First Measurement of η Meson Production in Neutrino Interactions on Argon with MicroBooNE

We present a measurement of η production from neutrino interactions on argon with the MicroBooNE detector. The modeling of resonant neutrino interactions on argon is a critical aspect of the neutrino oscillation physics program being carried out by the DUNE and Short Baseline Neutrino programs. η production in neutrino interactions provides a powerful new probe of resonant interactions, complementary to pion channels, and is particularly suited to the study of higher-order resonances beyond the Δ(1232). We measure a flux-integrated cross section for neutrino-induced η production on argon of 3.22±0.84(stat)±0.86(syst) 10^{-41}  cm^{2}/nucleon. By demonstrating the successful reconstruction of the two photons resulting from η production, this analysis enables a novel calibration technique for electromagnetic showers in GeV accelerator neutrino experiments.

Therapeutic Supramolecular Polymers: Designs and Applications

The self-assembly of low-molecular-weight building motifs into supramolecular polymers has unlocked a new realm of materials with distinct properties and tremendous potential for advancing medical practices. Leveraging the reversible and dynamic nature of non-covalent interactions, these supramolecular polymers exhibit inherent responsiveness to their microenvironment, physiological cues, and biomolecular signals, making them uniquely suited for diverse biomedical applications. In this review, we intend to explore the principles of design, synthesis methodologies, and strategic developments that underlie the creation of supramolecular polymers as carriers for therapeutics, contributing to the treatment and prevention of a spectrum of human diseases. We delve into the principles underlying monomer design, emphasizing the pivotal role of non-covalent interactions, directionality, and reversibility. Moreover, we explore the intricate balance between thermodynamics and kinetics in supramolecular polymerization, illuminating strategies for achieving controlled sizes and distributions. Categorically, we examine their exciting biomedical applications: individual polymers as discrete carriers for therapeutics, delving into their interactions with cells, and in vivo dynamics; and supramolecular polymeric hydrogels as injectable depots, with a focus on their roles in cancer immunotherapy, sustained drug release, and regenerative medicine. As the field continues to burgeon, harnessing the unique attributes of therapeutic supramolecular polymers holds the promise of transformative impacts across the biomedical landscape.

First Double-Differential Measurement of Kinematic Imbalance in Neutrino Interactions with the MicroBooNE Detector

We report the first measurement of flux-integrated double-differential quasielasticlike neutrino-argon cross sections, which have been made using the Booster Neutrino Beam and the MicroBooNE detector at Fermi National Accelerator Laboratory. The data are presented as a function of kinematic imbalance variables which are sensitive to nuclear ground-state distributions and hadronic reinteraction processes. We find that the measured cross sections in different phase-space regions are sensitive to different nuclear effects. Therefore, they enable the impact of specific nuclear effects on the neutrino-nucleus interaction to be isolated more completely than was possible using previous single-differential cross section measurements. Our results provide precision data to help test and improve neutrino-nucleus interaction models. They further support ongoing neutrino-oscillation studies by establishing phase-space regions where precise reaction modeling has already been achieved.

First Measurement of Quasielastic Λ Baryon Production in Muon Antineutrino Interactions in the MicroBooNE Detector

We present the first measurement of the cross section of Cabibbo-suppressed Λ baryon production, using data collected with the MicroBooNE detector when exposed to the neutrinos from the main injector beam at the Fermi National Accelerator Laboratory. The data analyzed correspond to 2.2×10^{20} protons on target running in neutrino mode, and 4.9×10^{20} protons on target running in anti-neutrino mode. An automated selection is combined with hand scanning, with the former identifying five candidate Λ production events when the signal was unblinded, consistent with the GENIE prediction of 5.3±1.1 events. Several scanners were employed, selecting between three and five events, compared with a prediction from a blinded Monte Carlo simulation study of 3.7±1.0 events. Restricting the phase space to only include Λ baryons that decay above MicroBooNE's detection thresholds, we obtain a flux averaged cross section of 2.0_{-1.7}^{+2.2}×10^{-40}  cm^{2}/Ar, where statistical and systematic uncertainties are combined.

