Impact of Surface Functionalization and Deposition Method on Cu-BDC surMOF Formation, Morphology, Crystallinity, and Stability.

For direct integration into device architectures, surface-anchored metal-organic framework (surMOF) thin films are attractive systems for a wide variety of electronic, photonic, sensing, and gas storage applications. This research systematically investigates the effect of deposition method and surface functionalization on the film formation of a copper paddle-wheel-based surMOF. Solution-phase layer-by-layer (LBL) immersion and LBL spray deposition methods are employed to deposit copper benzene-1,4-dicarboxylate (Cu-BDC) on gold substrates functionalized with carboxyl- and hydroxyl-terminated alkanethiol self-assembled monolayers (SAMs). A difference in crystal orientation is observed by atomic force microscopy and X-ray diffractometry based on surface functionalization for films deposited by the LBL immersion method but not for spray-deposited films. Cu-BDC crystallites with a strong preferred orientation perpendicular to the substrate were observed for the films deposited by the LBL immersion method on carboxyl-terminated SAMs. These crystals could be removed upon testing adhesive properties, whereas all other Cu-BDC surMOF film structures demonstrated excellent adhesive properties. Additionally, film stability upon exposure to water or heat was investigated. Ellipsometric data provide insight into film formation elucidating 7 and 14 Å average thicknesses per deposition cycle for films deposited by the immersion method on 11-mercapto-1-undecanol (MUD) and 16-mercaptohexadecanoic acid (MHDA), respectively. In contrast, the films deposited by the spray method are thicker with the same average thickness per deposition cycle (21 Å) for both SAMs. While the spray method takes less time to grow thicker films, it produces similar crystallite structures, regardless of the surface functionalization. This research is fundamental to understanding the impact of deposition method and surface functionalization on surMOF film growth and to provide strategies for the preparation of high-quality surMOFs.

Social Media Depictions of Cochlear Implants: An Instagram and TikTok Analysis.

OBJECTIVE: To identify populations of authors who post about cochlear implants (CIs) on Instagram and TikTok, to illustrate the content of these posts, and to elucidate factors that might help surgeons better educate CI patients. STUDY DESIGN: Qualitative study. SETTING: Instagram and TikTok social media platforms. PATIENTS: All public social media posts identified with the search terms below. Posts were excluded if unrelated to CIs or if written in a non-English language. INTERVENTION: Instagram and TikTok were searched for posts from March 2021 through September 2021 with the search terms #cochlearimplant, #cochlearimplants, #cochlearimplantkids, #cochlearkids, and #cochlearfamily. MAIN OUTCOME MEASURES: Posts were subclassified and analyzed for content including topics of posts, authorship, timeframe of posts, depiction of CIs, and popularity. RESULTS: Of 1,942 posts included in the final analysis, 1,400 were found on Instagram and 542 on TikTok. Authors were mostly patients (n = 771, 39.7%), companies (n = 568, 29.2%), and patients' family members (n = 482, 24.8%). Only 21 posts were made by physicians (1.1%). Out of 379 total educational posts examined, patients themselves were the most common authors (n = 219, 57.8%) followed by patients' family members (n = 139, 36.7%). Physicians authored only a small fraction of all educational posts (n = 19, 5.0%). CONCLUSIONS: This study showed minimal physician involvement in the CI social media spheres of Instagram and TikTok. In addition, there were few educational posts on either platform, revealing ample opportunity for physicians to become more involved with CI social media.

A longitudinal study of COVID-19 disclosure stigma and COVID-19 testing hesitancy in the United States.

OBJECTIVES: This study examines the relationship between COVID-19 disclosure stigma and COVID-19 testing hesitancy and assesses their changes between November 2020 and 2021. STUDY DESIGN: This was a longitudinal cohort. METHODS: A total of 355 participants completed four study waves between November 2020 and November 2021. Factor analyses and Cronbach's alpha assessed the factor structure and internal consistency of the COVID-19 Disclosure Stigma scale. Paired t-tests and McNemar's Chi-squared test assessed change between the study waves. Multivariable logistic regression models examined the relationship between COVID-19 disclosure stigma and testing hesitancy at four study waves. RESULTS: COVID-19 disclosure stigma declined significantly between the last study waves (P = 0.030). The greatest disclosure concern was reporting a positive test to close contacts (range: 19%-21%) followed by disclosure to friends (range: 10%-15%) and family (range: 4%-10%). Over the course of the four study waves, COVID-19 testing hesitancy when symptomatic ranged from 23% to 30%. Older age, female gender, and having received a COVID-19 vaccine were associated with decreased odds of testing hesitancy. Greater COVID-19 disclosure stigma and more conservative political ideology showed a consistent relationship with increased odds of COVID-19 testing hesitancy. CONCLUSIONS: Study findings suggest that many people anticipate feeling stigmatized when disclosing positive test results, especially to close contacts. A substantial percentage of study participants reported hesitancy to be tested when symptomatic. This study identifies a need for interventions that normalize COVID-19 testing (e.g. engaging leaders with conservative followings), provide strategies for disclosing positive results, and allow anonymous notification of potential COVID-19 exposure.

