Influence of sewage discharge on dissolved oxygen concentration and fish diversity in the Girado stream and Chascomús lake.

Hypoxic aquatic environments have increased in recent decades mainly by human activities that generate pollution. The objective of this work was to study the influence of the discharge of sewage effluents from Chascomús city on the concentration of dissolved oxygen (DO) in the Girado stream and its connection with Chascomús lake and analyze the impact on fish biodiversity. Four sites were selected to measure DO and temperature weekly for one year: discharge of sewage effluent, union of the sewage effluent with the Girado stream, Girado stream and Chascomús lake.

Patient satisfaction of specialist nurse-led renal cancer follow-up.

Background: For many patients with locally advanced renal cancer, management is surgery followed by surveillance imaging for several years. There is no concrete data regarding specialist nurse follow-up for patients after they have had surgery.

Aims: The authors' aim was to assess patient satisfaction with specialist nurse follow-up for patients with renal cancer who have undergone surgery.

Involvement of the open-source community in combating the worldwide COVID-19 pandemic: a review.

The ongoing COVID-19 pandemic is unprecedented in the modern age both due to its scale and its disruption to daily life throughout the world. Widespread social isolation and restrictions in the age of modern communicative technology, coupled with some early successes for makers, have united the open-source community towards a common goal in a way not previously seen. Local hospitals and care facilities are turning to makers to print essential consumable parts, such as simple visors, while in the hardest hit areas, critical pieces of medical technology are being fabricated.

Intermolecular potential calculations for polynuclear aromatic hydrocarbon clusters.

Calculations of intermolecular potentials are presented for homo-molecular and hetero-molecular clusters of 24 peri-condensed PAH spanning monomer masses ranging from 78 to 1830 Da. Binding energies of homo-molecular dimers rise rapidly with molecular size and asymptotically approach the experimentally established exfoliation energy for graphite of 5.0 kJ mol(-1) (carbon atom)(-1).

Acceptability of common screening methods used to detect distress and related mood disorders-preferences of cancer specialists and non-specialists.

A new questionnaire of clinicians' attitudes and practices in relation to screening for mood disorder was distributed to 300 cancer professionals (specialists and non-specialists) working across the UK. From 226 (75.3%) health professionals working in cancer care who responded, approximately two-thirds always or regularly attempted to detect mood disorder during consultations but a substantial minority relied on patients spontaneously mentioning an emotional issue.