Atomically dispersed dinuclear iridium active sites for efficient and stable electrocatalytic chlorine evolution reaction.

The electrochemical chlorine evolution reaction (CER) is a critical anode reaction in chlor-alkali electrolysis. Although precious metal-based mixed metal oxides (MMOs) have long been used as CER catalysts, they suffer from high cost and poor selectivity due to the competing oxygen evolution reaction (OER). Single-atom catalysts (SACs), featuring high atom utilization efficiency, have captured widespread interest in diverse applications.

Stabilization of the Active Ruthenium Oxycarbonate Phase for Low-Temperature CO Methanation.

Interstitial carbon-doped RuO catalyst with the newly reported ruthenium oxycarbonate phase is a key component for low-temperature CO methanation. However, a crucial factor is the stability of interstitial carbon atoms, which can cause catalyst deactivation when removed during the reaction. In this work, the stabilization mechanism of the ruthenium oxycarbonate active phase under reaction conditions is studied by combining advanced operando spectroscopic tools with catalytic studies.

[Post-cesarean acute aortic dissection in a Marfan syndrome patient].

Marfan syndrome is an uncommon condition in pregnancy. We present the case of 37 years old gravida 1, para 1 with Marfan syndrome. She delivered at term by cesarean section, a healthy male infant weighing 3500 grams with Apgar's of 9.

[Postoperative upper gastrointestinal bleeding in patients with cardiovascular surgery].

Unlabelled: Patients with cardio-vascular surgery are at risk for upper digestive bleeding due to several factors.

Aim: To determine the utility of medication and endoscopy in preventing gastrointestinal bleeding (GB) after cardiovascular surgery.

Material And Method: 79 patients (60 males and 19 women, mean age 61 +/- 16.

[Five years of kidney transplantation in Iaşi].

The activity of Renal Transplant Center Iaşi started in November 2000, when we realized the first renal transplant from a live donor. Since then, 46 renal transplants were successfully realized in our center, to patients aged between 13-47 years (medium age = 30 +/- 5), M/F=27/19, 25 (56.8%) of them selected from HD, 17 (39.

Morphological evaluation of the surgically removed aortic and mitral valves.

In 2001, of the 114 valves surgically excised at the Iaşi Center of Cardiology from 59 men and 54 women (mean age 51 years; age range: 25 to 78 years), half were aortic and the other half mitral valves. The 57 aortic valves, from 20 women and 37 men (mean age 51.1; age range 25 to 78 years), had been surgically replaced.

[Morphologic and clinical correlations in medullar thymoma].

The medullar thymoma is a rare and distinctive epithelial thymoma, a thymic tumor characterized histologically by a mixture of spindle epithelial cells and lymphoid cells. We are presenting this tumor to a 68 years old man, admitted at CCI, for a mediastinal tumor, treated by tumorectomy, for revealing the cytological, histological and immunohistochemical characteristic features. The surgical biopsy was prepared by using usual histological techniques and haematoxilin eosin and Van Gieson stainings.

[Efficiency criteria for endoscopic diagnostic in upper gastrointestinal bleeding].

Endoscopy plays a major role in the evaluation of upper digestive haemorrhage. We evaluate the difficulties in the introduction of emergency endoscopy in a period of transition, regarding mentalities and errors generated by the learning curve. The study includes 512 consecutive patients admitted with upper gastrointestinal haemorrhage.

Presence of viral and inframicrobial germs detected by immunofluorescence reaction in 0-5-year-old children with acute respiratory infections.

The presence of viral and/or inframicrobial antigens was investigated by the immunofluorescence (IF) technique in exfoliated pharyngeal cells collected from 85 children aged 0-5 years, with acute infections of the upper or lower respiratory tract. Positive IF reactions were recorded in 83% of the children with bronchopneumonia, 81.8% of those with acute pharyngitis, 77.