The fast camera (Fastcam) imaging diagnostic systems on the DIII-D tokamak

Two camera systems are installed on the DIII-D tokamak at the toroidal positions of 90° (90° system) and 225° (225° system), respectively. The cameras have two types of relay optics, namely, a coherent optical fiber bundle and a periscope system. The periscope system provides absolute intensity calibration stability while sacrificing resolution (10 lp/mm), while the fiber system provides high resolution (16 lp/mm) while sacrificing calibration stability. The periscope is available only for the 90° system. The optics of the 225° system were designed for view stability, repeatability, and easy maintenance. The cameras are located inside optimized neutron, x ray and magnetic shielding in order to reduce electronics damage, reboots, and magnetic and neutron interference, increasing the overall system reliability. An automated filter wheel, providing remote filter change, allows for remote wavelength selection. A software suite automates camera acquisition and data storage, allowing for remote operation and reduced operator involvement. System metadata is used to streamline the data analysis workflow, particularly for intensity calibration. The spatial calibration uses multiple observable wall features, resulting in a reconstruction accuracy ≤2 cm.

A precise and rapid early pregnancy test: Development of a novel and fully automated electrochemical point-of-care biosensor for human urine samples

Human chorionic gonadotropin (hCG), a glycoprotein hormone secreted from the placenta, is an important biomarker for pregnancy. In this study, we designed a precise, rapid and fully automatic device with an electrochemical point-of-care biosensor capable of quantitative hCG detection from human urine samples for early pregnancy detection. Gold and Ag/AgCl electrodes, whose structure with optimum isopotential region and current density, were simulated using COMSOL Multiphysics® software and custom-made from Flex Medical. The sensing surface was fabricated with DSP self-assembled monolayers (SAMs) and covalently immobilized anti-hCG-beta antibody. The detection method involved a sandwich assay using anti-hCG alpha-HRP. Based on an automated agitation design implemented in our device, the surface reaction rate is significantly improved comparing to routinely performed sandwich assays, and therefore a rapid detection of very low concentration can be achieved. Electrochemical impedance spectroscopy (EIS) and chronoamperometry (CA) measurements were used to characterize the immobilization of the antibodies and to determine the sensor activities respectively. The sensors displayed a limit of detection (LOD) of 2.17 mIU/ml within established clinical hCG levels for early detection of pregnancy. They responded very well to hCG, but not to luteinizing hormone (LH), which has a high degree of cross-reactivity with hCG. The results showed that the immunosensor has high specificity, good reproducibility, and long-term stability for the detection of hCG in urine samples.

First Constraints on Light Sterile Neutrino Oscillations from Combined Appearance and Disappearance Searches with the MicroBooNE Detector

We present a search for eV-scale sterile neutrino oscillations in the MicroBooNE liquid argon detector, simultaneously considering all possible appearance and disappearance effects within the 3+1 active-to-sterile neutrino oscillation framework. We analyze the neutrino candidate events for the recent measurements of charged-current ν_{e} and ν_{μ} interactions in the MicroBooNE detector, using data corresponding to an exposure of 6.37×10^{20} protons on target from the Fermilab booster neutrino beam. We observe no evidence of light sterile neutrino oscillations and derive exclusion contours at the 95% confidence level in the plane of the mass-squared splitting Δm_{41}^{2} and the sterile neutrino mixing angles θ_{μe} and θ_{ee}, excluding part of the parameter space allowed by experimental anomalies. Cancellation of ν_{e} appearance and ν_{e} disappearance effects due to the full 3+1 treatment of the analysis leads to a degeneracy when determining the oscillation parameters, which is discussed in this Letter and will be addressed by future analyses.

Translation, cultural adaptation, and validation of the mindful self-care scale among Brazilian palliative care providers

OBJECTIVE

This study aimed to translate, culturally adapt, and validate the Mindful Self-Care Scale (MSCS, 33-item) in a Brazilian hospice and palliative care context.

METHOD

This was a cross-sectional study with a sample of 336 Brazilian hospice and palliative care providers. The European Organisation for Research and Treatment of Cancer - Quality of Life Group Translation Procedure protocol was used for the translation and the cultural adaptation process. Psychometric properties supporting the use of the MSCS were examined through confirmatory factor analysis (CFA) and correlation analysis with other instruments to assess congruence to related constructs (resilience and self-compassion). The reliability of the Brazilian-Portuguese version of the MSCS was assessed using Cronbach's α and composite reliability coefficients.

