Posts

September 17, 2014

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12:00 PM | Should I Stay Or Should I Go
Biology concepts – bacteria, motility, flagella, quorum sensing, bacterial swarming, biofilms, pathogenesisNomads are wanderers. They come in different flavors. Hunter-gatherers follow the animals as they graze in different places. Pastoral nomads have animal herds and move them around to where the grazing is best. But the interesting ones are the peripatetic nomads. These are people that move around within cities and other populated areas, often to sell services or trades. Romanis, or […]

Gloag ES, Turnbull L, Huang A, Vallotton P, Wang H, Nolan LM, Mililli L, Hunt C, Lu J, Osvath SR & Monahan LG (2013). Self-organization of bacterial biofilms is facilitated by extracellular DNA., Proceedings of the National Academy of Sciences of the United States of America, 110 (28) 11541-6. PMID: http://www.ncbi.nlm.nih.gov/pubmed/23798445

Deng P, de Vargas Roditi L, van Ditmarsch D & Xavier JB (2014). The ecological basis of morphogenesis: branching patterns in swarming colonies of bacteria., New journal of physics, 16 15006-15006. PMID: http://www.ncbi.nlm.nih.gov/pubmed/24587694

McCall J, Hidalgo G, Asadishad B & Tufenkji N (2013). Cranberry impairs selected behaviors essential for virulence in Proteus mirabilis HI4320., Canadian journal of microbiology, 59 (6) 430-6. PMID: http://www.ncbi.nlm.nih.gov/pubmed/23750959

Alteri CJ, Himpsl SD, Pickens SR, Lindner JR, Zora JS, Miller JE, Arno PD, Straight SW & Mobley HL (2013). Multicellular bacteria deploy the type VI secretion system to preemptively strike neighboring cells., PLoS pathogens, 9 (9) PMID: http://www.ncbi.nlm.nih.gov/pubmed/24039579

