How real is a virtual interview? Perspectives of orthopaedic surgery residency directors.

OBJECTIVE: As a result of COVID-19 pandemic, the 2021 US residency MATCH was devoid of the traditional in-person interviews. Herein, we assess the impact of Virtual Interviews (VIs) on resident selection, from the perspectives of Orthopedic Surgery (OS) Program Directors (PDs). MATERIALS AND METHODS: A 14-item survey was sent to PDs of ACGME-accredited OS residencies. Questions were designed to assess the pros, cons, and robustness of VIs compared to their antecedent in-person format. RESULTS: Forty-seven PDs responded to our survey. VIs antagonized PDs' ability to assess applicants' fit to program (76.6%), commitment to specialty (64%), and interpersonal skills (68.1%). This led to heavier dependence upon applicants' portfolios (64%). Almost all respondents (97.9%) found VIs to be more cost-efficient, saving a median of $3000 in interview-related expenses. Overall, only 8.5% of PDs were willing to conduct exclusive VIs in future cycles, compared to the majority in favor of dual formats (51.5%) or exclusive in-person interviews (40.4%). CONCLUSIONS: VIs have been an overall success, making most PDs opt for dual interview formats in future cycles. How this technology is further implemented in the future remains to be seen.

The therapeutic potential of targeting ACE2 in COVID-19.

OBJECTIVE: ACE2 long served as the human gateway for multiple coronaviruses, including the currently pandemic SARS-CoV-2. This mini-review explores the potential of targeting ACE2 in blocking viral penetrance. MATERIALS AND METHODS: PubMed search was conducted using the terms: "coronaviridae", "peptidyl-dipeptidase A", "ACE2", "SARS", and "SARS-CoV-2". References of relevant articles were further screened by the author. RESULTS: Four main methods of blocking ACE2-mediated viral penetrance were identified: receptor blockage, receptor decoying, receptor shedding, and co-receptor inhibition. CONCLUSIONS: Drugs that inhibit viral binding to ACE2 present a strong choice for the current, and if necessary, future outbreaks. Further research is needed to establish the clinical and pharmacological aspects of the identified candidate molecules.

Separation and preconcentration in a batch mode of Cd(II), Cr(III, VI), Cu(II), Mn(II, VII) and Pb(II) by solid-phase extraction by using of silica modified with N-propylsalicylaldimine.

The complexes formed between IE11 and Cd(II), Cr(III), Cu(II), Mn(II) and Pb(II) were identified and confirmed by IR, UV and pH-metric titration. The uptake behavior of porous silica modified with N-propylsalicylaldimine (IE11) and these metal ions were studied. Log k(d) was found to be within the range 2.19-5.16 depending on pH and time of stirring. IE11 was used in the separation and preconcentration of Cd(II), Cr(III, VI), Cu(II), Mn(II, VII) and Pb(II) from some natural water samples. Data were compared with those obtained by the solvent extraction method APDC/MIBK. The proposed methodology allows to verify an improvement in the water quality of Nile River probably attributed to high to moderate floods in the last few years. The method was found to be accurate and not subject to random error, i.e. precise.