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What Contributes to Satisfaction with Care for Family Caregivers of Terminal Cancer Patients Admitted to General Wards? A Qualitative Study
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作者 Miki Morishita-Kawahara Kiyoko Kamibeppu 《Open Journal of Nursing》 2020年第11期1081-1094,共14页
Satisfaction with care is an important indicator for family caregivers of patients with terminal cancer and is linked to the quality of life. Despite this, few studies have examined the aspects of satisfaction with ca... Satisfaction with care is an important indicator for family caregivers of patients with terminal cancer and is linked to the quality of life. Despite this, few studies have examined the aspects of satisfaction with care of family caregivers of inpatients with cancer in general wards. This qualitative study aimed to elucidate the elements of satisfaction with the care that inpatients with terminal cancer in general wards and their family caregivers receive from medical staff, as perceived by the family caregivers. Semi-structured interviews were conducted with 10 family caregivers of inpatients with terminal cancer. Participants were asked about the care received until then from medical staff, the features of satisfactory care, and the aspects of care they felt were unsatisfactory or could become satisfactory with improvement. The data were analyzed with the content analysis method and the six categories were extracted. For family caregivers of inpatients with terminal cancer in general wards, along with the care identified as important in palliative care, the methods of alleviating symptoms and explaining the patient’s condition were also important. The results highlight the importance of determining a patient-oriented approach and explanations together with each patient and family caregiver, based on an understanding of the long treatment process. 展开更多
关键词 Family Caregivers of Terminal Cancer Patients general wards Qualitative Study Satisfaction with Care
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Relation between Family Functioning and Quality of Life among Family Caregivers of Patients with Terminal Cancer Hospitalized in General Wards
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作者 Miki Morishita-Kawahara Takuya Kawahara Kiyoko Kamibeppu 《Open Journal of Nursing》 2020年第12期1233-1240,共8页
Caring for a patient with terminal cancer poses difficulties for family caregivers. Although families of patients with cancer have been classified by type, little is known about the relation between family functioning... Caring for a patient with terminal cancer poses difficulties for family caregivers. Although families of patients with cancer have been classified by type, little is known about the relation between family functioning and quality of life (QOL) in family caregivers. This study aimed to develop a typology of family functioning in family caregivers of patients with terminal cancer and then examine the relation between the family functioning and QOL of family caregivers. From December 2013 to August 2014, fifty-one family caregivers of patients with terminal cancer were recruited at three hospitals in Tokyo, Japan. Perceptions of family functioning were assessed with the Family Relationship Index, and its three subscores were classified into three groups by cluster analysis. Caregivers’ QOL was measured with the Caregiver Quality of Life Index-Cancer. The average total FRI score among 51 caregivers was 8.5 (SD = 2.8). Family functioning was categorized into three clusters: supportive (n = 12), communicative (n = 30), or conflictive (n = 8). Their QOL was categorized into two groups: the communicative group, with relatively high confliction, showed high QOL comparable to the supportive group. Family functioning in the families of patients with terminal cancer hospitalized in general wards was not good. For improving the QOL of family caregivers, it may be important for the family members to express their feelings and distress if they have conflicts. 展开更多
关键词 Cluster Analysis Family Caregivers of Terminal Cancer Patients Family Functioning general wards Quality of Life
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Development of a Scale to Evaluate the Depressive State among Elderly Patients in General Wards 被引量:1
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作者 Tetsuko Takaoka Ruriko Kidachi 《Open Journal of Nursing》 2017年第4期495-512,共18页
