Unraveling rapid start-up and stable maintenance of partial nitrification in domestic wastewater under high dissolved oxygen.

Partial nitrification (PN), is a promising nitrogen removal technology in wastewater treatment. Contrary to the dogma that low dissolved oxygen (DO) is more conducive to achieving PN, this study successfully established PN within 7 days under high DO conditions (> 6 mg/L). Ultra-stable PN was maintained over 143 days with an average nitrite accumulation ratio of 98 % treating real domestic wastewater.

FeNi decorated nitrogen-doped hollow carbon spheres as ultra-stable bifunctional oxygen electrocatalyst for rechargeable zinc-air battery with 2.7% decay after 300 hours cycling.

Research on non-noble metal bifunctional electrocatalysts with high efficiency and long-lasting stability is crucial for many energy storage devices such as zinc-air batteries. In this report, nitrogen-doped porous hollow carbon spheres with a size of about 300 nm were fabricated using a modified Stöber method and decorated with an FeNi alloy through a pyrolytic reduction process, resulting in a promising bifunctional electrocatalyst for both the oxygen evolution reaction and oxygen reduction reaction. The as-prepared FeNi@NHCS electrocatalyst exhibits excellent bifunctional activity in KOH electrolyte, attributed to its mesoporous structure, large specific surface area, and the strong coupling between the FeNi nanoalloy and nitrogen-doped carbon carriers.

Cubane-type tungsten-iron-sulfur clusters with a nitrogen atom in the core: terminal ligand substitutions and redox behaviors.

The lack of M-Fe-S (M = Mo or W) clusters incorporating a second period (2p) atom in the core has resulted in limited investigations and poor understanding of the physical and chemical properties of the M-Fe-S clusters closely related to the FeMo cofactor. In this work, systematic studies have been carried out to explore the chemical reactivities at the terminal ligand sites and the redox properties of a series of clusters comprising a [WFeSN] cubane core, based on the previously developed cluster [(Tp*)WFeS(μ-NSiMe)Cl]. Substitutions of the terminal chlorides with ethanethiolate, methanethiolate, thiophenolate, -thiocresolate and azide occurred smoothly, while the replacement of the chlorides with carbene ligands required the reduction of the precursor into [(Tp*)WFeS(μ-NSiMe)Cl] first.

Human defensin-inspired discovery of peptidomimetic antibiotics.

SignificanceWe report the development of peptidomimetic antibiotics derived from a natural antimicrobial peptide, human α-defensin 5. By engaging multiple bacterial targets, the lead compound is efficacious in vitro and in vivo against bacteria with highly inducible antibiotic resistance, promising a useful therapeutic agent for the treatment of infections caused by antibiotic-resistant bacteria.

Diabetic neuropathic pain induced by streptozotocin alters the expression profile of non-coding RNAs in the spinal cord of mice as determined by sequencing analysis.

Diabetic neuropathic pain (DNP) is one of the most serious complications of diabetes. Patients with DNP always exhibit spontaneous and stimulus-evoked pain. However, the pathogenesis of DNP remains to be fully elucidated.

Ultrasound-Guided Transmuscular Quadratus Lumborum Block Reduces Postoperative Pain Intensity in Patients Undergoing Total Hip Arthroplasty: A Randomized, Double-Blind, Placebo-Controlled Trial.

Methods: Eighty-eight patients undergoing THA were randomized to receive 0.33% ropivacaine (Group QLB,  = 44) or saline (Group Con,  = 44) for QL3 block. Spinal anesthesia was then performed.

Pulmonary function test findings in patients with acute inhalation injury caused by smoke bombs.

Background: This study aimed to determine the effects of smoke bomb-induced acute inhalation injury on pulmonary function at different stages of lung injury.

Methods: We performed pulmonary function tests (PFTs) in 15 patients with acute inhalation injury from days 3 to 180 after smoke inhalation. We measured the trace element zinc in whole blood on days 4 and 17, and correlations of zinc levels with PFTs were performed.

Pleural effusion complicating after Nuss procedure for pectus excavatum.

Purpose: The Nuss procedure is a minimally invasive method for the correction of pectus excavatum (PE). Pleural effusion complicating following the Nuss procedure was uncommon but may be critical. We evaluated the risk factors of postoperative pleural effusion after Nuss repair.

[The clinical analysis of mercury poisoning in 92 cases].

Objective: To summarize the clinical features of mercury poisoning diagnosed by blood and urine tests for improving the diagnosis and treatment of the disease.

Methods: Poisoning causes, clinical manifestations, diagnosis, treatment and prognosis were retrospectively reviewed in 92 in-patients with mercury poisoning in our hospital from January 2000 to April 2010.

Results: Of the 92 patients, 37 were male and 55 were female with an average age of 33.

Neurogenic pulmonary edema in head injuries: analysis of 5 cases.

Objective: To review the pathophysiology and study the diagnosis and clinical management of neurogenic pulmonary edema (NPE).

Methods: The data of 5 patients who developed NPE after head injury treated in our hospital form December 1995 to May 2003 were collected and analyzed.

Results: The patients developed dyspnea and respiratory failure 2-8 hours after neurologic event.

[The clinical efficacy of hemoperfusion in treatment of drug poisoning].

Objective: To investigate the ability of hemoperfusion to remove some drugs or toxin from the body and its clinical efficacy.

Methods: Sixty-nine cases of poisoning due to tetramine or other drugs poisoning in our hospital between July 1990 and December 2003 were studied. Thirty-four patients among them received conventional treatment (including early gastric lavage, hepatoprotection, diuresis or respiratory support), and the remaining were given conventional treatment and hemoperfusion.