58 research outputs found
Composing a Literary Adoption Memoir and Self Through Creative Nonfiction Memoir Writing
Adoption writings span across various forms, such as fiction, non-fiction, essays, poetry, theatre, and scholarly fields of study. While many of these adoption writings speak to the complexities of adoption, the general public still tends to see adoption âsuch a beautiful thingâ to doâas the best plan for the child, a noble act, a selfless decision, and a solution to a long-standing social issue. This thesis explores the âliterary adoption memoirââartful writings about real life happenings; my contribution to this genre addresses the complexities of the closed adoption era, transnational/transracial adoption, and parenting an adoptee as an adult adoptee. For this project, I share my process and the theories that validate and inform my felt experiences as an adoptee and as an adoptive mom. I use the literary tools in the creative nonfiction genre to write not a mere record of events of my adoption, of adopting our daughter, of searching for my birth family. I offer pieces of creative nonfiction that represent my desire for a final project: a literary adoption memoirâa memoir of real life that borrows from the literary world, and a memoir that speaks to the complications in adoptionâto loss, abandonment, belonging, identity, and rejection
Perinatal Bisphenol A Exposure in C57B6/129svj Male Mice: Potential Altered Cytokine/Chemokine Production in Adulthood
Pregnant mice (n = 3) were exposed to BPA by intraperitoneal injection, from gestation day 9.5 until end of lactation. Male offspring were evaluated for cytokine production at 20 wk-of-age. One pregnant control mouse produced no males, precluding statistical analysis. However, recurring shifts in cytokines were suggested in the adult BPA offspring. Serum showed a numeric increase in 16 of 21 basal cytokine levels. ConA-stimulated splenocytes showed a numeric increase in 17 of 21 cytokines, and LPS-stimulated splenocytes an increase in 18 of 21 cytokines. The cytokine profile was one of TH1 up-regulation more than TH2, and with skewing toward TH17 responses
Outcomes of interventions in neonatal sepsis:A systematic review of qualitative research
BackgroundWhile a systematic review exists detailing neonatal sepsis outcomes from clinical trials, there remains an absence of a qualitative systematic review capturing the perspectives of key stakeholders.ObjectivesOur aim is to identify outcomes from qualitative research on any intervention to prevent or improve the outcomes of neonatal sepsis that are important to parents, other family members, healthcare providers, policymakers, and researchers as a part of the development of a core outcome set (COS) for neonatal sepsis.Search StrategyA literature search was carried out using MEDLINE, EMBASE, CINAHL, and PsycInfo databases.Selection CriteriaPublications describing qualitative data relating to neonatal sepsis outcomes were included.Data Collection and AnalysisDrawing on the concepts of thematic synthesis, texts related to outcomes were coded and grouped. These outcomes were then mapped to the domain headings of an existing model.Main ResultsOut of 6777 records screened, six studies were included. Overall, 19 outcomes were extracted from the included studies. The most frequently reported outcomes were those in the domains related to parents, healthcare workers and individual organ systemas such as gastrointestinal system. The remaining outcomes were classified under the headings of general outcomes, miscellaneous outcomes, survival, and infection.ConclusionsThe outcomes identified in this review are different from those reported in neonatal sepsis clinical trials, thus highlighting the importance of incorporating qualitative studies into COS development to encapsulate all relevant stakeholders' perspectives.This study reviews outcomes considered important in neonatal sepsis by stakeholders such as parents and healthcare providers, aiding in developing a core outcome set (COS)
Pointing control for the SPIDER balloon-borne telescope
We present the technology and control methods developed for the pointing
system of the SPIDER experiment. SPIDER is a balloon-borne polarimeter designed
to detect the imprint of primordial gravitational waves in the polarization of
