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1.
Midwifery ; 132: 103982, 2024 May.
Article in English | MEDLINE | ID: mdl-38579551

ABSTRACT

OBJECTIVES: This research aimed to identify the characteristics of strong midwifery leaders and explore how strong midwifery leadership may be enabled from the perspective of midwives and nurse-midwives globally. DESIGN: In this appreciative inquiry, we collected qualitative and demographic data using a cross-sectional online survey between February and July 2022. SETTING: Responses were received from many countries (n = 76), predominantly the United Kingdom (UK), Australia, the United States of America (USA), Canada, Uganda, Saudi Arabia, Tanzania, Rwanda, India, and Kenya. PARTICIPANTS: An international population (n = 429) of English-speaking, and ethnically diverse midwives (n = 211) and nurse-midwives (n = 218). MEASUREMENTS: Reflexive thematic analysis was used to make sense of the qualitative data collected. Identified characteristics of strong midwifery leadership were subsequently deductively mapped to established leadership styles and leadership theories. Demographic data were analysed using descriptive statistics. FINDINGS: Participants identified strong midwifery leaders as being mediators, dedicated to the profession, evidence-based practitioners, effective decision makers, role models, advocates, visionaries, resilient, empathetic, and compassionate. These characteristics mapped to compassionate, transformational, servant, authentic, and situational leadership styles. To enable strong midwifery leadership, participants identified a need for investment in midwives' clear professional identity, increased societal value placed upon the midwifery profession, ongoing research, professional development in leadership, interprofessional collaborations, succession planning and increased self-efficacy. KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTICE: This study contributes to understandings of trait, behavioural, situational, transformational and servant leadership theory in the context of midwifery. Investing in the development of strong midwifery leadership is essential as it has the potential to elevate the profession and improve perinatal outcomes worldwide. Findings may inform the development of both existing and new leadership models, frameworks, and validated measurement tools.


Subject(s)
Leadership , Midwifery , Humans , Cross-Sectional Studies , Adult , Surveys and Questionnaires , Female , Qualitative Research , Nurse Midwives/psychology , Nurse Midwives/statistics & numerical data , Internationality , Middle Aged , Uganda , United Kingdom , United States , Canada , Australia , Pregnancy
3.
Front Psychol ; 15: 1345619, 2024.
Article in English | MEDLINE | ID: mdl-38375107

ABSTRACT

Introduction: Understanding speech in background noise is an effortful endeavor. When acoustic challenges arise, linguistic context may help us fill in perceptual gaps. However, more knowledge is needed regarding how different types of background noise affect our ability to construct meaning from perceptually complex speech input. Additionally, there is limited evidence regarding whether perceptual complexity (e.g., informational masking) and linguistic complexity (e.g., occurrence of contextually incongruous words) interact during processing of speech material that is longer and more complex than a single sentence. Our first research objective was to determine whether comprehension of spoken sentence pairs is impacted by the informational masking from a speech masker. Our second objective was to identify whether there is an interaction between perceptual and linguistic complexity during speech processing. Methods: We used multiple measures including comprehension accuracy, reaction time, and processing effort (as indicated by task-evoked pupil response), making comparisons across three different levels of linguistic complexity in two different noise conditions. Context conditions varied by final word, with each sentence pair ending with an expected exemplar (EE), within-category violation (WV), or between-category violation (BV). Forty young adults with typical hearing performed a speech comprehension in noise task over three visits. Each participant heard sentence pairs presented in either multi-talker babble or spectrally shaped steady-state noise (SSN), with the same noise condition across all three visits. Results: We observed an effect of context but not noise on accuracy. Further, we observed an interaction of noise and context in peak pupil dilation data. Specifically, the context effect was modulated by noise type: context facilitated processing only in the more perceptually complex babble noise condition. Discussion: These findings suggest that when perceptual complexity arises, listeners make use of the linguistic context to facilitate comprehension of speech obscured by background noise. Our results extend existing accounts of speech processing in noise by demonstrating how perceptual and linguistic complexity affect our ability to engage in higher-level processes, such as construction of meaning from speech segments that are longer than a single sentence.

