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Articles by Anna O’Brien
Investigations of Intramolecular and Intermolecular Noncovalent Interactions in Alkaline Earth Metal Complexes of – OC(Ph)(CF 3 ) 2 Click to copy article link Article link copied!
2.1. Synthesis and Characterization WARNING: Di-n-butyl magnesium, calcium metal, strontium metal, and barium metal in contact with water are highly reactive and emit flammable gases. These reagents and their products were handled in an inert-atmosphere glovebox or under nitrogen gas on a Schlenk line. Extreme care should be taken both in the handling of the cryogen liquid nitrogen and its use in the Schlenk line trap to avoid the condensation of oxygen from air.
Association between route of furosemide administration and diuretic response in very preterm infants with bronchopulmonary dysplasia
Abstracts Furosemide is commonly prescribed in hospitalized infants with grade 2-3 bronchopulmonary dysplasia (BPD). Intravenous (IV), gastric, and duodenal administrations are common, with a 1:2 IV-to-enteral conversion often used despite uncertain bioavailability. Our objective was to compare diuretic responses between routes in infants with BPD. Single-center observational cohort of very preterm infants with grade 2-3 BPD prescribed furosemide.
Helping Children Access the Rich Cultural Heritage of Immigration Through Literature
by ParentCo. November 29, 2023 “But are refugees really FORCED from their homes, or do they just CHOOSE to leave?” asked one student. “Actually,” a classmate blurted out. “Refugees ALWAYS leave because of war. There’s no other reason.” “The book says that natural disasters also cause people become refugees,” I informed the class.
Accelerated high-throughput imaging and phenotyping system for small organisms
PLOS ONE, Jul 2023 Studying the complex web of interactions in biological communities requires large multifactorial experiments with sufficient statistical power. Automation tools reduce the time and labor associated with setup, data collection, and analysis in experiments that untangle these webs. We developed tools for high-throughput experimentation (HTE) in duckweeds, small aquatic plants that are amenable to autonomous experimental preparation and image-based phenotyping.
Nanoplastic State and Fate in Aquatic Environments: Multiscale Modeling
We now know that nanoplastics can harm aquatic organisms, but understanding ecological risk starts with understanding fate. We coupled population balance and fugacity models to predict the conditions under which nanoplastics remain as single particles, aggregate, or sediment and to predict their capacity to concentrate organic pollutants.
NAL-NL2 Empirical Adjustments
Introduction The first prescription procedure developed by the National Acoustic Laboratories (NAL) for prescribing nonlinear gain (NAL-NL1) was introduced in 1999 (Byrne, Dillon, Katsch, Ching, & Keidser, 2001; Dillon, 1999). The prescription aims at maximizing speech intelligibility while ensuring that the overall loudness of speech does not exceed that perceived by normal-hearing listeners.
Experimental evolution makes microbes more cooperative with their local host genotype
Report View ORCID ProfileRebecca T. Batstone1,2,*, View ORCID ProfileAnna M. O’Brien1,3, View ORCID ProfileTia L. Harrison1, View ORCID ProfileMegan E. Frederickson1,4,5 1Department of Ecology & Evolutionary Biology, University of Toronto, Toronto, ON M5S 3B2, Canada. 2Carl R. Woese Institute for Genomic Biology, University of Illinois, Urbana, IL 61801, USA. 3Department of Mechanical & Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada.
Biological Responses to Climate Change and Nanoplastics Are Altered in Concert: Full-Factor Screening Reveals Effects of Multiple Stressors on Primary Producers
While the combined presence of global climate change and nanosized plastic particle (i.e., nanoplastic) pollution is clear, the potential for interactions between climate-change-shifting environmental parameters and nanoplastics is largely unknown. Here, we aim to understand how nanoplastics will affect species in concert with climate change in freshwater ecosystems.
Open with the Weather
03 Monday Feb 2020 Posted by Spelk in Flash Fiction ≈ 3 Comments by Anna O’Brien They say don’t open with the weather but how can you not when she opened the door and in came: The rain, no; The pouring rain, no; Cats, no; Cats and dogs and, no; Dead fish, better; Frogs, maybe; Wind and rain and toads somehow dry as parchment. Yes.
The Naked Public Square
What do most people do when they see a naked or nearly naked person in public? Most probably experience a moment of shock, point and laugh, call the police, or all of the above. Ask Eric Stagno. After seeing him parade around naked in a Planet Fitness gym doing “yoga-like” exercises, alarmed gym members called the police, who carted him away in handcuffs despite his claims that he thought Planet Fitness was a “judgment-free zone.” The phrase “judgment-free zone” shouldn’t be taken too literally.
Cowlicks: The Hidden Complexity of a Cow's Bad Hair Day
The next time your hair stylist fusses with a tuft at the back of your head that simply won’t lay flat, consider the Angus. While a bovine couldn’t care less about a hair whorl gone awry, it may be prudent for the farmer to take note. Turns out there is some serious science behind hair whorl behavior and brain development — both in bovines and humans.
Alleviate Your Horse's Allergies
Horses experience allergies that are generated by the same mechanisms as those in humans. An allergic reaction occurs when your horse’s immune system overreacts to something it determines is foreign to the body. When this happens, certain cells in the body produce excessive amounts of chemicals, such as histamine and prostaglandins. These chemical signals cause the clinical signs typical of an allergy. The clinical signs are determined by which body system is affected.
Managing Mystery Lameness
Sooner or later, it’s bound to happen to any horse owner: walking in from the pasture or trotting around the ring, your horse appears "off.” You may not be able to tell exactly what’s wrong, but you know his movement is definitely not right; his normally smooth symmetry looks unbalanced. Certainly, not every lameness is created equal and having four legs to choose from when trying to locate the problem can seemingly make the issue four times as complicated.
12 Tips for a Full Moon Trail Ride
Riding at night is a fun experience. Here's how to do it right. Riding under a harvest moon on a crisp autumn night is a memorable experience and one many equestrians have on their riding bucket list. Here are some safety tips to make sure your moonlit trail ride is the best it can be. Always wear a helmet. Wearing a helmet at all times when on horseback is always preferable, but considering the added unpredictability of the trail at night, helmets should be worm by all riders. Prep your horse.
Toxic Horse Treats
As horse lovers, time isn’t the only thing we like to share with our animals. Who hasn’t raided her fridge for some spare carrots to share after a trail ride? Or what about those leftover peppermints from the holidays? From sugar cubes to apples, most of the treats we give to our horses on occasion are perfectly fine, but there are items from your kitchen cabinet that shouldn’t wind up at the barn. Read on to find out which treats are safe for your horse and which are not.
Milking to Music
The modern milking parlors of today’s dairies are noisy, busy places filled with the clang and whoosh of automated milkers. It can be tough for a cow to find a moment’s peace, and a stressed cow is not a productive cow. The timing of milk production in bovines is a carefully balanced biological ballet. Stress can inhibit the release of oxytocin — a hormone key to the milk-releasing process. So the happiness of cows is very much on the minds of farmers.
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