Adverse childhood experiences among black sexually minoritized men and Black transgender women in Chicago.

Background: Adverse childhood experiences (ACE) are important predictors of mental health outcomes in adulthood. However, commonly used ACE measures such as the Behavioural Risk Factor Surveillance System (BRFSS) have not been validated among Black sexually minoritized men (SMM) nor transgender women (TW), whom are known to have higher rates of ACE and poorer mental health outcomes. Assessing the psychometric properties of the measure is important for health equity research, as measurements that are not valid for some populations will render uninterpretable results.

Addressing Systemic Racism in the American Professional Society on the Abuse of Children Publications.

The United States continues to grapple with longstanding policies and systems that have adversely impacted historically marginalized communities who identify (and are racialized) as non-White. These stem from a legacy of structural and systemic racism, and the long-term consequences of sanctioned colonization. This legacy rests upon a field of scholarly research that is similarly fraught with white supremacy.

Advancing glioblastoma imaging: Exploring the potential of organic fluorophore-based red emissive carbon dots.

Over time, the interest in developing stable photosensitizers (PS) which both absorb and emit light in the red region (650 and 950 nm) has gained noticeable interest. Recently, carbon dots (CDs) have become the material of focus to act as a PS due to their high extinction coefficient, low cytotoxicity, and both high photo and thermal stability. In this work, a Federal and Drug Association (FDA) approved Near Infra-Red (NIR) organic fluorophore used for photo-imaging, indocyanine green (ICG), has been explored as a precursor to develop water-soluble red emissive CDs which possess red emission at 697 nm.

The long origins of the visual, auditory, and kinesthetic learning style typology, 1921-2001.

This study traces the long early history of the visual, auditory, and kinesthetic (VAK) learning style typology. The VAK distinction and vocabulary originated with the psychology of mental imagery and word recall in the 1910s. It was further developed by researchers on remedial reading instruction for students with learning disabilities between the 1920s and 1950s, the teaching of urban youth in the 1960s, and culminated with the construction of formal learning style assessment instruments in the 1970s.

Synthetic Electrochemistry Enabled Esterification via Oxidative Mesolytic Cleavage of Alkoxyamines.

Stable benzylic carbocations were generated via mesolytic cleavage of TEMPO-derived alkoxyamines, which was realized by electrochemical oxidation. This strategy provided an efficient and unique approach to access stabilized carbocations under mild conditions. Esterification of benzylic carbocations using carboxylic acid produced a variety of benzylic esters with a broad substrate scope and excellent functional group compatibility.

Endothermic physiology of extinct megatooth sharks.

The evolution of the extinct megatooth shark, , and its close phylogenetic relatives remains enigmatic. A central question persists regarding the thermophysiological origins of these large predatory sharks through geologic time, including whether was ectothermic or endothermic (including regional endothermy), and whether its thermophysiology could help to explain the iconic shark's gigantism and eventual demise during the Pliocene. To address these uncertainties, we present unique geochemical evidence for thermoregulation in from both clumped isotope paleothermometry and phosphate oxygen isotopes.

Investigation into Red Emission and Its Applications: Solvatochromic N-Doped Red Emissive Carbon Dots with Solvent Polarity Sensing and Solid-State Fluorescent Nanocomposite Thin Films.

In this work, a NIR emitting dye, -toluenesulfonate (IR-813) was explored as a model precursor to develop red emissive carbon dots (813-CD) with solvatochromic behavior with a red-shift observed with increasing solvent polarity. The 813-CDs produced had emission peaks at 610 and 698 nm, respectively, in water with blue shifts of emission as solvent polarity decreased. Subsequently, 813-CD was synthesized with increasing nitrogen content with polyethyleneimine (PEI) to elucidate the change in band gap energy.

Sleep characteristics among black cisgender sexual minority men and black transgender women during the COVID-19 pandemic: The role of multi-level COVID-19-related stressors.

Objectives: To determine the association between individual, network, and structural COVID-19-related stressors and changes in sleep duration and quality among Black cisgender sexual minority men (SMM) and Black transgender women during the COVID-19 peak infectivity rate in Chicago.

