Rapid and Non-Destructive Analysis of Corky Off-Flavors in Natural Cork Stoppers by a Wireless and Portable Electronic Nose.

This article discusses the use of a handheld electronic nose to obtain information on the presence of some aromatic defects in natural cork stoppers, such as haloanisoles, alkylmethoxypyrazines, and ketones. Typical concentrations of these compounds (from 5 to 120 ng in the cork samples) have been measured. Two electronic nose prototypes have been developed as an instrumentation system comprise of eight commercial gas sensors to perform two sets of experiments.

Graphene-Doped Tin Oxide Nanofibers and Nanoribbons as Gas Sensors to Detect Biomarkers of Different Diseases through the Breath.

This work presents the development of tin oxide nanofibers (NFs) and nanoribbons (NRs) sensors with graphene as a dopant for the detection of volatile organic compounds (VOCs) corresponding to different chronic diseases (asthma, chronic obstructive pulmonary disease, cystic fibrosis or diabetes). This research aims to determine the ability of these sensors to differentiate between gas samples corresponding to healthy people and patients with a disease. The nanostructures were grown by electrospinning and deposited on silicon substrates with micro-heaters integrated.

Effect of intravenous iron on functional outcomes in hip fracture: a randomised controlled trial.

Objectives: to determine the safety and effect of intravenous iron sucrose on functional outcomes, delirium, nosocomial infections and transfusion requirements in older patients with hip fracture.

Design: single-centre randomised, double-blind, placebo-controlled clinical trial.

Setting And Participants: orthogeriatric share care service at an academic tertiary care hospital.

Impact of a patient blood management program within an Orthogeriatric care service.

Background: Patient blood management (PBM) performs multidisciplinary strategies to optimize red blood cell (RBC) transfusion. Orthogeriatric share care models (surgeon and geriatrician manage the patient together from admission) have the goal of improving outcomes in hip fracture patients.

Material And Methods: A prospective observational study was conducted.

[Assessment of clinical complications and their associated factors in hip-fracture patients in an Acute Geriatric Orthopaedic Unit].

Introduction: The incidence of clinical complications in hip fracture (HF) patients is high and variable due to their heterogeneous nature. The aim of the study was to assess the clinical complications and their associated factors in HF patients admitted to the Orthopaedic Geriatric Unit of a 283 bed University Hospital. An average of 200 HF patients is attended yearly.

Reactive species and apoptosis of neural precursor cells after gamma-irradiation.

This study addresses the participation of radiation-induced free radicals, mainly nitric oxide (NO), in modulating the apoptotic response in an in vitro model of neural cortical precursor cells exposed to gamma-radiation. Cortical cells obtained from rats at 17 gestational day (GD) were irradiated with a dose of 2 Gy. The percentage of apoptotic cells was significantly increased 4h post-irradiation (pi).

Biphenotypic acute leukemia with t(15;17).

Biphenotypic acute leukemias (BAL) represent 5% of all acute leukemias. The most frequent cytogenetic abnormalities described are Philadelphia chromosome and 11q23 involvement. Here we report a BAL case, with blasts showing lymphoblast morphology and positivity for myeloperoxidase (in 6% of the blast cells).

Signaling capacity of FcgammaRII isoforms in B-CLL cells.

Two main isoforms of Fcgamma receptor II (CD 32) have been described in humans: activatory FcgammaRIIA and inhibitory FcgammaRIIB. We have previously reported that B cells from a subset of chronic lymphocytic leukemia (B-CLL) patients express not only FcgammaRIIB, as normal B lymphocytes, but also the myeloid FcgammaRIIA. The aim of this study was to evaluate the signaling capacity of both FcgammaRII isoforms in B-CLL cells.

Acidosis improves uptake of antigens and MHC class I-restricted presentation by dendritic cells.

It is widely appreciated that inflammatory responses in peripheral tissues are usually associated to the development of acidic microenvironments. Despite this, there are few studies aimed to analyze the effect of extracellular pH on immune cell functions. We analyzed the impact of acidosis on the behavior of dendritic cells (DCs) derived from murine bone marrow.

Dramatic changes in the magnetic coupling mechanism for La-doped CaMnO3.

The exchange interactions in polycrystalline samples of Ca1-xLaxMnO3 (0.00< or =x< or =0.05) are studied by means of Raman scattering and electron paramagnetic resonance.

Dissolution of cholesterol ductal stones in the biliary tree with medium-chain glycerides.

In vitro and in vivo experiments were carried out with medium-chain glycerides. In vitro, cholesterol gallstones were rapidly dissolved by medium-chain glycerides; control experiments with saline solution failed to modify the size of the stones. In vivo, medium-chain glycerides were instilled through an intraductal tube in 12 patients with retained bile duct stones.