Publications by authors named "Clyde C"

Article Synopsis
  • - The global production of radioactive waste is rising due to increased nuclear power adoption, making it crucial to find effective remediation methods to mitigate risks to human health and wildlife from radionuclides in the environment.
  • - The review highlights various remediation approaches, including physical, chemical, and especially microbe-mediated techniques, which utilize bacteria, fungi, and algae to manage radionuclide contamination through processes like bioreduction and biosorption.
  • - A SWOT analysis of microbial remediation points to the potential for advancements in radiation-resistant microorganisms and the need for combined approaches in remediation strategies.
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Background: Pain following surgery for cardiac disease is ubiquitous, and optimal management is important. Despite this, there is large practice variation. To address this, the Paediatric Acute Care Cardiology Collaborative undertook the effort to create this clinical practice guideline.

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The presented analytical method enabled the Toxicology Department at the Cuyahoga County Medical Examiner's Office to identify 26 and quantitatively report 24 compounds in 500 μL of whole blood, including fentanyl analogues (fentalogues) such as methoxyacetyl fentanyl (MeOAF) and cyclopropyl fentanyl (CPF). This second-generation method (FG2) was developed with the objective to improve the existing analysis (FG1) by decreasing sample size, lowering limits of detection (LOD) and lower limit of quantitation, minimizing ion suppression and resolving chromatographic interferences. Interferences may occur in the analysis of fentanyl, MeOAF, CPF, 3-methylfentanyl (3MF), butyryl fentanyl and isobutyryl fentanyl due to isobars and structural or geometric isomerism with another analogue or metabolite.

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Background: Fatalities from opioid overdose quadrupled during the last 15 years as illicit opioid use increased. This study assesses how stigma and drug use settings are associated with non-fatal overdose to identify targets for overdose risk reduction interventions and inform overdose education and naloxone distribution programs.

Methods: We surveyed 444 people who used drugs in Baltimore, Maryland, USA, from 2009 to 2013 as part of a randomized clinical trial of a harm reduction intervention.

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Non-Hispanic Black/African American men who have sex with men (AAMSM) have been disproportionately affected by criminal justice (CJ) involvement and HIV. One potential pathway between CJ involvement and high HIV prevalence and incidence among AAMSM is through risky sexual behavior. The goal of this study was to explore the association between recent CJ involvement, i.

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Background: Despite promising findings of opioid overdose education and naloxone distribution (OEND) programs, overdose continues to be a major cause of mortality. The "cascade of care" is a tool for identifying steps involved in achieving optimal health outcomes. We applied the cascade concept to identify gaps in naloxone use.

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For AO 44-B2 ankle fractures of uncertain stability, the current diagnostic standard is to obtain a gravity stress radiograph, but some have advocated for the use of weight-bearing radiographs. The primary aim was to compare measures of medial clear space (MCS) on weight-bearing cone beam computed tomography (CBCT) scans versus gravity stress radiographs for determining the state of stability of ankle fractures classified as AO SER 44-B2 or Weber B. The secondary aim was to evaluate the details offered by CBCT scans with respect to other findings that may be relevant to patient care.

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Background: Determining optimal timing of reimplantation during 2-stage exchange for periprosthetic joint infection (PJI) remains elusive. Joint aspiration for synovial white blood cell (WBC) count and neutrophil percentage (PMN%) before reimplantation is widely performed; yet, the implications are rarely understood. Therefore, this study investigates (1) the diagnostic yield of synovial WBC count and differential analysis and (2) the calculated thresholds for persistent infection.

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Background: One potential avenue for the realization of health care savings is reduction in hospital length of stay (LOS). Initiatives to reduce LOS may also reduce infection and improve patient satisfaction. We compare LOS after shoulder arthroplasty at an orthopedic specialty hospital (OSH) and a tertiary referral center (TRC).

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Aims: Currently, there is little information about the need for peri-operative blood transfusion in patients undergoing shoulder arthroplasty. The purpose of this study was to identify the rate of transfusion and its predisposing factors, and to establish a blood conservation strategy.

Methods: We identified all patients who had undergone shoulder arthroplasty at our hospital between 1 January 2011 and 31 December 2013.

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The rate of peri-prosthetic infection following total joint replacement continues to rise, and attempts to curb this trend have included the use of antibiotic-loaded bone cement at the time of primary surgery. We have investigated the clinical- and cost-effectiveness of the use of antibiotic-loaded cement for primary total knee replacement (TKR) by comparing the rate of infection in 3048 TKRs performed without loaded cement over a three-year period versus the incidence of infection after 4830 TKRs performed with tobramycin-loaded cement over a later period of time of a similar duration. In order to adjust for confounding factors, the rate of infection in 3347 and 4702 uncemented total hip replacements (THR) performed during the same time periods, respectively, was also examined.

