Ultra-short and highly efficient metamaterial Fresnel lens-assisted taper.

This paper demonstrates the benefits of leveraging free-space optics concepts in the design of certain integrated photonic components, leading to a footprint reduction without compromising on performance. Specifically, we present ultra-short, highly efficient and fabrication-friendly mode-size converters based on metamaterial Fresnel lens-assisted tapers. This is achieved using a parameterized inverse-design approach, where the metamaterial phase shifters are realized using fabrication-friendly Manhattan geometries, by optimizing the width, length, and position of the phase shifters.

End-to-end simulations of photonic phase correctors for adaptive optics systems.

Optical beams and starlight distorted by atmospheric turbulence can be corrected with adaptive optics systems to enable efficient coupling into single-mode fibers. Deformable mirrors, used to flatten the wavefront in astronomical telescopes, are costly, sensitive, and complex mechanical components that require careful calibration to enable high-quality imaging in astronomy, microscopy, and vision science. They are also impractical to deploy in large numbers for non-imaging applications like free-space optical communication.

The Traces of Cancer: A Metaphorical Understanding of the Experiences of Women Living Beyond Breast Cancer.

This study feeds into ongoing discussions on the metaphors used by cancer patients. Its aim is to explore how women living with a history of breast cancer use metaphors to express and interpret the experience of cancer remission. Data were collected in interviews designed to capture a rich and metaphorical description of participants' experiences with breast cancer and what these experiences mean to them.

Mixed-Genotype HCV Direct Acting Antiviral Outcomes: A CANUHC Analysis.

The prevalence of mixed hepatitis C virus (HCV) genotype infection in a representative Canadian HCV cohort is reported and virological response with direct acting antiviral (DAA) treatment was evaluated. 3272 HCV-positive participants were enrolled, of which 2945 (90.0%) initiated DAA therapy.

Health Disparities Among Children in Immigrant Households: New York City 2009 and 2017.

We tested the hypothesis that children in New York City (NYC) with an immigrant parent were more likely to lack health insurance and report poorer parent-rated health compared to those of US-born parents in this serial, cross-sectional study using existing data from 2009 to 2017 among children age < 12 years in two NYC health surveys. Main outcomes were parent-reported responses for (1) child insurance coverage and (2) child general health status. In multivariable logistic regression models, we estimated likelihood of outcomes for children of immigrants compared to those of US-born parents, adjusting for child, parent, and household characteristics.

Population-based surveillance for birth defects potentially related to Zika virus infection including 3-year mortality and developmental outcomes, and Early Intervention Program service use-New York City, 2016 birth cohort.

Background: In response to the 2015-2017 Zika virus outbreak, New York City (NYC) identified and monitored infants with birth defects potentially related to congenital Zika virus.

Methods: Administrative data matches were used to describe the birth characteristics of children born in 2016 meeting screening criteria for birth defects potentially related to congenital Zika virus infection relative to other NYC births and to monitor mortality and Early Intervention Program use through age 2.

Results: Among 120,367 children born in NYC in 2016, 463 met screening criteria and 155 met the Centers for Disease Control and Prevention's case definition for birth defects potentially related to congenital Zika virus infection (1.

Impact of dry density and incomplete saturation on microbial growth in bentonite clay for nuclear waste storage.

Aims: Many countries are in the process of designing a deep geological repository (DGR) for long-term storage of used nuclear fuel. For several designs, used fuel containers will be placed belowground, with emplacement tunnels being backfilled using a combination of highly compacted powdered bentonite clay buffer boxes surrounded by a granulated "gapfill" bentonite. To limit the potential for microbiologically influenced corrosion of used fuel containers, identifying conditions that suppress microbial growth is critical for sustainable DGR design.

Development of the Pediatric Integrated Nutrition Pathway for Acute Care (P-INPAC) using a modified Delphi technique.

One in three hospitalized children have disease-related malnutrition (DRM) upon admission to hospital, and all children are at risk for further nutritional deterioration during hospital stay; however, systematic approaches to detect DRM in Canada are lacking. To standardise and improve hospital care, the multidisciplinary pediatric working group of the Canadian Malnutrition Taskforce aimed to develop a pediatric, inpatient nutritional care pathway based on available evidence, feasibility of resources, and expert consensus. The working group ( = 13) undertook a total of four meetings: an in-person meeting to draft the pathway based on existing literature and modelled after the Integrated Nutrition Pathway for Acute Care (INPAC) in adults, followed by three online surveys and three rounds of online Delphi consensus meetings to achieve agreement on the draft pathway.

Integrating accompanying patients into clinical oncology teams: limiting and facilitating factors.

Objectives: Since 2018, four establishments in Quebec have been instrumental in implementing the PAROLE-Onco program, which introduced accompanying patients (APs) into healthcare teams to improve cancer patients' experience. APs are patient advisors who have acquired specific experiential knowledge related to living with cancer, using services, and interacting with healthcare professionals. They are therefore in a unique and reliable position to be able to provide emotional, informational, cognitive and navigational support to patients who are dealing with cancer.