Methods: From April 20, 2020 to July 31, 2020, we conducted the N2 COVID Study in Chicago (n = 226). The survey included questions regarding multi-level COVID-19-related stressors (eg, food unavailability, partner violence, housing instability, concern about neighborhood COVID-19), sleep duration, and sleep quality.

The C(sp)-H bond functionalization of thioethers with styrenes with insight into the mechanism.

A metal-free inactive C(sp)-H bond functionalization of thioethers with styrenes using TBHP as an initiator and DBU as a base has been developed. This transformation has broken through the low activity of thioethers and realized moderate yields. Herein extended experiments were conducted to confirm the radical relay process, reaction energy and intermediate transformations.

Implementation of learning by design in a synchronized online environment to teach educational robotics to inservice teachers.

Teaching educational robotics is of growing interest in K-12 settings. Yet, immense efforts are needed to move the field forward by framing the teaching of robotics with pedagogically sound theories as well as appropriate instructional design models and strategies. To meet this need, the authors designed and implemented an online educational robotics course for inservice teachers who had little or no prior experience in teaching robotics, by applying instructional design factors as well as teaching and facilitation strategies derived from the learning by design (LBD) framework.

Cenozoic megatooth sharks occupied extremely high trophic positions.

Trophic position is a fundamental characteristic of animals, yet it is unknown in many extinct species. In this study, we ground-truth the N/N ratio of enameloid-bound organic matter (δN) as a trophic level proxy by comparison to dentin collagen δN and apply this method to the fossil record to reconstruct the trophic level of the megatooth sharks (genus ). These sharks evolved in the Cenozoic, culminating in , a shark with a maximum body size of more than 15 m, which went extinct 3.

COVID-19 Conspiracy Beliefs are not Barriers to HIV Status Neutral Care Among Black Cisgender Sexual Minority Men and Black Transgender Women at the Initial Peak of the COVID-19 Pandemic in Chicago, USA.

We examined associations between COVID-19 conspiracy beliefs and HIV status neutral care engagement among Black cisgender sexual minority men (BCSMM) and Black transgender women (BTW). Throughout April-July 2020, a total of 226 (222 in the current analysis: 196 BCSMM, 20 BTW, and 6 other) participants in Chicago's Neighborhoods and Networks (N2) cohort study completed virtual assessments. Participants reported their HIV status, changes in the frequency of PrEP/ART use, and COVID-19 conspiracy beliefs.

Sleep Disturbance is Associated with Missing PrEP Doses Among Young Black Sexual Minority Men in The N2 study.

PrEP uptake and adherence among young Black sexual minority men (YBSMM), has been sub-optimal. Multiple studies identified sleep as an important determinant of medication adherence, although it has not been examined with regard to PrEP among YBSMM. This study utilized data collected from HIV-negative cisgender YBSMM in the Neighborhoods and Networks (N2) study in Chicago using PrEP (N = 70).

An analysis of nutrient facts labels of pediatric multi-vitamin and mineral supplements: Is there a risk of overexposure?

Background: Voluntary and mandatory fortification of pediatric foods, along with widespread consumption of dietary supplements have resulted in an increased proportion of children with excessive micronutrient intake.

Aim: This study aimed to analyze the proportion of pediatric dietary supplements that exceed the Recommended Dietary Allowance (RDA) and Tolerable Upper Limit for the individual micronutrients. We further identified the proportion of supplements with large amounts of micronutrients that were marketed through child-friendly and parent-geared promotional language and graphics on the packaging.

Hands-on, Minds-on, Hearts-on, Social-on: A Collaborative Maker Project Integrating Arts in a Synchronous Online Environment for Teachers.

This article presents a collaborative maker project integrating the arts in a synchronous online environment. Based on the Thinkering, Making, Sharing, and Reflecting (TMSR) model, the four components of hands-on, minds-on, hearts-on, and social-on learning were integrated into an online collaborative maker project involving arts, music, and coding. The authors first describe the theoretical framework of the TMSR model and the design and implementation of the maker project, and then report on the experiences and reflections of the participating teachers, who were enrolled in an online graduate course.

Vulnerability in practice: Peeling back the layers, avoiding triggers, and preventing cascading effects.

