Multidimensional Form Research Articles

Analysis of Urban Spatial Morphology in Harbin: A Study Based on Building Characteristics and Driving Factors

With the advancement of urbanization, the complexity and diversity of urban spatial forms have become increasingly prominent, profoundly and widely affecting aspects such as urban spatial layout and planning, as well as residents’ quality of life. This paper focuses on the buildings in Harbin City, comprehensively reflecting the spatial form of Harbin through multiple dimensions including building height, volume, and area. This research precisely quantifies three key indicators of urban buildings: building coverage, building expandability, and building staggeredness. Subsequently, these indicators are intertwined with the main driving factors of urban development (including economic development and resident population) to conduct a multidimensional spatial form analysis. The results indicate that the diversity of Harbin’s urban spatial form is the result of the interplay of multiple factors, including economic and demographic influences. These analytical outcomes not only reveal the evolution mechanism of Harbin’s current urban spatial form but also provide data support and theoretical basis for future urban planning and management.

Psychometric examination of the Multidimensional Psychological Flexibility Inventory Short Form (MPFI-24) and the Psy-Flex Spanish versions in individuals with chronic pain.

Acceptance and Commitment Therapy (ACT) has been found to be beneficial for individuals dealing with chronic pain. The theoretical mechanisms of change proposed by ACT are based on the Hexaflex model. To comprehensively reflect this model, the Multidimensional Psychological Flexibility Inventory (MPFI) and Psy-Flex have been developed. The study aimed to adapt the MPFI-24 and the Psy-Flex for Spanish-speaking populations with chronic pain and to examine their dimensionality, internal consistency, convergent validity and incremental validity. This cross-sectional study involved 309 Spanish-speaking adults with chronic pain who completed an online survey. The majority of the participants were women (88.3%). The ages ranged from 18 to 79 years. Factor analysis showed that the Spanish version of the MPFI-24 has 12 factors, consisting of six flexibility and six inflexibility factors, similar to the original version, but lacking second-order general factors. The Psy-Flex demonstrated a single-factor structure, maintaining the general factor of psychological flexibility seen in the original version. The MPFI-24 showed good internal consistency and adequate convergent validity, with the exception of the Acceptance and Experiential Avoidance subscales. The Psy-Flex showed good internal consistency and convergent validity. Notably, both the MPFI-24 and Psy-Flex scores significantly explained additional variance in psychological distress beyond other ACT-related measures of Hexaflex processes; however, only the Psy-Flex explained pain interference. The Spanish adaptations of the MPFI-24 and Psy-Flex are valid and reliable instruments for assessing the Hexaflex model processes in Spanish-speaking adults with chronic pain. Practitioners and researchers in chronic pain will find the Spanish versions of the MPFI-24 and the Psy-Flex here, along with recommendations for their use and scoring based on a robust psychometric rationale. It should be noted that these measures surpass the Chronic Pain Acceptance Questionnaire (CPAQ) and the Psychological Inflexibility in Pain Scale (PIPS), which are considered gold standards in chronic pain assessment.

The Chinese version of the multidimensional psychological flexibility inventory short form (MPFI-24): Assessment of psychometric properties using classical test theory and network analysis

The purpose of this study was to validate the Chinese version of the Multidimensional Psychological Flexibility Inventory (C-MPFI-24) for use in China, taking into account cultural differences, using classical test theory and network analysis. Participants were Chinese university students, middle school students, university teachers, and medical professionals, totaling 3568 valid respondents from an initial pool of 3800. A retest was conducted one month later with 350 university students. The inventory was analyzed using confirmatory factor analysis, correlation analysis, linear regression, and network analysis. Results showed that the two higher-order factors of the C-MPFI-24, psychological flexibility and inflexibility, fit well (χ2 = 1726.36, df = 239, CFI = 0.936, RMSEA = 0.067), with a significant negative correlation between them (−0.72). Correlation with related scales confirmed good convergent validity, and network analysis supported the robustness of the model. Linear regression indicated that the subscales of the C-MPFI-24 significantly explained variance in well-being and distress beyond that of the AAQ-II. The inventory demonstrated good reliability, test-retest stability, and measurement invariance across groups and genders, establishing its reliability and applicability for assessing psychological flexibility and inflexibility in a Chinese context. Further research is encouraged to examine its cross-cultural stability and applicability.