4.
Nano Lett ; 24(1): 89-96, 2024 Jan 10.
Article in English | MEDLINE | ID: mdl-37939013

ABSTRACT

The ability to target specific tissues and to be internalized by cells is critical for successful nanoparticle-based targeted drug delivery. Here, we combined "stealthy" rod-shaped poly(2-oxazoline) (POx) nanoparticles of different lengths with a cancer marker targeting nanobody and a fluorescent cell internalization sensor via a heat-induced living crystallization-driven self-assembly (CDSA) strategy. A significant increase in association and uptake driven by nanobody-receptor interactions was observed alongside nanorod-length-dependent kinetics. Importantly, the incorporation of the internalization sensor allowed for quantitative differentiation between cell surface association and internalization of the targeted nanorods, revealing unprecedented length-dependent cellular interactions of CDSA nanorods. This study highlights the modularity and versatility of the heat-induced CDSA process and further demonstrates the potential of POx nanorods as a modular nanomedicine platform.


Subject(s)
Nanoparticles , Nanotubes , Drug Delivery Systems , Cell Membrane
6.
Surg Open Sci ; 14: 109-113, 2023 Aug.
Article in English | MEDLINE | ID: mdl-37577254

ABSTRACT

Background: COVID-19 has dramatically affected the delivery of health care and technical assistance. This is true in Tanzania, where maternal mortality and surgical infection rates are significantly higher than in high-income countries. This paper describes lessons learned about the optimal application of in-person and virtual mentorship in the Safe Surgery 2020 program to improve the quality of surgical services in Tanzania before and after the COVID-19 pandemic. Methods: From January 2018 through December 2020, Safe Surgery 2020 supported 40 health facilities in Tanzania's Lake Zone to improve the quality of surgical care. A blended surgical mentorship model, employing both onsite and virtual mentorship, was central to the program's capacity development approach. With COVID-19, the program pivoted to full virtual mentorship. Through continuous learning and adaptation processes, including a human-centered design workshop, surveys assessing mentors' confidence with different competencies, and focus group discussions with mentors, mentees and safe surgery program staff, the program distilled the optimal use of mentorship models. Results: Developing complex surgical skills, addressing contextual considerations, problem-solving, and building trusting relationships were best suited to in-person mentorship, whereas virtual mentorship was most effective in supporting mentees' quality improvement projects, data use, case discussions, and reinforcing clinical practices. Leading successful virtual learning required enhanced facilitation skills and active engagement of health facility leadership. Conclusions: In-person and virtual mentorship offer distinct benefits and complement each other when combined. Investing more in-person mentorship at the beginning of programs allows for the establishment of trust that is foundational to effective mentorship.

7.
J Clin Pathol ; 76(7): 497-500, 2023 Jul.
Article in English | MEDLINE | ID: mdl-36849230

ABSTRACT

Fat embolism syndrome is a rare but underdiagnosed complication of sickle cell disease associated with high morbidity and mortality. It affects predominantly patients with a previously mild course of their illness and those of non-SS genotypes while there is possibly an association with infection with human parvovirus B19 (HPV B19). Here, we present the mortality rates and autopsy findings of all reported cases to date. A systematic review has revealed 99 published cases in the world literature with a mortality rate of 46%. Mortality varied greatly according to the time of reported cases with no survivors in the 1940s, 1950s or 1960s and no deaths since 2020. 35% of cases had previously undiagnosed sickle cell disease and the latter was only identified at autopsy after developing fat embolism with a fatal outcome. 20% of cases reported after 1986 tested positive for HPV B19 with an associated mortality of 63% whereas in cases that have not documented HPV B19 infection the mortality was 32%. The organs most often staining positive for fat were the kidneys, lungs, brain and heart whereas ectopic haematopoietic tissue was found in 45% of the examined lung specimens.