This study aims to develop a scale to evaluate depressive states among elderly patients in general wards, and verify the reliability and validity of the scale. Based on the results of interviews with nurses, we develo... This study aims to develop a scale to evaluate depressive states among elderly patients in general wards, and verify the reliability and validity of the scale. Based on the results of interviews with nurses, we developed a draft of a scale comprised of 48 questions (NDE48). The Geriatric Depression Scale short version (GDS15), and the Zung Self-rating Depression Scale (SDS) were administered to 54 elderly patients. Two groups of nurses completed the NDE48 on different days. After performing an explanatory factor analysis, the NDE48 was simplified to a 16 question item scale (NDE16), comprising three factors. The correlation coefficient between GDS15 and NDE16 was 0.41 (p = 0.00191), and between SDS and NDE16 was 0.30 (p = 0.02633). Alpha coefficient of the total score of NDE16 was 0.88. For inter-rater reliability, the correlation coefficient was 0.57 (p = 0.00005). The findings suggest that the NDE16 will be highly useful when nurses evaluate depressive states among elderly inpatients. 展开更多
关键词 DEPRESSIVE STATES ELDERLY Patients general WARD Non-Self-Rating SCALE Nurses
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Outcome of In-Hospital Cardiac Arrest in Adult General Wards
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作者 Chia-Te Kung Hsien-Hung Cheng +6 位作者 Shin-Chiang Hung Chao-Jui Li Chu-Feng Liu Fu-Cheng Chen Chih-Min Su Jien-Wei Liu Hung-Yi Chuang 《International Journal of Clinical Medicine》 2014年第19期1228-1237,共10页
Objective: Few studies have focused on factors influencing outcomes of patients with in-hospital cardiac arrest (IHCA) in general wards. The goal of this study was to report the outcomes of adult patients with IHCA in... Objective: Few studies have focused on factors influencing outcomes of patients with in-hospital cardiac arrest (IHCA) in general wards. The goal of this study was to report the outcomes of adult patients with IHCA in the general wards and identified the prognostic factors. Methods: Adult patients with IHCA having received cardiopulmonary resuscitation in general wards from January 2008 to December 2011 were retrospectively reviewed from our registry system. The primary outcome was survival to hospital discharge, while the secondary outcome was sustained return of spontaneous circulation (ROSC). Results: A total of 544 general ward patients were analyzed for event variables and resuscitation results. The rate of establishing a ROSC was 40.1% and the rate of survival to discharge was 5.1%. Ventricular tachycardia/ventricular fibrillation (VT/VF) was the initial rhythm in 3.9% of patients. Pre-arrest factors including a high Charlson comorbidity index (CCI) ≥ 9 (OR 0.251, 95% CI 0.098 - 0.646), cardiac comorbidity (OR 0.612, 95% CI 0.401 - 0.933), and arrest time on the midnight shift (OR 0.403, 95% CI 0.252 - 0.642) were independently associated with a low possibility of ROSC. The initial VT/VF presenting rhythms (OR 0.135, 95% CI 0.030 - 0.601) were independently associated with a high survival rate, whereas patients with deteriorated disease course were independently associated with a decreased hospital survival (OR 3.902, 95% CI 1.619 - 9.403). Conclusions: We demonstrated that pre-arrest factors can predict patient outcome after IHCA in general wards, including the association of a CCI ≥ 9 and cardiac comorbidity with poor ROSC, and deteriorated disease course as an independent predictor of a low survival rate. 展开更多
关键词 IN-HOSPITAL Cardiac ARREST Charlson COMORBIDITY Index general Ward CARDIOPULMONARY RESUSCITATION OUTCOME
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Development of a Scale to Evaluate Depressive States among Elderly Patients in General Wards —Verification of the Contents to Improve the Accuracy of the Scale
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作者 Tetsuko Takaoka Ruriko Kidachi 《Open Journal of Nursing》 2021年第6期455-465,共11页
<strong>Purpose:</strong> This study aims to verify the validity of the contents of the Nurse Administered Depression Scale for Elderly Inpatients16 (NDE16) using the Delphi approach in order to further im... <strong>Purpose:</strong> This study aims to verify the validity of the contents of the Nurse Administered Depression Scale for Elderly Inpatients16 (NDE16) using the Delphi approach in order to further improve the accuracy of the NDE16, a scale for rating potential depressive states in elderly inpatients through the observations reported by nurses.