RESULTS

The six-factor (33-item) model showed a good fit to the data, with satisfactory reliability indices and adequate representation of the scale's internal structure. Further validity is evidenced in the significant, positive correlations found between the MSCS, and similar well-being constructs, namely the Self-Compassion and Resilience scales.

SIGNIFICANCE OF RESULTS

The findings reveal that the MSCS (33-item) is a valid, reliable, and culturally appropriate instrument to examine the practice of mindful self-care by hospice and palliative care providers in Brazil. More broadly, it represents a promising instrument for future research into self-care practices and well-being among Brazilian healthcare providers.

Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC

DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6  ×  6  ×  6 m 3 liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019-2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and scintillation light. The scintillation light signal in these detectors can provide the trigger for non-beam events. In addition, it adds precise timing capabilities and improves the calorimetry measurements. In ProtoDUNE-DP, scintillation and electroluminescence light produced by cosmic muons in the LArTPC is collected by photomultiplier tubes placed up to 7 m away from the ionizing track. In this paper, the ProtoDUNE-DP photon detection system performance is evaluated with a particular focus on the different wavelength shifters, such as PEN and TPB, and the use of Xe-doped LAr, considering its future use in giant LArTPCs. The scintillation light production and propagation processes are analyzed and a comparison of simulation to data is performed, improving understanding of the liquid argon properties.

Mindful Self-Care, Self-Compassion, and Resilience Among Palliative Care Providers During the COVID-19 Pandemic

CONTEXT

Given the adverse impact of COVID-19 on the wellbeing of palliative care providers, there is a growing need to better understand protective variables, such as self-care, mindfulness and self-compassion, as they relate to resilience.

OBJECTIVE

To investigate mindful self-care, self-compassion, and resilience as reported by palliative care providers during the COVID-19 pandemic.

METHODS

Descriptive, cross-sectional survey. An electronic questionnaire captured data from validated instruments measuring each study variable, as well as participant demographics and perceived impacts of COVID-19 on professional quality of life.

RESULTS

Positive, statistically significant correlations were found between mindful self-care, self-compassion, and resilience. These variables were also associated with greater satisfaction with professional life and perceived lessened impairment in physical and/or mental health due to a decrease in self-care activities stemming from altered routines during COVID-19. Those with higher resilience had worked in palliative care longer and also reported higher levels of self-compassion and mindful self-care, explaining 50% of variance. Self-compassion, satisfaction with professional life, and changes in self-care routine due to professional activities in the pandemic explained 44.3% of variance in mindful self-care. Self-compassion, female gender, and working as a frontline responder to the COVID-19 pandemic accounted for 35% variance in resilience levels.

CONCLUSIONS

Results from this study extend the currently limited knowledge of self-care, mindfulness and self-compassion, as protective variables related to resilience in palliative care providers during the COVID-19 pandemic. Further longitudinal studies into causal effects on health and wellbeing over time are needed.

Search for an Excess of Electron Neutrino Interactions in MicroBooNE Using Multiple Final-State Topologies

We present a measurement of ν_{e} interactions from the Fermilab Booster Neutrino Beam using the MicroBooNE liquid argon time projection chamber to address the nature of the excess of low energy interactions observed by the MiniBooNE Collaboration. Three independent ν_{e} searches are performed across multiple single electron final states, including an exclusive search for two-body scattering events with a single proton, a semi-inclusive search for pionless events, and a fully inclusive search for events containing all hadronic final states. With differing signal topologies, statistics, backgrounds, reconstruction algorithms, and analysis approaches, the results are found to be either consistent with or modestly lower than the nominal ν_{e} rate expectations from the Booster Neutrino Beam and no excess of ν_{e} events is observed.

Is Supervised Pastoral Education (SPE) "Substantially Equivalent" to a Recognized Psychotherapy Program in Ontario?