Subject(s)
Anemia, Sickle Cell , Embolism, Fat , Erythema Infectiosum , Papillomavirus Infections , Parvovirus B19, Human , Humans , Autopsy , Papillomavirus Infections/complications , Erythema Infectiosum/complications , Anemia, Sickle Cell/complications , Parvovirus B19, Human/genetics , Embolism, Fat/complications
9.
Front Psychol ; 13: 959638, 2022.
Article in English | MEDLINE | ID: mdl-36389464

ABSTRACT

Speech perception under adverse conditions is a multistage process involving a dynamic interplay among acoustic, cognitive, and linguistic factors. Nevertheless, prior research has primarily focused on factors within this complex system in isolation. The primary goal of the present study was to examine the interaction between processing depth and the acoustic challenge of noise and its effect on processing effort during speech perception in noise. Two tasks were used to represent different depths of processing. The speech recognition task involved repeating back a sentence after auditory presentation (higher-level processing), while the tiredness judgment task entailed a subjective judgment of whether the speaker sounded tired (lower-level processing). The secondary goal of the study was to investigate whether pupil response to alteration of dynamic pitch cues stems from difficult linguistic processing of speech content in noise or a perceptual novelty effect due to the unnatural pitch contours. Task-evoked peak pupil response from two groups of younger adult participants with typical hearing was measured in two experiments. Both tasks (speech recognition and tiredness judgment) were implemented in both experiments, and stimuli were presented with background noise in Experiment 1 and without noise in Experiment 2. Increased peak pupil dilation was associated with deeper processing (i.e., the speech recognition task), particularly in the presence of background noise. Importantly, there is a non-additive interaction between noise and task, as demonstrated by the heightened peak pupil dilation to noise in the speech recognition task as compared to in the tiredness judgment task. Additionally, peak pupil dilation data suggest dynamic pitch alteration induced an increased perceptual novelty effect rather than reflecting effortful linguistic processing of the speech content in noise. These findings extend current theories of speech perception under adverse conditions by demonstrating that the level of processing effort expended by a listener is influenced by the interaction between acoustic challenges and depth of linguistic processing. The study also provides a foundation for future work to investigate the effects of this complex interaction in clinical populations who experience both hearing and cognitive challenges.

10.
ChemSusChem ; 15(19): e202201136, 2022 Oct 10.
Article in English | MEDLINE | ID: mdl-35843909

ABSTRACT

Per- and polyfluoroalkyl substances (PFAS) are a group of recalcitrant molecules that have been used since the 1940s in a variety of applications. They are now linked to a host of negative health outcomes and are extremely resistant to degradation under environmental conditions. Currently, membrane technologies or adsorbents are used to remediate contaminated water. These techniques are either inefficient at capturing smaller PFAS molecules, have high energy demands, or result in concentrated waste that must be incinerated at high temperatures. This Review focuses on what role metal-organic frameworks (MOFs) may play in addressing the PFAS problem. Specifically, how the unique properties of MOFs such as their well-defined pore sizes, ultra-high internal surface area, and tunable surface chemistry may be a sustainable solution for PFAS contamination.


Subject(s)
Fluorocarbons , Metal-Organic Frameworks , Water
11.
BMC Pregnancy Childbirth ; 22(1): 342, 2022 Apr 20.
Article in English | MEDLINE | ID: mdl-35443652