Determination of the relationship between healthy lifestyle behaviors and health locus of control in nursing students

Aims: The first steps in developing healthy lifestyle behaviors are taken in the community and family, and then they develop and change with education. The attribution of the health-related situations experienced by individuals is related to the health locus of control. Health professionals have important roles and responsibilities in the development and maintenance of these behaviors. This study was conducted to determine the relationship between healthy lifestyle behaviors and health locus of control in nursing students. Methods: This descriptive study was conducted with 450 students at XX Faculty between 01.03.2023 and 01.06.2023. Information about the participants was collected using the Sociodemographic Data Form, Multidimensional Health Control Scale Form A (MHLC) and Healthy Lifestyle Behaviors Scale (HLBS). Results: According to the results of the study, the mean age of the students was 21.51±1.47 years. 88.2% of the students were female and 36.7% were 2nd graders. Regression analysis to determine the cause and effect relationship between healthy lifestyle behaviors and multidimensional health locus of control was found significant (F=30.985; p=0.00<0.05). Healthy lifestyle behaviors are explained by internal control, external control and chance control (R2=0.172). Internal control and external control increase healthy lifestyle behaviors (ß=0.959, ß=1.144). Change control had no effect on healthy lifestyle behaviors. Conclusion: In this study, it was observed that the level of multidimensional health locus of control increased as the steps towards the development of healthy lifestyle behaviors increased. Nursing students' acquisition of healthy lifestyle behaviors and increase in health locus of control levels will enable them to provide these behaviors to the individuals they care for in their professional lives.

Control of large amplitude limit cycle of a multi-dimensional nonlinear dynamic system of a composite cantilever beam

For the first time, a control strategy based on Fuzzy Sliding Mode Control is implemented in the control of a large amplitude limit cycle of a composite cantilever beam in a multi-dimensional nonlinear form. In the dynamic model establishment of the investigated structure, the higher-order shearing effect is applied, as well as the second-order discretization. Numerical simulation demonstrates that a multi-dimensional nonlinear dynamic system of the investigated structure is demanded for accurate estimation of large amplitude limit cycle responses. Therefore, a control strategy is employed to effectively suppress such responses of the beam in multi-dimensional nonlinear form.

Exploring the complex association between urban form and crime: Evidence from 1,486 U.S. counties

Urban form contributes to crime prevention. However, most studies not only simplify the relationship between urban form and crime, they also fail to reflect the geographic structure of urban areas. This study first measured a comprehensive multidimensional urban form indicator for 1486 counties in the United States, which was used to characterize the size and geospatial structure of urban areas. Specifically, it described urban form as consisting of three components: 1) size and population distribution; 2) built environment; and 3) landscape environment. Then, generalized additive mixed models were then used to explore linear or nonlinear associations between urban form indicators and different crime types (violent and property crime). This study's main findings were that 1) the relationship between urban form and crime is not only linear but may also be nonlinear; 2) urban size, fragmentation, connectivity, forest mixing, and shrub mixing are associated with all crime types; 3) population distribution and agricultural mixing are associated with violent crime; and 4) urban patch complexity and water mixing are associated with property crime. Overall, the results of this study can provide guidance for long-term planning of urban geographic structures, contributing to the safe and sustainable development of urban areas.

A direct analytical derivation of the multi-dimensional fragility spaces of structures under nonstationary mainshock-multi-aftershock sequences

Performance-based earthquake engineering (PBEE) is a popular direction in the earthquake community, and at this stage, risk-based PBEE has become mainstream. In the risk-based probabilistic framework, seismic fragility analysis constitutes the most important link, and corresponding research on the mainshock–aftershock sequence has received widespread attention in recent years. Since a mainshock is often accompanied by multiple aftershocks and there is great uncertainty in the vibration characteristics of aftershocks, a seismic fragility analysis of structures under a stochastic mainshock-multi-aftershock sequence is meaningful and necessary. The corresponding questions, such as how to derive the multi-dimensional analytical fragility form under a stochastic mainshock-multi-aftershock sequence and how to correlate multiple intensity measures with multiple demand parameters, still require further investigation. In this paper, a direct analytical derivation of the multi-dimensional seismic fragility spaces of structures under nonstationary stochastic mainshock-multi-aftershock sequences is introduced. The methodology framework, implementation steps, and application examples are also provided in detail. Moreover, two scenarios, the one-mainshock-one-aftershock and one-mainshock-two-aftershocks, are considered, and the obtained multi-dimensional analytical fragility spaces for both scenarios are validated. In general, the matching accuracy of the fragility results for both scenarios is proven to be high, and the direct analytical derivation of the multi-dimensional fragility spaces is validated to be ideally consistent, which further provides a reference for multi-dimensional risk analysis under nonstationary stochastic mainshock-multi-aftershock sequences in future work.