After completing their Supervised Pastoral Education units provided by the Canadian Association for Spiritual Care, two soon-to-be-certified Spiritual Care Practitioners applied to the College of Registered Psychotherapists of Ontario. Both were rejected because their Supervised Pastoral Education program was not deemed to be "substantially equivalent" to a recognized psychotherapy program. This came as a surprise since similarly qualified Canadian Association for Spiritual Care Practitioners in Ontario are also members of the College of Registered Psychotherapists of Ontario through a process called "grandparenting." Using the 10 characteristics of a College of Registered Psychotherapists of Ontario recognized program, this paper examines Canadian Association for Spiritual Care's SPE program in detail, showing how closely it aligns with the College of Registered Psychotherapists of Ontario's description of an equivalent psychotherapy program. I conclude by suggesting the College of Registered Psychotherapists of Ontario should embrace Supervised Pastoral Education as an equivalent program and grant memberships, not just to those grand parented in, but to future Canadian Association for Spiritual Care Practitioners.

First Measurement of Energy-Dependent Inclusive Muon Neutrino Charged-Current Cross Sections on Argon with the MicroBooNE Detector

We report a measurement of the energy-dependent total charged-current cross section σ(E_{ν}) for inclusive muon neutrinos scattering on argon, as well as measurements of flux-averaged differential cross sections as a function of muon energy and hadronic energy transfer (ν). Data corresponding to 5.3×10^{19} protons on target of exposure were collected using the MicroBooNE liquid argon time projection chamber located in the Fermilab booster neutrino beam with a mean neutrino energy of approximately 0.8 GeV. The mapping between the true neutrino energy E_{ν} and reconstructed neutrino energy E_{ν}^{rec} and between the energy transfer ν and reconstructed hadronic energy E_{had}^{rec} are validated by comparing the data and Monte Carlo (MC) predictions. In particular, the modeling of the missing hadronic energy and its associated uncertainties are verified by a new method that compares the E_{had}^{rec} distributions between data and a MC prediction after constraining the reconstructed muon kinematic distributions, energy, and polar angle to those of data. The success of this validation gives confidence that the missing energy in the MicroBooNE detector is well modeled and underpins first-time measurements of both the total cross section σ(E_{ν}) and the differential cross section dσ/dν on argon.

Search for Neutrino-Induced Neutral-Current Δ Radiative Decay in MicroBooNE and a First Test of the MiniBooNE Low Energy Excess under a Single-Photon Hypothesis

We report results from a search for neutrino-induced neutral current (NC) resonant Δ(1232) baryon production followed by Δ radiative decay, with a ⟨0.8⟩  GeV neutrino beam. Data corresponding to MicroBooNE's first three years of operations (6.80×10^{20} protons on target) are used to select single-photon events with one or zero protons and without charged leptons in the final state (1γ1p and 1γ0p, respectively). The background is constrained via an in situ high-purity measurement of NC π^{0} events, made possible via dedicated 2γ1p and 2γ0p selections. A total of 16 and 153 events are observed for the 1γ1p and 1γ0p selections, respectively, compared to a constrained background prediction of 20.5±3.65(syst) and 145.1±13.8(syst) events. The data lead to a bound on an anomalous enhancement of the normalization of NC Δ radiative decay of less than 2.3 times the predicted nominal rate for this process at the 90% confidence level (C.L.). The measurement disfavors a candidate photon interpretation of the MiniBooNE low-energy excess as a factor of 3.18 times the nominal NC Δ radiative decay rate at the 94.8% C.L., in favor of the nominal prediction, and represents a greater than 50-fold improvement over the world's best limit on single-photon production in NC interactions in the sub-GeV neutrino energy range.

Ramucirumab and irinotecan in patients with previously treated gastroesophageal adenocarcinoma: Final analysis of a phase II trial