<strong> Methods:</strong> Participants were nurses working in general wards for longer than 3 years and who expressed consent to the study participation. Data were collected using the Delphi method (3 times). Responses are scored from 1 to 5 (3 - 5 points as positive) using the Likert method. The standard criteria for inclusion in the further evaluation are “mean ≥ 3.0”, “standard deviation < 1.0”, “median ≥ 3.0”, and “IQR ≤ 1.0”. Items that meet all the criteria at the third survey are employed as question items in the final questionnaire. <strong>Results: </strong>The respondents were 139 females, 10 males, and 1 unknown, aged 25 to 65. The collection rates of the three surveys were 75% to 82%. Based on the results of the first survey, wordings of 9 questions were modified. Since Question 13 “Queries are not really responded to.” did not meet the criteria (IQR = 2) at the third survey, we excluded this question and named the revised scale NDE15. <strong>Discussion: </strong>The reason why Question 13 did not meet the criteria could be due to the difficulty in distinguishing “Expressing thought suppression” from the state of cognitive decline in dementia. Further studies are needed to determine cutoff points. 展开更多
关键词 Depressive States Elderly Patients Delphi Approach general Ward Non-Self-Rating Scale Nurses
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IAP General Circulation Models: A First Step Towards Developing a Local Area Model for Weather Prediction in Nigeria
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作者 李伟平 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 1999年第1期121-134,共14页
In an earlier study, the Atmospheric Models Intercomparison Program (AMIP) simulations of African climate using the nine-layer gridpoint atmospheric general circulation model were found to be closely related to the ob... In an earlier study, the Atmospheric Models Intercomparison Program (AMIP) simulations of African climate using the nine-layer gridpoint atmospheric general circulation model were found to be closely related to the observed European Centre for Medium Range Weather Forecast (ECMWF) temperature data at 500 and 850 hPa. This paper presents the analysis of the simulation of African climate using the Global Ocean-Atmosphere-Land System Model (IAP/LASG GOALS) and the nine-layer spectral general circulation model rhomboidally truncated at zonal wave number 15 (L9R15) developed at the Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences, Beijing. Both model simulations were not significantly different from the National Center for Environmental Prediction (NCEP) Reanalysis monthly mean data for 1980-1995 in the case of surface air temperature, sea level pressure and precipitation, with the GOALS reproducing the seasonal mean climate over Africa better. The implications of the encouraging results in developing a local area model for Nigeria have been discussed. The great role of topography in the developing of general circulation models for numerical modelling of weather and climate has been stressed. 展开更多
关键词 general circulation models Reanalysis data Simulations Local area model
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Positive attitudes towards priority setting in clinical guidelines among Danish general practitioners: A web based survey
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作者 Ann Nielsen Benedicte Carlsen Pia K. Kjellberg 《Health》 2013年第2期188-192,共5页
Aims: Increasing focus on improvement and optimisation of the treatment in primary care and reduction of healthcare costs emphasize the need to understand which factors determines adherence and non-adherence to clinic... Aims: Increasing focus on improvement and optimisation of the treatment in primary care and reduction of healthcare costs emphasize the need to understand which factors determines adherence and non-adherence to clinical guidelines. In the present study, we examined attitudes towards clinical guidelines in Danish general practitioners (GPs). Methods: We conducted a survey among Danish GPs from all five regions of Denmark. In total, 443 GPs answered the web-based questionnaire that contained questions about attitudes and barriers to clinical guidelines. Results: More than 90% of the GPs reported that they have good knowledge of the guidelines and in general follows the guidelines. A majority of the GPs (81%) found it acceptable that economic considerations are part of the guidelines. The most important factors for non- adherence to guidelines were “need of adjustment to clinical practice” and “lack of confidence in guidelines”. The attitudes to clinical guidelines were not significantly associated with practice characteristics such as gender, years of experience, practice organisation and localisation. Conclusions: Our findings show that clinical guidelines are an integrated or internalised part of everyday practice among GPs in Denmark. Furthermore, the findings indicate that Danish GPs are positive towards applying priority setting in their practice. This is decisive in the light of rising healthcare costs due to development of new expensive technologies and ageing populations that puts pressure on the healthcare system in general and primary healthcare in particular. 展开更多