Biomimetic Scaffolds-A Novel Approach to Three Dimensional Cell Culture Techniques for Potential Implementation in Tissue Engineering.

Biomimetic scaffolds imitate native tissue and can take a multidimensional form. They are biocompatible and can influence cellular metabolism, making them attractive bioengineering platforms. The use of biomimetic scaffolds adds complexity to traditional cell cultivation methods. The most commonly used technique involves cultivating cells on a flat surface in a two-dimensional format due to its simplicity. A three-dimensional (3D) format can provide a microenvironment for surrounding cells. There are two main techniques for obtaining 3D structures based on the presence of scaffolding. Scaffold-free techniques consist of spheroid technologies. Meanwhile, scaffold techniques contain organoids and all constructs that use various types of scaffolds, ranging from decellularized extracellular matrix (dECM) through hydrogels that are one of the most extensively studied forms of potential scaffolds for 3D culture up to 4D bioprinted biomaterials. 3D bioprinting is one of the most important techniques used to create biomimetic scaffolds. The versatility of this technique allows the use of many different types of inks, mainly hydrogels, as well as cells and inorganic substances. Increasing amounts of data provide evidence of vast potential of biomimetic scaffolds usage in tissue engineering and personalized medicine, with the main area of potential application being the regeneration of skin and musculoskeletal systems. Recent papers also indicate increasing amounts of in vivo tests of products based on biomimetic scaffolds, which further strengthen the importance of this branch of tissue engineering and emphasize the need for extensive research to provide safe for humansbiomimetic tissues and organs. In this review article, we provide a review of the recent advancements in the field of biomimetic scaffolds preceded by an overview of cell culture technologies that led to the development of biomimetic scaffold techniques as the most complex type of cell culture.

Persymmetric design of jointly detection and bearing estimation for a 2D array radar in training demanding scenarios

The problem of joint detection and bearing estimation for a two-dimensional (2D) array radar in training demanding scenarios is addressed. Regardless of the cause of the angle deviation, we model the 2D steering vector as a fully incremental form. Thus, the 2D array requires the optimization of two target cosine offsets. To relax the requirement of sufficient training data, we incorporate persymmetric structure in the design of the receiver. Unlike traditional joint optimization, the persymmetric structure brings a more complex multidimensional matrix form, making detection optimization more difficult. Then, we transform the optimization problem into a fractional-order programming problem and solve it by Dinkelbach algorithm. Finally, numerical results verify the superiority of the proposed method over conventional methods in insufficient training scenarios. Also, the proposed method is more robust.

Disentangling the effects of PTSD from Gulf War Illness in male veterans via a systems-wide analysis of immune cell, cytokine, and symptom measures