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11:26 AM | New Comprehensive Account of Everything about Tuatara
Alison Cree, one of the leading researchers on tuatara, has written a comprehensive account of everything we know–and would like to know–about toots. The book not only covers ecology, evolution, behavior, physiology and so on, but also the history of knowledge of tuatara as well as details on how they were perceived by the Maori. […]
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11:11 AM | Test di etica per robot
“Un robot non può causare danno a un essere umano, né permettere che, a causa del proprio mancato intervento, un essere umano riceva danno”. È la prima legge della robotica, enunciata oltre settant’anni fa – dunque in tempi non sospetti – dal celebre scrittore di fantascienza Isaac Asimov. Sembra abbastanza chiara, stringente e senza possibilità di equivoco. Eppure, come mostrò lo stesso Asimov, l’inghippo è dietro […]
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11:00 AM | Hittin’ the Buffers
  Gel electrophoresis, or ‘running a gel’ is the ‘bread ‘n butter’ of any molecular biology lab – the ‘stock ‘n trade’ of the Life Sciences – the ‘meat ‘n two veg’ of …..okay, okay – you get the picture. Basically gel electrophoresis works by sieving DNA through the pores of an agar jelly and separates […]
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10:56 AM | Update: New Pest & Disease Records (17 Sep 14)
We’ve selected a few of the latest new geographic, host and species records for plant pests and diseases from CAB Abstracts. Records this fortnight include the  first report of Fusarium wilt in blueberry caused by Fusarium oxysporum in China, a new species of Beamerana from southeastern Brazil and new records of plant parasitic nematodes from rhizosphere […]
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9:28 AM | Una milza artificiale per depurare il sangue
Le infezioni sanguigne possono rivelarsi estremamente difficili da curare, e possono degenerare nella setticemia, la risposta dell'organismo all'invasione da parte di microrganismi patogeni, spesso fatale. In più del 50% dei casi, i medici non riescono a diagnosticare le cause dell'infezione che ha provocato la setticemia, e sono costretti a ricorrere ad antibiotici a largo spettro che mirano ad eliminare diversi tipi di batteri. Questo approccio, tuttavia, non ha sempre l'effetto […]
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9:00 AM | Antibiotic resistance: Move the money (and control it)!
The BBC Radio4 program Discovery had a two-part series (August 18 and 25th) on the real health danger that we face and the research challenge it presents.  No, not Big Data mapping of diabetes or cancer, or athletic ability or intelligence.  Instead, they were about an impending biomedical disaster, one that essentially trivializes much of which we are throwing away resources on: antibiotic resistance. Growing antibiotic resistance seems to be imminent or at least inevitable, […]
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8:27 AM | Trattamenti di fine vita, a che punto siamo?
Una leggenda racconta che sull'isola di Delo non si poteva né nascere né morire. Una decisione della dea Atene stabilì che l'isola non sarebbe mai stata abitata da esseri umani: alle donne era vietato partorire sull'isola sacra e i defunti venivano trasportati nella vicina isola di Rinia. Fuori dal mito l'Italia sembra essere una moderna isola di Delo, almeno per quanto riguarda le decisioni in tema di fine vita. A dimostrare lo stato di limbo in cui giace il nostro Paese […]
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6:30 AM | Pick of the science pics at the London Film Festival 2014
Audiences with an appetite for films inspired by science will have their thirst well and truly quenched by this year’s BFI London Film Festival which opens on 8th October with the Alan Turing biopic, The Imitation Game. We are delighted that three Wellcome Trust-supported films are part of the festival, which sees thirty films in […]
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6:00 AM | PHOTO DU BoB-237
No summary available for this post.
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5:26 AM | Concurso fotográfico “Ciencia en un click” (Santa Fe, Argentina)
Incentivar la imaginación y la creatividad en torno a la ciencia y la tecnología es el objetivo del concurso organizado por la Subsecretaría de Apropiación Social de la Secretaría de Estado de Ciencia, Tecnología e Innovación de la provincia de Santa Fe (Argentina). El desafío está destinado a los jóvenes en edad escolar pertenecientes a los niveles primarios, secundarios y escuelas técnicas, así como a […]
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2:56 AM | Happy Birthday to the man who found life slipping away from his fingers
“In my quest for the secret of life I started my research in histology. Unsatisfied by the information that cellular morphology could give me about life, I turned to physiology. Finding physiology too complex, I took up pharmacology. Still finding the situation too complicated, I turned to bacteriology. But bacteria were even too complex, so I descended to the molecular level, studying chemistry and physical chemistry. After twenty years' work, I was led to conclude that to understand […]
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2:15 AM | Colon cancer, mathematical time travel, and questioning the sequential mutation model.
On Saturday, I arrived in Columbus, Ohio for the the MBI Workshop on the Ecology and Evolution of Cancer. Today, our second day started. The meeting is an exciting combination of biology-minded mathematicians and computer scientists, and math-friendly biologist and clinicians. As is typical of workshops, the speakers of the first day had an agenda […]

Baker AM, Cereser B, Melton S, Fletcher AG, Rodriguez-Justo M, Tadrous PJ, Humphries A, Elia G, McDonald SA, Wright NA & Simons BD (2014). Quantification of crypt and stem cell evolution in the normal and neoplastic human colon., Cell reports, 8 (4) 940-7. PMID: http://www.ncbi.nlm.nih.gov/pubmed/25127143