ABSTRACT

BACKGROUND: Mental health has long fallen behind physical health in attention, funding, and action-especially in low- and middle-income countries (LMICs). It has been conspicuously absent from global reproductive, maternal, newborn, child, and adolescent health (MNCAH) programming, despite increasing awareness of the intergenerational impact of common perinatal mental disorders (CPMDs). However, the universal health coverage (UHC) movement and COVID-19 have brought mental health to the forefront, and the MNCAH community is looking to understand how to provide women effective, sustainable care at scale. To address this, MOMENTUM Country and Global Leadership (MCGL) commissioned a landscape analysis in December 2020 to assess the state of CPMDs and identify what is being done to address the burden in LMICs. METHODS: The landscape analysis (LA) used a multitiered approach. First, reviewers chose a scoping review methodology to search literature in PubMed, Google Scholar, PsychInfo, and Scopus. Titles and abstracts were reviewed before a multidisciplinary team conducted data extraction and analysis on relevant articles. Second, 44 key informant interviews and two focus group discussions were conducted with mental health, MNCAH, humanitarian, nutrition, gender-based violence (GBV), advocacy, and implementation research experts. Finally, reviewers completed a document analysis of relevant mental health policies from 19 countries. RESULTS: The LA identified risk factors for CPMDs, maternal mental health interventions and implementation strategies, and remaining knowledge gaps. Risk factors included social determinants, such as economic or gender inequality, and individual experiences, such as stillbirth. Core components identified in successful perinatal mental health (PMH) interventions at community level included stepped care, detailed context assessments, task-sharing models, and talk therapy; at health facility level, they included pre-service training on mental health, trained and supervised providers, referral and assessment processes, mental health support for providers, provision of respectful care, and linkages with GBV services. Yet, significant gaps remain in understanding how to address CPMDs. CONCLUSION: These findings illuminate an urgent need to provide CPMD prevention and care to women in LMICs. The time is long overdue to take perinatal mental health seriously. Efforts should strive to generate better evidence while implementing successful approaches to help millions of women "suffering in silence."


Subject(s)
COVID-19 , Infant, Newborn, Diseases , Mental Disorders , Adolescent , COVID-19/epidemiology , Child , Developing Countries , Female , Humans , Infant, Newborn , Mental Disorders/epidemiology , Mental Health , Parturition , Pregnancy
12.
Clin Neurol Neurosurg ; 216: 107225, 2022 05.
Article in English | MEDLINE | ID: mdl-35364371

ABSTRACT

BACKGROUND: Headache diaries are recommended for migraine management in primary care. OBJECTIVE: Determine the acceptability and use of a digital headache diary App for migraine METHODS: Evaluative prospective primary care cohort study in North of England. Part 1 was a postal survey; if responders were interested, in Part 2 participants trialled the digital N1-Headache App headache diary for 90 days, followed by survey feedback on the App's usability. RESULTS: A total of 637 out of 2189 invited patients (29%) completed the initial survey, and 32% of respondents had previously used a headache diary; 437 out of 637 patients (69%) were interested in using the App. Regression analysis showed that interested patients were those with more severe migraines that limit physical/intellectual activities, and who indicate to not know enough about their migraine. Actual registration numbers and compliance with the App was very modest; 53 out of 173 participants (23%), who ultimately activated their personal N1-Headache App account, were able to generate a personalised trigger and protector map & report. Furthermore, at the end of the 90 day App trial period there was a non-significant trend towards improvements in participants' health confidence levels. CONCLUSION: Migraine patients - particularly those with more severe and frequent migraines - show an interest in using a digital headache diary App, Ultimately, consistent daily use is very modest. The challenge is to improve App usage and compliance rates to allow interpretation of more patients' migraine trigger and/or protector patterns, and wider use amongst patients.


Subject(s)
Migraine Disorders , Mobile Applications , Humans , Prospective Studies , Cohort Studies , Medical Records , Migraine Disorders/diagnosis , Migraine Disorders/therapy , Headache , Primary Health Care
14.
J Law Med ; 28(4): 1092-1104, 2021 Dec.
Article in English | MEDLINE | ID: mdl-34907688

ABSTRACT

Influencers are ordinary people or celebrities who post regularly about their daily lives on social media and have a significant number of followers. They are normally provided with free products or services and are paid to post and tag photographs of the services or products on social media. Studies have found that some influencers provide advice concerning nutrition that is incorrect or could harm people if followed. The Australian Food and Beverages Advertising Code and the Australian Consumer Law are relevant regulatory mechanisms that apply to this situation. However, there are some serious gaps within this framework and it is not being sufficiently implemented. The authors argue that there is currently insufficient protection to the public from influencers providing misleading or deceptive nutrition advice and the consequences are serious to the public's health. This is the first article, to the authors' knowledge, to examine this issue in Australia.


