用态内容的拟真化场景感知为基础,以全息态、多模态、沉浸态形态的数字化生态感知为面貌,以场势态、智势态、动势态状态的符号化态势感知为结构,以效能态、数值态、建模态成效的全域化融合感知为能效,构成了媒介空间信息传播的基本感知体系与架构。

刺激“泛化”与刺激“甄别”对仿冒品购买行为的影响

文章运用刺激泛化和刺激甄别理论,分析“泛化”和“甄别”情境对消费者仿冒品购买意愿的影响机理,探讨从众和品牌显著度在其中的调节作用。研究发现:“泛化”情境正向影响仿冒品购买意愿,“甄别”情境则起负向影响作用,质量感知在其中起完全中介作用;进一步地,在从众的调节下,仅“泛化”情境对仿冒品购买意愿的正向影响显著增强,并且“泛化”和“甄别”情境对仿冒品购买意愿的影响仅对高品牌显著度产品有效。研究结论为企业设计、推广产品提供了参考思路,并为有效遏制仿冒品的泛滥提供多元视角和启发。

量子传感(Ⅲ):核心应用与未来展望

作为量子信息感知物理实现基础的量子传感技术是三大核心量子技术之一,也是发展历史最悠久、技术成熟度最高、实际应用范围最广、潜在应用最多的量子技术。文章是量子传感系列综述的第三部分,在前两部分内容的基础上,从实际应用角度出发,介绍量子传感技术在导航定位授时、遥感探测、生物医学和基础物理等代表性领域的应用现状,阐述了量子传感的阶段性发展特征,包括量子传感的核心使能组件、量子传感的适应性难题等,最后,结合从传感到信息感知的论述,给出了量子传感技术的未来展望。

面向大规模同质化生成式信息集聚的情报感知实现研究

[目的/意义]技术催化使信息突显规模大、同质化门槛低和生成式工具应用频繁的生产特点,在非限定空间集聚作用推动下有望充当武器化工具,从情报感知出发探讨防患未然手段策略尤为必要。[方法/过程]从信息流量条件、同质化属性、生成式工具根源与集聚演化4个角度对大规模同质化生成式信息集聚现象进行识别,并在此基础上建立有针对性的情报感知流程,将其融合为两步方法设计以实现研究目标。围绕实证结果及其背后原因从现象特点出发探讨情报感知能力持续建设方略。[结果/结论]研究发现方法性能良好,能够实现信息集聚规模、集聚同质化程度、集聚特征与集聚威胁动力学预警方面的情报内容表征,为健全安全感知神经末梢提供支撑。[局限]情报感知结果仅聚焦威胁发现,缺乏对现象成因的重点关注,未来可从理论角度展开深入论证以更全面地反映表象之下的底层机理。