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The Chinese version of the M. D. Anderson Symptom Inventory-Head and Neck Module (MDASI-HN-C) has been linguistically validated. However, its psychometric properties have not been established yet. The purpose of the study was to psychometrically validate the MDASI-HN-C in patients with nasopharyngeal carcinoma (NPC).130 Chinese NPC patients who were undergoing radiotherapy (RT) participated in this cross-sectional study. The content, convergent, and construct validity of the MDASI-HN-C were examined. The reliability of the instrument was tested by examining the internal consistency and test-retest reliability.Cronbach's α coefficients ranged from 0.85 to 0.91 for the three subscales of the MDASI-HN-C. The 3-day test-retest reliability was acceptable with intraclass correlation coefficients (ICC) ranged from 0.52 to 0.71. The scale content validity index (S-CVI) was satisfactory (0.97). Subscale scores of the MDASI-HN-C were negatively correlated with the total score of the Chinese version of the Functional Assessment of Cancer Therapy-Head and Neck Scale (FACT-HN-C) as hypothesized (The MDASI-HN-C shows desirable psychometric properties for evaluating symptom burden in NPC patients, which can be used in both clinical and research contexts.

To design and develop a complex, evidence‑based, theory‑driven, and culturally appropriate character strengths-based intervention (CSI) for breast cancer patients, following the Medical Research Council (MRC) framework.From 2018 September to 2020 November, a complex intervention perspective was adopted. The rationale, methods, and processes employed in carrying out the study were reported. The acceptability and feasibility of intervention program were evaluated as a part of subsequent pilot study. Based on piloting, a refined and optimized definitive intervention was obtained. The development of the intervention is an iterative process involving input from three key stakeholders: experts, medical staff, and patient representatives.The systematic review revealed CSIs were effective and the selected theory served as a guide and indicated theory-inspired modifications. A representative team of breast cancer patients and oncology nurses collaboratively developed and tailored the intervention content and format with attention to the acceptability and feasibility. Five main strategies, including peripheral, evidential, linguistic, constituent-involving, and sociocultural strategies, were used to achieve and strengthen the cultural appropriateness. After the pilot phase, several refinements were made on the CSI program, such as editorial changes in the booklet or alternative suggestions for difficult strengths-based activities (e.g., outdoor activities). All participants not only expressed satisfaction with the program in process evaluation, but also reported perceived benefits such as enjoyable and sociable experience, better well-being, and increased confidence.Consideration of the MRC framework, theory guidance, and suggestions from stakeholders during intervention development can optimize uptake and sustainability in the clinical setting. It is recommended that randomized controlled trial be used in future studies to assess the intervention, the process and the mechanisms of the intervention. Our approach may offer implications for the design and implementation of similar initiatives to support cancer patients.ClinicalTrials.gov Register Identifier: NCT04219267, 07/01/2020, retrospectively registered.

This study aimed to examine the fidelity of intervention delivery and identify precursory factors contributing to the successful delivery and beneficial effects of family-oriented dignity therapy.This was a process evaluation with quantitative and qualitative methods alongside a randomized controlled trial from March to May 2019. Nonparametric statistics were used to analyze how participants' demographics (The fidelity was achieved with minor deviations from the protocol. Higher educational level and higher income were significantly correlated with lower levels of existential distress (H ​= ​12.20,Fidelity and precursory factors that enhance the beneficial effects of family-oriented dignity therapy were identified. Reinforcement strategies, such as using supplementary video, audio, and reading materials; developing a flexible approach to expressing feelings; and exploring lessons and achievements from various perspectives, are recommended for future research to enhance intervention effects.The study was registered in the Chinese Clinical Trial Registry (registration number: ChiCTR1900020806).

