Lymph node ratio (LNR) and lymph node yield (LNY) in head and neck cancer: A systematic review and meta-analysis.

Introduction: A growing amount of evidence points at lymph node yield (LNY) and lymph node ratio (LNR) as useful indicators in the prognostic evaluation of patients affected by head and neck squamous cell carcinoma (HNSCC) who require neck dissection. The aim of this study was to assess the importance of LNY and LNR in the prognostic evaluation of head and neck cancer patients.

Materials And Methods: Included studies were those examining LNY and/or LNR in head and neck cancer patients.

Schwannomas of the upper limb: Clinical presentation, preoperative management and outcomes of surgical treatment.

Schwannomas are the most common tumors of the peripheral nervous system. Surgical eradication with excision or enucleation is the treatment for symptomatic and large schwannomas.

Modulation of memory by prism adaptation in healthy subjects.

Recent findings suggest that prism adaptation can extend its effects beyond spatial attention, modulating the performance of different cognitive tasks by acting on cerebellar, parietal and temporal-frontal networks. We tested groups of healthy subjects to investigate the effects of rightward vs. leftward prism adaptation vs.

Self-healing, piezoresistive and temperature responsive behaviour of chitosan/polyacrylic acid dynamic hydrogels.

Flexible electronics have introduced new challenges for efficient human-machine interactions. Hydrogels have emerged as prominent materials for electronic wearable applications due to their exceptional mechanical deformability and lightweight characteristics combined in some cases with conductive properties, and softness. Additionally, bio-interphases require multisensory response to stress, strain, temperature, and self-healing capacity.

Assessing the Limit of CO Storage in Seawater as Bicarbonate-Enriched Solutions.

The dissolution of CO in seawater in the form of bicarbonate ions is an attractive alternative to storage in geological formations, on the condition that the storage is stable over long periods and does not harm the marine environment. In this work, we focus on the long-term chemical stability of CO absorbed in seawater as bicarbonate by monitoring the physico-chemical properties of the solutions (pH, dissolved inorganic carbon and alkalinity) in six different sets of experiments on both natural and artificial seawater lasting up to three months. The bicarbonate treatment of natural seawater consists of mixing it with pre-equilibrated solutions obtained from the reaction of CO and Ca(OH), with the same pH as natural seawater.