检索结果-南通市图书馆

Blockchain-Based MCS Detection Framework of Abnormal Spectrum Usage for Satellite Spectrum Sharing Scenario

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Communications 2024年第2期21卷 32-48页

作者： Ning Yang Heng Wang Jingming Hu Bangning Zhang Daoxing Guo Yuan Liu college of Communications Engineering Army Engineering UniversityNanjing 210007China

In this paper, the problem of abnormal spectrum usage between satellite spectrum sharing systems is investigated to support multi-satellite spectrum coexistence. Given the cost of monitoring, the mobility of low-orbit satellites, and the directional nature of their signals, traditional monitoring methods are no longer suitable, especially in the case of multiple power level. Mobile crowdsensing(MCS), as a new technology, can make full use of idle resources to complete a variety of perceptual tasks. However, traditional MCS heavily relies on a centralized server and is vulnerable to single point of failure attacks. Therefore, we replace the original centralized server with a blockchain-based distributed service provider to enable its security. Therefore, in this work, we propose a blockchain-based MCS framework, in which we explain in detail how this framework can achieve abnormal frequency behavior monitoring in an inter-satellite spectrum sharing system. Then, under certain false alarm probability, we propose an abnormal spectrum detection algorithm based on mixed hypothesis test to maximize detection probability in single power level and multiple power level scenarios, respectively. Finally, a Bad out of Good(BooG) detector is proposed to ease the computational pressure on the blockchain nodes. Simulation results show the effectiveness of the proposed framework.

关键词： blockchain hypothesis test mobile crowdsensing satellite communication spectrum sharing

Navigating personal recovery:multinomial logistic regression analysis of schizophrenia outcomes in community-dwelling individuals

在线全文

学校读者我要写书评

暂无评论

General Psychiatry 2024年第2期37卷 254-264页

作者： Jutharat Thongsalab Jintana Yunibhand Penpaktr Uthis Boromarajonani college of nursing SurinThailand Faculty of nursing Chulalongkorn UniversityBangkokThailand

Background Schizophrenia is a chronic mental disorder affecting individuals globally,emphasising the significance of personal recovery in mental *** the recovery stages and the associated factors can provide essential insights for targeted *** This study aimed to discern the stages of personal recovery in thai patients with schizophrenia and elucidate the associated factors with each *** A multistage sampling technique was employed,selecting 231 patients with schizophrenia from mental health outpatient departments of general and psychiatric *** collected from March to May 2023 included screening for psychotic symptoms using the Brief Psychiatric Rating Scale and six self-report questionnaires—Stage of Recovery Scale,Beck Cognitive Insight Scale,Brief Resilience Scale,Family Support,Therapeutic Relationship-Patients Version and Social Support Questionnaire—along with personal data *** correlation and multinomial logistic regression were *** The predominant personal recovery stage among participants was stage 3,‘living with disabilities’,comprising 42.4%of the *** factors contributing to personal recovery,explaining approximately 38.4%of the variance,included resilience,family support,therapeutic alliance,hospitalisations since onset and recovery-oriented nursing service *** equations for stages 3 and 4 are as follows:stage 3(living with disability):logit=−4.44+0.74×resilience+0.07×therapeutic alliance+0.02×recovery-oriented nursing service utilisation;stage 4(living beyond disability):logit=−11.57-0.05×hospitalisation since onset+1.96×resilience+0.11×family support+0.06×therapeutic *** The findings emphasise the significance of mental health nursing *** conjunction with recovery-oriented nursing services,strengthening resilience,therapeutic alliances and family support may accelerate personal recovery and reduce hospitalisations am

关键词： schizophrenia selecting globally

The impact of foot reflexology on fatigue and sleep quality in school-aged children undergoing hemodialysis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative nursing 2024年第2期6卷 76-82页

作者： Amal Hashem MOHAMED Mostafa SHABAN Huda Hamdy MOHAMMED Randa Mohamed ABOBAKER Salman Hamdan ALSAQRI Rania Abd-Elnaby Mohammed ALLAM Faculty of nursing Minia UniversityMinyaEgypt college of nursing Jouf UniversitySakakaSaudi Arabia Faculty of nursing Cairo UniversityGizaEgypt Northern college of nursing ARARSaudi Arabia college of nursing University of HailHailSaudi Arabia

Objective:This study aimed to evaluate the effects of foot reflexology on fatigue and sleep quality in school-aged children receiving ***:A quasi-experimental pretest-posttest design was *** children of ages 6-12 undergoing in-center hemodialysis were *** Pittsburgh Sleep Quality Index(PSQI)and Inventory of Fatigue Symptom(IFS)scales were administered at *** then received 30 min of foot reflexology massage before hemodialysis sessions 3 days per week for 12 *** administration of the sleep and fatigue scales occurred after the intervention ***:Reflexology massage led to significant improvements in sleep quality components,including duration(0%-30%normal sleepers),efficiency(0%-50%>85%),latency(50%-0%>60 min),disturbances,and daytime *** mean PSQI score decreased from 18.2 to 9.7(Pnursing intervention for reducing fatigue and improving sleep quality in children on hemodialysis,warranting integration into routine care.