Trending Tubes: A Social Media Analysis of Tympanostomy Tubes in Children.

Objective: To investigate the popular social media platforms Instagram and Facebook for public posts related to tympanostomy tubes in children, to discern attitudes and perceptions surrounding tympanostomy tubes, and to evaluate the content of social media posts related to tympanostomy tubes. Study Design: Qualitative study. Setting: Instagram and Facebook social media platforms. Methods: Instagram and Facebook were searched for public posts from 2018 and 2019 including the search terms "ear tubes,""ear tube surgery,""tympanostomy," and "myringotomy." Posts were excluded if they were unrelated to pediatric tympanostomy tubes or written in a non-English language. Relevant posts underwent subgroup analysis based on 6 domains: media type, perspective, topic, timeframe, popularity, and overall tone. Results: Of 1862 public social media posts, the majority (78.2%) were made by the patient's parents/caregivers and the rest by physicians (6.0%), hospitals (8.2%), and chiropractors (6.1%), with a few posts by the patients themselves (0.4%). The majority (79.3%) of posts portrayed tympanostomy tubes positively. Most negative posts were made by chiropractors (50.8%) and the patient's parents/caregivers (42.9%). The most common themes of posts were reassurance regarding surgery (74.9%), advertisements (12.5%), apprehension (12.4%), and education (10.3%). Conclusion: Most social media posts were made by parents/caregivers in the perioperative period, and there was a low percentage of educational posts. This information could be used by otolaryngologists to optimize their interactions with patients and parents and to potentially increase physician involvement and educational material related to tympanostomy tubes on social media.

Publication rates and characteristics of PGY2 psychiatric pharmacy resident research projects.

Introduction: To describe the publication rates and characteristics of PGY2 psychiatric pharmacy residency projects presented as a poster presentation at the annual meetings of the College of Psychiatric and Neurologic Pharmacists (CPNP) from 2002 to 2018. (As of 2022 the organization is under the name, American Association of Psychiatric Pharmacists.). Methods: CPNP abstracts from even years were strategically searched in PubMed, Ovid MEDLINE, and Google Scholar. If a publication was identified, additional data were collected for characterization, including study information, journal information, author information, institutional affiliation, publication year, and time to publication. Results: A total of 348 abstracts were evaluated. Publication in a journal was achieved for 60 projects (17.2%), with publication rates decreasing from 2012 to 2018. The mean time to publication was 17.3 months after completion of the residency, with most projects published at 8 months. More than half (51.7%) of these projects were published in a psychiatric pharmacy journal affiliated with CPNP. Study designs were predominantly retrospective, observational, cohort studies with a focus on evaluation of a drug therapy outcome. The PGY2 resident was the first author in 90% of the publications. Forty percent included other health care professionals outside of pharmacy as a coauthor. PGY2 residencies affiliated with academic institutions had overall higher publications rates. Discussion: Publication rates for PGY2 psychiatric pharmacy residency projects are low and are decreasing over time despite an increasing number of PGY2 psychiatric pharmacy residency programs. This publication rate is lower than that reported in the literature for PGY2 critical care residency programs. The downward trend of publication rates for PGY2 psychiatric pharmacy residency projects is concerning.

Pediatric cochlear implantation: expanding applications and outcomes.

Cochlear implantation is a revolutionary yet time-sensitive treatment for deaf children that must be performed within a critical window of time, in early life, for a congenitally deafened child to receive maximum benefit. Potential candidates should therefore be referred for evaluation early. Primary reasons for delay of cochlear implantation include slow referrals for care, parental delays, and payer delays. It is vital that all newborn children undergo hearing screening to identify deaf children at birth, and for parents, health care providers, and health care payers to be educated about the indications, important benefits, and reasonable risks of cochlear implantation for deaf children.

Successes and complications of the Baha system.