Subject(s)
Social Media , Advertising , Australia , Beverages , Humans
15.
BMJ Glob Health ; 6(12)2021 12.
Article in English | MEDLINE | ID: mdl-34876458

ABSTRACT

INTRODUCTION: Despite ongoing maternal health interventions, maternal deaths in Tanzania remain high. One of the main causes of maternal mortality includes postoperative infections. Surgical site infection (SSI) rates are higher in low/middle-income countries (LMICs), such as Tanzania, compared with high-income countries. We evaluated the impact of a multicomponent safe surgery intervention in Tanzania, hypothesising it would (1) increase adherence to safety practices, such as the WHO Surgical Safety Checklist (SSC), (2) reduce SSI rates following caesarean section (CS) and (3) reduce CS-related perioperative mortality rates (POMRs). METHODS: We conducted a pre-cross-sectional/post-cross-sectional study design to evaluate WHO SSC utilisation, SSI rates and CS-related POMR before and 18 months after implementation. Our interventions included training of inter-professional surgical teams, promoting use of the WHO SSC and introducing an infection prevention (IP) bundle for all CS patients. We assessed use of WHO SSC and SSI rates through random sampling of 279 individual CS patient files. We reviewed registers and ward round reports to obtain the number of CS performed and CS-related deaths. We compared proportions of individuals with a characteristic of interest during pre-implementation and post implementation using the two-proportion z-test at p≤0.05 using STATA V.15. RESULTS: The SSC utilisation rate for CS increased from 3.7% (5 out of 136) to 95.1% (136 out of 143) with p<0.001. Likewise, the proportion of women with SSI after CS reduced from 14% during baseline to 1% (p=0.002). The change in SSI rate after the implementation of the safe surgery interventions is statistically significant (p<0.001). The CS-related POMR decreased by 38.5% (p=0.6) after the implementation of safe surgery interventions. CONCLUSION: Our findings show that our intervention led to improved utilisation of the WHO SSC, reduced SSIs and a drop in CS-related POMR. We recommend replication of the interventions in other LMICs.


Subject(s)
Cesarean Section , Surgical Wound Infection , Cesarean Section/adverse effects , Cross-Sectional Studies , Female , Humans , Maternal Mortality , Pregnancy , Surgical Wound Infection/epidemiology , Surgical Wound Infection/etiology , Surgical Wound Infection/prevention & control , Tanzania/epidemiology
16.
Hum Resour Health ; 19(1): 115, 2021 09 23.
Article in English | MEDLINE | ID: mdl-34551758

ABSTRACT

BACKGROUND: Safe, high-quality surgical care in many African countries is a critical need. Challenges include availability of surgical providers, improving quality of care, and building workforce capacity. Despite growing evidence that mentoring is effective in African healthcare settings, less is known about its role in surgery. We examined a multimodal approach to mentorship as part of a safe surgery intervention (Safe Surgery 2020) to improve surgical quality. Our goal was to distill lessons for policy makers, intervention designers, and practitioners on key elements of a successful surgical mentorship program. METHODS: We used a convergent, mixed-methods design to examine the experiences of mentees, mentors, and facility leaders with mentorship at 10 health facilities in Tanzania's Lake Zone. A multidisciplinary team of mentors worked with surgical providers over 17 months using in-person mentorship, telementoring, and WhatsApp. We conducted surveys, in-depth interviews, and focus groups to capture data in four categories: (1) satisfaction with mentorship; (2) perceived impact; (3) elements of a successful mentoring program; and (4) challenges to implementing mentorship. We analyzed quantitative data using frequency analysis and qualitative data using the constant comparison method. Recurrent and unifying concepts were identified through merging the qualitative and quantitative data. RESULTS: Overall, 96% of mentees experienced the intervention as positive, 88% were satisfied, and 100% supported continuing the intervention in the future. Mentees, mentors, and facility leaders perceived improvements in surgical practice, the surgical ecosystem, and in reducing postsurgical infections. Several themes related to the intervention's success emerged: (1) the intervention's design, including its multimodality, side-by-side mentorship, and standardization of practices; (2) the mentee-mentor relationship, including a friendly, safe, non-hierarchical, team relationship, as well as mentors' understanding of the local context; and (3) mentorship characteristics, including non-judgmental feedback, experience, and accessibility. Challenges included resistance to change, shortage of providers, mentorship dose, and logistics. CONCLUSIONS: Our study suggests a multimodal mentorship approach is promising in building the capacity of surgical providers. By distilling the experiences of the mentees, mentors, and facility leaders, our lessons provide a foundation for future efforts to establish effective surgical mentorship programs that build provider capacity and ultimately improve surgical quality.