关键词： Fatigue hemodialysis massage pediatric reflexology sleep

Association of spiritual well-being with quality of life among undergraduate nursing students

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative nursing 2024年第1期6卷 49-54页

作者： Ahmad SHAHID Hina HUSSAIN Nazia SHUAIB Ahmad RASOOL Fatima YOUNIS Zoya NASAB Department of nursing Professional College of Nursing and Health SciencesIslamabadPakistan Department of nursing Rawal Institute of Health SciencesIslamabadPakistan Department of nursing Rawal College of NursingIslamabadPakistan School of nursing and Health Zhengzhou UniversityZhengzhouChina

Objective:The study was conducted with the aim of determining the spiritual well-being(SWB)of nursing students and its association with quality of life(QOL).Materials and Methods:A cross-sectional analytical study was conducted with a sample size of 504 nursing students collected from January 2023 to March 2023 in the nursing institutes of Khyber Pakhtunkhwa,Pakistan,using convenient sampling techniques.A Spiritual Health and Life-Orientation Measure(SHALOM)questionnaire for SWB and K-27 QOL(K-27 QOL)instrument were used for data collection that contains three ***:The number of female participants was in the majority(50.4%)compared to male nurses(49.6%).The overall mean score of SWB of the students was 3.79±0.48,while the mean K-27 QOL score was 3.73±*** were significant differences between the groups of gender(P=0.001),while no significant difference within the groups of semester(P=0.061)and college status(0.285).In QOL,there were significant differences within the groups of semester(P=0.000)and college status(P=0.036)while no significant difference in gender category(P=0.480).SHALOM score is positively and moderately correlated with QOL score(r=0.597,P<0.05).Conclusion:Spiritual practices are one of the important factors that are associated positively with QOL,therefore to enhance the QOL,it will require spiritual practices.

关键词： nursing education nursing student quality of life spiritual nursing care spirituality well‑being

Anti-explosion performance and dynamic response of an innovative multi-layer composite explosion containment vessel

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2024年第6期36卷 105-121页

作者： Zhen Wang Heng Chen Qi Yuan Wenbin Gu Xingbo Xie Hongwei Li college of Field Engineering Army Engineering University of PLANanjing 210007China college of Civil Engineering and Architecture Southwest University of Science and TechnologySichuanMianyang 621010China

An innovative multi-layer composite explosion containment vessel(CECV)utilizing a sliding steel platealuminum honeycomb-fiber cloth sandwich is put forward to improve the anti-explosion capacity of a conventional single-layer explosion containment vessel(SECV).Firstly,a series of experiments and finite element(FE)simulations of internal explosions are implemented to understand the basic anti-explosion characteristics of a SECV and the rationality of the computational models and methods is verified by the comparison between the experimental results and simulation *** on this,the CECV is designed in detail and a variety of FE simulations are carried out to investigate effects of the sandwich structure,the explosive quantity and the laying mode of the fiber cloth on anti-explosion performance and dynamic response of the CECV under internal *** results indicate that the end cover is the critical position for both the SECV and *** maximum pressure of the explosion shock wave and the maximum strain of the CECV can be extremely declined compared to those of the *** a result,the explosive quantity the CECV can sustain is up to 20 times of that the SECV can ***,as the explosive quantity increases,the internal pressure of the CECV keeps growing and the plastic deformation and failure of the sandwich structure become more and more severe,yielding plastic strain of the CECV in addition to elastic *** results also reveal that the laying angles of the fiber cloth's five layers have an impact on the anti-explosion performance of the *** example,the CECV with fiber cloth layered in 0°/45°/90°/45°/0°mode has the optimal anti-capacity,compared to 0°/0°/0°/0°/0°and 0°/30°/60°/30°/0°***,owing to remarkable anti-explosion capacity,this CECV can be regarded as a promising candidate for explosion resistance.

关键词： Explosive container Honeycomb-fiber cloth Anti-explosion Aluminum honeycomb core Composite

Preparedness,knowledge,and perception of nursing students about climate change and its impact on human health in India

在线全文

学校读者我要写书评

暂无评论

Regional Sustainability 2024年第1期5卷 107-118页

作者： Ramya Kundayi RAVI Priya BABY Nidhin ELIAS Jisa George THOMAS Kathyayani Bidadi VEERABHADRAIAH Bharat PAREEK college of nursing Medical and Health Sciences UniversityRas Al Khaimah11172United Arab Emirates college of nursing National Institute of Mental Health and Neuro sciencesBangalore560011India college of nursing Amrita Institute of Medical SciencesKochi682041India college of nursing All India Institute of Medical SciencesBhopal462020India Saraswati Professional and Higher Education college of nursing Mohali140413India