关键词 CLINICAL GUIDELINES general Practitioners ADHERENCE ATTITUDES Barriers
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Intelligent Transformation: General Intelligence Theory
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作者 Alexander Ngu Amaya Odilon Kosso 《International Journal of Intelligence Science》 2024年第3期59-70,共12页
This paper aims to formalize a general definition of intelligence beyond human intelligence. We accomplish this by re-imagining the concept of equality as a fundamental abstraction for relation. We discover that the c... This paper aims to formalize a general definition of intelligence beyond human intelligence. We accomplish this by re-imagining the concept of equality as a fundamental abstraction for relation. We discover that the concept of equality = limits the sensitivity of our mathematics to abstract relationships. We propose a new relation principle that does not rely on the concept of equality but is consistent with existing mathematical abstractions. In essence, this paper proposes a conceptual framework for general interaction and argues that this framework is also an abstraction that satisfies the definition of Intelligence. Hence, we define intelligence as a formalization of generality, represented by the abstraction ∆∞Ο, where each symbol represents the concepts infinitesimal, infinite, and finite respectively. In essence, this paper proposes a General Language Model (GLM), where the abstraction ∆∞Ο represents the foundational relationship of the model. This relation is colloquially termed “The theory of everything”. 展开更多
关键词 INTELLIGENCE generalIZATION ABSTRACTION TRANSFORMATION general Language Model general Intelligence Theory Theory of Everything
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Attitudes of General Hospital Staff towards Persons with Mental Illness: Associations between Place of Training, Ethnicity, and Type of Profession
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作者 Leslie Lim Jeremy Heng Yiong-Huak Chan 《Open Journal of Psychiatry》 2020年第2期53-63,共11页
Objective: Persons with mental illnesses (PMI) commonly report encountering discriminatory attitudes and behaviours by Health Care Professionals (HCPs) involved in their care. Such stigmatising attitudes and behaviour... Objective: Persons with mental illnesses (PMI) commonly report encountering discriminatory attitudes and behaviours by Health Care Professionals (HCPs) involved in their care. Such stigmatising attitudes and behaviours may affect recovery rates and erode quality of care provided by these HCPs. We assess attitudes of HCPs towards PMI in a tertiary general hospital in Singapore. Methods: An anonymised online questionnaire was sent to HCPs working in the hospital. Attitudes were assessed using the Opening Minds Stigma Scale for Healthcare Professionals (OMS-HC), with responses rated on a 3-point Likert scale. Results: Doctors and Chinese staff trained locally were significantly more likely to feel more comfortable treating persons with physical than psychiatric problems, whereas Indian staff were less likely to express such reservations. HCPs generally accepted physical complaints at face value, while nurses tended to adopt critical attitudes toward patients and negatively perceived the utility of psychiatric treatment. For instance, nurses were more likely to judge persons with mental illness as not trying hard enough to get better, while admitting to having difficulty feeling compassion for those with psychiatric problems. Staff who received undergraduate and postgraduate training overseas were more likely to develop favourable attitudes toward PMI. Conclusions: The study has uncovered gaps in the understanding of mental disorders and their treatment. These knowledge deficits should be rectified so as to reduce negative attitudes toward PMI. 展开更多
关键词 ATTITUDES Healthcare PROFESSIONALS general Hospital
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Exploration of the Integration of Curriculum Ideology and Politics into the Educational Pathway of Standardized Training for General Practice Residents
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作者 Zhuan Huang Yaodong Li +4 位作者 Lina Ma Rui Xu Fang Yang Yingpeng Shi Junlin Liu 《Journal of Contemporary Educational Research》 2024年第5期91-96,共6页