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September 16, 2014

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11:00 PM | Sharks Act Like Math Geniuses
Sharks might not win any prizes for smarts, but they often behave like brilliant mathematicians.
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9:21 PM | Master Jedi Flatworm
Originally posted on Baldscientist:I wanted to share with you something I think is very cool.? If you are one of my regular readers, you know that I like science fiction and flatworm research, not necessarily in that order.? On the other hand, if you are not a regular reader, check?my blog posts out and…
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8:32 PM | "Play 'Nature' for Me"
Sounds of nature are played for animals rehabilitating at the NC Zoo's Valerie H. Schindler Center:
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7:20 PM | Rarely Seen Jellyfish Relative Caught on Camera
Researchers catch a glimpse of a purple-tinged siphonophore drifting along the sea floor.
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6:35 PM | Single Cell and Single Molecule Anaylsis: A Direct Understanding
When you were commuting to work this morning, maybe you listened to the traffic report on the radio. And that’s often helpful. But you probably heard a lot about cars and roads that may, or may not affect your commute. If you had a GPS traffic app on your phone, you could see current traffic on your own personal route. Improved technology improves your efficiency. And so it is with studies of chromatin regulation. Chromatin regulation is a dynamic combination of effects that are highly […]
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6:35 PM | Single Cell and Single Molecule Anaylsis: A Direct Understanding
When you were commuting to work this morning, maybe you listened to the traffic report on the radio. And that’s often helpful. But you probably heard a lot about cars and roads that may, or may not affect your commute. If you had a GPS traffic app on your phone, you could see current traffic on your own personal route. Improved technology improves your efficiency. And so it is with studies of chromatin regulation. Chromatin regulation is a dynamic combination of effects that are highly […]
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5:49 PM | Assistance Dogs International (Or does the “I” Stand for Inspiring?)
If you’re feeling a tad disheartened by the news, or maybe the view in the mirror when you went to buy new pants (okay, that’s probably just my problem), I have a suggestion: Go out of your way to go to the Assistance Dogs International Conference, wherever it might be held in the years to […]
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4:36 PM | faulty cement well casings cause of fracking related contamination
A new study finds that the well casing – the cement that seals the drill holes – to be the cause of fracking related water contamination.  It has been a little unclear if the well casings were the cause of … Continue reading →
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4:33 PM | GARNet 2014: In pictures
GARNet 2014, Arabidopsis: The Ongoing Green Revolution, is over! We had a great two days of discussions, networking, speciality cupcakes, and of course excellent talks from researchers at all career stages, from ‘one of the fathers of Arabidopsis research’ to a few of the UK’s brightest young PhD students. There is a report on the conference[...]
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4:00 PM | Sugar versus Auxin: which is dominant?
Of the plethora of aspects of plant growth and development that the hormone (OK, plant growth regulator…) auxin is implicated in/involved with (e.g. embryo development, leaf formation, phototropism, gravitropism, fruit development, abscission, root initiation and development…), surely one of the most enduring is apical dominance. Apical dominance is the phenomenon whereby the outgrowth of buds on the side […]
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3:45 PM | 770-Pound Colossal Squid a 'Perfect' Specimen
Creature thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic.
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3:12 PM | From the American Association for Cancer Research—what you should know about cancer in 2014
AACR 2014 Progress Report
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3:00 PM | BHL-Australia is back!
The first published illustration of the Duck-billed Platypus, from The Naturalist's Miscellany, or Coloured figures of natural objects, Vol. 10, George Shaw, 1799.For the past year, BHL-Australia has been very quiet. So quiet, in fact, you would be forgiven for forgetting we exist (unless of course you read about our contribution to the new BHL website).Why the silence? Because, in 2013, we ran out of funding.Our digitisation work didn’t stop, however. Deep in the Museum Victoria library, […]
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2:57 PM | Uomini più bravi in matematica: lo stereotipo che si avvera
Gli uomini sono più portati delle donne per la matematica: lo si sente dire spesso, eppure non esistono evidenze sperimentali forti a sostegno di questa tesi. Si tratterebbe infatti di uno stereotipo di genere fortemente radicato nella nostra società, che ha la capacità di influenzare negativamente le prestazioni delle bambine e delle ragazze, facendo sì che il pregiudizio si avveri. A dimostrarlo è una ricerca condotta dalle Università di Triste e […]
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2:25 PM | Pressione alta, se lo zucchero è peggio del sale
Lo sappiamo, no? Contro ipertensione e rischio cardiovascolare meglio ridurre il consumo di sale. Eppure, secondo una nuova ricerca, pubblicata su The American Journal of Cardiology per la pressione alta sarebbe più pericoloso lo zucchero del sale (in parte, ve lo avevamo già raccontato). Perché? Il consumo di zucchero agirebbe sull’ipotalamo accelerando il battito cardiaco e facendo innalzare la pressione. […]
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2:14 PM | Discoveries of the week
Spasskia brevicarinataThe genus Spasskia Belokobylskij, 1989 (Hymenoptera: Braconidae: Helconinae) is reported for the first time from China. Two species, namely Spasskia brevicarinata Yan et Chen sp. n. and Spasskia indica Singh, Belokobylskij et Chauhan, 2005 are described and illustrated. A key to the species of this genus is updated to include the new species.The new species is rather small - adults are less than one centimeter long. It is similar to a previously described […]
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2:00 PM | Apenheul
Last month I went to the Netherlands to visit family. I didn’t just get to see my immediate family, but also some more distant relatives: the inhabitants of Apenheul Primate Park. Here’s a selection of the many photos I took … Continue reading →
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