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Seasonal source identification and source-specific health risk assessment of pollutants in road dust

Author(s): Wang J; Huang JJ; Mulligan C;

Humans who are exposed to metals in road dust may have potential health risks through touching, ingesting, and inhaling the suspended road dust. There were limited studies to link seasonal emission sources to health risks from metals in road dust. In this study, metals in road dust from different functional areas were seasonally monitored. The contributio ...

Article GUID: 34510345


Programmed Synthesis of Tetra-Aryl Thiophenes with Stepwise, Ester-Controlled Regioselectivity

Author(s): Messina C; Ottenwaelder X; Forgione P;

Herein, we report a modular synthetic route to access tetra-arylated thiophene compounds with four different substituents with programmed chemical control provided by an ester activating/directing group. This method enables the functionalization of individual positions of thiophene sequentially via regioselective halogenations and cross-coupling reactions ...

Article GUID: 34506149


Analysis and Design of Lattice Structures for Rapid-Investment Casting

Author(s): Christopher T Richard

This paper aims to design lattice structures for rapid-investment casting (RIC), and the goal of the design methodology is to minimize casting defects that are related to the lattice topology. RIC can take full advantage of the unprecedented design freedom provided by AM. Since design for RIC has multiple objectives, we limit our study to lattice structur ...

Article GUID: 34500961


Cancer-Nano-Interaction: From Cellular Uptake to Mechanobiological Responses

Author(s): Sohrabi Kashani A; Packirisamy M;

With the advancement of nanotechnology, the nano-bio-interaction field has emerged. It is essential to enhance our understanding of nano-bio-interaction in different aspects to design nanomedicines and improve their efficacy for therapeutic and diagnostic applications. Many researchers have extensively studied the toxicological responses of cancer cells t ...

Article GUID: 34502495


Depression and anxiety symptoms in young adults before and during the COVID-19 pandemic: evidence from a Canadian population-based cohort

Author(s): Watkins-Martin K; Orri M; Pennestri MH; Castellanos-Ryan N; Larose S; Gouin JP; Ouellet-Morin I; Chadi N; Philippe F; Boivin M; Tremblay RE; Côté S; Geoffroy MC;

Background: Concerns have been raised that the COVID-19 pandemic could increase risk for adverse mental health outcomes, especially in young adults, a vulnerable age group. We investigated changes in depression and anxiety symptoms (overall and severe) from before to during the pandemic, as well ...

Article GUID: 34496901


Caregivers' Considerations of Remorse and Responsibility Among Youth Who Sexually Offend

Author(s): Gervais CLM; Johnston MS;

When a youth sexually offends, most of the reactions and repercussions that follow are understandably negative. However, there is limited research about mixed reactions involving remorse and responsibility on the part of the adolescent who offended and their relatives. Based on qualitative interviews with 16 caregivers among 10 families in Canada, this ar ...

Article GUID: 34490799


Creating doorways: finding meaning and growth through art therapy in the face of life-threatening illness

Author(s): Reilly RC; Lee V; Laux K; Robitaille A;

Objectives: This article presents the findings of a pilot study situated in a tertiary care cancer centre and examines the impact of an art therapy group on the experiences of women living through breast cancer. Study design: The study design used in this study is a qualitative cross-case comparative case. Methods: Ten women were interviewed about their ...

Article GUID: 34487868


Fine-tuning language discrimination: Bilingual and monolingual infants' detection of language switching

Author(s): Schott E; Mastroberardino M; Fourakis E; Lew-Williams C; Byers-Heinlein K;

The ability to differentiate between two languages sets the stage for bilingual learning. Infants can discriminate languages when hearing long passages, but language switches often occur on short time scales with few cues to language identity. As bilingual infants begin learning sequences of sounds and words, how do they detect the dynamics of two languag ...

Article GUID: 34482624


War and reintegration for girls and young women in northern Uganda: A scoping review

Author(s): Savard M; Michaelsen S;

Background: During the civil war in northern Uganda (1986-2006), thousands of girls were abducted into rebel and government forces. Most of the females who were not abducted lived in abhorrent conditions in camps for internally displaced people (IDP). As the war was drawing to a close, reintegration programs emerged and some continue today. Objective: Us ...

Article GUID: 34479000


Energy migration control of multi-modal emissions in an Er3+ doped nanostructure toward information encryption and deep learning decoding

Author(s): Song Y; Lu M; Mandl GA; Xie Y; Sun G; Chen J; Liu X; Capobianco JA; Sun L;

Modulating the emission wavelengths of materials has always been a primary focus of fluorescence technology. Nanocrystals (NCs) doped with lanthanide ions with rich energy levels can produce a variety of emissions at different excitation wavelengths. However, the control of multi-modal emissions of these ions has remained a challenge. Herein, we present a ...

Article GUID: 34476872


Sustainable chemical processing of flowing wastewater through microwave energy

Author(s): Siddique F; Mirzaei A; Gonzalez-Cortes S; Slocombe D; Al-Megren HA; Xiao T; Rafiq MA; Edwards PP;

Iron oxide nanostructured catalysts have emerged as potential candidates for efficient energy conversion and electrochemical energy storage devices. However, synthesis and design of nanomaterial plays a key role in its performance and efficiency. Herein, we describe a one-pot solution combustion ...

Article GUID: 34474383


Cocaine cue-induced mesocorticolimbic activation in cocaine users: Effects of personality traits, lifetime drug use, and acute stimulant ingestion

Author(s): D' Amour-Horvat V; Cox SML; Dagher A; Kolivakis T; Jaworska N; Leyton M;

Stimulant drug-paired cues can acquire the ability to activate mesocorticolimbic pathways and lead to new bouts of drug use. Studies in laboratory animals suggest that these effects are augmented by progressively greater drug use histories, impulsive personality traits, and acute drug ingestion. As a preliminary test of these hypotheses in humans, we expo ...

Article GUID: 34463411


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