In recent years,the national higher education reform has proposed the concept of curriculum ideological and political education as a major element.This integration into the standardized training of general practice re... In recent years,the national higher education reform has proposed the concept of curriculum ideological and political education as a major element.This integration into the standardized training of general practice residents(commonly referred to as general resident training)is an unavoidable trend in the teaching field.Based on the actual situation of our unit at The First Affiliated Hospital of Xi’an Medical University,this paper emphasizes the necessity of incorporating ideological and political education into the general resident training curriculum,despite the absence of pertinent practical experience in how to effectively incorporate such courses into comprehensive residential training.In our hospital,we must assess the ideological and political education in the curriculum of general resident training,proposing a scientific,reasonable ideological and political education concept system for general practice courses,integrating ideological and political education with general practice resident training,and strengthening the team of ideological and political education physicians to teach them to carry out such education,this would foster enthusiasm and initiative.Strengthening admission education and training for general practice resident training,as well as regularly hosting symposiums to share ideas and understand the mission of doctors can provide effective experience for ideological and political education in general resident training courses. 展开更多
关键词 Curriculum ideological and political education general practice general practice residents Standardized training Education path EXPLORATION
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General anesthetic agents induce neurotoxicity through oligodendrocytes in the developing brain 被引量:1
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作者 Wen-Xin Hang Yan-Chang Yang +7 位作者 Yu-Han Hu Fu-Quan Fang Lang Wang Xing-Hua Qian Patrick M.McQuillan Hui Xiong Jian-Hang Leng Zhi-Yong Hu 《Zoological Research》 SCIE CSCD 2024年第3期691-703,共13页
General anesthetic agents can impact brain function through interactions with neurons and their effects on glial cells.Oligodendrocytes perform essential roles in the central nervous system,including myelin sheath for... General anesthetic agents can impact brain function through interactions with neurons and their effects on glial cells.Oligodendrocytes perform essential roles in the central nervous system,including myelin sheath formation,axonal metabolism,and neuroplasticity regulation.They are particularly vulnerable to the effects of general anesthetic agents resulting in impaired proliferation,differentiation,and apoptosis.Neurologists are increasingly interested in the effects of general anesthetic agents on oligodendrocytes.These agents not only act on the surface receptors of oligodendrocytes to elicit neuroinflammation through modulation of signaling pathways,but also disrupt metabolic processes and alter the expression of genes involved in oligodendrocyte development and function.In this review,we summarize the effects of general anesthetic agents on oligodendrocytes.We anticipate that future research will continue to explore these effects and develop strategies to decrease the incidence of adverse reactions associated with the use of general anesthetic agents. 展开更多
关键词 OLIGODENDROCYTES general anesthetic agents NEUROTOXICITY Central nervous system Perioperative neurocognitive disorders
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Extended wet sieving method for determination of complete particle size distribution of general soils 被引量:1
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作者 Shengnan Ma Yi Song +2 位作者 Jiawei Liu Xingyu Kang Zhongqi Quentin Yue 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2024年第1期242-257,共16页
The traditional standard wet sieving method uses steel sieves with aperture?0.063 mm and can only determine the particle size distribution(PSD)of gravel and sand in general soil.This paper extends the traditional meth... The traditional standard wet sieving method uses steel sieves with aperture?0.063 mm and can only determine the particle size distribution(PSD)of gravel and sand in general soil.This paper extends the traditional method and presents an extended wet sieving method.The extended method uses both the steel sieves and the nylon filter cloth sieves.The apertures of the cloth sieves are smaller than 0.063 mm and equal 0.048 mm,0.038 mm,0.014 mm,0.012 mm,0.0063 mm,0.004 mm,0.003 mm,0.002 mm,and 0.001 mm,respectively.The extended method uses five steps to separate the general soil into many material sub-groups of gravel,sand,silt and clay with known particle size ranges.The complete PSD of the general soil is then calculated from the dry masses of the individual material sub-groups.The extended method is demonstrated with a general soil of completely decomposed granite(CDG)in Hong Kong,China.The silt and clay materials with different particle size ranges are further examined,checked and verified using stereomicroscopic observation,physical and chemical property tests.The results further confirm the correctness of the extended wet sieving method. 展开更多