Objective: This article aimed to report the experience of developing a complex nurse-led, theory-driven, and evidence-based educational intervention program intended to manage the nutrition impact symptom cluster experienced by patients with nasopharyngeal carcinoma (NPC) during radiotherapy, based on the Medical Research Council (MRC) framework. Methods: The “development” and “feasibility and piloting” phases of the MRC framework were used to guide the intervention development. The development phase included identifying the evidence base through a systematic review, exploring the relevant and guiding theory to enhance the effectiveness of the intervention and conducting a qualitative study to identify the intervention modelling. For the feasibility and piloting phase, we conducted a pilot study to examine the feasibility and estimate the effectiveness of the intervention. Results: The systematic review revealed that nurse-led educational interventions were used commonly for symptom cluster management, with promising effectiveness. The theoretical foundation was provided by the Theory of Unpleasant Symptoms, which indicates that an educational intervention can help patients to manage symptom cluster by influencing psychological, situational, and physiological factors. The qualitative study further provided contents of the intervention based on the perspectives of NPC patients and health professionals. The resulting program involves a nurse-led, family caregiver involvement, educational intervention with two sessions that uses a booklet as a medium. The pilot study found that conducting the educational intervention program was feasible and it also had some favorable effects on managing the nutrition impact symptom cluster in NPC patients. Conclusions: The MRC framework provided a strong structure with which to develop a complex intervention for nutrition impact symptom cluster management through a theory-driven and evidence-based approach. The evaluation of the intervention, the delivery process and the mediation mechanism of change using a rigorous randomized controlled trial design is recommended.

It is well-documented in the literature that dignity therapy is feasible and effectively improves the end-of-life experience of the terminally ill. In a similar vein, this study aimed to develop and investigate the feasibility of evidence-based and culturally sensitive family-oriented dignity therapy for Chinese patients with lung cancer undergoing chemotherapy.Three phases of the Medical Research Council framework were adopted to guide the development of the novel dignity therapy intervention. It was preliminarily designed based on a qualitative study and a systematic review, Erikson's eighth stage of psychosocial development, and the dignity model. The feasibility and acceptability of the intervention were examined in a pilot randomized controlled trial with 12 recruited dyads of patients and family caregivers.The intervention consists of three face-to-face sessions that facilitate participants' reminiscences and promote their communication. Recruitment and response rates for the feasibility study of the intervention were 92.3% and 75%, respectively. Both patients and family caregivers reported that the intervention alleviated their psychological distress and improved communication.The Medical Research Council framework serves as a useful scientific basis for modifying dignity therapy with a culturally sensitive approach. The results of the feasibility study suggest that the family-oriented dignity therapy intervention is feasible, acceptable and has the potential to enhance the effects of dignity therapy.

Tamoxifen is commonly prescribed for preventing recurrence in patients with breast cancer. However, the responses of the patients on tamoxifen treatment are variable. Cytochrome P450 genetic variants have been reported to have a significant impact on the clinical outcomes of tamoxifen treatment but no tangible conclusion can be made up till now. The present review attempts to provide a comprehensive review on the associative relationship between genetic polymorphisms in cytochrome P450 enzymes and survival in breast cancer patients on adjuvant tamoxifen therapy. The literature search was conducted using five databases, resulting in the inclusion of 58 studies in the review. An appraisal of the reporting quality of the included studies was conducted using the assessment tool from the Effective Public Health Practice Project (EPHPP). Meta-analyses were performed on CYP2D6 studies using Review Manager 5.3 software. For other studies, descriptive analyses were performed. The results of meta-analyses demonstrated that shorter overall survival, disease-free survival and relapse-free survival were found in the patients with decreased metabolisers when compared to normal metabolisers. The findings also showed that varying and conflicting results were reported by the included studies. The possible explanations for the variable results are discussed in this review.

Aims and objectives To explore barriers to hepatocellular carcinoma screening among patients with hepatitis B. Background Hepatitis B-related hepatocellular carcinoma is a major cause of cancer-related mortality globally. A preventive strategy for screening is needed to improve early tumour detection and overall survival. However, utilisation remains suboptimal and barriers are understudied and largely focused on clinical factors. Design A qualitative study based on the preventive health model using phenomenological hermeneutical approach. Methods Face-to-face semi-structured interviews were conducted with 23 hepatitis B patients from November 2020 to February 2021. Interpretative phenomenological analysis was used. The COREQ checklist was followed. Results Four themes were identified: (i) miscognition, (ii) cultural stigma and taboo, (iii) social norms of enduring hardship and (iv) social barriers at the community, health system and policy levels. Patients had misconceptions about inactive carriers, asymptomatic nature of chronic hepatitis B, hepatocellular carcinoma risks and screening recommendations. Influenced by the taboo of hepatocellular carcinoma, stigma against hepatitis B and enduring hardship norms, they perceived screening as divination, avoided utilisation to hide disease status and endured symptoms until they were intolerable. Insufficient community support, a lack of shared decision-making in health systems, and inadequate rural reimbursement policy and hepatocellular carcinoma detection capacity further precluded utilisation. Conclusions Cognitive and sociocultural barriers precluded individuals' intention, utilisation and persistence of hepatocellular carcinoma screening. The results highlight intervention targets for miscognition, stigma, taboo and social norms; propose family-focused, community-based education programs; suggest health systems to introduce decision aids; and inform policymaking and upskilling of physicians in rural areas. Relevance to clinical practice Collaborative efforts are needed to improve real-world hepatocellular carcinoma screening, including education to address knowledge deficiencies, psychological counselling to reduce stigma and taboo beliefs, support for shared decision-making and reimbursement policies.