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Background: Ramucirumab, a humanized monoclonal antibody targeting VEGFR2, is used for treatment of metastatic gastroesophageal adenocarcinoma after disease progression on first-line chemotherapy. Superior survival outcome is expected when combined with paclitaxel. However, many patients suffer from chemotherapy-induced peripheral neuropathy after oxaliplatin-containing first-line treatment and are unable to tolerate paclitaxel. Irinotecan has shown survival benefit as a single agent or in combination with other agents for treating gastroesophageal cancer, but has not been evaluated with ramucirumab. We hypothesized that the combination regimen of irinotecan and ramucirumab administered as second-line treatment for advanced gastroesophageal adenocarcinoma will be better tolerated than ramucirumab and paclitaxel with similar clinical efficacy. Methods: The primary objective of this multi-institutional, single-arm phase 2 clinical trial is to determine the progression-free survival (PFS) after disease progression on up to one line of cytotoxic chemotherapy. Secondary objectives include objective response rate, overall survival, time to progression, and clinical benefit; and to evaluate toxicity and tolerability. Patient-derived xenograft and organoid models generated in a subgroup of patients. Investigation of blood-based angiome profiling and cell-free DNA are planned. Patients received 8 mg/kg ramucirumab with 180 mg/m2 irinotecan IV every 14 days. A sample of 40 achieves 85.7% power at a one-sided significance level of 5% to detect a median PFS of 4 months compared to historic control of 2.5 months assuming the accrual time of 12 months and additional follow-up of 12 months and using a one-sample log rank test. NCT03141034. Results: Forty patients were enrolled from four institutions from December 2017 through May 2021. All patients received platinum-based chemotherapy prior to enrollment, 8 patients had HER2 positive disease, and 6 patients had received an immune checkpoint inhibitor. As of September 2021, median follow up time was 7.7 months. Median PFS was 4.6 months (95% CI 2.7 – 5.4). Of 31 patients evaluable for response, 9 patients (29%) had objective responses (1 complete response, 8 partial responses) and 5 patients (16%) had stable disease greater than 6 months. Diarrhea, nausea, vomiting, and neutropenia were common adverse events; no G3/4 neuropathy was reported. Patient-derived organoid and xenograft models were generated from 9 patient samples, treated in vitro to correlate with each patient’s disease response. Conclusions: Ramucirumab and irinotecan appears to be effective and well-tolerated in patients with previously treated gastroesophageal adenocarcinoma. This regimen is now part of standard guidelines and could be a preferred option for patients after disease progression on first-line chemotherapy. Clinical trial information: NCT03141034.

Access to palliative care reimagined

Access to palliative care is commonly considered as solely a health services challenge rather than a community challenge. Successive healthcare reports continue to pose the question of access and its solution in terms that ask what a service can do rather than what an ally a service can become. However, the question is not what can we do for disadvantaged communities, but rather, what can we do together with them as fellow providers of palliative care. The first part of this article reviews the most common recommendations offered for increasing access to palliative care. The second part advocates an alternative way to address this challenge by employing the key practice methods of a new public health / health promotion approach to palliative care.

Search for a Higgs Portal Scalar Decaying to Electron-Positron Pairs in the MicroBooNE Detector

We present a search for the decays of a neutral scalar boson produced by kaons decaying at rest, in the context of the Higgs portal model, using the MicroBooNE detector. We analyze data triggered in time with the Fermilab NuMI neutrino beam spill, with an exposure of 1.93×10^{20} protons on target. We look for monoenergetic scalars that come from the direction of the NuMI hadron absorber, at a distance of 100 m from the detector, and decay to electron-positron pairs. We observe one candidate event, with a standard model background prediction of 1.9±0.8. We set an upper limit on the scalar-Higgs mixing angle of θ<(3.3-4.6)×10^{-4} at the 95% confidence level for scalar boson masses in the range (100-200)  MeV/c^{2}. We exclude, at the 95% confidence level, the remaining model parameters required to explain the central value of a possible excess of K_{L}^{0}→π^{0}νν[over ¯] decays reported by the KOTO collaboration. We also provide a model-independent limit on a new boson X produced in K→πX decays and decaying to e^{+}e^{-}.

Palliative care providers' use of digital health and perspectives on technological innovation: a national study

Background

While the need for digital health capability and technological innovation in palliative care services is growing rapidly, relatively little is known about the current uptake and views of individual palliative care practitioners. This study aims to explore palliative care practitioners’ current use of and perspectives on digital health innovation in palliative care.

Methods

A descriptive cross-sectional survey with a web-based questionnaire was used. Participants were multidisciplinary palliative care practitioners in Australia.