BackgroundOne-third of veterans returning from the 1990–1991 Gulf War reported a myriad of symptoms including cognitive dysfunction, skin rashes, musculoskeletal discomfort, and fatigue. This symptom cluster is now referred to as Gulf War Illness (GWI). As the underlying mechanisms of GWI have yet to be fully elucidated, diagnosis and treatment are based on symptomatic presentation. One confounding factor tied to the illness is the high presence of post-traumatic stress disorder (PTSD). Previous research efforts have demonstrated that both GWI and PTSD are associated with immunological dysfunction. As such, this research endeavor aimed to provide insight into the complex relationship between GWI symptoms, cytokine presence, and immune cell populations to pinpoint the impact of PTSD on these measures in GWI.MethodsSymptom measures were gathered through the Multidimensional fatigue inventory (MFI) and 36-item short form health survey (SF-36) scales and biological measures were obtained through cytokine & cytometry analysis. Subgrouping was conducted using Davidson Trauma Scale scores and the Structured Clinical Interview for Diagnostic and statistical manual of mental disorders (DSM)-5, into GWI with high probability of PTSD symptoms (GWIH) and GWI with low probability of PTSD symptoms (GWIL). Data was analyzed using Analysis of variance (ANOVA) statistical analysis along with correlation graph analysis. We mapped correlations between immune cells and cytokine signaling measures, hormones and GWI symptom measures to identify patterns in regulation between the GWIH, GWIL, and healthy control groups.ResultsGWI with comorbid PTSD symptoms resulted in poorer health outcomes compared with both Healthy control (HC) and the GWIL subgroup. Significant differences were found in basophil levels of GWI compared with HC at peak exercise regardless of PTSD symptom comorbidity (ANOVA F = 4.7, P = 0.01,) indicating its potential usage as a biomarker for general GWI from control. While the unique identification of GWI with PTSD symptoms was less clear, the GWIL subgroup was found to be delineated from both GWIH and HC on measures of IL-15 across an exercise challenge (ANOVA F > 3.75, P < 0.03). Additional differences in natural killer (NK) cell numbers and function highlight IL-15 as a potential biomarker of GWI in the absence of PTSD symptoms.ConclusionWe conclude that disentangling GWI and PTSD by defining trauma-based subgroups may aid in the identification of unique GWI biosignatures that can help to improve diagnosis and target treatment of GWI more effectively.

Orthorexia Nervosa: Examining the reliability and validity of two self-report measures and the predictors of orthorexic symptoms in elite and recreational athletes

ObjectivesOrthorexia nervosa (ON) is characterised by a pathological fixation on healthy eating. Athletes are at a greater risk of developing eating disorders (EDs) and since ON is sharing many features with EDs, is considered an emerging health concern as it might compromise athlete's health and performance. Despite recent interest in orthorexia, there are still a lot of inconsistencies around ON and the sensitivity of the available instruments used to assess ON is questioned. The present study aimed to examine the psychometric properties of two self-reported measures of ON, to assess differences in ON between elite and recreational athletes, and to explore correlates of orthorexic scores among athletic individuals. MethodsCross-sectional study of 215 athletes; 59 elite (mean age 26.71 ± 6.83 years) and 156 recreational athletes (mean age 36.13 ± 14.33 years) completed the Teruel Orthorexia Scale (TOS), Eating Habits Questionnaire (EHQ), Short Form Food Frequency Questionnaire (SFFFQ), Eating Attitudes Test-26 (EAT-26), and the Hewitt-Flett Multidimensional Perfectionism Scale Short Form (HF-MPS-SF). ResultsExploratory factor analysis revealed two-factor structures for both the TOS and the EHQ. Elite athletes exhibited higher scores for ‘healthy orthorexia’ (HeOr) (p = .016), ‘knowledge of healthy eating’ (EHQ-Knowledge) (p = .038), diet quality score (DQS) (p = .013) and self-orientated perfectionism scores (p = .032) compared to recreational athletes. Multiple linear regression analysis revealed DQS to be a consistent and significant predictor of all ON symptoms (both TOS and EHQ). BMI was negatively associated with HeOr (β = -.21, p < .001). EAT-26 dieting, bulimia and oral subscales predicted ‘orthorexia nervosa’ (OrNe; smallest p = .015) and ‘problems associated with healthy eating’ (EHQ-Problems; smallest p = .012). Other-orientated perfectionism (OOP) was the only perfectionism construct to predict HeOr (β = .23, p < .01), EHQ-Knowledge (β = .34, p < .001), EHQ-Problems (β = .18, p < .01) and EHQ-Total (β = .27, p < .001). ConclusionsFindings suggest TOS is a reliable measure of ON symptomatology in athletes and further refinement of the EHQ is required. Improvements in assessment tools, study methodology and classification of athlete characteristics are required to advance our understanding of ON in athlete populations.

