The purified water is compared with its original source, as well as a reference sample from the tap. Photo: KTH Royal Institute of Technology

What can the forests of Scandinavia possibly offer to migrants in faraway refugee camps? Clean water may be one thing. A bacteria-trapping material developed from wood by researchers KTH Royal Institute of Technology is now being tested for use as a water purification filter. The aim is to use it in places where there is no infrastructure or clean water supply. The material, which combines wood cellulose with a positively-charged polymer, can trap bacteria by attracting and binding the bacteria to the material surface. It shows promise for bandages, plasters and packaging that kill bacteria without releasing toxins into the environment. Led by Professor Monica Ek, the Swedish research team is investigating whether the material can enable portable on-site water treatment where no facilities or wells exist to meet demand.

Pubblicata su Microbiome una ricerca di Fondazione Edmund Mach, Istituto di biometeorologia del Cnr, Università di Firenze, Innsbruck, Venezia. Studiando la polvere sahariana depositata e ‘sigillata’ sulla neve delle Alpi dolomitiche, sono state identificate migrazioni di microorganismi dalle aree sahariane. Si tratta di uno degli effetti del cambiamento climatico e dell’uso del suolo

Il cambiamento climatico e l’uso del suolo stanno provocando migrazioni che non si possono fermare, quelle dei microorganismi. Un team multidisciplinare di microbiologi, geologi, chimici e bioclimatologi di Fondazione Edmund Mach di San Michele all’Adige, Istituto di biometeorologia del Consiglio nazionale delle ricerche (Ibimet-Cnr) , Università di Firenze, Venezia e Innsbruck, ha studiato la carica microbica di uno tra i più intensi eventi di trasporto di polveri sahariane che ha raggiunto le Alpi nel 2014, pubblicando i risultati sulla prestigiosa rivista Microbiome.

Drinking horns were status symbols and widely used as gifts, both in the Middle Ages and in the centuries after the Reformation. The picture shows one of the few drinking horns that have remained in Icelandic possession, called the "Three kings horn." It shows Saint Olav juxtaposed with Old Testament kings Solomon and David. Photo: National Museum of Iceland

After the Reformation, Norway's Olav Haraldsson was no longer supposed to be worshipped as a saint. An Icelandic drinking horn offers some clues on how the saint’s status changed over time. Drinking horns were considered valuable objects, and were imbued with great symbolic value in the Middle Ages. Among other things, it was said that these kinds of horns came from the foot or claw of the fabled griffin. Drinking horns often had names, and were status symbols and collector’s items. Some were stolen and many ended up in princely cabinets. “Mediaeval drinking horns are scattered in collections throughout northern Europe. They were coveted collectibles. Mediaeval art often remained in churches until it went out of fashion or was removed due to errors in iconography, whereas drinking horns ended up in princely collections and cabinets and have kept their status to the present day,” says Associate Professor Margrethe Stang, from the Norwegian University of Science and Technology’s (NTNU) Department of Art and Media Studies.

Antarctica. Photo: Pablo Ruiz, Instituto Antártico Chileno (INACH)

For over 70 years seven different countries have claimed sovereignty over parts of Antarctica. But are these claims legitimate? This issue is now going to be considered by a group of philosophers. Queen Maud's Land constitutes one sixth of Antarctica, and Norway has claimed this territory since 1939, but this has never been approved by the rest of the world. The same applies to the claims of six other countries; New Zealand, Australia, France, Great Britain, Chile and Argentina have all made territorial claims over different parts of Antarctica. All of these countries also believe that they have an entitlement to the South Pole. A group of philosophers from Norway, Ireland, Canada, Australia, the United Kingdom and Chile are now getting to grips with this matter. They believe that it is high time to look at these claims from a moral point of view.