Results

Surveys were returned by 170 medical, nursing, and allied health practitioners working in palliative care. Most respondents reported using a variety of digital health technology associated with clinical information systems, mobile devices, SMS text messaging, teleconferencing, and Wi-Fi. These technologies were used for the purpose of communicating with other health professionals, accessing web-based or mobile health palliative care resources, collecting or managing patient data, and providing information or education. However, few reported electronic access to patients’ advance care planning documentation or could update these data. Respondents were moderately confident in their ability to use digital health, held positive beliefs that palliative care could be enhanced through digital health, and were generally supportive of ongoing innovation through digitally-enable models of care. Palliative care providers would most like to see digital health innovations in the areas of client health records, telehealth, and personal health tracking.

Conclusion

This is the first national study of digital health in Australian palliative care providers. It contributes new knowledge in this important area of palliative care practice to guide policy and education, whilst informing future directions for research.

Prospects for beyond the Standard Model physics searches at the Deep Underground Neutrino Experiment: DUNE Collaboration

The Deep Underground Neutrino Experiment (DUNE) will be a powerful tool for a variety of physics topics. The high-intensity proton beams provide a large neutrino flux, sampled by a near detector system consisting of a combination of capable precision detectors, and by the massive far detector system located deep underground. This configuration sets up DUNE as a machine for discovery, as it enables opportunities not only to perform precision neutrino measurements that may uncover deviations from the present three-flavor mixing paradigm, but also to discover new particles and unveil new interactions and symmetries beyond those predicted in the Standard Model (SM). Of the many potential beyond the Standard Model (BSM) topics DUNE will probe, this paper presents a selection of studies quantifying DUNE's sensitivities to sterile neutrino mixing, heavy neutral leptons, non-standard interactions, CPT symmetry violation, Lorentz invariance violation, neutrino trident production, dark matter from both beam induced and cosmogenic sources, baryon number violation, and other new physics topics that complement those at high-energy colliders and significantly extend the present reach.

Self-compassion In Hospice and Palliative Care: A Systematic Integrative Review

Those involved with hospice and palliative care, including nurses, will inevitably experience or be exposed to suffering. Self-compassion represents a personal resource and support for self-care, ensuring that needs are not neglected particularly during times of suffering. However, the empirical evidence for self-compassion in hospice and palliative care is yet to be reviewed systematically. To synthesize the evidence on self-compassion in hospice and palliative care patients, their relatives, and health care professionals, we conducted a systematic integrative review using the Preferred Reporting Items for Systematic Reviews and Meta-analyses statement. For patients, self-compassion was associated with reduced stress, anxiety, shame, depressive symptoms, fear of cancer recurrence, and loneliness. It was also associated with increased social capital, self-soothing, mindfulness, compassion, causal reasoning ability, psychosocial and spiritual well-being, legacy, courage, and commitment. For health care professionals, self-compassion was associated with increased capacity for self-care, mindfulness, and professional quality of life and a decrease in perceived burnout risk and secondary traumatic stress. No studies were found to involve patients' relatives. Self-compassion seems to be an important resource in hospice and palliative care. It supports self-care and alleviates suffering by improving the social, psychosocial, and spiritual well-being of patients and health care professionals, including hospice and palliative care nurses. Future research should include care patients' relatives.

The impact of public health palliative care interventions on health system outcomes: A systematic review

BACKGROUND

Public health palliative care interventions are increasingly implemented, with growing recognition of the importance of building evidence to support their utility in end-of-life care. Previous efforts have focused on community outcomes.

AIM

To examine the impact of public health palliative care on patterns of health service use at the end of life (primary) and explore which outcomes are being measured within this field of research (secondary).

DESIGN

Systematic review of studies reporting qualitative and quantitative data, analysed with a narrative synthesis method.

DATA SOURCES

A systematic review conducted and reported according to the Preferred Reporting Items for Systematic Reviews and Meta Analyses guideline was undertaken using six electronic databases (MEDLINE, CINAHL, EMBASE, PsycINFO, INFORMIT and COCHRANE) up to February 2020.