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Clinicians identify patients receiving Workers' Compensation (WC) as unlikely to fully benefit from total joint arthroplasty (TJA), with possibly decreased ability to return to work. We completed follow-up for 164 patients undergoing 177 arthroplasties while receiving WC between 2000 and 2009. Inquiry was made regarding work status, nature of work, and return to work time frame.

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Study Design: Prospective comparative study.

Objective: To determine whether dysphagia is a unique complication of anterior neck dissection or whether it occurs after any cervical surgery.

Summary Of Background Data: Dysphagia is a common complication after anterior cervical discectomy and fusion.

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Background: Surgical management of acute appendicitis remains one of the most frequent problems faced by gastrointestinal surgeons. Traditional management has emphasized urgent surgical care. Recent literature suggests delayed surgery for acute appendicitis does not affect outcome.

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Background: The role of laparoscopy for total abdominal colectomy (TAC) and total proctocolectomy (TPC) has been controversial given its technical difficulty, high conversion rate, and complication rate. Recent studies have documented its efficacy for experienced laparoscopic surgeons. The outcomes of a prospective series of patients undergoing TAC and TPC are presented.

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Background: We report the findings from the first large, double-blind, placebo-controlled study conducted to evaluate the efficacy and safety of risperidone in the treatment of psychotic and behavioral symptoms in institutionalized elderly patients with dementia.

Method: 625 patients (67.8% women; mean age = 82.

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Cisapride is a substituted piperidinyl benzamide. It is chemically related to metoclopramide but lacks the antidopaminergic properties of metoclopramide that affect the central nervous system and cause extrapyramidal side effects. Cisapride is indicated for the symptomatic treatment of patients with nocturnal heartburn due to gastroesophageal reflux disease.

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Objective: We evaluated the efficacy and safety of a twice-daily dosage regimen of cisapride 20 mg in relieving the symptoms of mild-moderate gastroesophageal reflux disease (GERD) in patients with moderate intensity heartburn and no history of erosive esophagitis.

Methods: After a 2-wk, single-blind, placebo run-in period, 398 patients who continued to experience moderate intensity heartburn were randomized to either placebo (n = 196) or cisapride 20 mg (n = 202) twice daily for 4 wk.

Results: Compared with placebo, cisapride significantly reduced scores for daytime and nighttime heartburn (p < 0.

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Sixty-five cocaine-dependent subjects were enrolled into a 10-week randomized, double-blind study to determine the safety and efficacy of the serotonin-2 receptor antagonist, ritanserin (10 mg/day), in reducing cocaine consumption and craving. All subjects also participated in a structured intensive outpatient psychosocial program. Seventy-three percent of the participants completed the treatment program and follow-up.

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The efficacy and safety of risperidone have previously been demonstrated in controlled clinical trials in hospitalized chronic schizophrenia patients who met strict research criteria. The present study was designed to evaluate the efficacy and safety of risperidone in a heterogeneous patient population. Patients were enrolled in the study if they had a diagnosis of schizophrenia (DSM-III-R) with or without acute exacerbation.

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Four hundred and twenty-three alcohol dependent subjects were enrolled into a 12-week randomized, double-blind, placebo-controlled study to determine the safety and efficacy of the 5-HT2 receptor antagonist, ritanserin (2.5 mg/day or 5 mg/day), in reducing alcohol intake and craving. All subjects received 1 week of single-blind placebo prior to randomization into the 11-week double-blind phase.

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The substantia nigra pars reticularis (SNPR) of rats is highly susceptible to both seizure- and ischaemia-mediated damage. Hyperglycaemic exacerbation of brain damage similar to that observed after global brain ischaemia may also occur in rats with status epilepticus. We tested the hypotheses that hyperglycaemia exacerbates seizure-induced SNPR damage in rats and that SNPR lesions develop rapidly post-seizure.

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Purpose: This study was prepared to address two objectives: (a) to determine whether progressively higher total doses of hepatic irradiation can prolong survival in a selected population of patients with liver metastases; (b) to refine existing concepts of liver tolerance for fractionated external radiation employing a fraction size which might be appropriate in clinical protocols evaluating elective or adjuvant radiation of the liver.

Methods And Materials: One hundred seventy-three analyzable patients with computed tomography measurable liver metastases from primary cancers of the gastrointestinal tract were entered on a dose escalating protocol of twice daily hepatic irradiation employing fractions of 1.5 Gy separated by 4 hr or longer.

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Chinese hamster ovary cells (CHO) were co-transfected with pSV2neo and sheared DNA from either a human cell line (HT29) expressing high levels of O6-alkylguanine-DNA alkyltransferase (AGT) or from a cell line (BE) deficient in this activity. Cells expressing the selectable marker were obtained by exposure to G418 and colonies resistant to alkylation damage isolated by growth in the presence of 1-(2-chloroethyl)-3-cyclohexyl-1-nitrosourea (CCNU). The number of colonies of cells expressing AGT activity arising after transfection with DNA from BE cells was similar to the number arising from cells exposed to HT29 DNA.

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