the Cosmic Microwave Background radiation. We describe the two main components
of the telescope's azimuth drive: the reaction wheel and the motorized pivot. A
13 kHz PI control loop runs on a digital signal processor, with feedback from
fibre optic rate gyroscopes. This system can control azimuthal speed with <
0.02 deg/s RMS error. To control elevation, SPIDER uses stepper-motor-driven
linear actuators to rotate the cryostat, which houses the optical instruments,
relative to the outer frame. With the velocity in each axis controlled in this
way, higher-level control loops on the onboard flight computers can implement
the pointing and scanning observation modes required for the experiment. We
have accomplished the non-trivial task of scanning a 5000 lb payload
sinusoidally in azimuth at a peak acceleration of 0.8 deg/s, and a peak
speed of 6 deg/s. We can do so while reliably achieving sub-arcminute pointing
control accuracy.Comment: 20 pages, 12 figures, Presented at SPIE Ground-based and Airborne
Telescopes V, June 23, 2014. To be published in Proceedings of SPIE Volume
914
Recommended from our members
A small molecule that mitigates bacterial infection disrupts Gram-negative cell membranes and is inhibited by cholesterol and neutral lipids
Infections caused by Gram-negative bacteria are difficult to fight because these pathogens exclude or expel many clinical antibiotics and host defense molecules. However, mammals have evolved a substantial immune arsenal that weakens pathogen defenses, suggesting the feasibility of developing therapies that work in concert with innate immunity to kill Gram-negative bacteria. Using chemical genetics, we recently identified a small molecule, JD1, that kills Salmonella enterica serovar Typhimurium (S. Typhimurium) residing within macrophages. JD1 is not antibacterial in standard microbiological media, but rapidly inhibits growth and curtails bacterial survival under broth conditions that compromise the outer membrane or reduce efflux pump activity. Using a combination of cellular indicators and super resolution microscopy, we found that JD1 damaged bacterial cytoplasmic membranes by increasing fluidity, disrupting barrier function, and causing the formation of membrane distortions. We quantified macrophage cell membrane integrity and mitochondrial membrane potential and found that disruption of eukaryotic cell membranes required approximately 30-fold more JD1 than was needed to kill bacteria in macrophages. Moreover, JD1 preferentially damaged liposomes with compositions similar to E. coli inner membranes versus mammalian cell membranes. Cholesterol, a component of mammalian cell membranes, was protective in the presence of neutral lipids. In mice, intraperitoneal administration of JD1 reduced tissue colonization by S. Typhimurium. These observations indicate that during infection, JD1 gains access to and disrupts the cytoplasmic membrane of Gram-negative bacteria, and that neutral lipids and cholesterol protect mammalian membranes from JD1-mediated damage. Thus, it may be possible to develop therapeutics that exploit host innate immunity to gain access to Gram-negative bacteria and then preferentially damage the bacterial cell membrane over host membranes.</p
Estimation of self-exchange electron transfer rate constants for organic compounds from stopped-flow studies
Second-order rate constants k12(obsd) measured at 25 °C in acetonitrile by stopped-flow for 47 electron transfer (ET) reactions among ten tetraalkylhydrazines, four ferrocene derivatives, and three p-phenylenediamine derivatives are discussed. Marcus's adiabatic cross rate formula k12(calcd) = (k11 k22 k12 f12)1/2, ln f12 = (ln K12)2/4 ln(k11k22/Z2) works well to correlate these data. When all k12(obsd) values are simultaneously fitted to this relationship, best-fit self-exchange rate constants, kii(fit), are obtained that allow remarkably accurate calculation of k12(obsd); k12(obsd)/k12â(calcd) is in the range of 0.55â1.94 for all 47 reactions. The average ÎÎGij between observed activation free energy and that calculated using kii(fit) is 0.13 kcal/mol. Simulations using Jortner vibronic coupling theory to calculate k12 using parameters which produce the wide range of kii values observed predict that Marcus's formula should be