OBJECTIVE: To determine the incidence and type of complications, as well as patient satisfaction, associated with the Baha system. STUDY DESIGN: Retrospective case review. SETTING: The Silverstein Institute, Sarasota, Florida, and the Columbia University Medical Center, New York, New York. PATIENTS: Patients with conductive/mixed hearing loss and single-sided deafness implanted with the Baha system between June 1998 and December 2007. INTERVENTION: Implantation with the Baha system. MAIN OUTCOME MEASURE: Incidence and type of complications associated with Baha implantation and patient satisfaction as measured by a questionnaire administered on site or by telephone. RESULTS: : In our series of 218 patients (223 ears), there were no major complications. Of these patients, 4.5% required revision surgery for soft tissue complications and 1.3% needed revision for failure of osseointegration. Eight percent (8%) required local care and resolved within 2 to 3 weeks of treatment. Five percent (5%) required in office procedures. One hundred six (106) patients satisfactorily completed the survey questionnaire. Ninety-two percent (92%) reported using the device regularly and 77% were happy with the device. On average, patients reported using the device 10.1 h/d, 5.6 d/wk. CONCLUSION: The Baha system is safe and effective in the rehabilitation of patients with conductive or mixed hearing losses and with single-sided deafness. The high success rate, patient satisfaction rate, and predictable auditory outcome place the Baha among the leading choices for auditory rehabilitation.

A putative farnesoic acid O-methyltransferase (FAMeT) orthologue in Drosophila melanogaster (CG10527): relationship to juvenile hormone biosynthesis?

Juvenile hormones (JHs) are key regulators of both metamorphosis and adult reproductive processes. Farnesoic acid O-methyltransferase (FAMeT) is thought to be an important enzyme in the JH biosynthetic pathway, catalyzing methylation of farnesoic acid (FA) to methyl farnesoate (MF). Previous evidence in other insects suggested that FAMeT is rate limiting and regulated by a neuropeptide family, the allatostatins. A full-length cDNA encoding a 296 amino acid putative FAMeT has been isolated. A recombinant (r)FAMeT was cloned, expressed and a specific antiserum generated. rFAMeT was assayed for enzymatic activity using a radiochemical assay. In this assay, no activity was detected either with rFAMeT alone or when added to a corpus allatum CA extract. Immunohistochemical analysis was used to confirm the presence of FAMeT in the CA of Drosophila melanogaster ring gland. Analysis of MF, JHIII and JHB3 release in wild type and mutant stocks in the presence and absence of Drome AST (PISCF-type) suggest that Drosophila FAMeT has little if any effect on sesquiterpenoid biosynthesis. Drome AST appears to have a select effect on JH bisepoxide biosynthesis and not MF or JHIII. Additional analysis of MF, JHIII and JHB3 release in strains with a deficiency or decrease of FAMeT compared to wild type shows no significant decrease in MF, JHIII or JH bisepoxide synthesis. Deficiency strains that reduce the level of FAMeT showed reduced longevity relative to wildtype but this result may be due to other genetic influences.

Stem cell research. Reports give green light in Australia, Israel.

BERLIN AND MELBOURNE--After 2 years of deliberation, an Australian government committee has endorsed legislation that would allow both human embryonic stem cell research and the derivation of ES cells from unwanted embryos created during fertility treatments. And in Israel, another country at the forefront of work on ES cells, a national bioethics committee has approved both the derivation of ES cells and research into therapeutic cloning.

Healing with humor. Clowns on call bring hugs and happiness.

Each year tens of thousands of children visit The Detroit Medical Center's Children's Hospital of Michigan as patients. Hundreds of thousands of orders are processed and even more prescriptions are written. This year rare and different kinds of orders and prescriptions are being written ... orders for Clowns-on-Call and prescriptions for laughter.

Symptomatic and puomonary response to acute phlebotomy in secondary polycythemia.

A double-blind study of the effects of phlebotomy was carried out in 18 patients with polycythemia secondary to severe hypoxemic lung disease. Eleven subjects underwent a single phlebotomy of 10 percent of their blood volume, and eight patients serving as controls underwent a sham procedure. Eight of the phlebotomized subjects, but none of the controls, reported subjective clinical improvement (P less than 0.005). Subjects who noted improvement after venesection had higher hematocrit readings than those who did not (P less than 0.02). Symptomatic relief seemed to be most dramatic in those with clinical evidence of congestive heart failure. In contrast to this clear-cut subjective improvement, phlebotomy did not alter objective indices of airway obstruction, lung elastic recoil, pulmonary gas exchange, or exercise tolerance in either the phlebotomized or the control group. Thus, although phlebotomy produced subjective benefit in the majority of patients studied, it was not associated with objective improvement in lung function or exercise tolerance.