Subject(s)
Mentoring , Mentors , Ecosystem , Humans , Program Evaluation , Tanzania
17.
Arch Osteoporos ; 16(1): 99, 2021 06 19.
Article in English | MEDLINE | ID: mdl-34148132

ABSTRACT

There is limited evidence from 11 randomised controlled trials on the effect of rehabilitation interventions which incorporate outdoor mobility on ambulatory ability and/or self-efficacy after hip fracture. Outdoor mobility should be central (not peripheral) to future intervention studies targeting improvements in ambulatory ability. PURPOSE: Determine the extent to which outdoor mobility is incorporated into rehabilitation interventions after hip fracture. Synthesise the evidence for the effectiveness of these interventions on ambulatory ability and falls-related self-efficacy. METHODS: Systematic search of MEDLINE, Embase, PsychInfo, CINAHL, PEDro and OpenGrey for published and unpublished randomised controlled trials (RCTs) of community-based rehabilitation interventions incorporating outdoor mobility after hip fracture from database inception to January 2021. Exclusion of protocols, pilot/feasibility studies, secondary analyses of RCTs, nonrandomised and non-English language studies. Duplicate screening for eligibility, risk of bias, and data extraction sample. Random effects meta-analysis. Statistical heterogeneity with inconsistency-value (I2). RESULTS: RCTs (n = 11) provided limited detail on target or achieved outdoor mobility intervention components. There was conflicting evidence from 2 RCTs for the effect on outdoor walking ability at 1-3 months (risk difference 0.19; 95% confidence intervals (CI): 0.21, 0.58; I2 = 92%), no effect on walking endurance at intervention end (standardised mean difference 0.05; 95% CI: - 0.26, 0.35; I2 = 36%); and suggestive (CI crosses null) of a small effect on self-efficacy at 1-3 months (standardised mean difference 0.25; 95% CI: - 0.29, 0.78; I2 = 87%) compared with routine care/sham intervention. CONCLUSION: It was not possible to attribute any benefit observed to an outdoor mobility intervention component due to poor reporting of target or achieved outdoor mobility and/or quality of the underlying evidence. Given the low proportion of patients recovering outdoor mobility after hip fracture, future research on interventions with outdoor mobility as a central component is warranted. TRIAL REGISTRATION: PROSPERO registration: CRD42021236541.


Subject(s)
Accidental Falls , Hip Fractures , Humans , Self Efficacy , Walking
18.
Int J Qual Health Care ; 33(2)2021 Jun 29.
Article in English | MEDLINE | ID: mdl-34057187

ABSTRACT

BACKGROUND: Evidence-based strategies for improving surgical quality and patient outcomes in low-resource settings are a priority. OBJECTIVE: To evaluate the impact of a multicomponent safe surgery intervention (Safe Surgery 2020) on (1) adherence to safety practices, teamwork and communication, and documentation in patient files, and (2) incidence of maternal sepsis, postoperative sepsis, and surgical site infection. METHODS: We conducted a prospective, longitudinal study in 10 intervention and 10 control facilities in Tanzania's Lake Zone, across a 3-month pre-intervention period in 2018 and 3-month post-intervention period in 2019. SS2020 is a multicomponent intervention to support four surgical quality areas: (i) leadership and teamwork, (ii) evidence-based surgery, anesthesia and equipment sterilization practices, (iii) data completeness and (iv) infrastructure. Surgical team members received training and mentorship, and each facility received up to a $10 000 infrastructure grant. Inpatients undergoing major surgery and postpartum women were followed during their stay up to 30 days. We assessed adherence to 14 safety and teamwork and communication measures through direct observation in the operating room. We identified maternal sepsis (vaginal or cesarean delivery), postoperative sepsis and SSIs prospectively through daily surveillance and assessed medical record completeness retrospectively through chart review. We compared changes in surgical quality outcomes between intervention and control facilities using difference-in-differences analyses to determine areas of impact. RESULTS: Safety practices improved significantly by an additional 20.5% (95% confidence interval (CI), 7.2-33.7%; P = 0.003) and teamwork and communication conversations by 33.3% (95% CI, 5.7-60.8%; P = 0.02) in intervention facilities compared to control facilities. Maternal sepsis rates reduced significantly by 1% (95% CI, 0.1-1.9%; P = 0.02). Documentation completeness improved by 41.8% (95% CI, 27.4-56.1%; P < 0.001) for sepsis and 22.3% (95% CI, 4.7-39.8%; P = 0.01) for SSIs. CONCLUSION: Our findings demonstrate the benefit of the SS2020 approach. Improvement was observed in adherence to safety practices, teamwork and communication, and data quality, and there was a reduction in maternal sepsis rates. Our results support the emerging evidence that improving surgical quality in a low-resource setting requires a focus on the surgical system and culture. Investigation in diverse contexts is necessary to confirm and generalize our results and to understand how to adapt the intervention for different settings. Further work is also necessary to assess the long-term effect and sustainability of such interventions.