Background Nursing research training is important for the improvement of nursing research competence of clinical nurses. High-quality development is crucial for a good nursing research training program. Therefore, the objectives of this study are: (1) To develop a blended emergent research training program for clinical nurses based on a needs assessment and related theoretical framework; (2) To describe and discuss the uses and advantages of the ADDIE model (Analyze, Design, Develop, Implement, Evaluate) in the instructional design and potential benefits of the blended emergent teaching method. Methods This intervention development study adopted mixed-methods design. The ADDIE model (Analyze, Design, Develop, Implement, Evaluate) was followed to develop the research training program for clinical nurses based on the limitations of current nursing research training programs, the needs of clinical nurses, and the theoretical foundation of blended emergent teaching. Results In this study, a theoretical framework of blended emergent teaching was constructed to provide theoretical guidance for the development of training program. Following the ADDIE model, a blended emergent research training program for clinical nurses to improve nursing research competence was developed based on the needs of clinical nurses and the theoretical framework of blended emergent teaching. Conclusions The nominal group technique could effectively identify learners’ common needs and priorities. The ADDIE model is a valuable process model to guide the development of a blended emergent training program. Blended emergent teaching is a promising methodology for improving the learner’s learning initiative and educational outcomes. More empirical studies are needed to further evaluate the blended emergent teaching to promote the development of related theories and practice in nursing education.

Music may be a safe and effective coping strategy for psychological management. The objectives of this review were to identify the effects of music interventions on anxiety, depression, and quality of life (QoL) among cancer patients receiving chemotherapy.Fourteen databases were searched from the inception date to December 2020 to identify eligible randomized controlled trials (RCTs). Gray literature was also examined. The protocol of this systematic review was registered with PROSPERO (registration number: CRD42021223845). Two reviewers independently assessed eligibility, extracted data, and evaluated methodological quality. Meta-analysis was done. Subgroup analysis was conducted for intervention types, the person selecting music, music delivery method, timing, and session duration.Nine RCTs were identified, among which six were eligible for the meta-analysis. All studies were at a high risk of bias, and the overall quality of evidence was low to very low. The pooled results reveal that music intervention could reduce anxiety (SMD: - 0.29, 95% CI - 0.50 to - 0.08) and improve QoL (SMD: 0.42, 95% CI 0.02 to 0.82). However, it fails to affect depression (p = 0.79). The findings demonstrate no significant difference between patient-selected music and researcher-selected music, recorded music, and live music, while a length of 15-20 min/session and offering immediately before chemotherapy are more effective on anxiety than that of 30-45 min and delivering during chemotherapy.Music intervention may be a beneficial tool for anxiety reduction and QoL among cancer patients receiving chemotherapy. More high-quality RCTs are needed to ascertain the true impact of those outcomes.

Objectives The review aims to identify available evidence related to the effects of dignity therapy on dignity, psychological well-being, and quality of life (QoL) among patients with cancer under palliative care. Methods Thirteen electronic databases were searched for published articles in English or Chinese from inception to May 2018. Methodological rigour was assessed through the Joanna Briggs Institute (JBI) checklist for randomised controlled trials and quasi-experimental studies. Sufficient data from four trials were statistically pooled with Review Manager; otherwise, a narrative summary was used. Results Ten articles describing eight studies met the selection criteria and were included in the review. None of the studies met all JBI checklist criteria. Meta-analysis results revealed that dignity therapy significantly improved dignity-related distress in existential distress domain (mean differences [MD]: -0.26, 95% CI, -0.50 to -0.02, .03) and social support domain (MD: -0.23, 95% CI, -0.39 to -0.07, .004), but nonsignificant improved depression and anxiety. Narrative summaries indicated that dignity therapy exerted positive effects on patients' dignity, psychological well-being, and QoL. Conclusions Dignity therapy is a promising approach to improve psychological well-being among patients with cancer under palliative care. However, the effects of dignity therapy on dignity and QoL are inconsistent. Further extensive studies should measure the impact of dignity therapy through qualitative and quantitative approaches to establish outcomes in psychological well-being. Studies with sensitivity to the cultural context within which dignity therapy applied should be conducted to explore its effects on patients with cancer at the early stages of illness trajectory.