followed even when V is as low as 0.1 kcal/mol, in the weakly nonadiabatic region. Tetracyclohexylhydrazine has a higher kii than tetraisopropylhydrazine by a factor of ca. 10. Replacing the dimethylamino groups of tetramethyl-p-phenylenediamine by 9-azabicyclo[3.3.1]nonyl groups has little effect on kii, demonstrating that conformations which have high intermolecular aromatic ring overlap are not necessary for large ET rate constants. Replacing a Îł CH2 group of a 9-azabicyclo[3.3.1]nonyl group by a carbonyl group lowers kii by a factor of 17 for the doubly substituted hydrazine and by considerably less for the doubly substituted p-phenylenediamine
Estimation of Self-Exchange Electron Transfer Rate Constants for Organic Compounds from Stopped-Flow Studies
Forensic electrochemistry: indirect electrochemical sensing of the components of the new psychoactive substance "Synthacaine"
âSynthacaineâ is a New Psychoactive Substance which is, due to its inherent psychoactive properties,
reported to imitate the effects of cocaine and is therefore consequently branded as âlegal cocaineâ. The
only analytical approach reported to date for the sensing of âSynthacaineâ is mass spectrometry. In this
paper, we explore and evaluate a range of potential analytical techniques for its quantification and potential
use in the field screening âSynthacaineâ using Raman spectroscopy, presumptive (colour) testing, High
Performance Liquid Chromatography (HPLC) and electrochemistry. HPLC analysis of street samples
reveals that âSynthacaineâ comprises a mixture of methiopropamine (MPA) and 2-aminoindane (2-AI).
Raman spectroscopy and presumptive (colour) tests, the Marquis, Mandelin, Simonâs and Robadope test,
are evaluated towards a potential in-the-field screening approach but are found to not be able to discriminate
between the two when they are both present in the same sample, as is the case in the real
street samples. We report for the first time a novel indirect electrochemical protocol for the sensing of
MPA and 2-AI which is independently validated in street samples with HPLC. This novel electrochemical
approach based upon one-shot disposable cost effective screen-printed graphite macroelectrodes holds
potential for in-the-field screening for âSynthacaineâ.
Introduction
In the last few years there has been a striking increase in the
sale of âNew Psychoactive Substancesâ (NPSs) formerly known as
âlegal highsâ.1 These chemicals may be bought through the
internet at low cost and are sometimes pure compounds
which display highly similar chemical structures to existing
controlled substances within the phenethylamine class.
âSynthacaineâ is a slang term derived from âsyntheticâ and
âcocaine
2017 Research & Innovation Day Program
A one day showcase of applied research, social innovation, scholarship projects and activities.https://first.fanshawec.ca/cri_cripublications/1004/thumbnail.jp
Forensic electrochemistry: simultaneous voltammetric detection of MDMA and its fatal counterpart "Dr Death" (PMA)
The simultaneous detection of substances present in drugs of abuse is increasingly important since some materials are known for their high mortality rate. One drug that received considerable attention is para-methoxyamphetamine (PMA), commonly known as âDr Deathâ â this substance is linked with several deaths internationally and can often be found together with 3,4-methylenedioxymethamphetamine (MDMA) in drugs sold under the alias âecstasyâ, a very popular drug of abuse. This work reports for the first time the detection and quantification of MDMA and PMA simultaneously through an electrochemical technique using screen-printed graphite electrodes (SPEs). The electroanalytical sensing of MDMA/PMA, MDMA and PMA are explored directly at bare unmodified SPEs yielding a detection limit (3Ï) corresponding to 0.25 ÎŒg mLâ1/0.14 ÎŒg mLâ1 for MDMA/PMA, 0.04 ÎŒg mLâ1 MDMA and 0.03 ÎŒg mLâ1 PMA. Raman spectroscopy and presumptive colour tests were also performed on MDMA/PMA, MDMA and PMA using the Marquis, Mandelin, Simon's and Robadope tests but were found to not be able discriminate when PMA and MDMA are both present in the same samples. We report a novel electrochemical protocol for the sensing of PMA and MDMA which is independently validated in a synthetic (MDMA/PMA) sample with HPLC
- âŠ