关键词 Particle size distribution(PSD) general soil SILT CLAY Wet sieving Physical and chemical properties
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General anesthetic agents induce neurotoxicity through astrocytes 被引量:1
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作者 Yanchang Yang Tiantian Liu +8 位作者 Jun Li Dandan Yan Yuhan Hu Pin Wu Fuquan Fang Patrick M.McQuillan Wenxin Hang Jianhang Leng Zhiyong Hu 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第6期1299-1307,共9页
Neuroscientists have recognized the importance of astrocytes in regulating neurological function and their influence on the release of glial transmitters.Few studies,however,have focused on the effects of general anes... Neuroscientists have recognized the importance of astrocytes in regulating neurological function and their influence on the release of glial transmitters.Few studies,however,have focused on the effects of general anesthetic agents on neuroglia or astrocytes.Astrocytes can also be an important target of general anesthetic agents as they exert not only sedative,analgesic,and amnesic effects but also mediate general anesthetic-induced neurotoxicity and postoperative cognitive dysfunction.Here,we analyzed recent advances in understanding the mechanism of general anesthetic agents on astrocytes,and found that exposure to general anesthetic agents will destroy the morphology and proliferation of astrocytes,in addition to acting on the receptors on their surface,which not only affect Ca^(2+)signaling,inhibit the release of brain-derived neurotrophic factor and lactate from astrocytes,but are even involved in the regulation of the pro-and anti-inflammatory processes of astrocytes.These would obviously affect the communication between astrocytes as well as between astrocytes and neighboring neurons,other neuroglia,and vascular cells.In this review,we summarize how general anesthetic agents act on neurons via astrocytes,and explore potential mechanisms of action of general anesthetic agents on the nervous system.We hope that this review will provide a new direction for mitigating the neurotoxicity of general anesthetic agents. 展开更多
关键词 ASTROCYTES brain-derived neurotrophic factor general anesthetic agents neuron NEUROTOXICITY N-methyl-D-aspartate receptor perioperative neurocognition Toll-like receptor γ-aminobutyric acid receptor
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A nonlocal dispersal and time delayed HIV infection model with general incidences
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作者 WU Peng ZHANG Yu-huai WANG Ling 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2024年第3期448-457,共10页
Biologically,because of the impact of reproduction period and nonlocal dispersal of HIV-infected cells,time delay and spatial heterogeneity should be considered.In this paper,we establish an HIV infection model with n... Biologically,because of the impact of reproduction period and nonlocal dispersal of HIV-infected cells,time delay and spatial heterogeneity should be considered.In this paper,we establish an HIV infection model with nonlocal dispersal and infection age.Moreover,applying the theory of Fourier transformation and von Foerster rule,we transform the model to an integrodifferential equation with nonlocal time delay and dispersal.The well-posedness,positivity,and boundedness of the solution for the model are studied. 展开更多
关键词 HIV model nonlocal dispersal time delay general incidences
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NORMALIZED SOLUTIONS FOR THE GENERAL KIRCHHOFF TYPE EQUATIONS
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作者 Wenmin LIU Xuexiu ZHONG Jinfang ZHOU 《Acta Mathematica Scientia》 SCIE CSCD 2024年第5期1886-1902,共17页
In the present paper,we prove the existence,non-existence and multiplicity of positive normalized solutions(λ_(c),u_(c))∈R×H^(1)(R^(N))to the general Kirchhoff problem-M■,satisfying the normalization constrain... In the present paper,we prove the existence,non-existence and multiplicity of positive normalized solutions(λ_(c),u_(c))∈R×H^(1)(R^(N))to the general Kirchhoff problem-M■,satisfying the normalization constraint f_(R)^N u^2dx=c,where M∈C([0,∞))is a given function satisfying some suitable assumptions.Our argument is not by the classical variational method,but by a global branch approach developed by Jeanjean et al.[J Math Pures Appl,2024,183:44–75]and a direct correspondence,so we can handle in a unified way the nonlinearities g(s),which are either mass subcritical,mass critical or mass supercritical. 展开更多