RESULTS

Searches yielded 2622 unique titles screened for eligibility, resulting in 35 studies measuring outcomes from a public health palliative care approach. Five (14%) studies assessed health system outcomes, and three reported some mixed evidence of impact, including reduced hospital emergency admissions, hospital bed days, hospital costs and increased home deaths. Most studies (86%) instead reported on conceptual (49%), knowledge (40%), programme participation (37%) and/or individual health outcomes (29%).

CONCLUSION

The impact of public health palliative care is an evolving area of empirical inquiry with currently only limited evidence that it improves healthcare utilisation outcomes at the end of life, and limited focus on measurement of these outcomes. Further empirical studies are needed to support the reorientation of health services, which remains an important component in realising 'whole of system change' to bring about quality end-of-life care for all.

Quality of life, self-compassion and mindfulness in cancer patients undergoing chemotherapy: A cross-sectional study

PURPOSE

We investigated whether self-compassion and mindfulness are associated with quality of life in patients undergoing antineoplastic chemotherapy.

METHODS

A cross-sectional survey of 183 patients (100% response rate) undergoing chemotherapy was conducted at a Brazilian hospital between August and December 2019. A questionnaire was administered by the research team, collecting clinical and demographic data as well as responses to the Self-compassion scale, Mindful Attention Awareness Scale, and the Functional Assessment of Cancer Therapy-General instrument. Data analysis comprised descriptive and inferential statistics, with multiple regression and Spearman's rank-order correlation testing for associations between quality of life, self-compassion and mindfulness.

RESULTS

Mean scores for the study variables were 4.23 (SD = 0.63) for self-compassion, 69.05 (SD = 13.27) for mindfulness, and 80.25 (SD = 12.62) for quality of life. Significant positive correlations were observed between quality of life and self-compassion (r = 0.466, p < 0.001), as well as for quality of life and mindfulness (r = 0.325, p < 0.001). Higher levels of self-compassion and mindfulness were associated with better quality of life.

CONCLUSIONS

This research suggests merit in further studies of self-compassion and mindfulness either as predictor variables or for direct causal effect on quality of life in cancer patients undergoing antineoplastic chemotherapy. We recommend that future studies incorporate an intervention and experimental design.

First Measurement of Differential Charged Current Quasielasticlike ν_{μ}-Argon Scattering Cross Sections with the MicroBooNE Detector

We report on the first measurement of flux-integrated single differential cross sections for charged-current (CC) muon neutrino (ν_{μ}) scattering on argon with a muon and a proton in the final state, ^{40}Ar (ν_{μ},μp)X. The measurement was carried out using the Booster Neutrino Beam at Fermi National Accelerator Laboratory and the MicroBooNE liquid argon time projection chamber detector with an exposure of 4.59×10^{19} protons on target. Events are selected to enhance the contribution of CC quasielastic (CCQE) interactions. The data are reported in terms of a total cross section as well as single differential cross sections in final state muon and proton kinematics. We measure the integrated per-nucleus CCQE-like cross section (i.e., for interactions leading to a muon, one proton, and no pions above detection threshold) of (4.93±0.76_{stat}±1.29_{sys})×10^{-38}  cm^{2}, in good agreement with theoretical calculations. The single differential cross sections are also in overall good agreement with theoretical predictions, except at very forward muon scattering angles that correspond to low-momentum-transfer events.

Selective Capture and Recovery of Monoclonal Antibodies by Self-Assembling Supramolecular Polymers of High Affinity for Protein Binding

The separation and purification of therapeutic proteins from their biological resources pose a great limitation for industrial manufacturing of biologics in an efficient and cost-effective manner. We report here a supramolecular polymeric system that can undergo multiple reversible processes for efficient capture, precipitation, and recovery of monoclonal antibodies (mAbs). These supramolecular polymers, namely immunofibers (IFs), are formed by coassembly of a mAb-binding peptide amphiphile with a rationally designed filler molecule of varying stoichiometric ratios. Under the optimized conditions, IFs can specifically capture mAbs with a precipitation yield greater than 99%, leading to an overall mAb recovery yield of 94%. We also demonstrated the feasibility of capturing and recovering two mAbs from clarified cell culture harvest. These results showcase the promising potential of peptide-based supramolecular polymers as reversible affinity precipitants for mAb purification.