Higher education plays an important role in all aspects of *** climate change and sustainability into the curriculum is important to prepare future health-care professionals for climate change and sustainability actions to build resilient health *** this study,we evaluated the preparedness,knowledge,and perception regarding climate change and its impact on human health among Indian nursing students.A quantitative descriptive survey was conducted among 644 undergraduate nursing students studying in three institutes in the southern,northern,and western parts of *** used a structured online questionnaire with established validity and reliability to collect *** data were analyzed using Statistical Package for the Social Sciences version 26 *** results showed that more than half of the students reported experiencing excessive increase(362;56.2%)and decrease(374;58.1%)in temperature in recent *** more than three quarters of the students(494;76.7%)accepted the general truth that climate change is mainly caused by human activities,only less than half of the students(309;48.0%)perceived the impact of climate change to be *** quarters of the students(483;75.0%)had a high level of knowledge regarding climate *** students who had a high level of knowledge about climate change exerted a high perceived impact of climate change(χ^(2)=75.47;Pnursing curriculum,and only one sixth of the students(16.1%)were highly confident about engaging in climate change-related conversation with *** of the students who participated in the study had basic knowledge about climate change and its impact on human ***,there is an observed gap between knowledge and their preparedness and confidence to engage in climate change ***,we propose to strengthen the nursing curriculum by integra

关键词： Climate change Curriculum nursing students Human health India

Clinical competency:perceptions of nursing interns and clinical mentors

在线全文

学校读者我要写书评

暂无评论

Frontiers of nursing 2024年第1期11卷 105-110页

作者： Jackline Prathibha Radhika R.Pai Linu Sara George Fundamentals of nursing Manipal College of NursingManipal Academy of Higher EducationManipalKarnataka 576104India

Objective:To assess the clinical competency of nursing interns and the perception of clinical nurse mentors toward student nurses'clinical ***:A study was carried out among 104 nursing interns and 26 clinical nurse mentors using the purposive sampling technique.A self-repor ted perception scale was used to collect the ***:In general,most nursing interns perceived themselves as clinically competent during the *** clinical nurse mentors too repor ted that the current internship is helping the nursing interns in becoming ***:Frequent clinical evaluation,buddy system,provision of stipends,good leadership,and coordination between the academic institute and hospital are repor ted as the critical motivating factors for improving the clinical competency of student interns.

关键词： clinical competency clinical nurse mentors competence internship nursing interns perception

A Practical Approach for Missing Wireless Sensor Networks Data Recovery

在线全文

学校读者我要写书评

暂无评论

China Communications 2024年第5期21卷 202-217页

作者： Song Xiaoxiang Guo Yan Li Ning Ren Bing The college of Communications Engineering Army Engineering University of PLANanjing 210007China The 63891 Unit of PLA Luoyang 471000China

In wireless sensor networks(WSNs),the performance of related applications is highly dependent on the quality of data ***,missing data is almost inevitable in the process of data acquisition and *** methods often rely on prior information such as low-rank characteristics or spatiotemporal correlation when recovering missing WSNs ***,in realistic application scenarios,it is very difficult to obtain these prior information from incomplete data ***,we aim to recover the missing WSNs data effectively while getting rid of the perplexity of prior *** designing the corresponding measurement matrix that can capture the position of missing data and sparse representation matrix,a compressive sensing(CS)based missing data recovery model is ***,we design a comparison standard to select the best sparse representation basis and introduce average cross-correlation to examine the rationality of the established ***,an improved fast matching pursuit algorithm is proposed to solve the *** results show that the proposed method can effectively recover the missing WSNs data.

关键词： average cross correlation matching pursuit missing data wireless sensor networks

Translation and psychometric validation of the Korean version of the academic nurse self-efficacy scale for Korean bachelor-level nursing students

在线全文

学校读者我要写书评

暂无评论

Frontiers of nursing 2024年第2期11卷 209-219页

作者： Eunkyung Lee Jin-Hwa Park college of nursing Institute of Nursing ScienceDaegu Catholic UniversityNam-guDaegu 42472Republic of Korea

Objective:This study aimed to translate the Academic Nurse Self-Efficacy scale(ANSE),assess its appropriateness for use in Korean nursing students,and evaluate the Korean Version of the Academic Nurse Self-Efficacy scale’s(K-ANSE)validity and ***:The data of 444 nursing college students at 10 universities across the country were collected from November 1,2020 to June 8,*** K-ANSE was analyzed utilizing SPSS 25.0 and AMOS 25.0 *** K-ANSE’s content validity,construct validity,convergent/discriminant validity,criterion-related validity,and reliability were ***:Internal emotion management,auto-regulatory behavior,external emotion management,and sociality were *** Cronbach’sαfor the overall scale was 0.87,and that of the 4 subscales ranged from 0.70 to ***:The Korean version of the ANSE seems to be a valid and reliable instrument to measure Korean bachelor-level nursing students.

关键词： academic self-efficacy Baccalaureate confirmatory factor analysis nursing students psychometrics translation and adaptation