Measurement accuracy in silicon photonic ring resonator thermometers: identifying and mitigating intrinsic impairments.

Silicon photonic ring resonator thermometers have been shown to provide temperature measurements with a 10 mK accuracy. In this work we identify and quantify the intrinsic on-chip impairments that may limit further improvement in temperature measurement accuracy. The impairments arise from optically induced changes in the waveguide effective index, and from back-reflections and scattering at defects and interfaces inside the ring cavity and along the path between light source and detector.

Performance Investigations of InAs/InP Quantum-Dash Semiconductor Optical Amplifiers with Different Numbers of Dash Layers.

We present here a performance comparison of quantum-dash (Qdash) semiconductor amplifiers (SOAs) with three, five, eight, and twelve InAs dash layers grown on InP substrates. Other than the number of Qdash layers, the structures were identical. The eight-layer Qdash SOA gave the highest amplified spontaneous emission power (4.

Optical wavefront phase-tilt measurement using Si-photonic waveguide grating couplers.

Silicon photonic wavefront phase-tilt sensors for wavefront monitoring using surface coupling grating arrays are demonstrated. The first design employs the intrinsic angle dependence of the grating coupling efficiency to determine local wavefront tilt, with a measured sensitivity of 7 dB/°. The second design connects four gratings in an interferometric waveguide circuit to determine incident wavefront phase variation across the sensor area.

Intentional presence and the accompaniment of dying patients.

In this paper, we offer a phenomenological and hermeneutical perspective on the presence of clinicians who care for the suffering and dying patients in the context of end-of-life care. Clinician presence is described as a way of (1) being present to the patient and to oneself, (2) being in the present moment, and (3) receiving and giving a presence (in the sense of a gift). We discuss how presence is a way of restoring human beings' relational and dialogical nature.

A Phenomenological and Clinical Description of Pandemic Grief: How to Adapt Bereavement Services?

Background: Some studies suggest that individuals having lost a loved one during the COVID-19 pandemic report higher levels of grief reactions than people bereaved from natural causes. Little is known about the lived and subjective experience of individuals who lost a loved one under confinement measures.

Aim: This research aims to provide a phenomenological description of pandemic grief (PG) that can be useful in clinical settings and bereavement services.

Improving community and healthcare services for young adults living with cancer: Suggestions from a multiple stakeholder workshop.

Background And Objectives: Despite the availability of healthcare and community services dedicated to cancer survivors, these remain underutilized by young adults living with cancer (YAC; aged 18-39). A workshop was organized in Montréal, Canada, to identify the needs of YAC during their post-treatment transition period and explore existing services dedicated to YAC.

Methods: We recruited seventeen stakeholders (N = 17), including seven YAC, to participate in a one-day workshop to consult about best approaches and practices to meet the needs of YAC, post-treatment.

Direct-acting antiviral treatment uptake and sustained virological response outcomes are not affected by alcohol use: A CANUHC analysis.

Background: Alcohol use and hepatitis C virus (HCV) are two leading causes of liver disease. Alcohol use is prevalent among the HCV-infected population and accelerates the progression of HCV-related liver disease. Despite barriers to care faced by HCV-infected patients who use alcohol, few studies have analyzed uptake of direct-acting antiviral (DAA) treatment.

Predicting the presence of depressive symptoms in the HIV-HCV co-infected population in Canada using supervised machine learning.

Background: Depression is common in the human immunodeficiency virus (HIV)-hepatitis C virus (HCV) co-infected population. Demographic, behavioural, and clinical data collected in research settings may be of help in identifying those at risk for clinical depression. We aimed to predict the presence of depressive symptoms indicative of a risk of depression and identify important classification predictors using supervised machine learning.

An adaptable platform for in-house hepatitis C serology.

Serology-based diagnosis remains one of the major tools for diagnosis and surveillance of infectious diseases. However, for many neglected diseases no or only few commercial assays are available and often with prices prohibiting large scale testing in low and middle-income countries (LMICs). We developed an adaptable enzyme-linked immunoassay (ELISA) using hepatitis C virus (HCV) as a proof-of-concept application.

Impact of Hepatitis C Virus Cure on Depressive Symptoms in the Human Immunodeficiency Virus-Hepatitis C Virus Coinfected Population in Canada.

Background: Depression is common in people with human immunodeficiency virus (HIV) and hepatitis C virus (HCV), with biological and psychosocial mechanisms at play. Direct acting antivirals (DAA) result in high rates of sustained virologic response (SVR), with minimal side-effects. We assessed the impact of SVR on presence of depressive symptoms in the HIV-HCV coinfected population in Canada during the second-generation DAA era (2013-2020).