The Influence of Urban Form on Land Surface Temperature: A Comprehensive Investigation from 2D Urban Land Use and 3D Buildings

Urban form plays a critical role in shaping the spatial differentiation of land surface temperature (LST). However, limited research has investigated the underlying driving forces and interactions of multidimensional urban form, specifically considering two-dimensional (2D) urban land use and three-dimensional (3D) buildings, on LST. Furthermore, their multi-scale outcomes remain unclear. Taking the main urban area of Wuhan City as an example, a total of nine indicators—the proportion of administration land (PA), the proportion of commercial land (PB), the proportion of industrial land (PM), the proportion of residential land (PR), the proportion of water area (PE), the building density (BD), the building height (BH), the floor area ratio (FAR), and the sky view factor (SVF)—were selected; this paper used the geographic detector model to investigate the driving force of LST spatial differentiation in winter and summer, as well as the interaction of various influencing factors from a multi-scale perspective. The results showed that (1) the average LST in industrial land was higher than that in commercial land, both in summer and winter. The LST in administration land was higher than that in residential land, while in winter, it is the opposite. (2) The spatial differentiation of summer LST was mainly dominated by 3D buildings, while the spatial differentiation of winter LST was mainly dominated by 2D land use. (3) BD was the leading driving force of LST spatial differentiation in summer, and the interaction between BD and any other indicator showed the most significant explanatory power, which is the same for PM in winter. (4) As scale increased, the explanatory power of 2D urban land use for LST spatial differentiation gradually increased both in winter and summer, while the explanatory power of PE on LST spatial differentiation decreased. The explanatory power of BD, FAR, and SVF on LST spatial differentiation remains basically unchanged. The explanatory power of BH on summer LST spatial differentiation decreases with increasing scale, while the explanatory power of BH on winter LST spatial differentiation remains in a stable state. (5) The interaction among all urban form factors primarily increases as the scale increases, except for the interaction between BH and 2D urban land use in summer, and the interaction between PE and PR in winter. The research can provide scientific decision-making support for the collaborative optimization of multiscale urban forms to improve the urban thermal environment.

A Study on the Multidimensional Expression Form of Ancient Chinese Teaching in Universities Based on Multidimensional Analysis Model

Abstract With the continuous development of computer technology, the teaching of ancient Chinese has realized a quantitative and statistical research path for a large-scale corpus. In this paper, based on a multidimensional analysis model, six disciplines in the humanities domain (Chinese literature, history, philosophy) and social sciences domain (economics, sociology, law) of ancient Chinese were selected as dimensions, and 111 linguistic features of ancient Chinese in the corpus were factor analyzed. Multivariate ANOVA and post hoc tests were conducted on the discourse dimension scores of different disciplinary domains, and qualitative analyses were conducted in conjunction with the linguistic features in the specific corpus to further verify the linguistic domain coefficient of variation of ancient Chinese. The results of the study show that the results of the Levenes test for homogeneity of variance in the teaching of ancient Chinese in a single dimension are all p &lt; 0.0001, while there are highly significant differences between the historical and philosophical domain features in the humanities (p = 0.001 ≤ 0.01), and extremely significant differences with the other four disciplines. The results of the multidimensional expression form of ancient Chinese teaching based on the multidimensional analysis method proposed in this paper effectively advance the advancement of ancient Chinese teaching and enable students to learn Chinese culture from other dimensions while learning ancient Chinese.

Built environment as interface: a relation-based framework for the intersections between built, biotic, social, and health processes during COVID-19 and beyond

By broadening disciplinary perspectives to architecture and design, philosophy of science, and systems biology, this paper aims to explore the interconnections between built, social, biotic, and health processes with key attention to the moderating roles of the built environment. The focus is part diagnostic and part prescriptive. Initially, we specify failures in COVID-19 representational infrastructure and practice in accounting for built environment and social process impacts on public health factors. By presenting three intertwined problems with scientific representation in COVID-19 modeling and data-gathering, we examine to what extent current scientific practices fail to robustly account for the complex intersections between built, biotic, social, and health processes. We suggest that resolving the presented problems requires the development of new conceptual precedents for the analysis of causal relations in changing contexts. The second focal point is prescriptive. By discussing conceptual developments that spotlight relations—e.g., ‘context’, ‘nudge’, ‘affordance’, and ‘interface’—we organize the numerous moderating roles of built environment contexts, and we suggest practical applications to ongoing public health practices—such as, cautioning against nudge policies. Ultimately, we argue that the built environment can be represented not only as a single variable (or handful of discrete variables) but also as an interface that reorganizes multiple causal landscapes—concurrently, deregulating factors and leaving others unaffected. Because of the difficulty of representing emergent properties, relevant to differential built environment burden and inequitable health outcomes, we provide ways to visualize the built environment as interface in multidimensional form. We conclude that adequately representing the various moderating roles of the built environment goes a step beyond how to represent complexity, and it requires asking a deeper normative question: who ought to be involved in representing complexity.