The American Society of Clinical Oncology (ASCO) today issued a clinical practice guideline on human papillomavirus (HPV) vaccination for the prevention of cervical cancer. This is the first guideline on primary prevention of cervical cancer that is tailored to multiple regions of the world with different levels of socio-economic and structural resource settings, offering evidence-based guidance to health care providers worldwide. The guideline includes specific recommendations according to four levels of resource settings: basic, limited, enhanced and maximal. The levels pertain to financial resources of a country or region, as well as the development of its health system — including personnel, infrastructure and access to services. The guideline complements ASCO’s two other global, resource-stratified guidelines on cervical cancer, also stratified to these four levels of resources.1,2

Patients with recurrent fainting episodes (syncope) who received a pacemaker delivering a pacing program designed to detect and stop the abnormal heart rhythms that precede syncope had a seven-fold reduction in fainting compared with patients in a placebo pacing group, according to research presented at the American College of Cardiology’s 66th Annual Scientific Session. The study—the first prospective double-blind placebo-controlled trial to show robustly positive results for the pacing program, known as Closed Loop Stimulation (DDD-CLS), in patients with recurrent syncope—met its primary endpoint of a significant reduction in fainting episodes with DDD-CLS compared to placebo pacing.

Lo “Smartflower”, è un innovativo impianto fotovoltaico ideato e realizzato da Alexander Seatek. E’ una sorta di fiore meccanico “intelligente”, che si comporta proprio come un girasole: al tramonto o in condizioni di forte vento, per evitare danneggiamenti, i suoi petali restano in posizione di riposo, ma all’alba, si riaprono automaticamente, a ventaglio, e formano una corolla che segue i raggi del sole, li incamera e li trasforma in preziosa energia elettrica pulita. Anche in presenza di tempo nuvoloso, però, il “fiore” hi-tech è in grado di svolgere la sua funzione.

In questi ultimi giorni la rete italiana di malattie infettive sta registrando un incremento di pazienti giovani adulti (età 15-35 anni) che si ricovera in ospedale con un morbillo in fase acuta. Nel mese di gennaio di quest’anno i casi di morbillo segnalati sono stati tre volte più numerosi rispetto al gennaio 2016. E questo nonostante esista una vaccinazione estremamente efficace in grado di prevenire la comparsa della malattia. “Per l’esattezza, il Ministero della Salute ha rilevato ben 238 casi soltanto nel mese di gennaio 2017, contro i 77 osservati nello stesso mese dello scorso anno. La maggior parte dei casi si è verificata in Piemonte, Lombardia, Lazio e Toscana. È il dato più alto osservato in gennaio dal 2013, l’anno in cui il morbillo ha iniziato a ridare segno di sé nel Paese ” dichiara il Prof. Massimo Galli, Vicepresidente SIMIT, Professore Ordinario di Malattie Infettive all'Università di Milano. Nel 2016, infatti, erano stati denunciati 844 casi di morbillo, spesso in adulti e con forme gravi per alcune delle quali si è reso necessario un ricovero ospedaliero. “Solo in gennaio, quindi, abbiamo già avuto più di un quarto dei casi visti durante tutto l’anno scorso” continua il prof. Galli. Il fatto che molte persone abbiano dovuto ricorrere al ricovero  testimonia che “il decorso può essere particolarmente grave, tanto che in alcuni casi è stato necessario ricorrere alla terapia intensiva” afferma il Prof. Massimo Andreoni, Past President SIMIT e Professore Ordinario di Malattie Infettive all’Università Tor Vergata di Roma. “Ogni anno il morbillo determina la morte di diverse decine di migliaia di persone nel mondo; questa crescente diffusione in Italia non può essere sottovalutata”.

Boran Cattle in Africa

A ‘world-first’ study of the genomes of indigenous cattle in Africa has revealed vital clues that will help secure the future of cattle production on the continent. Cattle are an increasingly important resource in Africa as sustainable sources of food, milk, traction and manure. With its human population growing and the economy and subsequent wealth predicted to expand greatly, there will also be a huge increase in demand for livestock. Now Professor Olivier Hanotte from The University of Nottingham and the International Livestock Research Institute (ILRI) in Ethiopia, with Professor Heebal Kim from Seoul National University, have mapped the genomes of five breeds of African cattle and discovered some unique genetic adaptations that could inform and improve future breeding programs. The research is published in the journal Genome Biology.

Cells infected by the deadly Ebola virus may release viral proteins such as VP40 packaged in exosomes, which, as new research indicates, can affect immune cells throughout the body impairing their ability to combat the infection and to seek out and destroy hidden virus. The potential for exosomal VP40 to have a substantial impact on Ebola virus disease is examined in a review article published in DNA and Cell Biology, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is available free on the DNA and Cell Biology website until April 13, 2017.