Background: Antenatal depression is a severe public health problem. Many studies support the concept that neuroticism, social support, and sleep quality are closely related to antenatal depression. However, there is little evidence concerning the influencing pathways of these variables on antenatal depression. The aim of this study is to investigate the pathways from neuroticism, social support, and sleep quality to antenatal depression during the third trimester of pregnancy. Methods: A cross-sectional study design was used. A total of 773 eligible women in the third trimester of pregnancy submitted valid questionnaires from June 2016 to April 2017. Instruments with good reliability and validity were used to measure neuroticism, social support, sleep quality, and antenatal depression. Structural equation modeling was used to explore the pathways from neuroticism, social support, and sleep quality to antenatal depression during the third trimester of pregnancy. Results: Antenatal depression is shown to be positively correlated with neuroticism and negatively correlated with social support and sleep quality. Neuroticism is shown to have a direct effect and indirect effects through social support and sleep quality on antenatal depression. Conclusions: Neuroticism influences antenatal depression directly and indirectly. Social support and sleep quality are the mediators of the indirect relationship between neuroticism and antenatal depression. Our results suggest that a personality test offered to all pregnant women could help detect a vulnerability to depression, whereupon intervention in the domains of sleep and social support could prove preventive.

IntroductionPromoting the quality of death and achieving a good death is one of the most important goals of palliative care in cancer care. Few studies synthesised views of patients with cancer on the notion of a good death and its associated factors. By eliciting the core elements of a good death, the review aims to identify potential unmet needs of patients with cancer and reveal their common values and care preferences at the end of life. The review also has the potential to inform the development of guidelines for clinical care and shared decision-making in palliative care practice.Methods and analysisA qualitative systematic review will be conducted and reported according to the Joanna Briggs Institute (JBI) methodology for systematic review and synthesis of qualitative data and the Preferred Reporting Items for Systematic Review and Meta-Analysis. Comprehensive search will be performed in six English and two Chinese databases from inception to 30 April 2022 to retrieve relevant qualitative articles focusing on the notion of a good death from the perspective of patients with cancer. Data will be extracted using the JBI standardised data extraction tool for qualitative research. The quality of the included studies will be critically appraised using the JBI Qualitative Assessment and Review Instrument. Data extraction and quality appraisal will be conducted by two reviewers independently. A meta-aggregative approach and narrative summary will be used to synthesise data.Ethics and disseminationEthical approval is not needed. We will disseminate the findings through international conferences related to cancer care or palliative care. The final review will be submitted and published in a peer-reviewed journal.PROSPERO registration numberCRD42021266629.

Enhancing patients' sense of dignity is the core element of high-quality palliative care. In Western countries, dignity therapy has shown promising positive effects on the sense of dignity and end-of-life experience. To apply this therapy in Chinese patients, a theory-driven, culturally relevant family-oriented dignity therapy was developed, guided by the Medical Research Council framework for complex intervention development.This study examined the effectiveness of family-oriented dignity therapy in improving dignity-related distress, depression, and spiritual well-being in Chinese patients with lung cancer undergoing chemotherapy.A randomised controlled trial.Patients who were diagnosed with lung cancer and undergoing chemotherapy were recruited using convenience sampling from a cancer hospital in Changsha, China. A significant family caregiver of each patient was invited to participate. Patients who met the inclusion criteria and agreed to participate (N = 120) were randomly assigned to receive family-oriented dignity therapy (intervention group, n = 60) or attention (control group, n = 60). The Patient Dignity Inventory, Patient Health Questionnaire-9, and Functional Assessment of Chronic Illness Therapy - Spiritual Well-being Scale were used to assess dignity-related distress, depression, and spiritual well-being, respectively, at baseline and 1- and 4-week follow-up. A generalised estimating equation was used to analyse the intervention effects across the time points.Compared with the control group, the patients in the intervention group showed significantly greater reduction in existential distress (β: -1.372, 95% CI: -2.269, -0.472; p = 0.003) and depression (β: -3.430, 95% CI: -5.032, -1.829; p0.001) at week one, as well as significantly greater improvement in spiritual well-being at both week one (β: 3.705, 95% CI: 0.599, 6.811; p = 0.019) and week four (β: 4.939, 95% CI: 0.476, 9.401; p = 0.030).Family-oriented dignity therapy has the potential to relieve existential distress and depressive symptoms and improve spiritual well-being. We expect our finding to impact research on family-oriented dignity therapy and enhance its effectiveness. We may also have an impact on nursing practice by providing a means to initiate conversations between nurses and the patients and family caregivers to relieve the psychosocial distress of patients during treatment. This study has been registered in the Chinese Clinical Trial Registry (registration number: ChiCTR1900020806).