Physiotherapists’ perceptions on using a multidimensional clinical reasoning form during psychologically informed training for low back pain.

PurposeBuilding clinical reasoning skills is important to effectively implement psychologically informed practice. We developed a multidimensional clinical reasoning form (CRF) to be used by physiotherapists in a psychologically informed practice training programme for low back pain. In this paper we describe the development of the CRF, how the CRF was used in the training, and present an evaluation of physiotherapists’ perceptions of the CRF. MethodsQualitative semi-structured interviews were conducted with ten physiotherapists purposively sampled in primary care. Data were gathered through pre, and post training focus group interviews and a secondary analysis of individual physiotherapist interviews conducted after the training. Thematic analysis was used to analyse the data and capture the emergent themes. ResultsTwo main themes emerged before the training: (1) the CRF ‘needs formal training’ and (2) ‘lacked instruction’. Three main themes emerged after the training (1) it provided ‘a helpful framework for multidimensional clinical reasoning’ (2) the CRF, and accompanying operational definitions, helped physiotherapists ‘elicit information, with ‘question prompts’ helpful in facilitating patient disclosure (3) ‘Utility’ - although the CRF was not formally used by the physiotherapists it provided a conceptual reasoning framework to work from with more challenging patients. ConclusionThe CRF was not designed to be used in isolation by clinicians without training. However, when used as a training adjunct it appears to be valued by physiotherapists to help develop their critical thinking and better characterise patients’ presentations in order to personalise care from a bio-psychosocial perspective.

Innovative research on propagation modes of short video works based on digital technology

Abstract In today’s information explosion, simple text and pictures have long lost the market, replaced by the multidimensional expression form which integrates text, pictures, sound and other elements and mobilizes people’s vision, hearing, smell and other senses. Therefore, in the context of digital technology, this paper deeply explores the innovative propagation modes of short video works by establishing the CONVLSTM propagation model. The results show that the innovation of the similarity symbol system in the content of short video works is 65%. The innovation of symbol interpretation in the content of short video works is 73%. Then, with respect to the form strategy of short video works, the innovations of short video works on Weibo, Douyin, Kuaishou and Wechat platforms are 54%, 93%, 24% and 45% respectively. Therefore, it is concluded that the unique expression of Douyin short video works is the most innovative point, which differentiate from the traditional TV-style short video works on Wechat and Weibo platforms.

“Discrimination is always intersectional” – understanding structural racism and teaching intersectionality in medical education in Germany

BackgroundRacism in medicine represents a global problem. It takes place on the individual, institutional and structural level. Especially structural racism can have serious effects on the health of individual people. Furthermore, racist discrimination is not always based on race solemnly but frequently intersects with other social categories such as gender, class or religion. To describe this multidimensional form of discrimination the term intersectionality has been coined. However, the understanding of structural intersectional racism in medicine is still fragmented, especially in the German context. Yet, medical students need to be trained in understanding structural and intersectional racism to see the impact of racist structures on the patient’s health.MethodWe conducted a qualitative study to explore the knowledge, awareness and perception of racism in medicine and health care of medical students in Germany. Our research questions are how do medical student understand structural racism and its effects on health in Germany? Do students see interrelations with other forms of discrimination and in this context to what extent are they familiar with the concept of intersectionality? Which categories intersect from their point of views with race in context of medicine and health care? We conducted focus groups with medical students (n = 32) in Germany.ResultsOur results demonstrate that students have a wide spectrum of knowledge, awareness and perceptions about racism from being rather elaborate to very little knowledge about it. The students have particular problems to understand and situate structural racism in Germany. Some raised doubts about the relevance. Yet, other students are aware of the concept of intersectionality and are convinced that racism must be looked at from an intersectional perspective.ConclusionsThe diverse knowledge, awareness and perceptions of medical students about structural racism and intersectionality hints to a lack of systematic education of medical students about these issues in Germany. Yet, in context of diversifying societies an understanding about racism and its impact on health is imminent for future medical doctors to provide good care for their patients. Therefore, this knowledge gap must be systematically filled by the medical education.