关键词 normalized solution Kirchhoff type equations general nonlinearities asymptotic behavior
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Higher-order expansions of powered extremes of logarithmic general error distribution
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作者 TAN Xiao-feng LI Li-hui 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2024年第1期47-54,共8页
In this paper,Let M_(n)denote the maximum of logarithmic general error distribution with parameter v≥1.Higher-order expansions for distributions of powered extremes M_(n)^(p)are derived under an optimal choice of nor... In this paper,Let M_(n)denote the maximum of logarithmic general error distribution with parameter v≥1.Higher-order expansions for distributions of powered extremes M_(n)^(p)are derived under an optimal choice of normalizing constants.It is shown that M_(n)^(p),when v=1,converges to the Frechet extreme value distribution at the rate of 1/n,and if v>1 then M_(n)^(p)converges to the Gumbel extreme value distribution at the rate of(loglogn)^(2)=(log n)^(1-1/v). 展开更多
关键词 logarithmic general error distribution convergence rate higher-order expansion powered ex-treme
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Image Steganography by Pixel-Value Differencing Using General Quantization Ranges
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作者 Da-Chun Wu Zong-Nan Shih 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第10期353-383,共31页
A new steganographic method by pixel-value differencing(PVD)using general quantization ranges of pixel pairs’difference values is proposed.The objective of this method is to provide a data embedding technique with a ... A new steganographic method by pixel-value differencing(PVD)using general quantization ranges of pixel pairs’difference values is proposed.The objective of this method is to provide a data embedding technique with a range table with range widths not limited to powers of 2,extending PVD-based methods to enhance their flexibility and data-embedding rates without changing their capabilities to resist security attacks.Specifically,the conventional PVD technique partitions a grayscale image into 1×2 non-overlapping blocks.The entire range[0,255]of all possible absolute values of the pixel pairs’grayscale differences in the blocks is divided into multiple quantization ranges.The width of each quantization range is a power of two to facilitate the direct embedding of the bit information with high embedding rates.Without using power-of-two range widths,the embedding rates can drop using conventional embedding techniques.In contrast,the proposed method uses general quantization range widths,and a multiple-based number conversion mechanism is employed skillfully to implement the use of nonpower-of-two range widths,with each pixel pair being employed to embed a digit in the multiple-based number.All the message bits are converted into a big multiple-based number whose digits can be embedded into the pixel pairs with a higher embedding rate.Good experimental results showed the feasibility of the proposed method and its resistance to security attacks.In addition,implementation examples are provided,where the proposed method adopts non-power-of-two range widths and employsmultiple-based number conversion to expand the data-hiding and steganalysis-resisting capabilities of other PVD methods. 展开更多
关键词 STEGANOGRAPHY pixel-value differencing multiple-based number conversion general quantization range
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Window Views of Wards in Foreign Hospitals
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作者 LI Siyi SHAO Danjin WANG Xiaobo 《Journal of Landscape Research》 2024年第3期37-42,47,共7页
Through the collection and systematic analysis of documents related to window views of hospitals,it is found that natural window views had a significant impact on patients’health benefits.The research focused on thre... Through the collection and systematic analysis of documents related to window views of hospitals,it is found that natural window views had a significant impact on patients’health benefits.The research focused on three aspects:“shortening length of stay”,“pain reduction”and“improvement of recovery rate”,mainly covering three types of patients:“heart patients”,“postoperative patients”and“patients of rehabilitation centers”.Based on the above analysis,summary and sorting,new directions and perspectives of hospital environment design and research under the concept of comprehensive health of people’s physiological,psychological and social adaptation will be obtained to provide references for the research and practice of health architecture,rehabilitation architecture,biophile design and other fields. 展开更多