Background A diagnosis of cancer and its treatments can be associated with a prominent issue of loss of dignity or an undermined sense of dignity for patients. Research is increasingly being conducted into how patients with cancer experience dignity, with the aim to build clinical foundations for care that preserves patients' sense of dignity. Aim This review summarises and synthesises the available empirical literature on the experience of dignity in patients with cancer regarding both the perception of dignity and associated factors. Method An integrative review method was used. A literature search was conducted in 11 databases using the search terms 'dignity' OR 'existential' OR 'existentialism' combined with 'cancer'. The Mixed Methods Appraisal Tool (version 2011) was adopted to appraise the methodological quality of the included studies. Results Nine qualitative studies and 13 quantitative studies met the selection criteria and were included in the review. The ways that patients with cancer perceived dignity include autonomy/control, respect, self-worth, family connectedness, acceptance, hope/future and God/religious. Factors associated with dignity include demographics, physical and psychosocial distress, experiences of suffering and coping strategies. Conclusion Dignity-conserving care should respect patients' human autonomy to strengthen their sense of self-worth, acceptance, hope, reinforce family connectedness, and foster coping strategies to control the physical, psychosocial factors and experience of sufferings that threaten their sense of dignity.

Safeguarding the perceived dignity of cancer patients has been recently attracting attention, but its development is constrained by the ambiguous construct of dignity. This study aims to describe the perceived dignity of cancer patients undergoing chemotherapy on the basis of the dignity model and to provide insights into the promotion of dignity-conserving care in China. A qualitative descriptive design was conducted with face-to-face, semi-structured, and individual interviews. Consecutive sampling of cancer patients undergoing chemotherapy in a public hospital was conducted. Semi-structured interviews were performed by a registered nurse with experience in palliative care research. Data were analysed using the framework method with inductive and deductive approaches. Twenty patients aged 28–70 years old completed the interviews. Perceived dignity themes were classified into three categories, namely illness-related concerns, dignity-conserving repertoire, and social dignity inventory. In comparison with the dignity model, social dignity inventory had two added themes: communication openness and financial burden. These themes affect the perceived dignity of Chinese patients. The perceived dignity of patients can be affected by various issues, including illness, personal attitudes and practices and social environments. Culture and economics considerably affect the construct of dignity among the Chinese population. Family-oriented approaches are recommended to create an environment where patients feel valued, respected and supported. This method will help cancer patients adapt to the changes brought on by their illness and maintain dignity.

To synthesize the characteristics and effects of couple-based intervention on sexuality and the quality of life (QOL) of cancer patients and their intimate partners and its implications for future research and practice.A systematic review and meta-analysis of randomized and non-randomized controlled studies of interventions was conducted in nine English databases and two Chinese databases, with identification of related studies published in English and Chinese. The quality of the studies was assessed using the tools of the Effective Public Health Practice Project.A total of 33 articles were identified for systematic review and 23 articles were identified for meta-analysis. For patients, the effect size was 0.42 (Hedges's g, 95% CI = 0.05-0.78, p = 0.03) for physical health. For partners, the effect size was 0.52 (Hedges's g, 95% CI = 0.06-0.98, p = 0.03) for sexual relationships. However, moderate to high heterogeneity was reported. Effects on sexual function, sexual self-concept, and mental health for couples were not significant.Couple-based interventions had small to medium-sized effects on physical health for cancer patients. Partners could derive medium effects for improvement in sexual relationships from couple-based intervention. Future research should pay more attention to sexual self-concept in cancer patients and target types of cancer that are more likely to compromise sexuality and QOL.The systematic review and meta-analysis has been registered in PROSPERO with registration number: CRD42019119047.