Contribution of Copenhagen School to the Security Studies

Security Studies cover the security of referent objects, individuals, or states. Since the Second World War, the importance and depth of Security Studies have increased. In the post-cold war period, it was seen as a purely military field and was handled within the scope of the power policies of the states. In the post-Cold War period, it emerged as a multidimensional form. This research describes prominent approaches such as Realism, Liberalism, Peace, and Critical Security Studies and the most recent essential theories. The research underlines the three pillars of The Copenhagen School, which has contributed to the academic literature on securitization/desecuritization theory, regional security complex theory, and sectoral security approach in international security studies. In the securitization theory, any subject can be non-politicised, politicised, or elevated to a national security concern level. According to the Regional Security Complex pillar, standard points, security priorities, and security dynamics must coincide with establishing a region in the security realm. Lastly, the safety of human societies is affected by factors in five primary areas - military, political, economic, social, and environmental factors. The study concludes that the Copenhagen School occupies a significant position among security studies methodologies and offers a helpful framework for examining contemporary global security concerns.

Multidimensional evaluation of offline and online education in dermatology teaching during the COVID-19 pandemic in a chinese teaching hospital: a cross-sectional study

BackgroundThe global spread of Coronavirus disease (COVID-19) has led to the use of online teaching methods in universities, but the effect of online education on dermatology teaching remains unclear.MethodsWe designed a multi-dimensional teaching evaluation form for data collection, student teaching feedback evaluation, and assessed the scores of final theoretical and clinical skill tests, to compare the effective difference between online and offline teaching of dermatology.ResultsA total of 311 valid questionnaires of medical undergraduates were collected, 116 of which were enrolled for offline learning, and 195 for online learning. The average score of final theoretical test in the online teaching group had no significant difference compared with that in the offline teaching group (75.33 ± 7.37 vs.75.63 ± 7.51, P = 0.734). However, both scores of skin lesion recognition test and medical history collection test in the online teaching group were significantly lower than that in the offline teaching group (6.53 ± 0.86 vs. 7.10 ± 1.11, P < 0.001; 6.70 ± 1.16 vs. 7.62 ± 0.85, P < 0.001). Additionally, the scores of understanding skin lesions in the online teaching group were significantly lower than that in the offline group (P < 0.001), and the scores of overall understanding of skin diseases and evaluating their learning mode in the online teaching group also decreased (P < 0.05). Among the 195 students enrolled in the online learning group, 156 students (80.0%) recognized that the time of offline teaching should be increased.ConclusionsBoth online and offline education can be used in dermatology theory teaching, but online education is less efficient in skin lesion and practical skills learning. More online teaching software with skin diseases characteristic should be developed to improve the online teaching effect.

Acutely enhancing affective state and social connection following an online dance intervention during the COVID-19 social isolation crisis

The COVID-19 pandemic has forced many throughout the world to isolate themselves from their respective communities to stop the spread of disease. Although this form of distancing can prevent the contraction of a virus, it results in social isolation and physical inactivity. Consequently, our communities have become heavily reliant on digital solutions to foster social connection and increase physical activity when forced to isolate. Dance is a multidimensional form of physical activity that includes sensory, motor, cognitive, rhythmic, creative, and social elements. Long-term, interventional studies in dance have shown positive effects on both mental and social health; however, little has been done to examine the acute effects and no studies to date have explored the relationship between the affective state and social outcomes of dance. We examined the hypothesis that online dance is associated with improvements in affective state and social connection during a time of social isolation, namely, the COVID-19 crisis. Healthy adults (age ≥ 18; n = 47) engaged in a single session of 60 min of self-selected online dance, completing a series of validated self-reported questionnaires before and after class. We found that online dance was associated with improvements in affective state as measured by increased positive affect and self-esteem and decreased negative affect and depressive symptoms. Additionally, online dance was associated with improvements in social and community connectedness. Further, we found that those who experienced the largest increases in self-esteem and decreases in negative affect demonstrated the largest gains in social connectivity. Although in-person dance classes may be optimal for formalized dance training, online dance instruction offers an accessible platform that can provide mental and social health benefits during the COVID-19 social isolation crisis. We conclude that through online dance, individuals can experience a connection between the body, mind, and community.