Subject(s)
Operating Rooms , Female , Humans , Longitudinal Studies , Pregnancy , Prospective Studies , Retrospective Studies , Tanzania
19.
BMJ Qual Saf ; 30(12): 937-949, 2021 12.
Article in English | MEDLINE | ID: mdl-33547219

ABSTRACT

BACKGROUND: Evidence on heterogeneity in outcomes of surgical quality interventions in low-income and middle-income countries is limited. We explored factors driving performance in the Safe Surgery 2020 intervention in Tanzania's Lake Zone to distil implementation lessons for low-resource settings. METHODS: We identified higher (n=3) and lower (n=3) performers from quantitative data on improvement from 14 safety and teamwork and communication indicators at 0 and 12 months from 10 intervention facilities, using a positive deviance framework. From 72 key informant interviews with surgical providers across facilities at 1, 6 and 12 months, we used a grounded theory approach to identify practices of higher and lower performers. RESULTS: Performance experiences of higher and lower performers differed on the following themes: (1) preintervention context, (2) engagement with Safe Surgery 2020 interventions, (3) teamwork and communication orientation, (4) collective learning orientation, (5) role of leadership, and (6) perceived impact of Safe Surgery 2020 and beyond. Higher performers had a culture of teamwork which helped them capitalise on Safe Surgery 2020 to improve surgical ecosystems holistically on safety practices, teamwork and communication. Lower performers prioritised overhauling safety practices and began considering organisational cultural changes much later. Thus, while also improving, lower performers prioritised different goals and trailed higher performers on the change continuum. CONCLUSION: Future interventions should be tailored to facility context and invest in strengthening teamwork, communication and collective learning and facilitate leadership engagement to build a receptive climate for successful implementation of safe surgery interventions.


Subject(s)
Developing Countries , Ecosystem , Health Facilities , Humans , Leadership , Poverty
20.
J Colloid Interface Sci ; 587: 64-78, 2021 Apr.
Article in English | MEDLINE | ID: mdl-33370664

ABSTRACT

Many applications of nanomedicines depend on the therapeutic gaining access to the interior of cells. As most proteins and nanoparticles are taken up by endocytosis, determining the properties of nanoparticles that govern uptake is essential. In this review, we examine the current approaches for measuring the cellular uptake of nanoparticles and proteins. We explore the techniques distinguishing material internalized by the cell from material bound to the surface, with a particular focus on recent advances in sensor technology. We also highlight the requirements for quantifying internalization and the pitfalls that can limit data analysis. Finally, we explore the importance of understanding recycling of internalized material back to the cell surface, and the methods that can be used to quantify this. Delivering cargo to specific subcellular locations first requires uptake. Robust techniques that can quantify this event are the critical for developing the next generation of smart, targeted, therapeutic nanoparticles.


Subject(s)
Nanoparticles , Biological Transport , Endocytosis , Nanomedicine , Proteins
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