Physical activity (PA) has declined in China due to urbanization in the past two decades. Evidence-based programs are good approaches to promote PA, but are limited in China. Adopting existing programs can be a viable option. Prior to that, readiness assessment is needed. This study aimed to assess community readiness levels for disseminating evidence-based PA programs to older adults in Changsha, China. In-person interviews were conducted with 33 participants of five districts in Changsha to assess the community readiness level in five dimensions: community knowledge of efforts, community climate, community knowledge about the issue, leadership and resources. Data was transcribed, reviewed and compared with an anchored rating scale to provide a stage of readiness score ranging from 1 (no awareness) to 9 (high level of community ownership). Participants included 14 community staff, 13 older adults, four community leaders and three health professionals. The top three barriers to disseminating PA programs were lack of appropriate locations, funding and instructors. The top three resources were availability of indoor space, chairs and loudspeakers. Community leadership was the highest-rated readiness dimension (3.3 out of 9) followed by community climate (3.2), community knowledge of efforts (3.1) and resources (2.8); knowledge about the issue scored the lowest (2.7). The overall community stage readiness score of Changsha was 3.0 out of 9. The stage of readiness for communities in Changsha, China is ‘vague awareness’. Developing strategies to improve community readiness levels may increase evidence-based PA program dissemination in Changsha, China.

To synthesize the characteristics and effects of couple-based intervention on sexuality and the quality of life (QOL) of cancer patients and their intimate partners and its implications for future research and practice. A systematic review and meta-analysis of randomized and non-randomized controlled studies of interventions was conducted in nine English databases and two Chinese databases, with identification of related studies published in English and Chinese. The quality of the studies was assessed using the tools of the Effective Public Health Practice Project. A total of 33 articles were identified for systematic review and 23 articles were identified for meta-analysis. For patients, the effect size was 0.42 (Hedges’s g, 95% CI = 0.05–0.78, p = 0.03) for physical health. For partners, the effect size was 0.52 (Hedges’s g, 95% CI = 0.06–0.98, p = 0.03) for sexual relationships. However, moderate to high heterogeneity was reported. Effects on sexual function, sexual self-concept, and mental health for couples were not significant. Couple-based interventions had small to medium-sized effects on physical health for cancer patients. Partners could derive medium effects for improvement in sexual relationships from couple-based intervention. Future research should pay more attention to sexual self-concept in cancer patients and target types of cancer that are more likely to compromise sexuality and QOL. The systematic review and meta-analysis has been registered in PROSPERO with registration number: CRD42019119047.

Aim To explore challenges that Chinese head nurses confront on financial management from the perspective of different levels of nursing and non-nursing managers and to provide contemporary nurse managers with suitable supports. Methods Eighteen nursing leaders in different levels were divided into two groups: Junior Leadership Group (head nurses) and Senior Leadership Group (nurse coordinator, nurse executive, and vice-president of the hospital). All the subjects were invited to participate in a semi-structured interview. The interviews were audio-taped and transcribed, and data were analyzed using a comparative content approach. Results The four following challenges that head nurses confront on financial management practice were identified from the research findings: 1) lack of intrinsic motivation; 2) insufficient training and education on financial management and nursing economics; 3) desires for cross-uniting communication and cooperation; 4) insufficient reference managerial tool. Conclusions The confusion confronted by head nurses in Changsha include three aspects: managerial roles, managerial training, and managerial tools. Cooperative management model, evidence-based management training, and data-driven tools will contribute to improving the financial management capacity of nurse managers.

Driven in part by the development of genomics, proteomics, and bioinformatics as new disciplines, there has been a tremendous resurgence of interest in physical methods to investigate macromolecular structure and function in the context of living cells. This volume in Methods in Cell Biology is devoted to biophysical techniques in vitro and their applications to cellular biology. The volume covers methods-oriented chapters on fundamental as well as cutting-edge techniques in molecular and cellular biophysics.This book is directed toward the broad audience of cell biologists, biophysicists, pharmacologists, and molecular biologists who employ classical and modern biophysical technologies or wish to expand their expertise to include such approaches. It will also interest the biomedical and biotechnology communities for biophysical characterization of drug formulations prior to FDA approval. It describes techniques in the context of important biological problems. It delineates critical steps and potential pitfalls for each method. It includes full color plates to illustrate techniques.