关键词 Window views wards Research review Medical buildings Natural environment
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A NOTE ON THE GENERAL STABILIZATION OF DISCRETE FEEDBACK CONTROL FOR NON-AUTONOMOUS HYBRID NEUTRAL STOCHASTIC SYSTEMS WITH A DELAY
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作者 冯立超 张春艳 +1 位作者 曹进德 武志辉 《Acta Mathematica Scientia》 SCIE CSCD 2024年第3期1145-1164,共20页
Discrete feedback control was designed to stabilize an unstable hybrid neutral stochastic differential delay system(HNSDDS) under a highly nonlinear constraint in the H_∞ and exponential forms.Nevertheless,the existi... Discrete feedback control was designed to stabilize an unstable hybrid neutral stochastic differential delay system(HNSDDS) under a highly nonlinear constraint in the H_∞ and exponential forms.Nevertheless,the existing work just adapted to autonomous cases,and the obtained results were mainly on exponential stabilization.In comparison with autonomous cases,non-autonomous systems are of great interest and represent an important challenge.Accordingly,discrete feedback control has here been adjusted with a time factor to stabilize an unstable non-autonomous HNSDDS,in which new Lyapunov-Krasovskii functionals and some novel technologies are adopted.It should be noted,in particular,that the stabilization can be achieved not only in the routine H_∞ and exponential forms,but also the polynomial form and even a general form. 展开更多
关键词 hybrid neutral stochastic differential delay system discrete feedback control general stabilization polynomial stabilization
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Tree: Reducing the use of restrictive practices on psychiatric wards through virtual reality immersive technology training
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作者 Peter Phiri Laura Pemberton +8 位作者 Yang Liu Xiaojie Yang Joe Salmon Isabel Boulter Sana Sajid Jackie Clarke Andy McMillan Jian Qing Shi Gayathri Delanerolle 《World Journal of Psychiatry》 SCIE 2024年第10期1521-1537,共17页
BACKGROUND Restrictive practices(RPs)are defined by measures linked to physical and chemical restraints to reduce the movement or control behaviours during any emergency.Seclusion is an equal part of RPs intended to i... BACKGROUND Restrictive practices(RPs)are defined by measures linked to physical and chemical restraints to reduce the movement or control behaviours during any emergency.Seclusion is an equal part of RPs intended to isolate and reduce the sensory stimulation to safeguard the patient and those within the vicinity.Using interventions by way of virtual reality(VR)could assist with reducing the need for RPs as it could help reduce anxiety or agitation by way of placing users into realistic and immersive environments.This could also aid staff to and change current RPs.AIM To assess the feasibility and effectiveness of using a VR platform to provide reduction in RP training.METHODS A randomised controlled feasibility study,accompanied by evaluations at 1 month and 6 months,was conducted within inpatient psychiatric wards at Southern Health National Health Service Foundation Trust,United Kingdom.Virti VR scenarios were used on VR headsets to provide training on reducing RPs in 3 inpatient psychiatric wards.Outcome measures included general self-efficacy scale,generalised anxiety disorder assessment 7(GAD-7),Burnout Assessment Tool 12,the Everyday Discrimination Scale,and the Compassionate Engagement and Action Scale.RESULTS Findings revealed statistically significant differences between the VR and treatment as usual groups,in the Everyday Discrimination Scale items Q8 and Q9:P=0.023 and P=0.040 respectively,indicating higher levels of perceived discrimination in the VR group.There were no significant differences between groups in terms of general self-efficacy,generalised anxiety disorder assessment 9,and Burnout Assessment Tool 12 scores.A significant difference was observed within the VR group for compassionate engagement from others(P=0.005)over time.Most respondents recorded System Usability Scale scores above 70,with an average score of 71.79.There was a significant reduction in rates of RPs in the VR group vs treatment as usual group with a fluctuating variability observed in the VR group likely due to external factors not captured in the study.CONCLUSION Ongoing advancement of VR technology enables the possibility of creating scenarios and simulations tailored to healthcare environments that empower staff by providing more comprehensive and effective training for handling situations. 展开更多
关键词 Virtual reality Restrictive practices Inpatient wards Restraint Isolation Rapid tranquilisation Covert medication Procedural restrictions Health professions training
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