The concept of vulnerability is widely used in bioethics, particularly in research ethics and public health ethics. The traditional approach construes vulnerability as inherent in individuals or the groups to which they belong and views vulnerability as requiring special protections. Florencia Luna and other bioethicists continue to challenge traditional ways of conceptualizing and applying the term.

Polysubstance use in a community sample of Black cisgender sexual minority men and transgender women in Chicago during initial COVID-19 pandemic peak.

Background: In response to COVID-19, the city of Chicago issued stay-at-home orders, which began on March 20, 2020, and restrictions meant to "flatten the curve" remained in effect until June 2, 2020. On June 3, 2020, Chicago entered the reopening phase. This study compares rates of polysubstance use by COVID-19 lockdown phase and across sociodemographic characteristics in a Chicago-based sample of Black cisgender sexual minority men (SMM) and transgender women.

Adaptation of an In-Person Internship to a Virtual Format for Public Health Undergraduates.

The disruption of traditional, in-person learning due to the COVID-19 pandemic necessitated the rapid development and use of revised and novel learning opportunities using a variety of remote instructional methodologies. This viewpoint describes the process used by an undergraduate Public Health program to transition a traditional, in-person, semester-long, 480-hour internship to a virtual-only learning experience guided by the existing student learning outcomes. Working closely with public health professionals at existing internship agencies, alumni from the program, student interns, and program faculty developed a modified virtual internship composed of 6 components.

Copper-Catalyzed Aldehyde Exchanged Amidation.

The synthesis of bioactive amides has been the pursuit of chemists. Herein secondary amides incorporated with an aldehyde group were first generated using aldehydes and secondary amines. Various (hetero)aryl aldehydes and even aliphatic aldehydes (>40 examples) were converted into the desired products in moderate to excellent yields (up to 89%).

Discussion of Weight Loss Surgery in Instagram Posts: Successive Sampling Study.

Background: The majority of American adults search for health and illness information on the internet. However, the quality and accuracy of this information are notoriously variable. With the advent of social media, US individuals have increasingly shared their own health and illness experiences, including those related to bariatric surgery, on social media platforms.

Lot-sizing and pricing decisions for perishable products under three-echelon supply chains when demand depends on price and stock-age.

In economics, a demand curve is almost always downward-sloping, reflecting the willingness of consumers to purchase more of the commodity at lower price levels. In addition, the demand for seasonal products (such as fashion apparels, beverages etc.) or perishable goods (such as meat and seafood, dairy products, fruit and vegetables, pharmaceutical products, and chemicals) decreases over time.

"Who says I am coping": The emotional affect of New Jersey academic librarians during the COVID-19 pandemic.

The COVID-19 pandemic introduced a seismic shift to academic libraries. The state of New Jersey, one of the earliest affected regions in the United States, mandated the closure of all higher education institutions in March 2020, followed by a partial reopening of several campuses in Fall 2020. With the mandated closure and subsequent reopening, librarians needed to adjust their workflow during a time of high uncertainty and stress.

COVID-19-Related Stressors, Sex Behaviors, and HIV Status Neutral Care Among Black Men Who Have Sex With Men and Transgender Women in Chicago, USA.

Background: COVID-19 has disproportionately impacted vulnerable populations, including Black men who have sex with men (BMSM) and transgender women (BTW). We investigated associations of COVID-19 stressors and sex behaviors with pre-exposure prophylaxis (PrEP) and antiretroviral therapy (ART) among BMSM and BTW.

Methods: As part of the Neighborhoods and Networks (N2) study, we conducted virtual interviews during peak COVID-19 infectivity in Chicago among BMSM and BTW (April-July 2020).

Recyclable Catalysts for Alkyne Functionalization.

In this review, we present an assessment of recent advances in alkyne functionalization reactions, classified according to different classes of recyclable catalysts. In this work, we have incorporated and reviewed the activity and selectivity of recyclable catalytic systems such as polysiloxane-encapsulated novel metal nanoparticle-based catalysts, silica-copper-supported nanocatalysts, graphitic carbon-supported nanocatalysts, metal organic framework (MOF) catalysts, porous organic framework (POP) catalysts, bio-material-supported catalysts, and metal/solvent free recyclable catalysts. In addition, several alkyne functionalization reactions have been elucidated to demonstrate the success and efficiency of recyclable catalysts.